HONEYCOMB-130: Separate v3po plugin from HC infra

Creating folders:
- common/
- infra/
- v3po/
- vpp-common/

Change-Id: I2c39e1b17e39e7c0f0628f44aa5fe08563fa06e4
Signed-off-by: Maros Marsalek <mmarsale@cisco.com>

27 files changed, 0 insertions, 3538 deletions

diff --git a/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/DataBroker.java b/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/DataBroker.java
deleted file mode 100644
index c418ed332..000000000
--- a/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/DataBroker.java
+++ /dev/null
@@ -1,198 +0,0 @@
-/*
- * Copyright (c) 2016 Cisco and/or its affiliates.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package io.fd.honeycomb.v3po.data.impl;
-
-import static com.google.common.base.Preconditions.checkNotNull;
-
-import io.fd.honeycomb.v3po.data.DataModification;
-import io.fd.honeycomb.v3po.data.ModifiableDataManager;
-import io.fd.honeycomb.v3po.data.ReadableDataManager;
-import java.io.Closeable;
-import java.io.IOException;
-import java.util.Collections;
-import java.util.Map;
-import javax.annotation.Nonnull;
-import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
-import org.opendaylight.controller.md.sal.common.api.data.TransactionChainListener;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataBrokerExtension;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataChangeListener;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
-import org.opendaylight.controller.md.sal.dom.api.DOMTransactionChain;
-import org.opendaylight.yangtools.concepts.ListenerRegistration;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-/**
- * Data Broker which provides data transaction functionality for YANG capable data provider using {@link NormalizedNode}
- * data format.
- */
-public class DataBroker implements DOMDataBroker, Closeable {
-
-    private static final Logger LOG = LoggerFactory.getLogger(DataBroker.class);
-    private final TransactionFactory transactionFactory;
-
-    /**
-     * Creates DataBroker instance.
-     *
-     * @param transactionFactory transaction producing factory
-     */
-    public DataBroker(final TransactionFactory transactionFactory) {
-        this.transactionFactory = transactionFactory;
-    }
-
-    @Override
-    public DOMDataReadOnlyTransaction newReadOnlyTransaction() {
-        LOG.trace("DataBroker({}).newReadOnlyTransaction()", this);
-        return transactionFactory.newReadOnlyTransaction();
-    }
-
-    @Override
-    public DOMDataReadWriteTransaction newReadWriteTransaction() {
-        LOG.trace("DataBroker({}).newReadWriteTransaction()", this);
-        return transactionFactory.newReadWriteTransaction();
-    }
-
-    @Override
-    public DOMDataWriteTransaction newWriteOnlyTransaction() {
-        LOG.trace("DataBroker({}).newWriteOnlyTransaction()", this);
-        return transactionFactory.newWriteOnlyTransaction();
-    }
-
-    @Override
-    public ListenerRegistration<DOMDataChangeListener> registerDataChangeListener(final LogicalDatastoreType store,
-                                                                                  final YangInstanceIdentifier path,
-                                                                                  final DOMDataChangeListener listener,
-                                                                                  final DataChangeScope triggeringScope) {
-        throw new UnsupportedOperationException("Not supported");
-    }
-
-    @Override
-    public DOMTransactionChain createTransactionChain(final TransactionChainListener listener) {
-        throw new UnsupportedOperationException("Not supported");
-    }
-
-    @Nonnull
-    @Override
-    public Map<Class<? extends DOMDataBrokerExtension>, DOMDataBrokerExtension> getSupportedExtensions() {
-        return Collections.emptyMap();
-    }
-
-    /**
-     * Create DataBroker for a modifiable config DT, but only readable Operational
-     */
-    @Nonnull
-    public static DataBroker create(@Nonnull final ModifiableDataManager configDataTree,
-                             @Nonnull final ReadableDataManager operationalDataTree) {
-        checkNotNull(operationalDataTree, "operationalDataTree should not be null");
-        checkNotNull(configDataTree, "configDataTree should not be null");
-        return new DataBroker(new MainPipelineTxFactory(configDataTree, operationalDataTree));
-    }
-
-    /**
-     * Create DataBroker for modifiable operational DT, but no support for config
-     */
-    @Nonnull
-    public static DataBroker create(@Nonnull final ModifiableDataManager operationalDataTree) {
-        checkNotNull(operationalDataTree, "operationalDataTree should not be null");
-        return new DataBroker(new ContextPipelineTxFactory(operationalDataTree));
-    }
-
-    @Override
-    public void close() throws IOException {
-        // NOOP
-    }
-
-    /**
-     * Transaction provider factory to be used by {@link DataBroker}
-     */
-    public interface TransactionFactory {
-
-        DOMDataReadOnlyTransaction newReadOnlyTransaction();
-
-        DOMDataReadWriteTransaction newReadWriteTransaction();
-
-        DOMDataWriteTransaction newWriteOnlyTransaction();
-    }
-
-    /**
-     * Transaction factory specific for Honeycomb's main pipeline (config: read+write, operational: read-only)
-     */
-    private static class MainPipelineTxFactory implements TransactionFactory {
-        private final ReadableDataManager operationalDataTree;
-        private final ModifiableDataManager configDataTree;
-
-        MainPipelineTxFactory(@Nonnull final ModifiableDataManager configDataTree,
-                              @Nonnull final ReadableDataManager operationalDataTree) {
-            this.operationalDataTree = operationalDataTree;
-            this.configDataTree = configDataTree;
-        }
-
-        @Override
-        public DOMDataReadOnlyTransaction newReadOnlyTransaction() {
-            return ReadOnlyTransaction.create(configDataTree.newModification(), operationalDataTree);
-        }
-
-        @Override
-        public DOMDataReadWriteTransaction newReadWriteTransaction() {
-            final DataModification configModification = configDataTree.newModification();
-            return new ReadWriteTransaction(
-                ReadOnlyTransaction.create(configModification, operationalDataTree),
-                WriteTransaction.createConfigOnly(configModification));
-        }
-
-        @Override
-        public DOMDataWriteTransaction newWriteOnlyTransaction() {
-            return WriteTransaction.createConfigOnly(configDataTree.newModification());
-        }
-    }
-
-    /**
-     * Transaction factory specific for Honeycomb's context pipeline (config: none, operational: read+write)
-     */
-    private static class ContextPipelineTxFactory implements TransactionFactory {
-        private final ModifiableDataManager operationalDataTree;
-
-        ContextPipelineTxFactory(@Nonnull final ModifiableDataManager operationalDataTree) {
-            this.operationalDataTree = operationalDataTree;
-        }
-
-        @Override
-        public DOMDataReadOnlyTransaction newReadOnlyTransaction() {
-            return ReadOnlyTransaction.createOperationalOnly(operationalDataTree);
-        }
-
-        @Override
-        public DOMDataReadWriteTransaction newReadWriteTransaction() {
-            final DataModification dataModification = operationalDataTree.newModification();
-            return new ReadWriteTransaction(
-                ReadOnlyTransaction.createOperationalOnly(dataModification),
-                WriteTransaction.createOperationalOnly(dataModification));
-        }
-
-        @Override
-        public DOMDataWriteTransaction newWriteOnlyTransaction() {
-            return WriteTransaction.createOperationalOnly(operationalDataTree.newModification());
-        }
-    }
-}
-
-
diff --git a/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/ModifiableDataTreeDelegator.java b/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/ModifiableDataTreeDelegator.java
deleted file mode 100644
index 2c2581ec0..000000000
--- a/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/ModifiableDataTreeDelegator.java
+++ /dev/null
@@ -1,236 +0,0 @@
-/*
- * Copyright (c) 2016 Cisco and/or its affiliates.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package io.fd.honeycomb.v3po.data.impl;
-
-import static com.google.common.base.Preconditions.checkNotNull;
-import static com.google.common.util.concurrent.Futures.immediateCheckedFuture;
-
-import com.google.common.annotations.VisibleForTesting;
-import com.google.common.base.Optional;
-import com.google.common.collect.HashMultimap;
-import com.google.common.collect.Multimap;
-import com.google.common.util.concurrent.CheckedFuture;
-import io.fd.honeycomb.v3po.data.DataModification;
-import io.fd.honeycomb.v3po.data.ReadableDataManager;
-import io.fd.honeycomb.v3po.translate.TranslationException;
-import io.fd.honeycomb.v3po.translate.util.RWUtils;
-import io.fd.honeycomb.v3po.translate.util.TransactionMappingContext;
-import io.fd.honeycomb.v3po.translate.util.write.TransactionWriteContext;
-import io.fd.honeycomb.v3po.translate.write.DataObjectUpdate;
-import io.fd.honeycomb.v3po.translate.write.WriteContext;
-import io.fd.honeycomb.v3po.translate.write.registry.WriterRegistry;
-import java.util.Map;
-import javax.annotation.Nonnull;
-import javax.annotation.Nullable;
-import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
-import org.opendaylight.yangtools.binding.data.codec.api.BindingNormalizedNodeSerializer;
-import org.opendaylight.yangtools.yang.binding.DataObject;
-import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidateNode;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-/**
- * Extension of {@link ModifiableDataTreeManager} that propagates data changes to underlying writer layer before they
- * are fully committed in the backing data tree. Data changes are propagated in BA format.
- */
-public final class ModifiableDataTreeDelegator extends ModifiableDataTreeManager {
-
-    private static final Logger LOG = LoggerFactory.getLogger(ModifiableDataTreeDelegator.class);
-    private static final ReadableDataManager EMPTY_OPERATIONAL = p -> immediateCheckedFuture(Optional.absent());
-
-    private final WriterRegistry writerRegistry;
-    private final org.opendaylight.controller.md.sal.binding.api.DataBroker contextBroker;
-    // TODO what to use instead of deprecated BindingNormalizedNodeSerializer ?
-    private final BindingNormalizedNodeSerializer serializer;
-
-    /**
-     * Creates configuration data tree instance.
-     *  @param serializer     service for serialization between Java Binding Data representation and NormalizedNode
-     *                       representation.
-     * @param dataTree       data tree for configuration data representation
-     * @param writerRegistry service for translation between Java Binding Data and data provider, capable of performing
-     * @param contextBroker BA broker providing full access to mapping context data
-     */
-    public ModifiableDataTreeDelegator(@Nonnull final BindingNormalizedNodeSerializer serializer,
-                                       @Nonnull final DataTree dataTree,
-                                       @Nonnull final WriterRegistry writerRegistry,
-                                       @Nonnull final org.opendaylight.controller.md.sal.binding.api.DataBroker contextBroker) {
-        super(dataTree);
-        this.contextBroker = checkNotNull(contextBroker, "contextBroker should not be null");
-        this.serializer = checkNotNull(serializer, "serializer should not be null");
-        this.writerRegistry = checkNotNull(writerRegistry, "writerRegistry should not be null");
-    }
-
-    @Override
-    public DataModification newModification() {
-        return new ConfigSnapshot(super.newModification());
-    }
-
-    private final class ConfigSnapshot extends ModifiableDataTreeManager.ConfigSnapshot {
-
-        private final DataModification untouchedModification;
-
-        /**
-         * @param untouchedModification DataModification captured while this modification/snapshot was created.
-         *                              To be used later while invoking writers to provide them with before state
-         *                              (state without current modifications).
-         *                              It must be captured as close as possible to when current modification started.
-         */
-        ConfigSnapshot(final DataModification untouchedModification) {
-            this.untouchedModification = untouchedModification;
-        }
-
-        /**
-         * Pass the changes to underlying writer layer.
-         * Transform from BI to BA.
-         * Revert(Write data before to subtrees that have been successfully modified before failure) in case of failure.
-         */
-        @Override
-        protected void processCandidate(final DataTreeCandidate candidate)
-            throws TranslationException {
-
-            final DataTreeCandidateNode rootNode = candidate.getRootNode();
-            final YangInstanceIdentifier rootPath = candidate.getRootPath();
-            LOG.trace("ConfigDataTree.modify() rootPath={}, rootNode={}, dataBefore={}, dataAfter={}",
-                rootPath, rootNode, rootNode.getDataBefore(), rootNode.getDataAfter());
-
-            final ModificationDiff modificationDiff =
-                    ModificationDiff.recursivelyFromCandidate(YangInstanceIdentifier.EMPTY, rootNode);
-            LOG.debug("ConfigDataTree.modify() diff: {}", modificationDiff);
-
-            // Distinguish between updates (create + update) and deletes
-            final WriterRegistry.DataObjectUpdates baUpdates = toBindingAware(modificationDiff.getUpdates());
-            LOG.debug("ConfigDataTree.modify() extracted updates={}", baUpdates);
-
-            try (final WriteContext ctx = getTransactionWriteContext()) {
-                writerRegistry.update(baUpdates, ctx);
-
-                final CheckedFuture<Void, TransactionCommitFailedException> contextUpdateResult =
-                    ((TransactionMappingContext) ctx.getMappingContext()).submit();
-                // Blocking on context data update
-                contextUpdateResult.checkedGet();
-
-            } catch (WriterRegistry.BulkUpdateException e) {
-                LOG.warn("Failed to apply all changes", e);
-                LOG.info("Trying to revert successful changes for current transaction");
-
-                try {
-                    e.revertChanges();
-                    LOG.info("Changes successfully reverted");
-                } catch (WriterRegistry.Reverter.RevertFailedException revertFailedException) {
-                    // fail with failed revert
-                    LOG.error("Failed to revert successful changes", revertFailedException);
-                    throw revertFailedException;
-                }
-
-                throw e; // fail with success revert
-            } catch (TransactionCommitFailedException e) {
-                // FIXME revert should probably occur when context is not written successfully
-                final String msg = "Error while updating mapping context data";
-                LOG.error(msg, e);
-                throw new TranslationException(msg, e);
-            } catch (TranslationException e) {
-                LOG.error("Error while processing data change (updates={})", baUpdates, e);
-                throw e;
-            }
-        }
-
-        private TransactionWriteContext getTransactionWriteContext() {
-            // Before Tx must use modification
-            final DOMDataReadOnlyTransaction beforeTx = ReadOnlyTransaction.create(untouchedModification, EMPTY_OPERATIONAL);
-            // After Tx must use current modification
-            final DOMDataReadOnlyTransaction afterTx = ReadOnlyTransaction.create(this, EMPTY_OPERATIONAL);
-            final TransactionMappingContext mappingContext = new TransactionMappingContext(
-                contextBroker.newReadWriteTransaction());
-            return new TransactionWriteContext(serializer, beforeTx, afterTx, mappingContext);
-        }
-
-        private WriterRegistry.DataObjectUpdates toBindingAware(
-                final Map<YangInstanceIdentifier, ModificationDiff.NormalizedNodeUpdate> biNodes) {
-            return ModifiableDataTreeDelegator.toBindingAware(biNodes, serializer);
-        }
-    }
-
-    @VisibleForTesting
-    static WriterRegistry.DataObjectUpdates toBindingAware(
-            final Map<YangInstanceIdentifier, ModificationDiff.NormalizedNodeUpdate> biNodes,
-            final BindingNormalizedNodeSerializer serializer) {
-
-        final Multimap<InstanceIdentifier<?>, DataObjectUpdate> dataObjectUpdates = HashMultimap.create();
-        final Multimap<InstanceIdentifier<?>, DataObjectUpdate.DataObjectDelete> dataObjectDeletes =
-                HashMultimap.create();
-
-        for (Map.Entry<YangInstanceIdentifier, ModificationDiff.NormalizedNodeUpdate> biEntry : biNodes.entrySet()) {
-            final InstanceIdentifier<?> unkeyedIid =
-                    RWUtils.makeIidWildcarded(serializer.fromYangInstanceIdentifier(biEntry.getKey()));
-
-            ModificationDiff.NormalizedNodeUpdate normalizedNodeUpdate = biEntry.getValue();
-            final DataObjectUpdate dataObjectUpdate = toDataObjectUpdate(normalizedNodeUpdate, serializer);
-            if (dataObjectUpdate != null) {
-                if (dataObjectUpdate instanceof DataObjectUpdate.DataObjectDelete) {
-                    dataObjectDeletes.put(unkeyedIid, ((DataObjectUpdate.DataObjectDelete) dataObjectUpdate));
-                } else {
-                    dataObjectUpdates.put(unkeyedIid, dataObjectUpdate);
-                }
-            }
-        }
-        return new WriterRegistry.DataObjectUpdates(dataObjectUpdates, dataObjectDeletes);
-    }
-
-    @Nullable
-    private static DataObjectUpdate toDataObjectUpdate(
-            final ModificationDiff.NormalizedNodeUpdate normalizedNodeUpdate,
-            final BindingNormalizedNodeSerializer serializer) {
-
-        InstanceIdentifier<?> baId = serializer.fromYangInstanceIdentifier(normalizedNodeUpdate.getId());
-        checkNotNull(baId, "Unable to transform instance identifier: %s into BA", normalizedNodeUpdate.getId());
-
-        DataObject dataObjectBefore = getDataObject(serializer,
-                normalizedNodeUpdate.getDataBefore(), normalizedNodeUpdate.getId());
-        DataObject dataObjectAfter =
-                getDataObject(serializer, normalizedNodeUpdate.getDataAfter(), normalizedNodeUpdate.getId());
-
-        return dataObjectBefore == null && dataObjectAfter == null
-                ? null
-                : DataObjectUpdate.create(baId, dataObjectBefore, dataObjectAfter);
-    }
-
-    @Nullable
-    private static DataObject getDataObject(@Nonnull final BindingNormalizedNodeSerializer serializer,
-                                            @Nullable final NormalizedNode<?, ?> data,
-                                            @Nonnull final YangInstanceIdentifier id) {
-        DataObject dataObject = null;
-        if (data != null) {
-            final Map.Entry<InstanceIdentifier<?>, DataObject> dataObjectEntry =
-                    serializer.fromNormalizedNode(id, data);
-            if (dataObjectEntry != null) {
-                dataObject = dataObjectEntry.getValue();
-            }
-        }
-        return dataObject;
-    }
-
-}
-
-
-
diff --git a/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/ModifiableDataTreeManager.java b/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/ModifiableDataTreeManager.java
deleted file mode 100644
index 1082c479b..000000000
--- a/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/ModifiableDataTreeManager.java
+++ /dev/null
@@ -1,122 +0,0 @@
-/*
- * Copyright (c) 2016 Cisco and/or its affiliates.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package io.fd.honeycomb.v3po.data.impl;
-
-import static com.google.common.base.Preconditions.checkNotNull;
-import static com.google.common.util.concurrent.Futures.immediateCheckedFuture;
-
-import com.google.common.base.Optional;
-import com.google.common.util.concurrent.CheckedFuture;
-import io.fd.honeycomb.v3po.data.DataModification;
-import io.fd.honeycomb.v3po.data.ModifiableDataManager;
-import io.fd.honeycomb.v3po.translate.TranslationException;
-import javax.annotation.Nonnull;
-import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataValidationFailedException;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-/**
- * DataTree backed implementation for modifiable data manager.
- */
-public class ModifiableDataTreeManager implements ModifiableDataManager {
-
-    private static final Logger LOG = LoggerFactory.getLogger(ModifiableDataTreeManager.class);
-
-    private final DataTree dataTree;
-
-    public ModifiableDataTreeManager(@Nonnull final DataTree dataTree) {
-        this.dataTree = checkNotNull(dataTree, "dataTree should not be null");
-    }
-
-    @Override
-    public DataModification newModification() {
-        return new ConfigSnapshot();
-    }
-
-    @Override
-    public final CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> read(@Nonnull final YangInstanceIdentifier path) {
-        return newModification().read(path);
-    }
-
-    protected class ConfigSnapshot implements DataModification {
-        private final DataTreeModification modification;
-        private boolean validated = false;
-
-        ConfigSnapshot() {
-            this(dataTree.takeSnapshot().newModification());
-        }
-
-        protected ConfigSnapshot(final DataTreeModification modification) {
-            this.modification = modification;
-        }
-
-        @Override
-        public CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> read(
-                @Nonnull final YangInstanceIdentifier path) {
-            final Optional<NormalizedNode<?, ?>> node = modification.readNode(path);
-            if (LOG.isTraceEnabled() && node.isPresent()) {
-                LOG.trace("ConfigSnapshot.read: {}", node.get());
-            }
-            return immediateCheckedFuture(node);
-        }
-
-        @Override
-        public final void delete(final YangInstanceIdentifier path) {
-            modification.delete(path);
-        }
-
-        @Override
-        public final void merge(final YangInstanceIdentifier path, final NormalizedNode<?, ?> data) {
-            modification.merge(path, data);
-        }
-
-        @Override
-        public final void write(final YangInstanceIdentifier path, final NormalizedNode<?, ?> data) {
-            modification.write(path, data);
-        }
-
-        @Override
-        public final void commit() throws DataValidationFailedException, TranslationException {
-            if(!validated) {
-                validate();
-            }
-            final DataTreeCandidate candidate = dataTree.prepare(modification);
-            processCandidate(candidate);
-            dataTree.commit(candidate);
-        }
-
-        protected void processCandidate(final DataTreeCandidate candidate) throws TranslationException {
-            // NOOP
-        }
-
-        @Override
-        public final void validate() throws DataValidationFailedException {
-            modification.ready();
-            dataTree.validate(modification);
-            validated = true;
-        }
-    }
-}
-
-
-
diff --git a/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/ModificationDiff.java b/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/ModificationDiff.java
deleted file mode 100644
index abc0062de..000000000
--- a/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/ModificationDiff.java
+++ /dev/null
@@ -1,278 +0,0 @@
-/*
- * Copyright (c) 2016 Cisco and/or its affiliates.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package io.fd.honeycomb.v3po.data.impl;
-
-import static com.google.common.base.Preconditions.checkArgument;
-import static com.google.common.base.Preconditions.checkNotNull;
-
-import com.google.common.collect.ImmutableMap;
-import java.util.Collections;
-import java.util.EnumSet;
-import java.util.HashMap;
-import java.util.Map;
-import javax.annotation.Nonnull;
-import javax.annotation.Nullable;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.AugmentationNode;
-import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
-import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
-import org.opendaylight.yangtools.yang.data.api.schema.MixinNode;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidateNode;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.ModificationType;
-
-/**
- * Recursively collects and provides all unique and non-null modifications (modified normalized nodes).
- */
-final class ModificationDiff {
-
-    private static final ModificationDiff EMPTY_DIFF = new ModificationDiff(Collections.emptyMap());
-    private static final EnumSet LEAF_MODIFICATIONS = EnumSet.of(ModificationType.WRITE, ModificationType.DELETE);
-
-    private final Map<YangInstanceIdentifier, NormalizedNodeUpdate> updates;
-
-    private ModificationDiff(@Nonnull Map<YangInstanceIdentifier, NormalizedNodeUpdate> updates) {
-        this.updates = updates;
-    }
-
-    /**
-     * Get processed modifications.
-     *
-     * @return mapped modifications, where key is keyed {@link YangInstanceIdentifier}.
-     */
-    Map<YangInstanceIdentifier, NormalizedNodeUpdate> getUpdates() {
-        return updates;
-    }
-
-    private ModificationDiff merge(final ModificationDiff other) {
-        if (this == EMPTY_DIFF) {
-            return other;
-        }
-
-        if (other == EMPTY_DIFF) {
-            return this;
-        }
-
-        return new ModificationDiff(join(updates, other.updates));
-    }
-
-    private static Map<YangInstanceIdentifier, NormalizedNodeUpdate> join(Map<YangInstanceIdentifier, NormalizedNodeUpdate> first,
-                                                                          Map<YangInstanceIdentifier, NormalizedNodeUpdate> second) {
-        final Map<YangInstanceIdentifier, NormalizedNodeUpdate> merged = new HashMap<>();
-        merged.putAll(first);
-        merged.putAll(second);
-        return merged;
-    }
-
-    private static ModificationDiff create(YangInstanceIdentifier id, DataTreeCandidateNode candidate) {
-        return new ModificationDiff(ImmutableMap.of(id, NormalizedNodeUpdate.create(id, candidate)));
-    }
-
-    /**
-     * Produce an aggregated diff from a candidate node recursively. MixinNodes are ignored as modifications and so
-     * are complex nodes which direct leaves were not modified.
-     */
-    @Nonnull
-    static ModificationDiff recursivelyFromCandidate(@Nonnull final YangInstanceIdentifier yangIid,
-                                                     @Nonnull final DataTreeCandidateNode currentCandidate) {
-        // recursively process child nodes for exact modifications
-        return recursivelyChildrenFromCandidate(yangIid, currentCandidate)
-                // also add modification on current level, if elligible
-                .merge(isModification(currentCandidate)
-                        ? ModificationDiff.create(yangIid, currentCandidate)
-                        : EMPTY_DIFF);
-    }
-
-    /**
-     * Check whether current node was modified. {@link MixinNode}s are ignored
-     * and only nodes which direct leaves(or choices) are modified are considered a modification.
-     */
-    private static Boolean isModification(@Nonnull final DataTreeCandidateNode currentCandidate) {
-        // Mixin nodes are not considered modifications
-        if (isMixin(currentCandidate) && !isAugment(currentCandidate)) {
-            return false;
-        } else {
-            return isCurrentModified(currentCandidate);
-        }
-    }
-
-    private static Boolean isCurrentModified(final @Nonnull DataTreeCandidateNode currentCandidate) {
-        // Check if there are any modified leaves and if so, consider current node as modified
-        final Boolean directLeavesModified = currentCandidate.getChildNodes().stream()
-                .filter(ModificationDiff::isLeaf)
-                // For some reason, we get modifications on unmodified list keys TODO debug and report ODL bug
-                // and that messes up our modifications collection here, so we need to skip
-                .filter(ModificationDiff::isBeforeAndAfterDifferent)
-                .filter(child -> LEAF_MODIFICATIONS.contains(child.getModificationType()))
-                .findFirst()
-                .isPresent();
-
-        return directLeavesModified
-                // Also check choices (choices do not exist in BA world and if anything within a choice was modified,
-                // consider its parent as being modified)
-                || currentCandidate.getChildNodes().stream()
-                        .filter(ModificationDiff::isChoice)
-                        // Recursively check each choice if there was any change to it
-                        .filter(ModificationDiff::isCurrentModified)
-                        .findFirst()
-                        .isPresent();
-    }
-
-    /**
-     * Process all non-leaf child nodes recursively, creating aggregated {@link ModificationDiff}.
-     */
-    private static ModificationDiff recursivelyChildrenFromCandidate(final @Nonnull YangInstanceIdentifier yangIid,
-                                                                     final @Nonnull DataTreeCandidateNode currentCandidate) {
-        // recursively process child nodes for specific modifications
-        return currentCandidate.getChildNodes().stream()
-                // not interested in modifications to leaves
-                .filter(child -> !isLeaf(child))
-                .map(candidate -> recursivelyFromCandidate(yangIid.node(candidate.getIdentifier()), candidate))
-                .reduce(ModificationDiff::merge)
-                .orElse(EMPTY_DIFF);
-    }
-
-    /**
-     * Check whether candidate.before and candidate.after is different. If not return false.
-     */
-    private static boolean isBeforeAndAfterDifferent(@Nonnull final DataTreeCandidateNode candidateNode) {
-        if (candidateNode.getDataBefore().isPresent()) {
-            return !candidateNode.getDataBefore().get().equals(candidateNode.getDataAfter().orNull());
-        }
-
-        // considering not a modification if data after is also null
-        return candidateNode.getDataAfter().isPresent();
-    }
-
-    /**
-     * Check whether candidate node is for a leaf type node.
-     */
-    private static boolean isLeaf(final DataTreeCandidateNode candidateNode) {
-        // orNull intentional, some candidate nodes have both data after and data before null
-        return candidateNode.getDataAfter().orNull() instanceof LeafNode<?>
-                || candidateNode.getDataBefore().orNull() instanceof LeafNode<?>;
-    }
-
-    /**
-     * Check whether candidate node is for a Mixin type node.
-     */
-    private static boolean isMixin(final DataTreeCandidateNode candidateNode) {
-        // orNull intentional, some candidate nodes have both data after and data before null
-        return candidateNode.getDataAfter().orNull() instanceof MixinNode
-                || candidateNode.getDataBefore().orNull() instanceof MixinNode;
-    }
-
-    /**
-     * Check whether candidate node is for an Augmentation type node.
-     */
-    private static boolean isAugment(final DataTreeCandidateNode candidateNode) {
-        // orNull intentional, some candidate nodes have both data after and data before null
-        return candidateNode.getDataAfter().orNull() instanceof AugmentationNode
-                || candidateNode.getDataBefore().orNull() instanceof AugmentationNode;
-    }
-
-    /**
-     * Check whether candidate node is for a Choice type node.
-     */
-    private static boolean isChoice(final DataTreeCandidateNode candidateNode) {
-        // orNull intentional, some candidate nodes have both data after and data before null
-        return candidateNode.getDataAfter().orNull() instanceof ChoiceNode
-                || candidateNode.getDataBefore().orNull() instanceof ChoiceNode;
-    }
-
-    @Override
-    public String toString() {
-        return "ModificationDiff{updates=" + updates + '}';
-    }
-
-    /**
-     * Update to a normalized node identifiable by its {@link YangInstanceIdentifier}.
-     */
-    static final class NormalizedNodeUpdate {
-
-        @Nonnull
-        private final YangInstanceIdentifier id;
-        @Nullable
-        private final NormalizedNode<?, ?> dataBefore;
-        @Nullable
-        private final NormalizedNode<?, ?> dataAfter;
-
-        private NormalizedNodeUpdate(@Nonnull final YangInstanceIdentifier id,
-                                     @Nullable final NormalizedNode<?, ?> dataBefore,
-                                     @Nullable final NormalizedNode<?, ?> dataAfter) {
-            this.id = checkNotNull(id);
-            this.dataAfter = dataAfter;
-            this.dataBefore = dataBefore;
-        }
-
-        @Nullable
-        public NormalizedNode<?, ?> getDataBefore() {
-            return dataBefore;
-        }
-
-        @Nullable
-        public NormalizedNode<?, ?> getDataAfter() {
-            return dataAfter;
-        }
-
-        @Nonnull
-        public YangInstanceIdentifier getId() {
-            return id;
-        }
-
-        static NormalizedNodeUpdate create(@Nonnull final YangInstanceIdentifier id,
-                                           @Nonnull final DataTreeCandidateNode candidate) {
-            return create(id, candidate.getDataBefore().orNull(), candidate.getDataAfter().orNull());
-        }
-
-        static NormalizedNodeUpdate create(@Nonnull final YangInstanceIdentifier id,
-                                           @Nullable final NormalizedNode<?, ?> dataBefore,
-                                           @Nullable final NormalizedNode<?, ?> dataAfter) {
-            checkArgument(!(dataBefore == null && dataAfter == null), "Both before and after data are null");
-            return new NormalizedNodeUpdate(id, dataBefore, dataAfter);
-        }
-
-        @Override
-        public boolean equals(final Object other) {
-            if (this == other) {
-                return true;
-            }
-            if (other == null || getClass() != other.getClass()) {
-                return false;
-            }
-
-            final NormalizedNodeUpdate that = (NormalizedNodeUpdate) other;
-
-            return id.equals(that.id);
-
-        }
-
-        @Override
-        public int hashCode() {
-            return id.hashCode();
-        }
-
-        @Override
-        public String toString() {
-            return "NormalizedNodeUpdate{" + "id=" + id
-                    + ", dataBefore=" + dataBefore
-                    + ", dataAfter=" + dataAfter
-                    + '}';
-        }
-    }
-
-}
diff --git a/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/PersistingDataTreeAdapter.java b/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/PersistingDataTreeAdapter.java
deleted file mode 100644
index 9b71dfd62..000000000
--- a/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/PersistingDataTreeAdapter.java
+++ /dev/null
@@ -1,151 +0,0 @@
-/*
- * Copyright (c) 2016 Cisco and/or its affiliates.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package io.fd.honeycomb.v3po.data.impl;
-
-import static com.google.common.base.Preconditions.checkArgument;
-import static com.google.common.base.Preconditions.checkNotNull;
-
-import com.google.common.base.Optional;
-import io.fd.honeycomb.v3po.translate.util.JsonUtils;
-import java.io.IOException;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.StandardOpenOption;
-import javax.annotation.Nonnull;
-import org.opendaylight.controller.sal.core.api.model.SchemaService;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeSnapshot;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataValidationFailedException;
-import org.opendaylight.yangtools.yang.model.api.SchemaContext;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-/**
- * Adapter for a DataTree that stores current state of data in backing DataTree on each successful commit.
- * Uses JSON format.
- */
-public class PersistingDataTreeAdapter implements DataTree, AutoCloseable {
-
-    private static final Logger LOG = LoggerFactory.getLogger(PersistingDataTreeAdapter.class);
-
-    private final DataTree delegateDependency;
-    private final SchemaService schemaServiceDependency;
-    private final Path path;
-
-    /**
-     * Create new Persisting DataTree adapter
-     *
-     * @param delegate backing data tree that actually handles all the operations
-     * @param persistPath path to a file (existing or not) to be used as storage for persistence. Full control over
-     *                    a file at peristPath is expected
-     * @param schemaService schemaContext provier
-     */
-    public PersistingDataTreeAdapter(@Nonnull final DataTree delegate,
-                                     @Nonnull final SchemaService schemaService,
-                                     @Nonnull final Path persistPath) {
-        this.path = testPersistPath(checkNotNull(persistPath, "persistPath is null"));
-        this.delegateDependency = checkNotNull(delegate, "delegate is null");
-        this.schemaServiceDependency = checkNotNull(schemaService, "schemaService is null");
-    }
-
-    /**
-     * Test whether file at persistPath exists and is readable or create it along with its parent structure
-     */
-    private Path testPersistPath(final Path persistPath) {
-        try {
-            checkArgument(!Files.isDirectory(persistPath), "Path %s points to a directory", persistPath);
-            if(Files.exists(persistPath)) {
-                checkArgument(Files.isReadable(persistPath),
-                    "Provided path %s points to existing, but non-readable file", persistPath);
-                return persistPath;
-            }
-            Files.createDirectories(persistPath.getParent());
-            Files.write(persistPath, new byte[]{}, StandardOpenOption.CREATE);
-        } catch (IOException | UnsupportedOperationException e) {
-            LOG.warn("Provided path for persistence: {} is not usable", persistPath, e);
-            throw new IllegalArgumentException("Path " + persistPath + " cannot be used as ");
-        }
-
-        return persistPath;
-    }
-
-    @Override
-    public DataTreeSnapshot takeSnapshot() {
-        return delegateDependency.takeSnapshot();
-    }
-
-    @Override
-    public void setSchemaContext(final SchemaContext schemaContext) {
-        delegateDependency.setSchemaContext(schemaContext);
-    }
-
-    @Override
-    public void commit(final DataTreeCandidate dataTreeCandidate) {
-        LOG.trace("Commit detected");
-        delegateDependency.commit(dataTreeCandidate);
-        LOG.debug("Delegate commit successful. Persisting data");
-
-        // FIXME doing full read and full write might not be the fastest way of persisting data here
-        final DataTreeSnapshot dataTreeSnapshot = delegateDependency.takeSnapshot();
-
-        // TODO this can be handled in background by a dedicated thread + a limited blocking queue
-        // TODO enable configurable granularity for persists. Maybe doing write on every modification is too much
-        // and we could do bulk persist
-        persistCurrentData(dataTreeSnapshot.readNode(YangInstanceIdentifier.EMPTY));
-    }
-
-    private void persistCurrentData(final Optional<NormalizedNode<?, ?>> currentRoot) {
-        if(currentRoot.isPresent()) {
-            try {
-                LOG.trace("Persisting current data: {} into: {}", currentRoot.get(), path);
-                JsonUtils.writeJsonRoot(currentRoot.get(), schemaServiceDependency.getGlobalContext(),
-                    Files.newOutputStream(path, StandardOpenOption.CREATE, StandardOpenOption.TRUNCATE_EXISTING));
-                LOG.trace("Data persisted successfully in {}", path);
-            } catch (IOException e) {
-                throw new IllegalStateException("Unable to persist current data", e);
-            }
-        } else {
-            LOG.debug("Skipping persistence, since there's no data to persist");
-        }
-    }
-
-    @Override
-    public YangInstanceIdentifier getRootPath() {
-        return delegateDependency.getRootPath();
-    }
-
-    @Override
-    public void validate(final DataTreeModification dataTreeModification) throws DataValidationFailedException {
-        delegateDependency.validate(dataTreeModification);
-    }
-
-    @Override
-    public DataTreeCandidate prepare(
-        final DataTreeModification dataTreeModification) {
-        return delegateDependency.prepare(dataTreeModification);
-    }
-
-    @Override
-    public void close() throws Exception {
-        LOG.trace("Closing {} for {}", getClass().getSimpleName(), path);
-        // NOOP
-    }
-}
diff --git a/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/ReadOnlyTransaction.java b/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/ReadOnlyTransaction.java
deleted file mode 100644
index 2850a0d9a..000000000
--- a/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/ReadOnlyTransaction.java
+++ /dev/null
@@ -1,119 +0,0 @@
-/*
- * Copyright (c) 2016 Cisco and/or its affiliates.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package io.fd.honeycomb.v3po.data.impl;
-
-import static com.google.common.base.Preconditions.checkArgument;
-import static com.google.common.base.Preconditions.checkState;
-import static java.util.Objects.requireNonNull;
-
-import com.google.common.base.Function;
-import com.google.common.base.Optional;
-import com.google.common.util.concurrent.CheckedFuture;
-import com.google.common.util.concurrent.Futures;
-import com.google.common.util.concurrent.ListenableFuture;
-import io.fd.honeycomb.v3po.data.ReadableDataManager;
-import javax.annotation.Nonnull;
-import javax.annotation.Nullable;
-import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
-import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-final class ReadOnlyTransaction implements DOMDataReadOnlyTransaction {
-
-    private static final Logger LOG = LoggerFactory.getLogger(ReadOnlyTransaction.class);
-
-    @Nullable
-    private ReadableDataManager operationalData;
-    @Nullable
-    private ReadableDataManager configSnapshot;
-
-    private boolean closed = false;
-
-    /**
-     * @param configData config data tree manager. Null if config reads are not to be supported
-     * @param operationalData operational data tree manager. Null if operational reads are not to be supported
-     */
-    private ReadOnlyTransaction(@Nullable final ReadableDataManager configData,
-                                @Nullable final ReadableDataManager operationalData) {
-        this.configSnapshot = configData;
-        this.operationalData = operationalData;
-    }
-
-    @Override
-    public synchronized void close() {
-        closed = true;
-        configSnapshot = null;
-        operationalData = null;
-    }
-
-    @Override
-    public synchronized CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> read(
-            final LogicalDatastoreType store,
-            final YangInstanceIdentifier path) {
-        LOG.debug("ReadOnlyTransaction.read(), store={}, path={}", store, path);
-        checkState(!closed, "Transaction has been closed");
-
-        if (store == LogicalDatastoreType.OPERATIONAL) {
-            checkArgument(operationalData != null, "{} reads not supported", store);
-            return operationalData.read(path);
-        } else {
-            checkArgument(configSnapshot != null, "{} reads not supported", store);
-            return configSnapshot.read(path);
-        }
-    }
-
-    @Override
-    public CheckedFuture<Boolean, ReadFailedException> exists(final LogicalDatastoreType store,
-                                                              final YangInstanceIdentifier path) {
-        LOG.debug("ReadOnlyTransaction.exists() store={}, path={}", store, path);
-
-        ListenableFuture<Boolean> listenableFuture = Futures.transform(read(store, path), IS_NODE_PRESENT);
-        return Futures.makeChecked(listenableFuture, ANY_EX_TO_READ_FAILED_EXCEPTION_MAPPER);
-    }
-
-    @Nonnull
-    @Override
-    public Object getIdentifier() {
-        return this;
-    }
-
-    @Nonnull
-    static ReadOnlyTransaction createOperationalOnly(@Nonnull final ReadableDataManager operationalData) {
-        return new ReadOnlyTransaction(null, requireNonNull(operationalData));
-    }
-
-    @Nonnull
-    static ReadOnlyTransaction createConfigOnly(@Nonnull final ReadableDataManager configData) {
-        return new ReadOnlyTransaction(requireNonNull(configData), null);
-    }
-
-    @Nonnull
-    static ReadOnlyTransaction create(@Nonnull final ReadableDataManager configData,
-                                      @Nonnull final ReadableDataManager operationalData) {
-        return new ReadOnlyTransaction(requireNonNull(configData), requireNonNull(operationalData));
-    }
-
-    private static final Function<? super Optional<NormalizedNode<?, ?>>, ? extends Boolean> IS_NODE_PRESENT =
-        (Function<Optional<NormalizedNode<?, ?>>, Boolean>) input -> input == null ? Boolean.FALSE : input.isPresent();
-
-    private static final Function<? super Exception, ReadFailedException> ANY_EX_TO_READ_FAILED_EXCEPTION_MAPPER =
-        (Function<Exception, ReadFailedException>) e -> new ReadFailedException("Exists failed", e);
-}
\ No newline at end of file
diff --git a/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/ReadWriteTransaction.java b/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/ReadWriteTransaction.java
deleted file mode 100644
index 88b46437e..000000000
--- a/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/ReadWriteTransaction.java
+++ /dev/null
@@ -1,101 +0,0 @@
-/*
- * Copyright (c) 2016 Cisco and/or its affiliates.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package io.fd.honeycomb.v3po.data.impl;
-
-import com.google.common.base.Optional;
-import com.google.common.base.Preconditions;
-import com.google.common.util.concurrent.CheckedFuture;
-import com.google.common.util.concurrent.ListenableFuture;
-import javax.annotation.Nonnull;
-import org.opendaylight.controller.md.sal.common.api.TransactionStatus;
-import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
-import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
-import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataReadTransaction;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
-import org.opendaylight.yangtools.yang.common.RpcResult;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-
-/**
- * Composite DOM transaction that delegates reads to a {@link DOMDataReadTransaction} delegate and writes to a {@link
- * DOMDataWriteTransaction} delegate.
- */
-final class ReadWriteTransaction implements DOMDataReadWriteTransaction {
-
-    private final DOMDataReadOnlyTransaction delegateReadTx;
-    private final DOMDataWriteTransaction delegateWriteTx;
-
-    ReadWriteTransaction(@Nonnull final DOMDataReadOnlyTransaction delegateReadTx,
-                         @Nonnull final DOMDataWriteTransaction delegateWriteTx) {
-        this.delegateReadTx = Preconditions.checkNotNull(delegateReadTx, "delegateReadTx should not be null");
-        this.delegateWriteTx = Preconditions.checkNotNull(delegateWriteTx, "delegateWriteTx should not be null");
-    }
-
-    @Override
-    public boolean cancel() {
-        delegateReadTx.close();
-        return delegateWriteTx.cancel();
-    }
-
-    @Override
-    public void put(final LogicalDatastoreType store, final YangInstanceIdentifier path,
-                    final NormalizedNode<?, ?> data) {
-        delegateWriteTx.put(store, path, data);
-    }
-
-    @Override
-    public void merge(final LogicalDatastoreType store, final YangInstanceIdentifier path,
-                      final NormalizedNode<?, ?> data) {
-        delegateWriteTx.merge(store, path, data);
-    }
-
-    @Override
-    public void delete(final LogicalDatastoreType store, final YangInstanceIdentifier path) {
-        delegateWriteTx.delete(store, path);
-    }
-
-    @Override
-    public CheckedFuture<Void, TransactionCommitFailedException> submit() {
-        return delegateWriteTx.submit();
-    }
-
-    @Override
-    public ListenableFuture<RpcResult<TransactionStatus>> commit() {
-        return delegateWriteTx.commit();
-    }
-
-    @Override
-    public CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> read(final LogicalDatastoreType store,
-                                                                                   final YangInstanceIdentifier path) {
-        return delegateReadTx.read(store, path);
-    }
-
-    @Override
-    public CheckedFuture<Boolean, ReadFailedException> exists(final LogicalDatastoreType store,
-                                                              final YangInstanceIdentifier path) {
-        return delegateReadTx.exists(store, path);
-    }
-
-    @Override
-    public Object getIdentifier() {
-        return this;
-    }
-}
-
diff --git a/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/ReadableDataTreeDelegator.java b/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/ReadableDataTreeDelegator.java
deleted file mode 100644
index aff023ebc..000000000
--- a/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/ReadableDataTreeDelegator.java
+++ /dev/null
@@ -1,242 +0,0 @@
-/*
- * Copyright (c) 2016 Cisco and/or its affiliates.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package io.fd.honeycomb.v3po.data.impl;
-
-import static com.google.common.base.Preconditions.checkNotNull;
-import static com.google.common.collect.Iterables.getOnlyElement;
-
-import com.google.common.base.Function;
-import com.google.common.base.Optional;
-import com.google.common.base.Preconditions;
-import com.google.common.collect.Collections2;
-import com.google.common.collect.Multimap;
-import com.google.common.util.concurrent.CheckedFuture;
-import com.google.common.util.concurrent.Futures;
-import io.fd.honeycomb.v3po.data.ReadableDataManager;
-import io.fd.honeycomb.v3po.translate.MappingContext;
-import io.fd.honeycomb.v3po.translate.ModificationCache;
-import io.fd.honeycomb.v3po.translate.read.ReadContext;
-import io.fd.honeycomb.v3po.translate.read.ReadFailedException;
-import io.fd.honeycomb.v3po.translate.read.registry.ReaderRegistry;
-import io.fd.honeycomb.v3po.translate.util.TransactionMappingContext;
-import java.util.Collection;
-import java.util.Map;
-import javax.annotation.Nonnull;
-import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
-import org.opendaylight.yangtools.binding.data.codec.api.BindingNormalizedNodeSerializer;
-import org.opendaylight.yangtools.yang.binding.DataObject;
-import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
-import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
-import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
-import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListEntryNode;
-import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListNode;
-import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
-import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.CollectionNodeBuilder;
-import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.DataContainerNodeAttrBuilder;
-import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
-import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
-import org.opendaylight.yangtools.yang.model.api.SchemaContext;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-/**
- * ReadableDataTree implementation for operational data.
- */
-public final class ReadableDataTreeDelegator implements ReadableDataManager {
-    private static final Logger LOG = LoggerFactory.getLogger(ReadableDataTreeDelegator.class);
-
-    private final BindingNormalizedNodeSerializer serializer;
-    private final ReaderRegistry readerRegistry;
-    private final SchemaContext globalContext;
-    private final org.opendaylight.controller.md.sal.binding.api.DataBroker contextBroker;
-
-    /**
-     * Creates operational data tree instance.
-     * @param serializer     service for serialization between Java Binding Data representation and NormalizedNode
-     *                       representation.
-     * @param globalContext  service for obtaining top level context data from all yang modules.
-     * @param readerRegistry service responsible for translation between DataObjects and data provider.
-     * @param contextBroker BA broker for context data
-     */
-    public ReadableDataTreeDelegator(@Nonnull BindingNormalizedNodeSerializer serializer,
-                                     @Nonnull final SchemaContext globalContext,
-                                     @Nonnull final ReaderRegistry readerRegistry,
-                                     @Nonnull final org.opendaylight.controller.md.sal.binding.api.DataBroker contextBroker) {
-        this.contextBroker = checkNotNull(contextBroker, "contextBroker should not be null");
-        this.globalContext = checkNotNull(globalContext, "globalContext should not be null");
-        this.serializer = checkNotNull(serializer, "serializer should not be null");
-        this.readerRegistry = checkNotNull(readerRegistry, "reader should not be null");
-    }
-
-    @Override
-    public CheckedFuture<Optional<NormalizedNode<?, ?>>,
-            org.opendaylight.controller.md.sal.common.api.data.ReadFailedException> read(
-            @Nonnull final YangInstanceIdentifier yangInstanceIdentifier) {
-
-        try(TransactionMappingContext mappingContext = new TransactionMappingContext(contextBroker.newReadWriteTransaction());
-            ReadContext ctx = new ReadContextImpl(mappingContext)) {
-
-            final Optional<NormalizedNode<?, ?>> value;
-            if (checkNotNull(yangInstanceIdentifier).equals(YangInstanceIdentifier.EMPTY)) {
-                value = readRoot(ctx);
-            } else {
-                value = readNode(yangInstanceIdentifier, ctx);
-            }
-
-            // Submit context mapping updates
-            final CheckedFuture<Void, TransactionCommitFailedException> contextUpdateResult =
-                ((TransactionMappingContext) ctx.getMappingContext()).submit();
-            // Blocking on context data update
-            contextUpdateResult.checkedGet();
-
-            return Futures.immediateCheckedFuture(value);
-
-        } catch (ReadFailedException e) {
-            return Futures.immediateFailedCheckedFuture(
-                new org.opendaylight.controller.md.sal.common.api.data.ReadFailedException(
-                    "Failed to read VPP data", e));
-        } catch (TransactionCommitFailedException e) {
-            // FIXME revert should probably occur when context is not written successfully
-            final String msg = "Error while updating mapping context data";
-            LOG.error(msg, e);
-            return Futures.immediateFailedCheckedFuture(
-                new org.opendaylight.controller.md.sal.common.api.data.ReadFailedException(msg, e)
-            );
-        }
-    }
-
-    private Optional<NormalizedNode<?, ?>> readNode(final YangInstanceIdentifier yangInstanceIdentifier,
-                                                    final ReadContext ctx) throws ReadFailedException {
-        LOG.debug("OperationalDataTree.readNode(), yangInstanceIdentifier={}", yangInstanceIdentifier);
-        final InstanceIdentifier<?> path = serializer.fromYangInstanceIdentifier(yangInstanceIdentifier);
-        checkNotNull(path, "Invalid instance identifier %s. Cannot create BA equivalent.", yangInstanceIdentifier);
-        LOG.debug("OperationalDataTree.readNode(), path={}", path);
-
-        final Optional<? extends DataObject> dataObject;
-
-        dataObject = readerRegistry.read(path, ctx);
-        if (dataObject.isPresent()) {
-            final NormalizedNode<?, ?> value = toNormalizedNodeFunction(path).apply(dataObject.get());
-            return Optional.<NormalizedNode<?, ?>>fromNullable(value);
-        } else {
-            return Optional.absent();
-        }
-    }
-
-    private Optional<NormalizedNode<?, ?>> readRoot(final ReadContext ctx) throws ReadFailedException {
-        LOG.debug("OperationalDataTree.readRoot()");
-
-        final DataContainerNodeAttrBuilder<YangInstanceIdentifier.NodeIdentifier, ContainerNode> dataNodeBuilder =
-                Builders.containerBuilder()
-                        .withNodeIdentifier(new YangInstanceIdentifier.NodeIdentifier(SchemaContext.NAME));
-
-        final Multimap<InstanceIdentifier<? extends DataObject>, ? extends DataObject> dataObjects =
-                readerRegistry.readAll(ctx);
-
-        for (final InstanceIdentifier<? extends DataObject> instanceIdentifier : dataObjects.keySet()) {
-            final YangInstanceIdentifier rootElementId = serializer.toYangInstanceIdentifier(instanceIdentifier);
-            final NormalizedNode<?, ?> node =
-                    wrapDataObjects(rootElementId, instanceIdentifier, dataObjects.get(instanceIdentifier));
-            dataNodeBuilder.withChild((DataContainerChild<?, ?>) node);
-        }
-        return Optional.<NormalizedNode<?, ?>>of(dataNodeBuilder.build());
-    }
-
-    private NormalizedNode<?, ?> wrapDataObjects(final YangInstanceIdentifier yangInstanceIdentifier,
-                                                 final InstanceIdentifier<? extends DataObject> instanceIdentifier,
-                                                 final Collection<? extends DataObject> dataObjects) {
-        final Collection<NormalizedNode<?, ?>> normalizedRootElements = Collections2
-                .transform(dataObjects, toNormalizedNodeFunction(instanceIdentifier));
-
-        final DataSchemaNode schemaNode =
-                globalContext.getDataChildByName(yangInstanceIdentifier.getLastPathArgument().getNodeType());
-        if (schemaNode instanceof ListSchemaNode) {
-            // In case of a list, wrap all the values in a Mixin parent node
-            final ListSchemaNode listSchema = (ListSchemaNode) schemaNode;
-            return wrapListIntoMixinNode(normalizedRootElements, listSchema);
-        } else {
-            Preconditions.checkState(dataObjects.size() == 1, "Singleton list was expected");
-            return getOnlyElement(normalizedRootElements);
-        }
-    }
-
-    private static DataContainerChild<?, ?> wrapListIntoMixinNode(
-            final Collection<NormalizedNode<?, ?>> normalizedRootElements, final ListSchemaNode listSchema) {
-        if (listSchema.getKeyDefinition().isEmpty()) {
-            final CollectionNodeBuilder<UnkeyedListEntryNode, UnkeyedListNode> listBuilder =
-                    Builders.unkeyedListBuilder();
-            for (NormalizedNode<?, ?> normalizedRootElement : normalizedRootElements) {
-                listBuilder.withChild((UnkeyedListEntryNode) normalizedRootElement);
-            }
-            return listBuilder.build();
-        } else {
-            final CollectionNodeBuilder<MapEntryNode, ? extends MapNode> listBuilder =
-                    listSchema.isUserOrdered()
-                            ? Builders.orderedMapBuilder()
-                            : Builders.mapBuilder();
-
-            for (NormalizedNode<?, ?> normalizedRootElement : normalizedRootElements) {
-                listBuilder.withChild((MapEntryNode) normalizedRootElement);
-            }
-            return listBuilder.build();
-        }
-    }
-
-    @SuppressWarnings("unchecked")
-    private Function<DataObject, NormalizedNode<?, ?>> toNormalizedNodeFunction(final InstanceIdentifier path) {
-        return dataObject -> {
-            LOG.trace("OperationalDataTree.toNormalizedNode(), path={}, dataObject={}", path, dataObject);
-            final Map.Entry<YangInstanceIdentifier, NormalizedNode<?, ?>> entry =
-                    serializer.toNormalizedNode(path, dataObject);
-
-            LOG.trace("OperationalDataTree.toNormalizedNode(), normalizedNodeEntry={}", entry);
-            return entry.getValue();
-        };
-    }
-
-    private static final class ReadContextImpl implements ReadContext {
-
-        private final ModificationCache ctx = new ModificationCache();
-        private final MappingContext mappingContext;
-
-        private ReadContextImpl(final MappingContext mappingContext) {
-            this.mappingContext = mappingContext;
-        }
-
-        @Nonnull
-        @Override
-        public ModificationCache getModificationCache() {
-            return ctx;
-        }
-
-        @Nonnull
-        @Override
-        public MappingContext getMappingContext() {
-            return mappingContext;
-        }
-
-        @Override
-        public void close() {
-            // Make sure to clear the storage in case some customizer stored a reference to it to prevent memory leaks
-            ctx.close();
-        }
-    }
-}
diff --git a/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/WriteTransaction.java b/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/WriteTransaction.java
deleted file mode 100644
index c8f9bd3db..000000000
--- a/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/WriteTransaction.java
+++ /dev/null
@@ -1,177 +0,0 @@
-/*
- * Copyright (c) 2016 Cisco and/or its affiliates.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package io.fd.honeycomb.v3po.data.impl;
-
-import static com.google.common.base.Preconditions.checkArgument;
-import static java.util.Objects.requireNonNull;
-import static org.opendaylight.controller.md.sal.common.api.TransactionStatus.CANCELED;
-import static org.opendaylight.controller.md.sal.common.api.TransactionStatus.COMMITED;
-import static org.opendaylight.controller.md.sal.common.api.TransactionStatus.FAILED;
-import static org.opendaylight.controller.md.sal.common.api.TransactionStatus.NEW;
-import static org.opendaylight.controller.md.sal.common.api.TransactionStatus.SUBMITED;
-
-import com.google.common.base.Preconditions;
-import com.google.common.util.concurrent.CheckedFuture;
-import com.google.common.util.concurrent.Futures;
-import com.google.common.util.concurrent.ListenableFuture;
-import io.fd.honeycomb.v3po.data.DataModification;
-import io.fd.honeycomb.v3po.translate.TranslationException;
-import java.util.function.Consumer;
-import javax.annotation.Nonnull;
-import javax.annotation.Nullable;
-import javax.annotation.concurrent.NotThreadSafe;
-import org.opendaylight.controller.md.sal.common.api.TransactionStatus;
-import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
-import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
-import org.opendaylight.yangtools.yang.common.RpcResult;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataValidationFailedException;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-@NotThreadSafe
-final class WriteTransaction implements DOMDataWriteTransaction {
-
-    private static final Logger LOG = LoggerFactory.getLogger(WriteTransaction.class);
-
-    @Nullable
-    private DataModification operationalModification;
-    @Nullable
-    private DataModification configModification;
-    private TransactionStatus status = NEW;
-
-    private WriteTransaction(@Nullable final DataModification configModification,
-                             @Nullable final DataModification operationalModification) {
-        this.operationalModification = operationalModification;
-        this.configModification = configModification;
-    }
-
-    private void checkIsNew() {
-        Preconditions.checkState(status == NEW, "Transaction was submitted or canceled");
-    }
-
-    @Override
-    public void put(final LogicalDatastoreType store, final YangInstanceIdentifier path,
-                    final NormalizedNode<?, ?> data) {
-        LOG.debug("WriteTransaction.put() store={}, path={}, data={}", store, path, data);
-        checkIsNew();
-        handleOperation(store, (modification) -> modification.write(path, data));
-    }
-
-    private void handleOperation(final LogicalDatastoreType store,
-                                 final Consumer<DataModification> r) {
-        switch (store) {
-            case CONFIGURATION:
-                checkArgument(configModification != null, "Modification of %s is not supported", store);
-                r.accept(configModification);
-                break;
-            case OPERATIONAL:
-                checkArgument(operationalModification != null, "Modification of %s is not supported", store);
-                r.accept(operationalModification);
-                break;
-        }
-    }
-
-    @Override
-    public void merge(final LogicalDatastoreType store, final YangInstanceIdentifier path,
-                      final NormalizedNode<?, ?> data) {
-        LOG.debug("WriteTransaction.merge() store={}, path={}, data={}", store, path, data);
-        checkIsNew();
-        handleOperation(store, (modification) -> modification.merge(path, data));
-    }
-
-    @Override
-    public boolean cancel() {
-        if (status != NEW) {
-            // only NEW transactions can be cancelled
-            return false;
-        } else {
-            status = CANCELED;
-            return true;
-        }
-    }
-
-    @Override
-    public void delete(LogicalDatastoreType store, final YangInstanceIdentifier path) {
-        LOG.debug("WriteTransaction.delete() store={}, path={}", store, path);
-        checkIsNew();
-        handleOperation(store, (modification) -> modification.delete(path));
-    }
-
-    @Override
-    public CheckedFuture<Void, TransactionCommitFailedException> submit() {
-        LOG.trace("WriteTransaction.submit()");
-        checkIsNew();
-
-        try {
-            status = SUBMITED;
-
-            // Validate first to catch any issues before attempting commit
-            if (configModification != null) {
-                configModification.validate();
-            }
-            if (operationalModification != null) {
-                operationalModification.validate();
-            }
-
-            if(configModification != null) {
-                configModification.commit();
-            }
-            if(operationalModification != null) {
-                operationalModification.commit();
-            }
-
-            status = COMMITED;
-        } catch (DataValidationFailedException | TranslationException e) {
-            status = FAILED;
-            LOG.error("Failed modify data tree", e);
-            return Futures.immediateFailedCheckedFuture(
-                new TransactionCommitFailedException("Failed to validate DataTreeModification", e));
-        }
-        return Futures.immediateCheckedFuture(null);
-    }
-
-    @Override
-    @Deprecated
-    public ListenableFuture<RpcResult<TransactionStatus>> commit() {
-        throw new UnsupportedOperationException("deprecated");
-    }
-
-    @Override
-    public Object getIdentifier() {
-        return this;
-    }
-
-
-    @Nonnull
-    static WriteTransaction createOperationalOnly(@Nonnull final DataModification operationalData) {
-        return new WriteTransaction(null, requireNonNull(operationalData));
-    }
-
-    @Nonnull
-    static WriteTransaction createConfigOnly(@Nonnull final DataModification configData) {
-        return new WriteTransaction(requireNonNull(configData), null);
-    }
-
-    @Nonnull
-    static WriteTransaction create(@Nonnull final DataModification configData,
-                            @Nonnull final DataModification operationalData) {
-        return new WriteTransaction(requireNonNull(configData), requireNonNull(operationalData));
-    }
-}
diff --git a/v3po/data-impl/src/main/java/org/opendaylight/yang/gen/v1/urn/honeycomb/params/xml/ns/yang/data/impl/rev160411/ConfigDataTreeModule.java b/v3po/data-impl/src/main/java/org/opendaylight/yang/gen/v1/urn/honeycomb/params/xml/ns/yang/data/impl/rev160411/ConfigDataTreeModule.java
deleted file mode 100644
index eabcdcbc8..000000000
--- a/v3po/data-impl/src/main/java/org/opendaylight/yang/gen/v1/urn/honeycomb/params/xml/ns/yang/data/impl/rev160411/ConfigDataTreeModule.java
+++ /dev/null
@@ -1,71 +0,0 @@
-package org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.data.impl.rev160411;
-
-import com.google.common.base.Optional;
-import com.google.common.util.concurrent.CheckedFuture;
-import io.fd.honeycomb.v3po.data.DataModification;
-import io.fd.honeycomb.v3po.data.ModifiableDataManager;
-import io.fd.honeycomb.v3po.data.impl.ModifiableDataTreeDelegator;
-import javax.annotation.Nonnull;
-import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-public class ConfigDataTreeModule extends
-        org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.data.impl.rev160411.AbstractConfigDataTreeModule {
-
-    private static final Logger LOG = LoggerFactory.getLogger(ConfigDataTreeModule.class);
-
-    public ConfigDataTreeModule(org.opendaylight.controller.config.api.ModuleIdentifier identifier,
-                                org.opendaylight.controller.config.api.DependencyResolver dependencyResolver) {
-        super(identifier, dependencyResolver);
-    }
-
-    public ConfigDataTreeModule(org.opendaylight.controller.config.api.ModuleIdentifier identifier,
-                                org.opendaylight.controller.config.api.DependencyResolver dependencyResolver,
-                                org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.data.impl.rev160411.ConfigDataTreeModule oldModule,
-                                java.lang.AutoCloseable oldInstance) {
-        super(identifier, dependencyResolver, oldModule, oldInstance);
-    }
-
-    @Override
-    public void customValidation() {
-        // add custom validation form module attributes here.
-    }
-
-    @Override
-    public java.lang.AutoCloseable createInstance() {
-        LOG.debug("ConfigDataTreeModule.createInstance()");
-        return new CloseableConfigDataTree(
-                new ModifiableDataTreeDelegator(getSerializerDependency(), getDataTreeDependency(),
-                        getWriterRegistryBuilderDependency().build(), getContextBindingBrokerDependency()));
-    }
-
-    private static final class CloseableConfigDataTree implements ModifiableDataManager, AutoCloseable {
-
-        private final ModifiableDataTreeDelegator delegate;
-
-        CloseableConfigDataTree(final ModifiableDataTreeDelegator delegate) {
-            this.delegate = delegate;
-        }
-
-        @Override
-        public void close() throws Exception {
-            LOG.debug("CloseableConfigDataTree.close()");
-            // NOP
-        }
-
-        @Override
-        public DataModification newModification() {
-            LOG.trace("CloseableConfigDataTree.newModification");
-            return delegate.newModification();
-        }
-
-        @Override
-        public CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> read(
-            @Nonnull final YangInstanceIdentifier path) {
-            return delegate.read(path);
-        }
-    }
-}
diff --git a/v3po/data-impl/src/main/java/org/opendaylight/yang/gen/v1/urn/honeycomb/params/xml/ns/yang/data/impl/rev160411/ConfigDataTreeModuleFactory.java b/v3po/data-impl/src/main/java/org/opendaylight/yang/gen/v1/urn/honeycomb/params/xml/ns/yang/data/impl/rev160411/ConfigDataTreeModuleFactory.java
deleted file mode 100644
index 19baab13a..000000000
--- a/v3po/data-impl/src/main/java/org/opendaylight/yang/gen/v1/urn/honeycomb/params/xml/ns/yang/data/impl/rev160411/ConfigDataTreeModuleFactory.java
+++ /dev/null
@@ -1,13 +0,0 @@
-/*
-* Generated file
-*
-* Generated from: yang module name: data-impl yang module local name: config-data-tree
-* Generated by: org.opendaylight.controller.config.yangjmxgenerator.plugin.JMXGenerator
-* Generated at: Sun Apr 10 22:07:29 CEST 2016
-*
-* Do not modify this file unless it is present under src/main directory
-*/
-package org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.data.impl.rev160411;
-public class ConfigDataTreeModuleFactory extends org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.data.impl.rev160411.AbstractConfigDataTreeModuleFactory {
-
-}
diff --git a/v3po/data-impl/src/main/java/org/opendaylight/yang/gen/v1/urn/honeycomb/params/xml/ns/yang/data/impl/rev160411/InMemoryDataTreeModule.java b/v3po/data-impl/src/main/java/org/opendaylight/yang/gen/v1/urn/honeycomb/params/xml/ns/yang/data/impl/rev160411/InMemoryDataTreeModule.java
deleted file mode 100644
index 99e5b396c..000000000
--- a/v3po/data-impl/src/main/java/org/opendaylight/yang/gen/v1/urn/honeycomb/params/xml/ns/yang/data/impl/rev160411/InMemoryDataTreeModule.java
+++ /dev/null
@@ -1,79 +0,0 @@
-package org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.data.impl.rev160411;
-
-import org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.data.api.rev160411.DatatreeType;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.*;
-import org.opendaylight.yangtools.yang.data.impl.schema.tree.InMemoryDataTreeFactory;
-import org.opendaylight.yangtools.yang.model.api.SchemaContext;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-public class InMemoryDataTreeModule extends org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.data.impl.rev160411.AbstractInMemoryDataTreeModule {
-
-    private static final Logger LOG = LoggerFactory.getLogger(InMemoryDataTreeModule.class);
-
-    public InMemoryDataTreeModule(org.opendaylight.controller.config.api.ModuleIdentifier identifier, org.opendaylight.controller.config.api.DependencyResolver dependencyResolver) {
-        super(identifier, dependencyResolver);
-    }
-
-    public InMemoryDataTreeModule(org.opendaylight.controller.config.api.ModuleIdentifier identifier, org.opendaylight.controller.config.api.DependencyResolver dependencyResolver, org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.data.impl.rev160411.InMemoryDataTreeModule oldModule, java.lang.AutoCloseable oldInstance) {
-        super(identifier, dependencyResolver, oldModule, oldInstance);
-    }
-
-    @Override
-    public void customValidation() {
-        // add custom validation form module attributes here.
-    }
-
-    @Override
-    public java.lang.AutoCloseable createInstance() {
-        LOG.debug("InMemoryConfigDataTreeModule.createInstance()");
-        return new CloseableConfigDataTree(getSchemaServiceDependency().getGlobalContext(), getType());
-    }
-
-    private static class CloseableConfigDataTree implements AutoCloseable, DataTree {
-        private final DataTree dataTree;
-
-        CloseableConfigDataTree(final SchemaContext schemaContext, final DatatreeType type) {
-            this.dataTree = InMemoryDataTreeFactory.getInstance().create(
-                type == DatatreeType.Config ? TreeType.CONFIGURATION : TreeType.OPERATIONAL
-            );
-            dataTree.setSchemaContext(schemaContext);
-        }
-
-        @Override
-        public void close() throws Exception {
-            // NOP
-        }
-
-        @Override
-        public DataTreeSnapshot takeSnapshot() {
-            return dataTree.takeSnapshot();
-        }
-
-        @Override
-        public void setSchemaContext(final SchemaContext newSchemaContext) {
-            dataTree.setSchemaContext(newSchemaContext);
-        }
-
-        @Override
-        public void commit(final DataTreeCandidate candidate) {
-            dataTree.commit(candidate);
-        }
-
-        @Override
-        public YangInstanceIdentifier getRootPath() {
-            return dataTree.getRootPath();
-        }
-
-        @Override
-        public void validate(final DataTreeModification modification) throws DataValidationFailedException {
-            dataTree.validate(modification);
-        }
-
-        @Override
-        public DataTreeCandidate prepare(final DataTreeModification modification) {
-            return dataTree.prepare(modification);
-        }
-    }
-}
diff --git a/v3po/data-impl/src/main/java/org/opendaylight/yang/gen/v1/urn/honeycomb/params/xml/ns/yang/data/impl/rev160411/InMemoryDataTreeModuleFactory.java b/v3po/data-impl/src/main/java/org/opendaylight/yang/gen/v1/urn/honeycomb/params/xml/ns/yang/data/impl/rev160411/InMemoryDataTreeModuleFactory.java
deleted file mode 100644
index 34a543949..000000000
--- a/v3po/data-impl/src/main/java/org/opendaylight/yang/gen/v1/urn/honeycomb/params/xml/ns/yang/data/impl/rev160411/InMemoryDataTreeModuleFactory.java
+++ /dev/null
@@ -1,13 +0,0 @@
-/*
-* Generated file
-*
-* Generated from: yang module name: data-impl yang module local name: inmemory-data-tree
-* Generated by: org.opendaylight.controller.config.yangjmxgenerator.plugin.JMXGenerator
-* Generated at: Fri May 13 11:10:56 CEST 2016
-*
-* Do not modify this file unless it is present under src/main directory
-*/
-package org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.data.impl.rev160411;
-public class InMemoryDataTreeModuleFactory extends org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.data.impl.rev160411.AbstractInMemoryDataTreeModuleFactory {
-
-}
diff --git a/v3po/data-impl/src/main/java/org/opendaylight/yang/gen/v1/urn/honeycomb/params/xml/ns/yang/data/impl/rev160411/OperationalDataTreeModule.java b/v3po/data-impl/src/main/java/org/opendaylight/yang/gen/v1/urn/honeycomb/params/xml/ns/yang/data/impl/rev160411/OperationalDataTreeModule.java
deleted file mode 100644
index 1526fddca..000000000
--- a/v3po/data-impl/src/main/java/org/opendaylight/yang/gen/v1/urn/honeycomb/params/xml/ns/yang/data/impl/rev160411/OperationalDataTreeModule.java
+++ /dev/null
@@ -1,65 +0,0 @@
-package org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.data.impl.rev160411;
-
-import com.google.common.base.Optional;
-import com.google.common.util.concurrent.CheckedFuture;
-import io.fd.honeycomb.v3po.data.ReadableDataManager;
-import io.fd.honeycomb.v3po.data.impl.ReadableDataTreeDelegator;
-import javax.annotation.Nonnull;
-import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-public class OperationalDataTreeModule extends
-        org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.data.impl.rev160411.AbstractOperationalDataTreeModule {
-
-    private static final Logger LOG = LoggerFactory.getLogger(OperationalDataTreeModule.class);
-
-    public OperationalDataTreeModule(org.opendaylight.controller.config.api.ModuleIdentifier identifier,
-                                     org.opendaylight.controller.config.api.DependencyResolver dependencyResolver) {
-        super(identifier, dependencyResolver);
-    }
-
-    public OperationalDataTreeModule(org.opendaylight.controller.config.api.ModuleIdentifier identifier,
-                                     org.opendaylight.controller.config.api.DependencyResolver dependencyResolver,
-                                     org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.data.impl.rev160411.OperationalDataTreeModule oldModule,
-                                     java.lang.AutoCloseable oldInstance) {
-        super(identifier, dependencyResolver, oldModule, oldInstance);
-    }
-
-    @Override
-    public void customValidation() {
-        // add custom validation form module attributes here.
-    }
-
-    @Override
-    public java.lang.AutoCloseable createInstance() {
-        LOG.debug("OperationalDataTreeModule.createInstance()");
-        return new CloseableOperationalDataTree(
-                new ReadableDataTreeDelegator(getSerializerDependency(), getSchemaServiceDependency().getGlobalContext(),
-                        getReaderRegistryBuilderDependency().build(), getContextBindingBrokerDependency()));
-    }
-
-    private static final class CloseableOperationalDataTree implements ReadableDataManager, AutoCloseable {
-
-        private final ReadableDataTreeDelegator delegate;
-
-        CloseableOperationalDataTree(final ReadableDataTreeDelegator delegate) {
-            this.delegate = delegate;
-        }
-
-        @Override
-        public void close() throws Exception {
-            LOG.debug("CloseableOperationalDataTree.close()");
-            // NOP
-        }
-
-        @Override
-        public CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> read(
-                @Nonnull final YangInstanceIdentifier path) {
-            LOG.trace("CloseableOperationalDataTree.read path={}", path);
-            return delegate.read(path);
-        }
-    }
-}
diff --git a/v3po/data-impl/src/main/java/org/opendaylight/yang/gen/v1/urn/honeycomb/params/xml/ns/yang/data/impl/rev160411/OperationalDataTreeModuleFactory.java b/v3po/data-impl/src/main/java/org/opendaylight/yang/gen/v1/urn/honeycomb/params/xml/ns/yang/data/impl/rev160411/OperationalDataTreeModuleFactory.java
deleted file mode 100644
index 221eabe5c..000000000
--- a/v3po/data-impl/src/main/java/org/opendaylight/yang/gen/v1/urn/honeycomb/params/xml/ns/yang/data/impl/rev160411/OperationalDataTreeModuleFactory.java
+++ /dev/null
@@ -1,13 +0,0 @@
-/*
-* Generated file
-*
-* Generated from: yang module name: data-impl yang module local name: honeycomb-operational-data-tree
-* Generated by: org.opendaylight.controller.config.yangjmxgenerator.plugin.JMXGenerator
-* Generated at: Sun Apr 10 23:52:21 CEST 2016
-*
-* Do not modify this file unless it is present under src/main directory
-*/
-package org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.data.impl.rev160411;
-public class OperationalDataTreeModuleFactory extends org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.data.impl.rev160411.AbstractOperationalDataTreeModuleFactory {
-
-}
diff --git a/v3po/data-impl/src/main/java/org/opendaylight/yang/gen/v1/urn/honeycomb/params/xml/ns/yang/data/impl/rev160411/PersistingDataTreeAdapterModule.java b/v3po/data-impl/src/main/java/org/opendaylight/yang/gen/v1/urn/honeycomb/params/xml/ns/yang/data/impl/rev160411/PersistingDataTreeAdapterModule.java
deleted file mode 100644
index 145fc4345..000000000
--- a/v3po/data-impl/src/main/java/org/opendaylight/yang/gen/v1/urn/honeycomb/params/xml/ns/yang/data/impl/rev160411/PersistingDataTreeAdapterModule.java
+++ /dev/null
@@ -1,38 +0,0 @@
-package org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.data.impl.rev160411;
-
-import java.nio.file.InvalidPathException;
-import java.nio.file.Paths;
-import org.opendaylight.controller.config.api.JmxAttributeValidationException;
-
-public class PersistingDataTreeAdapterModule extends
-    org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.data.impl.rev160411.AbstractPersistingDataTreeAdapterModule {
-    public PersistingDataTreeAdapterModule(org.opendaylight.controller.config.api.ModuleIdentifier identifier,
-                                           org.opendaylight.controller.config.api.DependencyResolver dependencyResolver) {
-        super(identifier, dependencyResolver);
-    }
-
-    public PersistingDataTreeAdapterModule(org.opendaylight.controller.config.api.ModuleIdentifier identifier,
-                                           org.opendaylight.controller.config.api.DependencyResolver dependencyResolver,
-                                           org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.data.impl.rev160411.PersistingDataTreeAdapterModule oldModule,
-                                           java.lang.AutoCloseable oldInstance) {
-        super(identifier, dependencyResolver, oldModule, oldInstance);
-    }
-
-    @Override
-    public void customValidation() {
-        try {
-            Paths.get(getPersistFilePath());
-        } catch (InvalidPathException e) {
-            throw new JmxAttributeValidationException("Invalid persist path", e, persistFilePathJmxAttribute);
-        }
-    }
-
-    @Override
-    public java.lang.AutoCloseable createInstance() {
-        return new io.fd.honeycomb.v3po.data.impl.PersistingDataTreeAdapter(
-            getDelegateDependency(),
-            getSchemaServiceDependency(),
-            Paths.get(getPersistFilePath()));
-    }
-
-}
diff --git a/v3po/data-impl/src/main/java/org/opendaylight/yang/gen/v1/urn/honeycomb/params/xml/ns/yang/data/impl/rev160411/PersistingDataTreeAdapterModuleFactory.java b/v3po/data-impl/src/main/java/org/opendaylight/yang/gen/v1/urn/honeycomb/params/xml/ns/yang/data/impl/rev160411/PersistingDataTreeAdapterModuleFactory.java
deleted file mode 100644
index 0b7546c65..000000000
--- a/v3po/data-impl/src/main/java/org/opendaylight/yang/gen/v1/urn/honeycomb/params/xml/ns/yang/data/impl/rev160411/PersistingDataTreeAdapterModuleFactory.java
+++ /dev/null
@@ -1,13 +0,0 @@
-/*
-* Generated file
-*
-* Generated from: yang module name: data-impl yang module local name: persisting-data-tree-adapter
-* Generated by: org.opendaylight.controller.config.yangjmxgenerator.plugin.JMXGenerator
-* Generated at: Thu May 12 14:07:24 CEST 2016
-*
-* Do not modify this file unless it is present under src/main directory
-*/
-package org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.data.impl.rev160411;
-public class PersistingDataTreeAdapterModuleFactory extends org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.data.impl.rev160411.AbstractPersistingDataTreeAdapterModuleFactory {
-
-}
diff --git a/v3po/data-impl/src/main/yang/data-impl.yang b/v3po/data-impl/src/main/yang/data-impl.yang
deleted file mode 100644
index ee485538b..000000000
--- a/v3po/data-impl/src/main/yang/data-impl.yang
+++ /dev/null
@@ -1,179 +0,0 @@
-module data-impl {
-    yang-version 1;
-    namespace "urn:honeycomb:params:xml:ns:yang:data:impl";
-    prefix "tutils";
-
-    import config { prefix config; revision-date 2013-04-05; }
-    import opendaylight-md-sal-binding { prefix md-sal-binding; revision-date 2013-10-28;}
-    import opendaylight-md-sal-dom { prefix dom; revision-date 2013-10-28;}
-    import data-api { prefix dapi; revision-date 2016-04-11; }
-    import translate-api { prefix tapi; revision-date 2016-04-06; }
-
-    description
-        "This module contains YANG module definitions
-        for honeycomd data layer";
-
-    revision "2016-04-11" {
-        description
-            "Initial revision.";
-    }
-
-    identity inmemory-data-tree {
-        base config:module-type;
-        config:provided-service dapi:data-tree;
-        config:java-name-prefix InMemoryDataTree;
-    }
-
-    augment "/config:modules/config:module/config:configuration" {
-        case inmemory-data-tree {
-            when "/config:modules/config:module/config:type = 'inmemory-data-tree'";
-
-            container schema-service {
-                uses config:service-ref {
-                    refine type {
-                        mandatory true;
-                        config:required-identity dom:schema-service;
-                    }
-                }
-            }
-
-            leaf type {
-                type dapi:datatree-type;
-                mandatory true;
-            }
-        }
-    }
-
-    identity persisting-data-tree-adapter {
-        base config:module-type;
-        config:provided-service dapi:data-tree;
-        config:java-name-prefix PersistingDataTreeAdapter;
-    }
-
-    augment "/config:modules/config:module/config:configuration" {
-        case persisting-data-tree-adapter {
-            when "/config:modules/config:module/config:type = 'persisting-data-tree-adapter'";
-
-            container delegate {
-                uses config:service-ref {
-                    refine type {
-                        mandatory true;
-                        config:required-identity dapi:data-tree;
-                    }
-                }
-            }
-
-            container schema-service {
-                uses config:service-ref {
-                    refine type {
-                        mandatory true;
-                        config:required-identity dom:schema-service;
-                    }
-                }
-            }
-
-            leaf persist-file-path {
-                type string;
-                mandatory true;
-                description "Path to a file to be used as data storage";
-            }
-        }
-    }
-
-    identity honeycomb-config-data-tree {
-        base config:module-type;
-        config:provided-service dapi:honeycomb-modifiable-data-tree;
-        config:java-name-prefix ConfigDataTree;
-    }
-
-    augment "/config:modules/config:module/config:configuration" {
-        case honeycomb-config-data-tree {
-            when "/config:modules/config:module/config:type = 'honeycomb-config-data-tree'";
-
-            container data-tree {
-                uses config:service-ref {
-                    refine type {
-                        mandatory true;
-                        config:required-identity dapi:data-tree;
-                    }
-                }
-            }
-
-            container serializer {
-                uses config:service-ref {
-                    refine type {
-                        mandatory true;
-                        config:required-identity md-sal-binding:binding-normalized-node-serializer;
-                    }
-                }
-            }
-
-            container writer-registry-builder {
-                uses config:service-ref {
-                    refine type {
-                        mandatory true;
-                        config:required-identity tapi:honeycomb-writer-registry-builder;
-                    }
-                }
-            }
-
-            container context-binding-broker {
-                uses config:service-ref {
-                    refine type {
-                        mandatory true;
-                        config:required-identity md-sal-binding:binding-async-data-broker;
-                    }
-                }
-            }
-        }
-    }
-
-    identity honeycomb-operational-data-tree {
-        base config:module-type;
-        config:provided-service dapi:honeycomb-readable-data-tree;
-        config:java-name-prefix OperationalDataTree;
-    }
-
-    augment "/config:modules/config:module/config:configuration" {
-        case honeycomb-operational-data-tree {
-            when "/config:modules/config:module/config:type = 'honeycomb-operational-data-tree'";
-
-            container schema-service {
-                uses config:service-ref {
-                    refine type {
-                        mandatory true;
-                        config:required-identity dom:schema-service;
-                    }
-                }
-            }
-
-            container serializer {
-                uses config:service-ref {
-                    refine type {
-                        mandatory true;
-                        config:required-identity md-sal-binding:binding-normalized-node-serializer;
-                    }
-                }
-            }
-
-            container reader-registry-builder {
-                uses config:service-ref {
-                    refine type {
-                        mandatory true;
-                        config:required-identity tapi:honeycomb-reader-registry-builder;
-                    }
-                }
-            }
-
-            container context-binding-broker {
-                uses config:service-ref {
-                    refine type {
-                        mandatory true;
-                        config:required-identity md-sal-binding:binding-async-data-broker;
-                    }
-                }
-            }
-
-        }
-    }
-}
\ No newline at end of file
diff --git a/v3po/data-impl/src/test/java/io/fd/honeycomb/v3po/data/impl/DataBrokerTest.java b/v3po/data-impl/src/test/java/io/fd/honeycomb/v3po/data/impl/DataBrokerTest.java
deleted file mode 100644
index 55b92b50b..000000000
--- a/v3po/data-impl/src/test/java/io/fd/honeycomb/v3po/data/impl/DataBrokerTest.java
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
- * Copyright (c) 2016 Cisco and/or its affiliates.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package io.fd.honeycomb.v3po.data.impl;
-
-import static org.junit.Assert.assertTrue;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-import static org.mockito.MockitoAnnotations.initMocks;
-
-import io.fd.honeycomb.v3po.data.ReadableDataManager;
-import io.fd.honeycomb.v3po.data.ModifiableDataManager;
-import io.fd.honeycomb.v3po.data.DataModification;
-import java.util.Map;
-import org.junit.Before;
-import org.junit.Test;
-import org.mockito.Mock;
-import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker;
-import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
-import org.opendaylight.controller.md.sal.common.api.data.TransactionChainListener;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataBrokerExtension;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataChangeListener;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-
-public class DataBrokerTest {
-
-    @Mock
-    private ReadableDataManager operationalData;
-    @Mock
-    private ModifiableDataManager confiDataTree;
-    @Mock
-    private DataModification configSnapshot;
-    private DataBroker broker;
-
-    @Before
-    public void setUp() {
-        initMocks(this);
-        when(confiDataTree.newModification()).thenReturn(configSnapshot);
-        broker = DataBroker.create(confiDataTree, operationalData);
-    }
-
-    @Test
-    public void testNewReadWriteTransaction() {
-        final DOMDataReadWriteTransaction readWriteTx = broker.newReadWriteTransaction();
-        final YangInstanceIdentifier path = mock(YangInstanceIdentifier.class);
-        readWriteTx.read(LogicalDatastoreType.CONFIGURATION, path);
-
-        // verify that read and write transactions use the same config snapshot
-        verify(configSnapshot).read(path);
-        verify(confiDataTree).newModification();
-    }
-
-    @Test
-    public void testNewWriteOnlyTransaction() {
-        final DOMDataWriteTransaction writeTx = broker.newWriteOnlyTransaction();
-
-        // verify that write transactions use config snapshot
-        verify(confiDataTree).newModification();
-    }
-
-    @Test
-    public void testNewReadOnlyTransaction() {
-        final DOMDataReadOnlyTransaction readTx = broker.newReadOnlyTransaction();
-
-        final YangInstanceIdentifier path = mock(YangInstanceIdentifier.class);
-        readTx.read(LogicalDatastoreType.CONFIGURATION, path);
-
-        // verify that read transactions use config snapshot
-        verify(configSnapshot).read(path);
-    }
-
-    @Test(expected = UnsupportedOperationException.class)
-    public void testRegisterDataChangeListener() {
-        final YangInstanceIdentifier path = mock(YangInstanceIdentifier.class);
-        final DOMDataChangeListener listener = mock(DOMDataChangeListener.class);
-        broker.registerDataChangeListener(LogicalDatastoreType.OPERATIONAL, path, listener,
-                AsyncDataBroker.DataChangeScope.BASE);
-    }
-
-    @Test(expected = UnsupportedOperationException.class)
-    public void testCreateTransactionChain() {
-        final TransactionChainListener listener = mock(TransactionChainListener.class);
-        broker.createTransactionChain(listener);
-    }
-
-    @Test
-    public void testGetSupportedExtensions() {
-        final Map<Class<? extends DOMDataBrokerExtension>, DOMDataBrokerExtension> supportedExtensions =
-                broker.getSupportedExtensions();
-        assertTrue(supportedExtensions.isEmpty());
-    }
-
-
-}
\ No newline at end of file
diff --git a/v3po/data-impl/src/test/java/io/fd/honeycomb/v3po/data/impl/ModifiableDataTreeDelegatorTest.java b/v3po/data-impl/src/test/java/io/fd/honeycomb/v3po/data/impl/ModifiableDataTreeDelegatorTest.java
deleted file mode 100644
index 915d738e9..000000000
--- a/v3po/data-impl/src/test/java/io/fd/honeycomb/v3po/data/impl/ModifiableDataTreeDelegatorTest.java
+++ /dev/null
@@ -1,269 +0,0 @@
-/*
- * Copyright (c) 2016 Cisco and/or its affiliates.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package io.fd.honeycomb.v3po.data.impl;
-
-import static org.hamcrest.CoreMatchers.hasItem;
-import static org.hamcrest.CoreMatchers.hasItems;
-import static org.hamcrest.CoreMatchers.is;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertThat;
-import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.fail;
-import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.eq;
-import static org.mockito.Mockito.doReturn;
-import static org.mockito.Mockito.doThrow;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-import static org.mockito.MockitoAnnotations.initMocks;
-
-import com.google.common.base.Optional;
-import com.google.common.collect.HashMultimap;
-import com.google.common.collect.ImmutableMultimap;
-import com.google.common.collect.Multimap;
-import com.google.common.util.concurrent.CheckedFuture;
-import com.google.common.util.concurrent.Futures;
-import io.fd.honeycomb.v3po.data.DataModification;
-import io.fd.honeycomb.v3po.translate.TranslationException;
-import io.fd.honeycomb.v3po.translate.write.DataObjectUpdate;
-import io.fd.honeycomb.v3po.translate.write.WriteContext;
-import io.fd.honeycomb.v3po.translate.write.registry.WriterRegistry;
-import java.util.AbstractMap;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.Map;
-import org.junit.Before;
-import org.junit.Test;
-import org.mockito.Mock;
-import org.opendaylight.controller.md.sal.binding.api.DataBroker;
-import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
-import org.opendaylight.mdsal.binding.dom.codec.api.BindingNormalizedNodeSerializer;
-import org.opendaylight.yangtools.yang.binding.DataObject;
-import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
-import org.opendaylight.yangtools.yang.common.QName;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
-import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree;
-
-public class ModifiableDataTreeDelegatorTest {
-
-    @Mock
-    private WriterRegistry writer;
-    @Mock
-    private BindingNormalizedNodeSerializer serializer;
-    private DataTree dataTree;
-    @Mock
-    private org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification modification;
-    @Mock
-    private DataBroker contextBroker;
-    @Mock
-    private org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction tx;
-
-    private ModifiableDataTreeManager configDataTree;
-
-    static final InstanceIdentifier<?> DEFAULT_ID = InstanceIdentifier.create(DataObject.class);
-    static DataObject DEFAULT_DATA_OBJECT = mockDataObject("serialized", DataObject.class);
-
-    @Before
-    public void setUp() throws Exception {
-        initMocks(this);
-        dataTree = ModificationDiffTest.getDataTree();
-        when(contextBroker.newReadWriteTransaction()).thenReturn(tx);
-        when(tx.submit()).thenReturn(Futures.immediateCheckedFuture(null));
-
-        when(serializer.fromYangInstanceIdentifier(any(YangInstanceIdentifier.class))).thenReturn(((InstanceIdentifier) DEFAULT_ID));
-        final Map.Entry<InstanceIdentifier<?>, DataObject> parsed = new AbstractMap.SimpleEntry<>(DEFAULT_ID, DEFAULT_DATA_OBJECT);
-        when(serializer.fromNormalizedNode(any(YangInstanceIdentifier.class), any(NormalizedNode.class))).thenReturn(parsed);
-
-        configDataTree = new ModifiableDataTreeDelegator(serializer, dataTree, writer, contextBroker);
-    }
-
-    @Test
-    public void testRead() throws Exception {
-        final ContainerNode topContainer = ModificationDiffTest.getTopContainer("topContainer");
-        ModificationDiffTest.addNodeToTree(dataTree, topContainer, ModificationDiffTest.TOP_CONTAINER_ID);
-        final CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> read =
-                configDataTree.read(ModificationDiffTest.TOP_CONTAINER_ID);
-        final CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> read2 =
-                configDataTree.newModification().read(ModificationDiffTest.TOP_CONTAINER_ID);
-        final Optional<NormalizedNode<?, ?>> normalizedNodeOptional = read.get();
-        final Optional<NormalizedNode<?, ?>> normalizedNodeOptional2 = read2.get();
-
-        assertEquals(normalizedNodeOptional, normalizedNodeOptional2);
-        assertTrue(normalizedNodeOptional.isPresent());
-        assertEquals(topContainer, normalizedNodeOptional.get());
-        assertEquals(dataTree.takeSnapshot().readNode(ModificationDiffTest.TOP_CONTAINER_ID), normalizedNodeOptional);
-    }
-
-    @Test
-    public void testCommitSuccessful() throws Exception {
-        final MapNode nestedList = ModificationDiffTest.getNestedList("listEntry", "listValue");
-
-        final DataModification dataModification = configDataTree.newModification();
-        dataModification.write(ModificationDiffTest.NESTED_LIST_ID, nestedList);
-        dataModification.validate();
-        dataModification.commit();
-
-        final Multimap<InstanceIdentifier<?>, DataObjectUpdate> map = HashMultimap.create();
-        map.put(DEFAULT_ID, DataObjectUpdate.create(DEFAULT_ID, DEFAULT_DATA_OBJECT, DEFAULT_DATA_OBJECT));
-        verify(writer).update(eq(new WriterRegistry.DataObjectUpdates(map, ImmutableMultimap.of())), any(WriteContext.class));
-        assertEquals(nestedList, dataTree.takeSnapshot().readNode(ModificationDiffTest.NESTED_LIST_ID).get());
-    }
-
-    private static DataObject mockDataObject(final String name, final Class<? extends DataObject> classToMock) {
-        final DataObject dataBefore = mock(classToMock, name);
-        doReturn(classToMock).when(dataBefore).getImplementedInterface();
-        return dataBefore;
-    }
-
-    @Test
-    public void testCommitUndoSuccessful() throws Exception {
-        final MapNode nestedList = ModificationDiffTest.getNestedList("listEntry", "listValue");
-
-        // Fail on update:
-        final WriterRegistry.Reverter reverter = mock(WriterRegistry.Reverter.class);
-        final TranslationException failedOnUpdateException = new TranslationException("update failed");
-        doThrow(new WriterRegistry.BulkUpdateException(Collections.singleton(DEFAULT_ID), reverter, failedOnUpdateException))
-                .when(writer).update(any(WriterRegistry.DataObjectUpdates.class), any(WriteContext.class));
-
-        try {
-            // Run the test
-            final DataModification dataModification = configDataTree.newModification();
-            dataModification.write(ModificationDiffTest.NESTED_LIST_ID, nestedList);
-            dataModification.validate();
-            dataModification.commit();
-            fail("WriterRegistry.BulkUpdateException was expected");
-        } catch (WriterRegistry.BulkUpdateException e) {
-            verify(writer).update(any(WriterRegistry.DataObjectUpdates.class), any(WriteContext.class));
-            assertThat(e.getFailedIds(), hasItem(DEFAULT_ID));
-            verify(reverter).revert();
-            assertEquals(failedOnUpdateException, e.getCause());
-        }
-    }
-
-    @Test
-    public void testCommitUndoFailed() throws Exception {
-        final MapNode nestedList = ModificationDiffTest.getNestedList("listEntry", "listValue");
-
-        // Fail on update:
-        final WriterRegistry.Reverter reverter = mock(WriterRegistry.Reverter.class);
-        final TranslationException failedOnUpdateException = new TranslationException("update failed");
-        doThrow(new WriterRegistry.BulkUpdateException(Collections.singleton(DEFAULT_ID), reverter, failedOnUpdateException))
-                .when(writer).update(any(WriterRegistry.DataObjectUpdates.class), any(WriteContext.class));
-
-        // Fail on revert:
-        final TranslationException failedOnRevertException = new TranslationException("revert failed");
-        doThrow(new WriterRegistry.Reverter.RevertFailedException(Collections.emptySet(), failedOnRevertException))
-                .when(reverter).revert();
-
-        try {
-            // Run the test
-            final DataModification dataModification = configDataTree.newModification();
-            dataModification.write(ModificationDiffTest.NESTED_LIST_ID, nestedList);
-            dataModification.validate();
-            dataModification.commit();
-            fail("WriterRegistry.Reverter.RevertFailedException was expected");
-        } catch (WriterRegistry.Reverter.RevertFailedException e) {
-            verify(writer).update(any(WriterRegistry.DataObjectUpdates.class), any(WriteContext.class));
-            verify(reverter).revert();
-            assertEquals(failedOnRevertException, e.getCause());
-        }
-    }
-
-    private abstract static class DataObject1 implements DataObject {}
-    private abstract static class DataObject2 implements DataObject {}
-    private abstract static class DataObject3 implements DataObject {}
-
-    @Test
-    public void testToBindingAware() throws Exception {
-        when(serializer.fromNormalizedNode(any(YangInstanceIdentifier.class), eq(null))).thenReturn(null);
-
-        final Map<YangInstanceIdentifier, ModificationDiff.NormalizedNodeUpdate> biNodes = new HashMap<>();
-        // delete
-        final QName nn1 = QName.create("namespace", "nn1");
-        final YangInstanceIdentifier yid1 = mockYid(nn1);
-        final InstanceIdentifier iid1 = mockIid(yid1, DataObject1.class);
-        final NormalizedNode nn1B = mockNormalizedNode(nn1);
-        final DataObject1 do1B = mockDataObject(yid1, iid1, nn1B, DataObject1.class);
-        biNodes.put(yid1, ModificationDiff.NormalizedNodeUpdate.create(yid1, nn1B, null));
-
-        // create
-        final QName nn2 = QName.create("namespace", "nn1");
-        final YangInstanceIdentifier yid2 = mockYid(nn2);
-        final InstanceIdentifier iid2 = mockIid(yid2, DataObject2.class);;
-        final NormalizedNode nn2A = mockNormalizedNode(nn2);
-        final DataObject2 do2A = mockDataObject(yid2, iid2, nn2A, DataObject2.class);
-        biNodes.put(yid2, ModificationDiff.NormalizedNodeUpdate.create(yid2, null, nn2A));
-
-        // update
-        final QName nn3 = QName.create("namespace", "nn1");
-        final YangInstanceIdentifier yid3 = mockYid(nn3);
-        final InstanceIdentifier iid3 = mockIid(yid3, DataObject3.class);
-        final NormalizedNode nn3B = mockNormalizedNode(nn3);
-        final DataObject3 do3B = mockDataObject(yid3, iid3, nn3B, DataObject3.class);
-        final NormalizedNode nn3A = mockNormalizedNode(nn3);
-        final DataObject3 do3A = mockDataObject(yid3, iid3, nn3A, DataObject3.class);;
-        biNodes.put(yid3, ModificationDiff.NormalizedNodeUpdate.create(yid3, nn3B, nn3A));
-
-        final WriterRegistry.DataObjectUpdates dataObjectUpdates =
-                ModifiableDataTreeDelegator.toBindingAware(biNodes, serializer);
-
-        assertThat(dataObjectUpdates.getDeletes().size(), is(1));
-        assertThat(dataObjectUpdates.getDeletes().keySet(), hasItem(((InstanceIdentifier<?>) iid1)));
-        assertThat(dataObjectUpdates.getDeletes().values(), hasItem(
-                ((DataObjectUpdate.DataObjectDelete) DataObjectUpdate.create(iid1, do1B, null))));
-
-        assertThat(dataObjectUpdates.getUpdates().size(), is(2));
-        assertThat(dataObjectUpdates.getUpdates().keySet(), hasItems((InstanceIdentifier<?>) iid2, (InstanceIdentifier<?>) iid3));
-        assertThat(dataObjectUpdates.getUpdates().values(), hasItems(
-                DataObjectUpdate.create(iid2, null, do2A),
-                DataObjectUpdate.create(iid3, do3B, do3A)));
-
-        assertThat(dataObjectUpdates.getTypeIntersection().size(), is(3));
-    }
-
-    private <D extends DataObject> D mockDataObject(final YangInstanceIdentifier yid1,
-                                       final InstanceIdentifier iid1,
-                                       final NormalizedNode nn1B,
-                                       final Class<D> type) {
-        final D do1B = mock(type);
-        when(serializer.fromNormalizedNode(yid1, nn1B)).thenReturn(new AbstractMap.SimpleEntry<>(iid1, do1B));
-        return do1B;
-    }
-
-    private NormalizedNode mockNormalizedNode(final QName nn1) {
-        final NormalizedNode nn1B = mock(NormalizedNode.class);
-        when(nn1B.getNodeType()).thenReturn(nn1);
-        return nn1B;
-    }
-
-    private InstanceIdentifier mockIid(final YangInstanceIdentifier yid1,
-                                       final Class<? extends DataObject> type) {
-        final InstanceIdentifier iid1 = InstanceIdentifier.create(type);
-        when(serializer.fromYangInstanceIdentifier(yid1)).thenReturn(iid1);
-        return iid1;
-    }
-
-    private YangInstanceIdentifier mockYid(final QName nn1) {
-        final YangInstanceIdentifier yid1 = mock(YangInstanceIdentifier.class);
-        when(yid1.getLastPathArgument()).thenReturn(new YangInstanceIdentifier.NodeIdentifier(nn1));
-        return yid1;
-    }
-}
diff --git a/v3po/data-impl/src/test/java/io/fd/honeycomb/v3po/data/impl/ModificationDiffTest.java b/v3po/data-impl/src/test/java/io/fd/honeycomb/v3po/data/impl/ModificationDiffTest.java
deleted file mode 100644
index bc7582e93..000000000
--- a/v3po/data-impl/src/test/java/io/fd/honeycomb/v3po/data/impl/ModificationDiffTest.java
+++ /dev/null
@@ -1,427 +0,0 @@
-package io.fd.honeycomb.v3po.data.impl;
-
-import static org.hamcrest.CoreMatchers.hasItems;
-import static org.hamcrest.CoreMatchers.is;
-import static org.junit.Assert.assertThat;
-
-import java.util.Map;
-import org.junit.Test;
-import org.opendaylight.yangtools.yang.common.QName;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
-import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
-import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidateTip;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeSnapshot;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataValidationFailedException;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.TipProducingDataTree;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.TreeType;
-import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
-import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
-import org.opendaylight.yangtools.yang.data.impl.schema.tree.InMemoryDataTreeFactory;
-import org.opendaylight.yangtools.yang.model.api.SchemaContext;
-import org.opendaylight.yangtools.yang.parser.spi.meta.ReactorException;
-import org.opendaylight.yangtools.yang.parser.stmt.reactor.CrossSourceStatementReactor;
-import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.YangInferencePipeline;
-import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.YangStatementSourceImpl;
-
-public class ModificationDiffTest {
-
-    static final QName TOP_CONTAINER_QNAME =
-            QName.create("urn:opendaylight:params:xml:ns:yang:test:diff", "2015-01-05", "top-container");
-    static final QName STRING_LEAF_QNAME = QName.create(TOP_CONTAINER_QNAME, "string");
-    static final QName NAME_LEAF_QNAME = QName.create(TOP_CONTAINER_QNAME, "name");
-    static final QName TEXT_LEAF_QNAME = QName.create(TOP_CONTAINER_QNAME, "text");
-    static final QName NESTED_LIST_QNAME = QName.create(TOP_CONTAINER_QNAME, "nested-list");
-    static final QName DEEP_LIST_QNAME = QName.create(TOP_CONTAINER_QNAME, "deep-list");
-
-    static final QName WITH_CHOICE_CONTAINER_QNAME =
-            QName.create("urn:opendaylight:params:xml:ns:yang:test:diff", "2015-01-05", "with-choice");
-    static final QName CHOICE_QNAME = QName.create(WITH_CHOICE_CONTAINER_QNAME, "choice");
-    static final QName IN_CASE1_LEAF_QNAME = QName.create(WITH_CHOICE_CONTAINER_QNAME, "in-case1");
-    static final QName IN_CASE2_LEAF_QNAME = QName.create(WITH_CHOICE_CONTAINER_QNAME, "in-case2");
-
-    static final YangInstanceIdentifier TOP_CONTAINER_ID = YangInstanceIdentifier.of(TOP_CONTAINER_QNAME);
-    static final YangInstanceIdentifier NESTED_LIST_ID = TOP_CONTAINER_ID.node(new YangInstanceIdentifier.NodeIdentifier(NESTED_LIST_QNAME));
-
-
-    @Test
-    public void testInitialWrite() throws Exception {
-        final TipProducingDataTree dataTree = getDataTree();
-        final DataTreeModification dataTreeModification = getModification(dataTree);
-        final NormalizedNode<?, ?> topContainer = getTopContainer("string1");
-        final YangInstanceIdentifier TOP_CONTAINER_ID = YangInstanceIdentifier.of(TOP_CONTAINER_QNAME);
-        dataTreeModification.write(TOP_CONTAINER_ID, topContainer);
-        final DataTreeCandidateTip prepare = prepareModification(dataTree, dataTreeModification);
-
-        final ModificationDiff modificationDiff = getModificationDiff(prepare);
-
-        assertThat(modificationDiff.getUpdates().size(), is(1));
-        assertThat(modificationDiff.getUpdates().values().size(), is(1));
-        assertUpdate(modificationDiff.getUpdates().values().iterator().next(), TOP_CONTAINER_ID, null, topContainer);
-    }
-
-    @Test
-    public void testInitialWriteForContainerWithChoice() throws Exception {
-        final TipProducingDataTree dataTree = getDataTree();
-        final DataTreeModification dataTreeModification = getModification(dataTree);
-        final ContainerNode containerWithChoice = Builders.containerBuilder()
-                .withNodeIdentifier(new YangInstanceIdentifier.NodeIdentifier(WITH_CHOICE_CONTAINER_QNAME))
-                .withChild(Builders.choiceBuilder()
-                        .withNodeIdentifier(new YangInstanceIdentifier.NodeIdentifier(CHOICE_QNAME))
-                        .withChild(ImmutableNodes.leafNode(IN_CASE1_LEAF_QNAME, "withinCase1"))
-                        .build())
-                .build();
-        final YangInstanceIdentifier WITH_CHOICE_CONTAINER_ID = YangInstanceIdentifier.of(WITH_CHOICE_CONTAINER_QNAME);
-        dataTreeModification.write(WITH_CHOICE_CONTAINER_ID, containerWithChoice);
-        final DataTreeCandidateTip prepare = prepareModification(dataTree, dataTreeModification);
-
-        final Map<YangInstanceIdentifier, ModificationDiff.NormalizedNodeUpdate> updates = getModificationDiff(prepare).getUpdates();
-
-        assertThat(updates.size(), is(1));
-        assertUpdate(getNormalizedNodeUpdateForAfterType(updates, ContainerNode.class),
-                WITH_CHOICE_CONTAINER_ID, null, containerWithChoice);
-    }
-
-    private DataTreeModification getModification(final TipProducingDataTree dataTree) {
-        final DataTreeSnapshot dataTreeSnapshot = dataTree.takeSnapshot();
-        return dataTreeSnapshot.newModification();
-    }
-
-    @Test
-    public void testWriteNonPresenceEmptyContainer() throws Exception {
-        final TipProducingDataTree dataTree = getDataTree();
-        final DataTreeModification dataTreeModification = getModification(dataTree);
-        final NormalizedNode<?, ?> topContainer = ImmutableNodes.containerNode(TOP_CONTAINER_QNAME);
-        dataTreeModification.write(TOP_CONTAINER_ID, topContainer);
-        final DataTreeCandidateTip prepare = prepareModification(dataTree, dataTreeModification);
-
-        final ModificationDiff modificationDiff = getModificationDiff(prepare);
-
-        assertThat(modificationDiff.getUpdates().size(), is(0));
-    }
-
-    private DataTreeCandidateTip prepareModification(final TipProducingDataTree dataTree,
-                                                     final DataTreeModification dataTreeModification)
-            throws DataValidationFailedException {
-        dataTreeModification.ready();
-        dataTree.validate(dataTreeModification);
-        return dataTree.prepare(dataTreeModification);
-    }
-
-    @Test
-    public void testUpdateWrite() throws Exception {
-        final TipProducingDataTree dataTree = getDataTree();
-        final ContainerNode topContainer = getTopContainer("string1");
-        addNodeToTree(dataTree, topContainer, TOP_CONTAINER_ID);
-
-        final DataTreeModification dataTreeModification = getModification(dataTree);
-        final NormalizedNode<?, ?> topContainerAfter = getTopContainer("string2");
-        dataTreeModification.write(TOP_CONTAINER_ID, topContainerAfter);
-        final DataTreeCandidateTip prepare = prepareModification(dataTree, dataTreeModification);
-
-        final Map<YangInstanceIdentifier, ModificationDiff.NormalizedNodeUpdate> updates = getModificationDiff(prepare).getUpdates();
-
-        assertThat(updates.size(), is(1));
-        assertThat(updates.values().size(), is(1));
-        assertUpdate(updates.values().iterator().next(), TOP_CONTAINER_ID, topContainer, topContainerAfter);
-    }
-
-    private ModificationDiff getModificationDiff(final DataTreeCandidateTip prepare) {
-        return ModificationDiff.recursivelyFromCandidate(YangInstanceIdentifier.EMPTY, prepare.getRootNode());
-    }
-
-    @Test
-    public void testUpdateMerge() throws Exception {
-        final TipProducingDataTree dataTree = getDataTree();
-        final ContainerNode topContainer = getTopContainer("string1");
-        addNodeToTree(dataTree, topContainer, TOP_CONTAINER_ID);
-
-        final DataTreeModification dataTreeModification = getModification(dataTree);
-        final NormalizedNode<?, ?> topContainerAfter = getTopContainer("string2");
-        dataTreeModification.merge(TOP_CONTAINER_ID, topContainerAfter);
-        final DataTreeCandidateTip prepare = prepareModification(dataTree, dataTreeModification);
-
-        final Map<YangInstanceIdentifier, ModificationDiff.NormalizedNodeUpdate> updates = getModificationDiff(prepare).getUpdates();
-        assertThat(updates.size(), is(1));
-        assertThat(updates.values().size(), is(1));
-        assertUpdate(updates.values().iterator().next(), TOP_CONTAINER_ID, topContainer, topContainerAfter);
-    }
-
-    @Test
-    public void testUpdateDelete() throws Exception {
-        final TipProducingDataTree dataTree = getDataTree();
-        final ContainerNode topContainer = getTopContainer("string1");
-        addNodeToTree(dataTree, topContainer, TOP_CONTAINER_ID);
-
-        final DataTreeModification dataTreeModification = getModification(dataTree);
-        dataTreeModification.delete(TOP_CONTAINER_ID);
-        final DataTreeCandidateTip prepare = prepareModification(dataTree, dataTreeModification);
-
-        final Map<YangInstanceIdentifier, ModificationDiff.NormalizedNodeUpdate> updates = getModificationDiff(prepare).getUpdates();
-        assertThat(updates.size(), is(1));
-        assertThat(updates.values().size(), is(1));
-        assertUpdate(updates.values().iterator().next(), TOP_CONTAINER_ID, topContainer, null);
-    }
-
-    @Test
-    public void testWriteAndUpdateInnerList() throws Exception {
-        final TipProducingDataTree dataTree = getDataTree();
-
-        DataTreeSnapshot dataTreeSnapshot = dataTree.takeSnapshot();
-        DataTreeModification dataTreeModification = dataTreeSnapshot.newModification();
-        final YangInstanceIdentifier listId =
-                YangInstanceIdentifier.create(
-                        new YangInstanceIdentifier.NodeIdentifier(TOP_CONTAINER_QNAME),
-                        new YangInstanceIdentifier.NodeIdentifier(NESTED_LIST_QNAME));
-
-        final MapNode mapNode = getNestedList("name1", "text");
-        final YangInstanceIdentifier listEntryId = listId.node(mapNode.getValue().iterator().next().getIdentifier());
-        dataTreeModification.write(listId, mapNode);
-        dataTreeModification.ready();
-        dataTree.validate(dataTreeModification);
-        DataTreeCandidateTip prepare = dataTree.prepare(dataTreeModification);
-
-        Map<YangInstanceIdentifier, ModificationDiff.NormalizedNodeUpdate> updates = getModificationDiff(prepare).getUpdates();
-
-        assertThat(updates.size(), is(1));
-        assertUpdate(getNormalizedNodeUpdateForAfterType(updates, MapEntryNode.class),
-                listEntryId, null, mapNode.getValue().iterator().next());
-
-        // Commit so that update can be tested next
-        dataTree.commit(prepare);
-
-        YangInstanceIdentifier listItemId = listId.node(
-                new YangInstanceIdentifier.NodeIdentifierWithPredicates(NESTED_LIST_QNAME, NAME_LEAF_QNAME, "name1"));
-        MapEntryNode mapEntryNode =
-                getNestedList("name1", "text-update").getValue().iterator().next();
-
-        dataTreeSnapshot = dataTree.takeSnapshot();
-        dataTreeModification = dataTreeSnapshot.newModification();
-        dataTreeModification.write(listItemId, mapEntryNode);
-        dataTreeModification.ready();
-        dataTree.validate(dataTreeModification);
-        prepare = dataTree.prepare(dataTreeModification);
-
-        updates = getModificationDiff(prepare).getUpdates();
-        assertThat(updates.size(), is(1 /*Actual list entry*/));
-    }
-//
-    private void assertUpdate(final ModificationDiff.NormalizedNodeUpdate update,
-                              final YangInstanceIdentifier idExpected,
-                              final NormalizedNode<?, ?> beforeExpected,
-                              final NormalizedNode<?, ?> afterExpected) {
-        assertThat(update.getId(), is(idExpected));
-        assertThat(update.getDataBefore(), is(beforeExpected));
-        assertThat(update.getDataAfter(), is(afterExpected));
-    }
-
-    @Test
-    public void testWriteTopContainerAndInnerList() throws Exception {
-        final TipProducingDataTree dataTree = getDataTree();
-
-        DataTreeSnapshot dataTreeSnapshot = dataTree.takeSnapshot();
-        DataTreeModification dataTreeModification = dataTreeSnapshot.newModification();
-
-        final ContainerNode topContainer = getTopContainer("string1");
-        dataTreeModification.write(TOP_CONTAINER_ID, topContainer);
-
-        final YangInstanceIdentifier listId =
-                YangInstanceIdentifier.create(
-                        new YangInstanceIdentifier.NodeIdentifier(TOP_CONTAINER_QNAME),
-                        new YangInstanceIdentifier.NodeIdentifier(NESTED_LIST_QNAME));
-
-        final MapNode mapNode = getNestedList("name1", "text");
-        final YangInstanceIdentifier listEntryId = listId.node(mapNode.getValue().iterator().next().getIdentifier());
-
-        dataTreeModification.write(listId, mapNode);
-
-        final DataTreeCandidateTip prepare = prepareModification(dataTree, dataTreeModification);
-
-        final Map<YangInstanceIdentifier, ModificationDiff.NormalizedNodeUpdate> updates = getModificationDiff(prepare).getUpdates();
-
-        assertThat(updates.size(), is(2));
-        assertThat(updates.values().size(), is(2));
-        assertUpdate(getNormalizedNodeUpdateForAfterType(updates, ContainerNode.class), TOP_CONTAINER_ID, null,
-                Builders.containerBuilder(topContainer).withChild(mapNode).build());
-        assertUpdate(getNormalizedNodeUpdateForAfterType(updates, MapEntryNode.class), listEntryId, null, mapNode.getValue().iterator().next());
-        // Assert that keys of the updates map are not wildcarded YID
-        assertThat(updates.keySet(), hasItems(
-                TOP_CONTAINER_ID,
-                listEntryId));
-    }
-
-    private ModificationDiff.NormalizedNodeUpdate getNormalizedNodeUpdateForAfterType(
-            final Map<YangInstanceIdentifier, ModificationDiff.NormalizedNodeUpdate> updates,
-            final Class<? extends NormalizedNode<?, ?>> containerNodeClass) {
-        return updates.values().stream()
-                    .filter(update -> containerNodeClass.isAssignableFrom(update.getDataAfter().getClass()))
-                    .findFirst().get();
-    }
-
-    private ModificationDiff.NormalizedNodeUpdate getNormalizedNodeUpdateForBeforeType(
-            final Map<YangInstanceIdentifier, ModificationDiff.NormalizedNodeUpdate> updates,
-            final Class<? extends NormalizedNode<?, ?>> containerNodeClass) {
-        return updates.values().stream()
-                    .filter(update -> containerNodeClass.isAssignableFrom(update.getDataBefore().getClass()))
-                    .findFirst().get();
-    }
-
-    @Test
-    public void testWriteDeepList() throws Exception {
-        final TipProducingDataTree dataTree = getDataTree();
-
-        DataTreeSnapshot dataTreeSnapshot = dataTree.takeSnapshot();
-        DataTreeModification dataTreeModification = dataTreeSnapshot.newModification();
-
-        YangInstanceIdentifier listId =
-                YangInstanceIdentifier.create(
-                        new YangInstanceIdentifier.NodeIdentifier(TOP_CONTAINER_QNAME),
-                        new YangInstanceIdentifier.NodeIdentifier(NESTED_LIST_QNAME));
-
-        MapNode mapNode = getNestedList("name1", "text");
-        dataTreeModification.write(listId, mapNode);
-
-        dataTreeModification.ready();
-        dataTree.validate(dataTreeModification);
-        DataTreeCandidateTip prepare = dataTree.prepare(dataTreeModification);
-        dataTree.commit(prepare);
-
-        dataTreeSnapshot = dataTree.takeSnapshot();
-        dataTreeModification = dataTreeSnapshot.newModification();
-
-        final YangInstanceIdentifier.NodeIdentifierWithPredicates nestedListNodeId =
-                new YangInstanceIdentifier.NodeIdentifierWithPredicates(NESTED_LIST_QNAME, NAME_LEAF_QNAME, "name1");
-        listId = YangInstanceIdentifier.create(
-                new YangInstanceIdentifier.NodeIdentifier(TOP_CONTAINER_QNAME),
-                new YangInstanceIdentifier.NodeIdentifier(NESTED_LIST_QNAME),
-                nestedListNodeId);
-        final YangInstanceIdentifier deepListId =
-                listId.node(new YangInstanceIdentifier.NodeIdentifier(DEEP_LIST_QNAME));
-        final YangInstanceIdentifier deepListEntryId = deepListId.node(
-                new YangInstanceIdentifier.NodeIdentifierWithPredicates(DEEP_LIST_QNAME, NAME_LEAF_QNAME, "name1"));
-
-        final MapEntryNode deepListEntry = getDeepList("name1").getValue().iterator().next();
-        // Merge parent list, just to see no modifications on it
-        dataTreeModification.merge(
-                listId,
-                Builders.mapEntryBuilder().withNodeIdentifier(nestedListNodeId)
-                        .withChild(ImmutableNodes.leafNode(NAME_LEAF_QNAME, "name1")).build());
-        dataTreeModification.merge(
-                deepListId,
-                Builders.mapBuilder()
-                        .withNodeIdentifier(new YangInstanceIdentifier.NodeIdentifier(DEEP_LIST_QNAME))
-                        .build());
-        dataTreeModification.merge(
-                deepListEntryId,
-                deepListEntry);
-
-        dataTreeModification.ready();
-        dataTree.validate(dataTreeModification);
-        prepare = dataTree.prepare(dataTreeModification);
-        dataTree.commit(prepare);
-
-        final Map<YangInstanceIdentifier, ModificationDiff.NormalizedNodeUpdate> updates = getModificationDiff(prepare).getUpdates();
-        assertThat(updates.size(), is(1));
-        assertUpdate(getNormalizedNodeUpdateForAfterType(updates, MapEntryNode.class), deepListEntryId, null, deepListEntry);
-    }
-
-    @Test
-    public void testDeleteInnerListItem() throws Exception {
-        final TipProducingDataTree dataTree = getDataTree();
-
-        DataTreeSnapshot dataTreeSnapshot = dataTree.takeSnapshot();
-        DataTreeModification dataTreeModification = dataTreeSnapshot.newModification();
-        final YangInstanceIdentifier listId =
-                YangInstanceIdentifier.create(
-                        new YangInstanceIdentifier.NodeIdentifier(TOP_CONTAINER_QNAME),
-                        new YangInstanceIdentifier.NodeIdentifier(NESTED_LIST_QNAME));
-
-        final MapNode mapNode = getNestedList("name1", "text");
-        dataTreeModification.write(listId, mapNode);
-        dataTreeModification.ready();
-        dataTree.validate(dataTreeModification);
-        DataTreeCandidateTip prepare = dataTree.prepare(dataTreeModification);
-
-        // Commit so that update can be tested next
-        dataTree.commit(prepare);
-
-        YangInstanceIdentifier listItemId = listId.node(
-                new YangInstanceIdentifier.NodeIdentifierWithPredicates(NESTED_LIST_QNAME, NAME_LEAF_QNAME, "name1"));
-
-        dataTreeSnapshot = dataTree.takeSnapshot();
-        dataTreeModification = dataTreeSnapshot.newModification();
-        dataTreeModification.delete(listItemId);
-        dataTreeModification.ready();
-        dataTree.validate(dataTreeModification);
-        prepare = dataTree.prepare(dataTreeModification);
-
-        final Map<YangInstanceIdentifier, ModificationDiff.NormalizedNodeUpdate> updates = getModificationDiff(prepare).getUpdates();
-        assertThat(updates.size(), is(1));
-        assertUpdate(getNormalizedNodeUpdateForBeforeType(updates, MapEntryNode.class), listItemId, mapNode.getValue().iterator().next(), null);
-    }
-
-    static void addNodeToTree(final DataTree dataTree, final NormalizedNode<?, ?> node,
-                                              final YangInstanceIdentifier id)
-            throws DataValidationFailedException {
-        DataTreeSnapshot dataTreeSnapshot = dataTree.takeSnapshot();
-        DataTreeModification dataTreeModification = dataTreeSnapshot.newModification();
-        dataTreeModification.write(id, node);
-        dataTreeModification.ready();
-        dataTree.validate(dataTreeModification);
-        DataTreeCandidate prepare = dataTree.prepare(dataTreeModification);
-        dataTree.commit(prepare);
-    }
-
-    static TipProducingDataTree getDataTree() throws ReactorException {
-        final TipProducingDataTree dataTree = InMemoryDataTreeFactory.getInstance().create(TreeType.CONFIGURATION);
-        dataTree.setSchemaContext(getSchemaCtx());
-        return dataTree;
-    }
-
-    static ContainerNode getTopContainer(final String stringValue) {
-        return Builders.containerBuilder()
-                .withNodeIdentifier(new YangInstanceIdentifier.NodeIdentifier(TOP_CONTAINER_QNAME))
-                .withChild(ImmutableNodes.leafNode(STRING_LEAF_QNAME, stringValue))
-                .build();
-    }
-
-    static MapNode getNestedList(final String listItemName, final String text) {
-        return Builders.mapBuilder()
-                .withNodeIdentifier(new YangInstanceIdentifier.NodeIdentifier(NESTED_LIST_QNAME))
-                .withChild(
-                        Builders.mapEntryBuilder()
-                                .withNodeIdentifier(
-                                        new YangInstanceIdentifier.NodeIdentifierWithPredicates(NESTED_LIST_QNAME,
-                                                NAME_LEAF_QNAME, listItemName))
-                                .withChild(ImmutableNodes.leafNode(NAME_LEAF_QNAME, listItemName))
-                                .withChild(ImmutableNodes.leafNode(TEXT_LEAF_QNAME, text))
-                                .build()
-                )
-                .build();
-    }
-
-    private MapNode getDeepList(final String listItemName) {
-        return Builders.mapBuilder()
-                .withNodeIdentifier(new YangInstanceIdentifier.NodeIdentifier(DEEP_LIST_QNAME))
-                .withChild(
-                        Builders.mapEntryBuilder()
-                                .withNodeIdentifier(
-                                        new YangInstanceIdentifier.NodeIdentifierWithPredicates(DEEP_LIST_QNAME,
-                                                NAME_LEAF_QNAME, listItemName))
-                                .withChild(ImmutableNodes.leafNode(NAME_LEAF_QNAME, listItemName))
-                                .build()
-                )
-                .build();
-    }
-
-    private static SchemaContext getSchemaCtx() throws ReactorException {
-        final CrossSourceStatementReactor.BuildAction buildAction = YangInferencePipeline.RFC6020_REACTOR.newBuild();
-        buildAction.addSource(new YangStatementSourceImpl(ModificationDiffTest.class.getResourceAsStream("/test-diff.yang")));
-        return buildAction.buildEffective();
-    }
-}
\ No newline at end of file
diff --git a/v3po/data-impl/src/test/java/io/fd/honeycomb/v3po/data/impl/PersistingDataTreeAdapterTest.java b/v3po/data-impl/src/test/java/io/fd/honeycomb/v3po/data/impl/PersistingDataTreeAdapterTest.java
deleted file mode 100644
index 523d9dd70..000000000
--- a/v3po/data-impl/src/test/java/io/fd/honeycomb/v3po/data/impl/PersistingDataTreeAdapterTest.java
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * Copyright (c) 2016 Cisco and/or its affiliates.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package io.fd.honeycomb.v3po.data.impl;
-
-import static org.junit.Assert.fail;
-import static org.mockito.Matchers.any;
-import static org.mockito.Mockito.doThrow;
-import static org.mockito.Mockito.times;
-import static org.mockito.Mockito.verify;
-
-import java.nio.file.Files;
-import java.nio.file.Path;
-import org.junit.Before;
-import org.junit.Test;
-import org.mockito.Mock;
-import org.mockito.MockitoAnnotations;
-import org.opendaylight.controller.sal.core.api.model.SchemaService;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeSnapshot;
-
-public class PersistingDataTreeAdapterTest {
-
-    @Mock
-    private DataTree delegatingDataTree;
-    @Mock
-    private SchemaService schemaService;
-    @Mock
-    private DataTreeSnapshot snapshot;
-
-    private Path tmpPersistFile;
-
-    private PersistingDataTreeAdapter persistingDataTreeAdapter;
-
-    @Before
-    public void setUp() throws Exception {
-        MockitoAnnotations.initMocks(this);
-        tmpPersistFile = Files.createTempFile("testing-hc-persistence", "json");
-        persistingDataTreeAdapter = new PersistingDataTreeAdapter(delegatingDataTree, schemaService, tmpPersistFile);
-    }
-
-    @Test
-    public void testNoPersistOnFailure() throws Exception {
-        doThrow(new IllegalStateException("testing errors")).when(delegatingDataTree).commit(any(DataTreeCandidate.class));
-
-        try {
-            persistingDataTreeAdapter.commit(null);
-            fail("Exception expected");
-        } catch (IllegalStateException e) {
-            verify(delegatingDataTree, times(0)).takeSnapshot();
-            verify(delegatingDataTree).commit(any(DataTreeCandidate.class));
-        }
-    }
-
-}
\ No newline at end of file
diff --git a/v3po/data-impl/src/test/java/io/fd/honeycomb/v3po/data/impl/ReadOnlyTransactionTest.java b/v3po/data-impl/src/test/java/io/fd/honeycomb/v3po/data/impl/ReadOnlyTransactionTest.java
deleted file mode 100644
index a13621725..000000000
--- a/v3po/data-impl/src/test/java/io/fd/honeycomb/v3po/data/impl/ReadOnlyTransactionTest.java
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * Copyright (c) 2016 Cisco and/or its affiliates.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package io.fd.honeycomb.v3po.data.impl;
-
-import static org.junit.Assert.assertNotNull;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-import static org.mockito.MockitoAnnotations.initMocks;
-
-import com.google.common.base.Optional;
-import com.google.common.util.concurrent.CheckedFuture;
-import io.fd.honeycomb.v3po.data.ReadableDataManager;
-import io.fd.honeycomb.v3po.data.DataModification;
-import org.junit.Before;
-import org.junit.Test;
-import org.mockito.Mock;
-import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
-import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-
-public class ReadOnlyTransactionTest {
-
-    @Mock
-    private ReadableDataManager operationalData;
-    @Mock
-    private DataModification configSnapshot;
-
-    private ReadOnlyTransaction readOnlyTx;
-
-    @Before
-    public void setUp() {
-        initMocks(this);
-        readOnlyTx = ReadOnlyTransaction.create(configSnapshot, operationalData);
-    }
-
-    @Test
-    public void testExists() {
-        final YangInstanceIdentifier path = mock(YangInstanceIdentifier.class);
-        final CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException>
-                future = mock(CheckedFuture.class);
-        when(operationalData.read(path)).thenReturn(future);
-
-        readOnlyTx.exists(LogicalDatastoreType.OPERATIONAL, path);
-
-        verify(operationalData).read(path);
-    }
-
-    @Test
-    public void testGetIdentifier() {
-        assertNotNull(readOnlyTx.getIdentifier());
-    }
-}
\ No newline at end of file
diff --git a/v3po/data-impl/src/test/java/io/fd/honeycomb/v3po/data/impl/ReadWriteTransactionTest.java b/v3po/data-impl/src/test/java/io/fd/honeycomb/v3po/data/impl/ReadWriteTransactionTest.java
deleted file mode 100644
index 1b67cd967..000000000
--- a/v3po/data-impl/src/test/java/io/fd/honeycomb/v3po/data/impl/ReadWriteTransactionTest.java
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
- * Copyright (c) 2016 Cisco and/or its affiliates.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package io.fd.honeycomb.v3po.data.impl;
-
-import static org.junit.Assert.assertNotNull;
-import static org.mockito.Mockito.verify;
-import static org.mockito.MockitoAnnotations.initMocks;
-
-import org.junit.Before;
-import org.junit.Test;
-import org.mockito.Mock;
-import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-
-public class ReadWriteTransactionTest {
-
-    @Mock
-    private DOMDataReadOnlyTransaction readTx;
-
-    @Mock
-    private DOMDataWriteTransaction writeTx;
-
-    private LogicalDatastoreType store;
-
-    @Mock
-    private YangInstanceIdentifier path;
-
-    @Mock
-    private NormalizedNode<?, ?> data;
-
-    private ReadWriteTransaction readWriteTx;
-
-    @Before
-    public void setUp() {
-        initMocks(this);
-        store = LogicalDatastoreType.CONFIGURATION;
-        readWriteTx = new ReadWriteTransaction(readTx, writeTx);
-    }
-
-    @Test
-    public void testCancel() {
-        readWriteTx.cancel();
-        verify(writeTx).cancel();
-    }
-
-    @Test
-    public void testPut() {
-        readWriteTx.put(store, path, data);
-        verify(writeTx).put(store, path, data);
-    }
-
-    @Test
-    public void testMerge() {
-        readWriteTx.merge(store, path, data);
-        verify(writeTx).merge(store, path, data);
-    }
-
-    @Test
-    public void testDelete() {
-        readWriteTx.delete(store, path);
-        verify(writeTx).delete(store, path);
-    }
-
-    @Test
-    public void testSubmit() throws Exception {
-        readWriteTx.submit();
-        verify(writeTx).submit();
-    }
-
-
-    @SuppressWarnings("deprecation")
-    @Test
-    public void testCommit() throws Exception {
-        readWriteTx.commit();
-        verify(writeTx).commit();
-    }
-
-    @Test
-    public void testRead() {
-        readWriteTx.read(store, path);
-        verify(readTx).read(store, path);
-    }
-
-    @Test
-    public void testExists() {
-        readWriteTx.exists(store, path);
-        verify(readTx).exists(store, path);
-    }
-
-    @Test
-    public void testGetIdentifier() throws Exception {
-        assertNotNull(readWriteTx.getIdentifier());
-    }
-}
\ No newline at end of file
diff --git a/v3po/data-impl/src/test/java/io/fd/honeycomb/v3po/data/impl/ReadableDataTreeDelegatorTest.java b/v3po/data-impl/src/test/java/io/fd/honeycomb/v3po/data/impl/ReadableDataTreeDelegatorTest.java
deleted file mode 100644
index e1b0720e7..000000000
--- a/v3po/data-impl/src/test/java/io/fd/honeycomb/v3po/data/impl/ReadableDataTreeDelegatorTest.java
+++ /dev/null
@@ -1,193 +0,0 @@
-/*
- * Copyright (c) 2016 Cisco and/or its affiliates.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package io.fd.honeycomb.v3po.data.impl;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.fail;
-import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.same;
-import static org.mockito.Mockito.doReturn;
-import static org.mockito.Mockito.doThrow;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-import static org.mockito.MockitoAnnotations.initMocks;
-
-import com.google.common.base.Optional;
-import com.google.common.collect.Iterables;
-import com.google.common.collect.LinkedListMultimap;
-import com.google.common.collect.Multimap;
-import com.google.common.util.concurrent.CheckedFuture;
-import com.google.common.util.concurrent.Futures;
-import io.fd.honeycomb.v3po.translate.read.ReadContext;
-import io.fd.honeycomb.v3po.translate.read.registry.ReaderRegistry;
-import java.util.Collections;
-import java.util.Map;
-import org.junit.Before;
-import org.junit.Test;
-import org.mockito.Mock;
-import org.opendaylight.controller.md.sal.binding.api.DataBroker;
-import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
-import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VppState;
-import org.opendaylight.yangtools.binding.data.codec.api.BindingNormalizedNodeSerializer;
-import org.opendaylight.yangtools.yang.binding.DataObject;
-import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
-import org.opendaylight.yangtools.yang.common.QName;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
-import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
-import org.opendaylight.yangtools.yang.model.api.SchemaContext;
-
-public class ReadableDataTreeDelegatorTest {
-
-    @Mock
-    private BindingNormalizedNodeSerializer serializer;
-    @Mock
-    private ReaderRegistry reader;
-
-    private ReadableDataTreeDelegator operationalData;
-
-    @Mock
-    private InstanceIdentifier<DataObject> id;
-    @Mock
-    private Map.Entry<YangInstanceIdentifier, NormalizedNode<?, ?>> entry;
-    @Mock
-    private SchemaContext globalContext;
-    @Mock
-    private DataSchemaNode schemaNode;
-    @Mock
-    private ReadContext readCtx;
-    @Mock
-    private DOMDataBroker netconfMonitoringBroker;
-    @Mock
-    private DOMDataReadOnlyTransaction domDataReadOnlyTransaction;
-    @Mock
-    private DataBroker contextBroker;
-
-    @Before
-    public void setUp() {
-        initMocks(this);
-        operationalData = new ReadableDataTreeDelegator(serializer, globalContext, reader, contextBroker);
-        doReturn(schemaNode).when(globalContext).getDataChildByName(any(QName.class));
-
-        doReturn(domDataReadOnlyTransaction).when(netconfMonitoringBroker).newReadOnlyTransaction();
-        doReturn(Futures.immediateCheckedFuture(Optional.absent())).when(domDataReadOnlyTransaction)
-            .read(any(LogicalDatastoreType.class), any(YangInstanceIdentifier.class));
-
-        final org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction ctxTransaction = mock(
-            org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction.class);
-        doReturn(ctxTransaction).when(contextBroker).newReadWriteTransaction();
-        doReturn(Futures.immediateCheckedFuture(null)).when(ctxTransaction).submit();
-    }
-
-    @Test
-    public void testReadNode() throws Exception {
-        final YangInstanceIdentifier yangId = mock(YangInstanceIdentifier.class);
-        final YangInstanceIdentifier.PathArgument pArg = mock(YangInstanceIdentifier.PathArgument.class);
-        doReturn(pArg).when(yangId).getLastPathArgument();
-        doReturn(Collections.singletonList(pArg)).when(yangId).getPathArguments();
-
-        doReturn(QName.create("namespace", "2012-12-12", "local")).when(pArg).getNodeType();
-        doReturn(id).when(serializer).fromYangInstanceIdentifier(yangId);
-
-        final DataObject dataObject = mock(DataObject.class);
-        doReturn(Optional.of(dataObject)).when(reader).read(same(id), any(ReadContext.class));
-
-        when(serializer.toNormalizedNode(id, dataObject)).thenReturn(entry);
-        final DataContainerChild<?, ?> expectedValue = mock(DataContainerChild.class);
-        doReturn(expectedValue).when(entry).getValue();
-
-        final CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> future = operationalData.read(yangId);
-
-        verify(serializer).fromYangInstanceIdentifier(yangId);
-        verify(reader).read(same(id), any(ReadContext.class));
-        final Optional<NormalizedNode<?, ?>> result = future.get();
-        assertTrue(result.isPresent());
-        assertEquals(expectedValue, result.get());
-    }
-
-    @Test
-    public void testReadNonExistingNode() throws Exception {
-        final YangInstanceIdentifier yangId = mock(YangInstanceIdentifier.class);
-        doReturn(id).when(serializer).fromYangInstanceIdentifier(yangId);
-        doReturn(Optional.absent()).when(reader).read(same(id), any(ReadContext.class));
-
-        final CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> future = operationalData.read(yangId);
-
-        verify(serializer).fromYangInstanceIdentifier(yangId);
-        verify(reader).read(same(id), any(ReadContext.class));
-        final Optional<NormalizedNode<?, ?>> result = future.get();
-        assertFalse(result.isPresent());
-    }
-
-    @Test
-    public void testReadFailed() throws Exception {
-        doThrow(io.fd.honeycomb.v3po.translate.read.ReadFailedException.class).when(reader).readAll(any(ReadContext.class));
-
-        final CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> future =
-                operationalData.read( YangInstanceIdentifier.EMPTY);
-
-        try {
-            future.checkedGet();
-        } catch (ReadFailedException e) {
-            assertTrue(e.getCause() instanceof io.fd.honeycomb.v3po.translate.read.ReadFailedException);
-            return;
-        }
-        fail("ReadFailedException was expected");
-    }
-
-    @Test
-    public void testReadRootWithOneNonListElement() throws Exception {
-        // Prepare data
-        final InstanceIdentifier<VppState> vppStateII = InstanceIdentifier.create(VppState.class);
-        final VppState vppState = mock(VppState.class);
-        Multimap<InstanceIdentifier<?>, DataObject> dataObjects = LinkedListMultimap.create();
-        dataObjects.put(vppStateII, vppState);
-        doReturn(dataObjects).when(reader).readAll(any(ReadContext.class));
-
-        // Init serializer
-        final YangInstanceIdentifier vppYangId = YangInstanceIdentifier.builder().node(VppState.QNAME).build();
-        when(serializer.toYangInstanceIdentifier(vppStateII)).thenReturn(vppYangId);
-        when(serializer.toNormalizedNode(vppStateII, vppState)).thenReturn(entry);
-        final DataContainerChild<?, ?> vppStateContainer = mock(DataContainerChild.class);
-        doReturn(vppStateContainer).when(entry).getValue();
-        doReturn(vppYangId.getLastPathArgument()).when(vppStateContainer).getIdentifier();
-
-        // Read root
-        final CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> future =
-                operationalData.read(YangInstanceIdentifier.EMPTY);
-
-        verify(reader).readAll(any(ReadContext.class));
-        verify(serializer).toYangInstanceIdentifier(vppStateII);
-        verify(serializer).toNormalizedNode(vppStateII, vppState);
-
-        // Check the result is an ContainerNode with only one child
-        final Optional<NormalizedNode<?, ?>> result = future.get();
-        assertTrue(result.isPresent());
-
-        final ContainerNode rootNode = (ContainerNode) result.get();
-        assertEquals(SchemaContext.NAME, rootNode.getIdentifier().getNodeType());
-        assertEquals(vppStateContainer, Iterables.getOnlyElement(rootNode.getValue()));
-    }
-}
\ No newline at end of file
diff --git a/v3po/data-impl/src/test/java/io/fd/honeycomb/v3po/data/impl/WriteTransactionTest.java b/v3po/data-impl/src/test/java/io/fd/honeycomb/v3po/data/impl/WriteTransactionTest.java
deleted file mode 100644
index 9cde27d2b..000000000
--- a/v3po/data-impl/src/test/java/io/fd/honeycomb/v3po/data/impl/WriteTransactionTest.java
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
- * Copyright (c) 2016 Cisco and/or its affiliates.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package io.fd.honeycomb.v3po.data.impl;
-
-import static junit.framework.TestCase.assertTrue;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.fail;
-import static org.mockito.Mockito.doThrow;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.verify;
-import static org.mockito.MockitoAnnotations.initMocks;
-
-import com.google.common.util.concurrent.CheckedFuture;
-import io.fd.honeycomb.v3po.data.DataModification;
-import org.junit.Before;
-import org.junit.Test;
-import org.mockito.Mock;
-import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
-import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataValidationFailedException;
-
-public class WriteTransactionTest {
-
-    @Mock
-    private DataModification configSnapshot;
-    @Mock
-    private YangInstanceIdentifier path;
-    @Mock
-    private NormalizedNode<?,?> data;
-
-    private WriteTransaction writeTx;
-
-    @Before
-    public void setUp() {
-        initMocks(this);
-        writeTx = WriteTransaction.createConfigOnly(configSnapshot);
-    }
-
-    @Test
-    public void testPut() {
-        writeTx.put(LogicalDatastoreType.CONFIGURATION, path, data);
-        verify(configSnapshot).write(path, data);
-    }
-
-    @Test(expected = IllegalArgumentException.class)
-    public void testPutOperational() {
-        writeTx.put(LogicalDatastoreType.OPERATIONAL, path, data);
-        verify(configSnapshot).write(path, data);
-    }
-
-    @Test(expected = IllegalStateException.class)
-    public void testOnFinishedTx() {
-        writeTx.submit();
-        writeTx.put(LogicalDatastoreType.CONFIGURATION, path, data);
-        verify(configSnapshot).write(path, data);
-    }
-
-    @Test
-    public void testMerge() {
-        writeTx.merge(LogicalDatastoreType.CONFIGURATION, path, data);
-        verify(configSnapshot).merge(path, data);
-    }
-
-    @Test
-    public void testCancel() {
-        assertTrue(writeTx.cancel());
-    }
-
-    @Test
-    public void testCancelFinished() {
-        writeTx.submit();
-        assertFalse(writeTx.cancel());
-    }
-
-    @Test
-    public void testDelete() {
-        writeTx.delete(LogicalDatastoreType.CONFIGURATION, path);
-        verify(configSnapshot).delete(path);
-    }
-
-    @Test
-    public void testSubmit() throws Exception {
-        writeTx.submit();
-        verify(configSnapshot).validate();
-        verify(configSnapshot).commit();
-    }
-
-    @Test
-    public void testSubmitFailed() throws Exception {
-        doThrow(mock(DataValidationFailedException.class)).when(configSnapshot).commit();
-        final CheckedFuture<Void, TransactionCommitFailedException> future = writeTx.submit();
-        try {
-            future.get();
-        } catch (Exception e) {
-            assertTrue(e.getCause() instanceof TransactionCommitFailedException);
-            return;
-        }
-        fail("Expected exception to be thrown");
-
-    }
-
-    @Test(expected = UnsupportedOperationException.class)
-    public void testCommit() {
-        writeTx.commit();
-    }
-
-    @Test
-    public void testGetIdentifier() {
-        assertNotNull(writeTx.getIdentifier());
-    }
-}
\ No newline at end of file
diff --git a/v3po/data-impl/src/test/resources/test-diff.yang b/v3po/data-impl/src/test/resources/test-diff.yang
deleted file mode 100644
index 5cccc8718..000000000
--- a/v3po/data-impl/src/test/resources/test-diff.yang
+++ /dev/null
@@ -1,54 +0,0 @@
-module test-diff {
-    yang-version 1;
-    namespace "urn:opendaylight:params:xml:ns:yang:test:diff";
-    prefix "td";
-
-    revision "2015-01-05" {
-        description "Initial revision";
-    }
-
-    container top-container {
-        leaf string {
-            type string;
-        }
-
-        list nested-list {
-            key "name";
-
-            leaf name {
-                type string;
-            }
-
-            leaf text {
-                type string;
-            }
-
-            list deep-list {
-                key "name";
-
-                leaf name {
-                    type string;
-                }
-
-            }
-        }
-    }
-
-    container with-choice {
-
-        choice choice {
-            case case1 {
-                leaf in-case1 {
-                    type string;
-                }
-            }
-
-            case case2 {
-                leaf in-case2 {
-                    type string;
-                }
-            }
-        }
-    }
-
-}