diff options
Diffstat (limited to 'infra/translate-utils/src/main/java')
15 files changed, 120 insertions, 1466 deletions
diff --git a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/AbstractGenericReader.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/AbstractGenericReader.java index 40c78b3c9..b19b72ecf 100644 --- a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/AbstractGenericReader.java +++ b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/AbstractGenericReader.java @@ -56,18 +56,15 @@ public abstract class AbstractGenericReader<D extends DataObject, B extends Buil @Nonnull final ReadContext ctx) throws ReadFailedException { LOG.debug("{}: Reading current: {}", this, id); final B builder = getBuilder(id); - // The empty value could be cached, but no caching is safer since we call overridden getBuilder each time - // and the build could produce something different (even if it shouldn't) - final D emptyValue = builder.build(); LOG.trace("{}: Reading current attributes", this); readCurrentAttributes(id, builder, ctx); // Need to check whether anything was filled in to determine if data is present or not. final D built = builder.build(); - final Optional<D> read = built.equals(emptyValue) - ? Optional.absent() - : Optional.of(built); + final Optional<D> read = isPresent(id, built, ctx) + ? Optional.of(built) + : Optional.absent(); LOG.debug("{}: Current node read successfully. Result: {}", this, read); return read; diff --git a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/BindingBrokerReader.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/BindingBrokerReader.java index b7a38e97f..e59e642c4 100644 --- a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/BindingBrokerReader.java +++ b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/BindingBrokerReader.java @@ -50,6 +50,11 @@ public final class BindingBrokerReader<D extends DataObject, B extends Builder<D this.datastoreType = datastoreType; } + @Override + public boolean isPresent(final InstanceIdentifier<D> id, final D built, final ReadContext ctx) { + throw new UnsupportedOperationException("Not supported"); + } + @Nonnull @Override public Optional<? extends DataObject> read(@Nonnull final InstanceIdentifier<? extends DataObject> id, diff --git a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/DelegatingReader.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/DelegatingReader.java new file mode 100644 index 000000000..513639610 --- /dev/null +++ b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/DelegatingReader.java @@ -0,0 +1,103 @@ +/* + * 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.translate.util.read; + +import com.google.common.base.Optional; +import io.fd.honeycomb.translate.read.ListReader; +import io.fd.honeycomb.translate.read.ReadContext; +import io.fd.honeycomb.translate.read.ReadFailedException; +import io.fd.honeycomb.translate.read.Reader; +import java.util.List; +import javax.annotation.Nonnull; +import org.opendaylight.yangtools.concepts.Builder; +import org.opendaylight.yangtools.yang.binding.DataObject; +import org.opendaylight.yangtools.yang.binding.Identifiable; +import org.opendaylight.yangtools.yang.binding.Identifier; +import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; + +/** + * A trait of a delegating reader. Delegates all the calls to its delegate. + */ +public interface DelegatingReader<D extends DataObject, B extends Builder<D>> extends Reader<D, B> { + + Reader<D, B> getDelegate(); + + @Nonnull + default Optional<? extends DataObject> read(@Nonnull final InstanceIdentifier<? extends DataObject> id, + @Nonnull final ReadContext ctx) throws ReadFailedException { + return getDelegate().read(id, ctx); + } + + default void readCurrentAttributes(@Nonnull final InstanceIdentifier<D> id, + @Nonnull final B builder, + @Nonnull final ReadContext ctx) throws ReadFailedException { + getDelegate().readCurrentAttributes(id, builder, ctx); + } + + @Nonnull + default B getBuilder(final InstanceIdentifier<D> id) { + return getDelegate().getBuilder(id); + } + + default void merge(@Nonnull final Builder<? extends DataObject> parentBuilder, + @Nonnull final D readValue) { + getDelegate().merge(parentBuilder, readValue); + } + + @Override + default boolean isPresent(InstanceIdentifier<D> id, D built, final ReadContext ctx) throws ReadFailedException { + return getDelegate().isPresent(id, built, ctx); + } + + @Nonnull + default InstanceIdentifier<D> getManagedDataObjectType() { + return getDelegate().getManagedDataObjectType(); + } + + /** + * ListReader specific delegating trait. + */ + interface DelegatingListReader<D extends DataObject & Identifiable<K>, K extends Identifier<D>, B extends Builder<D>> + extends DelegatingReader<D, B>, ListReader<D, K, B> { + + ListReader<D, K, B> getDelegate(); + + @Override + default List<K> getAllIds(@Nonnull InstanceIdentifier<D> id, @Nonnull ReadContext ctx) + throws ReadFailedException { + return getDelegate().getAllIds(id, ctx); + } + + @Nonnull + @Override + default List<D> readList(@Nonnull final InstanceIdentifier<D> id, @Nonnull final ReadContext ctx) + throws ReadFailedException { + return getDelegate().readList(id, ctx); + } + + @Override + default void merge(@Nonnull final Builder<? extends DataObject> builder, + @Nonnull final List<D> readData) { + getDelegate().merge(builder, readData); + } + + @Override + default void merge(@Nonnull final Builder<? extends DataObject> parentBuilder, @Nonnull final D readValue) { + getDelegate().merge(parentBuilder, readValue); + } + } +} diff --git a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/KeepaliveReaderWrapper.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/KeepaliveReaderWrapper.java index 5ab9bc59e..9a695a53c 100644 --- a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/KeepaliveReaderWrapper.java +++ b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/KeepaliveReaderWrapper.java @@ -18,11 +18,10 @@ package io.fd.honeycomb.translate.util.read; import com.google.common.base.Optional; import com.google.common.base.Preconditions; -import io.fd.honeycomb.translate.read.ReadContext; -import io.fd.honeycomb.translate.read.Reader; import io.fd.honeycomb.translate.MappingContext; import io.fd.honeycomb.translate.ModificationCache; -import io.fd.honeycomb.translate.read.ReadFailedException; +import io.fd.honeycomb.translate.read.ReadContext; +import io.fd.honeycomb.translate.read.Reader; import java.io.Closeable; import java.util.concurrent.ScheduledExecutorService; import java.util.concurrent.ScheduledFuture; @@ -40,7 +39,7 @@ import org.slf4j.LoggerFactory; * In case a specific error occurs, Keep-alive failure listener gets notified. */ public final class KeepaliveReaderWrapper<D extends DataObject, B extends Builder<D>> - implements Reader<D, B>, Runnable, Closeable { + implements DelegatingReader<D, B>,Runnable, Closeable { private static final Logger LOG = LoggerFactory.getLogger(KeepaliveReaderWrapper.class); @@ -73,34 +72,6 @@ public final class KeepaliveReaderWrapper<D extends DataObject, B extends Builde scheduledFuture = executor.scheduleWithFixedDelay(this, delayInSeconds, delayInSeconds, TimeUnit.SECONDS); } - @Nonnull - public Optional<? extends DataObject> read(@Nonnull final InstanceIdentifier id, - @Nonnull final ReadContext ctx) throws ReadFailedException { - return delegate.read(id, ctx); - } - - public void readCurrentAttributes(@Nonnull final InstanceIdentifier<D> id, - @Nonnull final B builder, - @Nonnull final ReadContext ctx) throws ReadFailedException { - delegate.readCurrentAttributes(id, builder, ctx); - } - - @Nonnull - public B getBuilder(final InstanceIdentifier<D> id) { - return delegate.getBuilder(id); - } - - public void merge(@Nonnull final Builder<? extends DataObject> parentBuilder, - @Nonnull final D readValue) { - delegate.merge(parentBuilder, readValue); - } - - @Nonnull - @Override - public InstanceIdentifier<D> getManagedDataObjectType() { - return delegate.getManagedDataObjectType(); - } - @Override public void run() { LOG.trace("Invoking keepalive"); @@ -123,6 +94,11 @@ public final class KeepaliveReaderWrapper<D extends DataObject, B extends Builde scheduledFuture.cancel(false); } + @Override + public Reader<D, B> getDelegate() { + return delegate; + } + /** * Listener that gets called whenever keepalive fails as expected. */ diff --git a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/ReflexiveReader.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/ReflexiveReader.java deleted file mode 100644 index 2aa35514e..000000000 --- a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/ReflexiveReader.java +++ /dev/null @@ -1,57 +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.translate.util.read; - -import io.fd.honeycomb.translate.read.ReadContext; -import io.fd.honeycomb.translate.read.ReadFailedException; -import javax.annotation.Nonnull; -import org.opendaylight.yangtools.concepts.Builder; -import org.opendaylight.yangtools.yang.binding.DataObject; -import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; - -/** - * Reader that performs no read operation on its own, just fills in the hierarchy. - * <p/> - * Might be slow due to reflection ! - */ -public class ReflexiveReader<C extends DataObject, B extends Builder<C>> extends AbstractGenericReader<C, B> { - - private final ReflexiveReaderCustomizer<C, B> customizer; - - public ReflexiveReader(final InstanceIdentifier<C> identifier, final Class<B> builderClass) { - super(identifier); - this.customizer = new ReflexiveReaderCustomizer<>(identifier.getTargetType(), builderClass); - } - - @Override - public void readCurrentAttributes(@Nonnull final InstanceIdentifier<C> id, @Nonnull final B builder, - @Nonnull final ReadContext ctx) - throws ReadFailedException { - customizer.readCurrentAttributes(id, builder, ctx); - } - - @Nonnull - @Override - public B getBuilder(final InstanceIdentifier<C> id) { - return customizer.getBuilder(id); - } - - @Override - public void merge(@Nonnull final Builder<? extends DataObject> parentBuilder, @Nonnull final C readValue) { - customizer.merge(parentBuilder, readValue); - } -} diff --git a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/ReflexiveReaderCustomizer.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/ReflexiveReaderCustomizer.java index 18e6285f3..087873306 100644 --- a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/ReflexiveReaderCustomizer.java +++ b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/ReflexiveReaderCustomizer.java @@ -33,7 +33,7 @@ import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; /** * Might be slow. */ -class ReflexiveReaderCustomizer<C extends DataObject, B extends Builder<C>> extends NoopReaderCustomizer<C, B> { +public class ReflexiveReaderCustomizer<C extends DataObject, B extends Builder<C>> extends NoopReaderCustomizer<C, B> { private final Class<C> typeClass; private final Class<B> builderClass; diff --git a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/registry/CompositeReader.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/registry/CompositeReader.java deleted file mode 100644 index b52fd09ec..000000000 --- a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/registry/CompositeReader.java +++ /dev/null @@ -1,241 +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.translate.util.read.registry; - -import static com.google.common.base.Preconditions.checkArgument; - -import com.google.common.annotations.VisibleForTesting; -import com.google.common.base.Optional; -import com.google.common.collect.ImmutableMap; -import com.google.common.collect.Iterables; -import io.fd.honeycomb.translate.read.InitFailedException; -import io.fd.honeycomb.translate.read.InitListReader; -import io.fd.honeycomb.translate.read.Initializer; -import io.fd.honeycomb.translate.read.ListReader; -import io.fd.honeycomb.translate.read.ReadContext; -import io.fd.honeycomb.translate.read.ReadFailedException; -import io.fd.honeycomb.translate.read.Reader; -import io.fd.honeycomb.translate.util.RWUtils; -import io.fd.honeycomb.translate.util.read.AbstractGenericReader; -import java.util.ArrayList; -import java.util.Collections; -import java.util.List; -import javax.annotation.Nonnull; -import org.opendaylight.controller.md.sal.binding.api.DataBroker; -import org.opendaylight.yangtools.concepts.Builder; -import org.opendaylight.yangtools.yang.binding.DataObject; -import org.opendaylight.yangtools.yang.binding.Identifiable; -import org.opendaylight.yangtools.yang.binding.Identifier; -import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; - -class CompositeReader<D extends DataObject, B extends Builder<D>> - extends AbstractGenericReader<D, B> - implements Initializer<D> { - - private static final Logger LOG = LoggerFactory.getLogger(CompositeReader.class); - - private final Reader<D, B> delegate; - private final ImmutableMap<Class<?>, Reader<? extends DataObject, ? extends Builder<?>>> childReaders; - - private CompositeReader(final Reader<D, B> reader, - final ImmutableMap<Class<?>, Reader<? extends DataObject, ? extends Builder<?>>> childReaders) { - super(reader.getManagedDataObjectType()); - this.delegate = reader; - this.childReaders = childReaders; - } - - @VisibleForTesting - ImmutableMap<Class<?>, Reader<? extends DataObject, ? extends Builder<?>>> getChildReaders() { - return childReaders; - } - - @SuppressWarnings("unchecked") - public static <D extends DataObject> InstanceIdentifier<D> appendTypeToId( - final InstanceIdentifier<? extends DataObject> parentId, final InstanceIdentifier<D> type) { - final InstanceIdentifier.PathArgument t = new InstanceIdentifier.Item<>(type.getTargetType()); - return (InstanceIdentifier<D>) InstanceIdentifier.create(Iterables.concat( - parentId.getPathArguments(), Collections.singleton(t))); - } - - @Nonnull - @Override - public Optional<? extends DataObject> read(@Nonnull final InstanceIdentifier<? extends DataObject> id, - @Nonnull final ReadContext ctx) throws ReadFailedException { - if (shouldReadCurrent(id)) { - LOG.trace("{}: Reading current: {}", this, id); - return readCurrent((InstanceIdentifier<D>) id, ctx); - } else if (shouldDelegateToChild(id)) { - LOG.trace("{}: Reading child: {}", this, id); - return readSubtree(id, ctx); - } else { - // Fallback - LOG.trace("{}: Delegating read: {}", this, id); - return delegate.read(id, ctx); - } - } - - private boolean shouldReadCurrent(@Nonnull final InstanceIdentifier<? extends DataObject> id) { - return id.getTargetType().equals(getManagedDataObjectType().getTargetType()); - } - - private boolean shouldDelegateToChild(@Nonnull final InstanceIdentifier<? extends DataObject> id) { - return childReaders.containsKey(RWUtils.getNextId(id, getManagedDataObjectType()).getType()); - } - - private Optional<? extends DataObject> readSubtree(final InstanceIdentifier<? extends DataObject> id, - final ReadContext ctx) throws ReadFailedException { - final InstanceIdentifier.PathArgument nextId = RWUtils.getNextId(id, getManagedDataObjectType()); - final Reader<?, ? extends Builder<?>> nextReader = childReaders.get(nextId.getType()); - checkArgument(nextReader != null, "Unable to read: %s. No delegate present, available readers at next level: %s", - id, childReaders.keySet()); - return nextReader.read(id, ctx); - } - - @SuppressWarnings("unchecked") - private void readChildren(final InstanceIdentifier<D> id, @Nonnull final ReadContext ctx, final B builder) - throws ReadFailedException { - LOG.debug("{}: Reading children: {}", this, childReaders.keySet()); - for (Reader child : childReaders.values()) { - final InstanceIdentifier childId = appendTypeToId(id, child.getManagedDataObjectType()); - - LOG.debug("{}: Reading child from: {}", this, child); - if (child instanceof ListReader) { - final List<? extends DataObject> list = ((ListReader) child).readList(childId, ctx); - // Dont set empty lists - if (!list.isEmpty()) { - ((ListReader) child).merge(builder, list); - } - } else { - final Optional<? extends DataObject> read = child.read(childId, ctx); - if (read.isPresent()) { - child.merge(builder, read.get()); - } - } - } - } - - @Override - public void readCurrentAttributes(@Nonnull final InstanceIdentifier<D> id, @Nonnull final B builder, - @Nonnull final ReadContext ctx) - throws ReadFailedException { - delegate.readCurrentAttributes(id, builder, ctx); - readChildren(id, ctx, builder); - } - - @Nonnull - @Override - public B getBuilder(final InstanceIdentifier<D> id) { - return delegate.getBuilder(id); - } - - @Override - public void merge(@Nonnull final Builder<? extends DataObject> parentBuilder, @Nonnull final D readValue) { - delegate.merge(parentBuilder, readValue); - } - - /** - * Wrap a Reader as a Composite Reader. - */ - static <D extends DataObject, B extends Builder<D>> Reader<D, B> createForReader( - @Nonnull final Reader<D, B> reader, - @Nonnull final ImmutableMap<Class<?>, Reader<?, ? extends Builder<?>>> childReaders) { - - return (reader instanceof ListReader) - ? new CompositeListReader<>((ListReader) reader, childReaders) - : new CompositeReader<>(reader, childReaders); - } - - @SuppressWarnings("unchecked") - @Override - public void init(final DataBroker broker, final InstanceIdentifier<D> id, final ReadContext ctx) throws InitFailedException { - if (delegate instanceof Initializer) { - LOG.trace("{}: Initializing current: {}", this, id); - ((Initializer<D>) delegate).init(broker, id, ctx); - } - - for (Reader child : childReaders.values()) { - final InstanceIdentifier childId = appendTypeToId(id, child.getManagedDataObjectType()); - - if (child instanceof Initializer) { - LOG.trace("{}: Initializing child: {}", this, childId); - ((Initializer) child).init(broker, childId, ctx); - } - } - } - - private static class CompositeListReader<D extends DataObject & Identifiable<K>, B extends Builder<D>, K extends Identifier<D>> - extends CompositeReader<D, B> - implements InitListReader<D, K, B> { - - private final ListReader<D, K, B> delegate; - - private CompositeListReader(final ListReader<D, K, B> reader, - final ImmutableMap<Class<?>, Reader<? extends DataObject, ? extends Builder<?>>> childReaders) { - super(reader, childReaders); - this.delegate = reader; - } - - @Nonnull - @Override - public List<D> readList(@Nonnull final InstanceIdentifier<D> id, @Nonnull final ReadContext ctx) - throws ReadFailedException { - LOG.trace("{}: Reading all list entries", this); - final List<K> allIds = delegate.getAllIds(id, ctx); - LOG.debug("{}: Reading list entries for: {}", this, allIds); - - // Override read list in order to perform readCurrent + readChildren here - final ArrayList<D> allEntries = new ArrayList<>(allIds.size()); - for (K key : allIds) { - final InstanceIdentifier.IdentifiableItem<D, K> currentBdItem = RWUtils.getCurrentIdItem(id, key); - final InstanceIdentifier<D> keyedId = RWUtils.replaceLastInId(id, currentBdItem); - final Optional<D> read = readCurrent(keyedId, ctx); - if (read.isPresent()) { - final DataObject singleItem = read.get(); - checkArgument(getManagedDataObjectType().getTargetType().isAssignableFrom(singleItem.getClass())); - allEntries.add(getManagedDataObjectType().getTargetType().cast(singleItem)); - } - } - return allEntries; - } - - @Override - public void init(final DataBroker broker, final InstanceIdentifier<D> id, final ReadContext ctx) - throws InitFailedException { - try { - final List<K> allIds = delegate.getAllIds(id, ctx); - for (K key : allIds) { - super.init(broker, RWUtils.replaceLastInId(id, RWUtils.getCurrentIdItem(id, key)), ctx); - } - } catch (ReadFailedException e) { - throw new InitFailedException(id, e); - } - } - - @Override - public void merge(@Nonnull final Builder<? extends DataObject> builder, @Nonnull final List<D> readData) { - delegate.merge(builder, readData); - } - - @Override - public List<K> getAllIds(@Nonnull final InstanceIdentifier<D> id, - @Nonnull final ReadContext ctx) throws ReadFailedException { - return delegate.getAllIds(id, ctx); - } - } -} diff --git a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/registry/CompositeReaderRegistry.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/registry/CompositeReaderRegistry.java deleted file mode 100644 index 9505a7730..000000000 --- a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/registry/CompositeReaderRegistry.java +++ /dev/null @@ -1,131 +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.translate.util.read.registry; - -import static com.google.common.base.Preconditions.checkNotNull; - -import com.google.common.annotations.VisibleForTesting; -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 io.fd.honeycomb.translate.read.InitFailedException; -import io.fd.honeycomb.translate.read.Initializer; -import io.fd.honeycomb.translate.read.ListReader; -import io.fd.honeycomb.translate.read.ReadContext; -import io.fd.honeycomb.translate.read.ReadFailedException; -import io.fd.honeycomb.translate.read.Reader; -import io.fd.honeycomb.translate.read.registry.ReaderRegistry; -import io.fd.honeycomb.translate.util.RWUtils; -import java.util.Collections; -import java.util.List; -import java.util.Map; -import java.util.stream.Collectors; -import javax.annotation.Nonnull; -import org.opendaylight.controller.md.sal.binding.api.DataBroker; -import org.opendaylight.yangtools.concepts.Builder; -import org.opendaylight.yangtools.yang.binding.DataObject; -import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; - -/** - * Simple reader registry able to perform and aggregated read (ROOT read) on top of all provided readers. Also able to - * delegate a specific read to one of the delegate readers. - * <p/> - * This could serve as a utility to hold & hide all available readers in upper layers. - */ -public final class CompositeReaderRegistry implements ReaderRegistry { - - private static final Logger LOG = LoggerFactory.getLogger(CompositeReaderRegistry.class); - - private final Map<Class<? extends DataObject>, Reader<? extends DataObject, ? extends Builder<?>>> rootReaders; - - /** - * Create new {@link CompositeReaderRegistry}. - * - * @param rootReaders List of delegate readers - */ - public CompositeReaderRegistry(@Nonnull final List<Reader<? extends DataObject, ? extends Builder<?>>> rootReaders) { - this.rootReaders = RWUtils.uniqueLinkedIndex(checkNotNull(rootReaders), RWUtils.MANAGER_CLASS_FUNCTION); - } - - @VisibleForTesting - Map<Class<? extends DataObject>, Reader<? extends DataObject, ? extends Builder<?>>> getRootReaders() { - return rootReaders; - } - - @Override - @Nonnull - public Multimap<InstanceIdentifier<? extends DataObject>, ? extends DataObject> readAll( - @Nonnull final ReadContext ctx) throws ReadFailedException { - - LOG.debug("Reading from all delegates: {}", this); - LOG.trace("Reading from all delegates: {}", rootReaders.values()); - - final Multimap<InstanceIdentifier<? extends DataObject>, DataObject> objects = LinkedListMultimap.create(); - for (Reader<? extends DataObject, ? extends Builder<?>> rootReader : rootReaders.values()) { - LOG.debug("Reading from delegate: {}", rootReader); - - if (rootReader instanceof ListReader) { - final List<? extends DataObject> listEntries = - ((ListReader) rootReader).readList(rootReader.getManagedDataObjectType(), ctx); - if (!listEntries.isEmpty()) { - objects.putAll(rootReader.getManagedDataObjectType(), listEntries); - } - } else { - final Optional<? extends DataObject> read = rootReader.read(rootReader.getManagedDataObjectType(), ctx); - if (read.isPresent()) { - objects.putAll(rootReader.getManagedDataObjectType(), Collections.singletonList(read.get())); - } - } - } - - return objects; - } - - - @Override - public void initAll(@Nonnull final DataBroker broker, @Nonnull final ReadContext ctx) throws InitFailedException { - for (Reader<? extends DataObject, ? extends Builder<?>> rootReader : rootReaders.values()) { - if (rootReader instanceof Initializer<?>) { - ((Initializer) rootReader).init(broker, rootReader.getManagedDataObjectType(), ctx); - } - } - } - - @Nonnull - @Override - public Optional<? extends DataObject> read(@Nonnull final InstanceIdentifier<? extends DataObject> id, - @Nonnull final ReadContext ctx) - throws ReadFailedException { - final InstanceIdentifier.PathArgument first = checkNotNull( - Iterables.getFirst(id.getPathArguments(), null), "Empty id"); - final Reader<? extends DataObject, ? extends Builder<?>> reader = rootReaders.get(first.getType()); - checkNotNull(reader, - "Unable to read %s. Missing reader. Current readers for: %s", id, rootReaders.keySet()); - LOG.debug("Reading from delegate: {}", reader); - return reader.read(id, ctx); - } - - @Override - public String toString() { - return getClass().getSimpleName() - + rootReaders.keySet().stream().map(Class::getSimpleName).collect(Collectors.toList()); - } - -} diff --git a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/registry/CompositeReaderRegistryBuilder.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/registry/CompositeReaderRegistryBuilder.java deleted file mode 100644 index da9bbe934..000000000 --- a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/registry/CompositeReaderRegistryBuilder.java +++ /dev/null @@ -1,114 +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.translate.util.read.registry; - -import com.google.common.collect.ImmutableMap; -import io.fd.honeycomb.translate.read.InitReader; -import io.fd.honeycomb.translate.read.Reader; -import io.fd.honeycomb.translate.read.registry.ModifiableReaderRegistryBuilder; -import io.fd.honeycomb.translate.read.registry.ReaderRegistry; -import io.fd.honeycomb.translate.read.registry.ReaderRegistryBuilder; -import io.fd.honeycomb.translate.util.AbstractSubtreeManagerRegistryBuilderBuilder; -import io.fd.honeycomb.translate.util.read.ReflexiveReader; -import java.util.ArrayList; -import java.util.List; -import java.util.Set; -import java.util.stream.Collectors; -import javax.annotation.Nonnull; -import javax.annotation.concurrent.NotThreadSafe; -import org.opendaylight.yangtools.concepts.Builder; -import org.opendaylight.yangtools.yang.binding.DataObject; -import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; - -@NotThreadSafe -public final class CompositeReaderRegistryBuilder - extends AbstractSubtreeManagerRegistryBuilderBuilder<Reader<? extends DataObject, ? extends Builder<?>>, ReaderRegistry> - implements ModifiableReaderRegistryBuilder, ReaderRegistryBuilder { - - private static final Logger LOG = LoggerFactory.getLogger(CompositeReaderRegistryBuilder.class); - - @Override - protected Reader<? extends DataObject, ? extends Builder<?>> getSubtreeHandler(@Nonnull final Set<InstanceIdentifier<?>> handledChildren, - @Nonnull final Reader<? extends DataObject, ? extends Builder<?>> reader) { - return reader instanceof InitReader - ? InitSubtreeReader.createForReader(handledChildren, reader) - : SubtreeReader.createForReader(handledChildren, reader); - } - - @Override - public <D extends DataObject> void addStructuralReader(@Nonnull InstanceIdentifier<D> id, - @Nonnull Class<? extends Builder<D>> builderType) { - add(new ReflexiveReader<>(id, builderType)); - } - - - - /** - * Create {@link CompositeReaderRegistry} with Readers ordered according to submitted relationships. - * <p/> - * Note: The ordering only applies between nodes on the same level, inter-level and inter-subtree relationships are - * ignored. - */ - @Override - public ReaderRegistry build() { - ImmutableMap<InstanceIdentifier<?>, Reader<? extends DataObject, ? extends Builder<?>>> mappedReaders = - getMappedHandlers(); - LOG.debug("Building Reader registry with Readers: {}", - mappedReaders.keySet().stream() - .map(InstanceIdentifier::getTargetType) - .map(Class::getSimpleName) - .collect(Collectors.joining(", "))); - - LOG.trace("Building Reader registry with Readers: {}", mappedReaders); - final List<InstanceIdentifier<?>> readerOrder = new ArrayList<>(mappedReaders.keySet()); - - // Wrap readers into composite readers recursively, collect roots and create registry - final TypeHierarchy typeHierarchy = TypeHierarchy.create(mappedReaders.keySet()); - final List<Reader<? extends DataObject, ? extends Builder<?>>> orderedRootReaders = - typeHierarchy.getRoots().stream() - .map(rootId -> toCompositeReader(rootId, mappedReaders, typeHierarchy)) - .collect(Collectors.toList()); - - // We are violating the ordering from mappedReaders, since we are forming a composite structure - // but at least order root writers - orderedRootReaders.sort((reader1, reader2) -> readerOrder.indexOf(reader1.getManagedDataObjectType()) - - readerOrder.indexOf(reader2.getManagedDataObjectType())); - - return new CompositeReaderRegistry(orderedRootReaders); - } - - private Reader<? extends DataObject, ? extends Builder<?>> toCompositeReader( - final InstanceIdentifier<?> instanceIdentifier, - final ImmutableMap<InstanceIdentifier<?>, Reader<? extends DataObject, ? extends Builder<?>>> mappedReaders, - final TypeHierarchy typeHierarchy) { - - // Order child readers according to the mappedReadersCollection - final ImmutableMap.Builder<Class<?>, Reader<?, ? extends Builder<?>>> childReadersMapB = ImmutableMap.builder(); - for (InstanceIdentifier<?> childId : mappedReaders.keySet()) { - if (typeHierarchy.getDirectChildren(instanceIdentifier).contains(childId)) { - childReadersMapB.put(childId.getTargetType(), toCompositeReader(childId, mappedReaders, typeHierarchy)); - } - } - - final ImmutableMap<Class<?>, Reader<?, ? extends Builder<?>>> childReadersMap = childReadersMapB.build(); - return childReadersMap.isEmpty() - ? mappedReaders.get(instanceIdentifier) - : CompositeReader.createForReader(mappedReaders.get(instanceIdentifier), childReadersMap); - } -} diff --git a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/registry/InitSubtreeReader.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/registry/InitSubtreeReader.java deleted file mode 100644 index 4edc38f9d..000000000 --- a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/registry/InitSubtreeReader.java +++ /dev/null @@ -1,72 +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.translate.util.read.registry; - -import io.fd.honeycomb.translate.read.InitFailedException; -import io.fd.honeycomb.translate.read.InitListReader; -import io.fd.honeycomb.translate.read.InitReader; -import io.fd.honeycomb.translate.read.ListReader; -import io.fd.honeycomb.translate.read.ReadContext; -import io.fd.honeycomb.translate.read.Reader; -import java.util.Set; -import javax.annotation.Nonnull; -import org.opendaylight.controller.md.sal.binding.api.DataBroker; -import org.opendaylight.yangtools.concepts.Builder; -import org.opendaylight.yangtools.yang.binding.DataObject; -import org.opendaylight.yangtools.yang.binding.Identifiable; -import org.opendaylight.yangtools.yang.binding.Identifier; -import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; - -class InitSubtreeReader<O extends DataObject, B extends Builder<O>> - extends SubtreeReader<O, B> - implements InitReader<O, B> { - - private InitSubtreeReader(final InitReader<O, B> delegate, - final Set<InstanceIdentifier<?>> handledTypes) { - super(delegate, handledTypes); - } - - @Override - public void init(final DataBroker broker, final InstanceIdentifier<O> id, final ReadContext ctx) throws InitFailedException { - ((InitReader<O, B>) delegate).init(broker, id, ctx); - } - - /** - * Wrap a Reader as an initializing subtree Reader. - */ - static <D extends DataObject, B extends Builder<D>> Reader<D, B> createForReader(@Nonnull final Set<InstanceIdentifier<?>> handledChildren, - @Nonnull final Reader<D, B> reader) { - return (reader instanceof ListReader) - ? new InitSubtreeListReader<>((InitListReader) reader, handledChildren) - : new InitSubtreeReader<>(((InitReader<D, B>) reader), handledChildren); - } - - private static class InitSubtreeListReader<D extends DataObject & Identifiable<K>, B extends Builder<D>, K extends Identifier<D>> - extends SubtreeListReader<D, B, K> - implements InitListReader<D, K, B> { - - InitSubtreeListReader(final InitListReader<D, K, B> delegate, - final Set<InstanceIdentifier<?>> handledTypes) { - super(delegate, handledTypes); - } - - @Override - public void init(final DataBroker broker, final InstanceIdentifier<D> id, final ReadContext ctx) throws InitFailedException { - ((InitListReader<D, K, B>) delegate).init(broker, id, ctx); - } - } -} diff --git a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/registry/SubtreeReader.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/registry/SubtreeReader.java deleted file mode 100644 index 3bc76b19a..000000000 --- a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/registry/SubtreeReader.java +++ /dev/null @@ -1,241 +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.translate.util.read.registry; - -import static com.google.common.base.Preconditions.checkArgument; - -import com.google.common.base.Optional; -import com.google.common.collect.Iterables; -import io.fd.honeycomb.translate.read.ListReader; -import io.fd.honeycomb.translate.read.ReadContext; -import io.fd.honeycomb.translate.read.ReadFailedException; -import io.fd.honeycomb.translate.read.Reader; -import io.fd.honeycomb.translate.util.RWUtils; -import io.fd.honeycomb.translate.util.ReflectionUtils; -import java.lang.reflect.InvocationTargetException; -import java.lang.reflect.Method; -import java.util.Collections; -import java.util.HashSet; -import java.util.List; -import java.util.Set; -import javax.annotation.Nonnull; -import org.opendaylight.yangtools.concepts.Builder; -import org.opendaylight.yangtools.yang.binding.DataObject; -import org.opendaylight.yangtools.yang.binding.Identifiable; -import org.opendaylight.yangtools.yang.binding.Identifier; -import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; - -/** - * Simple Reader delegate for subtree Readers (Readers handling also children nodes) providing a list of all the - * children nodes being handled. - */ -class SubtreeReader<D extends DataObject, B extends Builder<D>> implements Reader<D, B> { - - private static final Logger LOG = LoggerFactory.getLogger(SubtreeReader.class); - - protected final Reader<D, B> delegate; - private final Set<InstanceIdentifier<?>> handledChildTypes = new HashSet<>(); - - SubtreeReader(final Reader<D, B> delegate, Set<InstanceIdentifier<?>> handledTypes) { - this.delegate = delegate; - for (InstanceIdentifier<?> handledType : handledTypes) { - // Iid has to start with Reader's handled root type - checkArgument(delegate.getManagedDataObjectType().getTargetType().equals( - handledType.getPathArguments().iterator().next().getType()), - "Handled node from subtree has to be identified by an instance identifier starting from: %s." - + "Instance identifier was: %s", getManagedDataObjectType().getTargetType(), handledType); - checkArgument(Iterables.size(handledType.getPathArguments()) > 1, - "Handled node from subtree identifier too short: %s", handledType); - handledChildTypes.add(InstanceIdentifier.create(Iterables.concat( - getManagedDataObjectType().getPathArguments(), Iterables.skip(handledType.getPathArguments(), 1)))); - } - } - - /** - * Return set of types also handled by this Reader. All of the types are children of the type managed by this Reader - * excluding the type of this Reader. - */ - Set<InstanceIdentifier<?>> getHandledChildTypes() { - return handledChildTypes; - } - - @Override - @Nonnull - public Optional<? extends DataObject> read( - @Nonnull final InstanceIdentifier<? extends DataObject> id, - @Nonnull final ReadContext ctx) throws ReadFailedException { - final InstanceIdentifier<?> wildcarded = RWUtils.makeIidWildcarded(id); - - // Reading entire subtree and filtering if is current reader responsible - if (getHandledChildTypes().contains(wildcarded)) { - LOG.debug("{}: Subtree node managed by this writer requested: {}. Reading current and filtering", this, id); - // If there's no dedicated reader, use read current - final InstanceIdentifier<D> currentId = RWUtils.cutId(id, getManagedDataObjectType()); - final Optional<? extends DataObject> current = delegate.read(currentId, ctx); - // then perform post-reading filtering (return only requested sub-node) - final Optional<? extends DataObject> readSubtree = current.isPresent() - ? filterSubtree(current.get(), id, getManagedDataObjectType().getTargetType()) - : current; - - LOG.debug("{}: Subtree: {} read successfully. Result: {}", this, id, readSubtree); - return readSubtree; - - // If child that's handled here is not requested, then delegate should be able to handle the read - } else { - return delegate.read(id, ctx); - } - } - - @Override - public void readCurrentAttributes(@Nonnull final InstanceIdentifier<D> id, @Nonnull final B builder, - @Nonnull final ReadContext ctx) - throws ReadFailedException { - delegate.readCurrentAttributes(id, builder, ctx); - } - - @Nonnull - @Override - public B getBuilder(final InstanceIdentifier<D> id) { - return delegate.getBuilder(id); - } - - @Override - public void merge(@Nonnull final Builder<? extends DataObject> parentBuilder, @Nonnull final D readValue) { - delegate.merge(parentBuilder, readValue); - } - - @Nonnull - private static Optional<? extends DataObject> filterSubtree(@Nonnull final DataObject parent, - @Nonnull final InstanceIdentifier<? extends DataObject> absolutPath, - @Nonnull final Class<?> managedType) { - final InstanceIdentifier.PathArgument nextId = - RWUtils.getNextId(absolutPath, InstanceIdentifier.create(parent.getClass())); - - final Optional<? extends DataObject> nextParent = findNextParent(parent, nextId, managedType); - - if (Iterables.getLast(absolutPath.getPathArguments()).equals(nextId)) { - return nextParent; // we found the dataObject identified by absolutePath - } else if (nextParent.isPresent()) { - return filterSubtree(nextParent.get(), absolutPath, nextId.getType()); - } else { - return nextParent; // we can't go further, return Optional.absent() - } - } - - private static Optional<? extends DataObject> findNextParent(@Nonnull final DataObject parent, - @Nonnull final InstanceIdentifier.PathArgument nextId, - @Nonnull final Class<?> managedType) { - Optional<Method> method = ReflectionUtils.findMethodReflex(managedType, "get", - Collections.emptyList(), nextId.getType()); - - if (method.isPresent()) { - return Optional.fromNullable(filterSingle(parent, nextId, method.get())); - } else { - // List child nodes - method = ReflectionUtils.findMethodReflex(managedType, - "get" + nextId.getType().getSimpleName(), Collections.emptyList(), List.class); - - if (method.isPresent()) { - return filterList(parent, nextId, method.get()); - } else { - throw new IllegalStateException( - "Unable to filter " + nextId + " from " + parent + " getters not found using reflexion"); - } - } - } - - @SuppressWarnings("unchecked") - private static Optional<? extends DataObject> filterList(final DataObject parent, - final InstanceIdentifier.PathArgument nextId, - final Method method) { - final List<? extends DataObject> invoke = (List<? extends DataObject>) invoke(method, nextId, parent); - - checkArgument(nextId instanceof InstanceIdentifier.IdentifiableItem<?, ?>, - "Unable to perform wildcarded read for %s", nextId); - final Identifier key = ((InstanceIdentifier.IdentifiableItem) nextId).getKey(); - - final Method keyGetter = ReflectionUtils.findMethodReflex(nextId.getType(), "get", - Collections.emptyList(), key.getClass()).get(); - - return Optional.fromNullable(invoke.stream() - .filter(item -> key.equals(invoke(keyGetter, nextId, item))) - .findFirst().orElse(null)); - } - - private static DataObject filterSingle(final DataObject parent, - final InstanceIdentifier.PathArgument nextId, final Method method) { - return nextId.getType().cast(invoke(method, nextId, parent)); - } - - private static Object invoke(final Method method, - final InstanceIdentifier.PathArgument nextId, final DataObject parent) { - try { - return method.invoke(parent); - } catch (IllegalAccessException | InvocationTargetException e) { - throw new IllegalArgumentException("Unable to get " + nextId + " from " + parent, e); - } - } - - @Override - @Nonnull - public InstanceIdentifier<D> getManagedDataObjectType() { - return delegate.getManagedDataObjectType(); - } - - /** - * Wrap a Reader as a subtree Reader. - */ - static <D extends DataObject, B extends Builder<D>> Reader<D, B> createForReader(@Nonnull final Set<InstanceIdentifier<?>> handledChildren, - @Nonnull final Reader<D, B> reader) { - return (reader instanceof ListReader) - ? new SubtreeListReader<>((ListReader) reader, handledChildren) - : new SubtreeReader<>(reader, handledChildren); - } - - static class SubtreeListReader<D extends DataObject & Identifiable<K>, B extends Builder<D>, K extends Identifier<D>> - extends SubtreeReader<D, B> implements ListReader<D, K, B> { - - final ListReader<D, K, B> delegate; - - SubtreeListReader(final ListReader<D, K, B> delegate, - final Set<InstanceIdentifier<?>> handledTypes) { - super(delegate, handledTypes); - this.delegate = delegate; - } - - @Nonnull - @Override - public List<D> readList(@Nonnull final InstanceIdentifier<D> id, @Nonnull final ReadContext ctx) - throws ReadFailedException { - return delegate.readList(id, ctx); - } - - @Override - public void merge(@Nonnull final Builder<? extends DataObject> builder, @Nonnull final List<D> readData) { - delegate.merge(builder, readData); - } - - @Override - public List<K> getAllIds(@Nonnull final InstanceIdentifier<D> id, - @Nonnull final ReadContext ctx) throws ReadFailedException { - return delegate.getAllIds(id, ctx); - } - } - -} diff --git a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/registry/TypeHierarchy.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/registry/TypeHierarchy.java deleted file mode 100644 index a30663221..000000000 --- a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/registry/TypeHierarchy.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.translate.util.read.registry; - -import static com.google.common.base.Preconditions.checkArgument; - -import com.google.common.collect.Iterables; -import java.util.HashSet; -import java.util.LinkedList; -import java.util.List; -import java.util.Set; -import java.util.stream.Collectors; -import javax.annotation.Nonnull; -import org.jgrapht.experimental.dag.DirectedAcyclicGraph; -import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; - -final class TypeHierarchy { - private final DirectedAcyclicGraph<InstanceIdentifier<?>, Parent> hierarchy; - - private TypeHierarchy(@Nonnull final DirectedAcyclicGraph<InstanceIdentifier<?>, Parent> hierarchy) { - this.hierarchy = hierarchy; - } - - Set<InstanceIdentifier<?>> getAllChildren(InstanceIdentifier<?> id) { - final HashSet<InstanceIdentifier<?>> instanceIdentifiers = new HashSet<>(); - for (InstanceIdentifier<?> childId : getDirectChildren(id)) { - instanceIdentifiers.add(childId); - instanceIdentifiers.addAll(getAllChildren(childId)); - } - return instanceIdentifiers; - } - - Set<InstanceIdentifier<?>> getDirectChildren(InstanceIdentifier<?> id) { - checkArgument(hierarchy.vertexSet().contains(id), - "Unknown reader: %s. Known readers: %s", id, hierarchy.vertexSet()); - - return hierarchy.outgoingEdgesOf(id).stream() - .map(hierarchy::getEdgeTarget) - .collect(Collectors.toSet()); - } - - Set<InstanceIdentifier<?>> getRoots() { - return hierarchy.vertexSet().stream() - .filter(vertex -> hierarchy.incomingEdgesOf(vertex).size() == 0) - .collect(Collectors.toSet()); - } - - /** - * Create reader hierarchy from a flat set of instance identifiers. - * - * @param allIds Set of unkeyed instance identifiers - */ - static TypeHierarchy create(@Nonnull Set<InstanceIdentifier<?>> allIds) { - final DirectedAcyclicGraph<InstanceIdentifier<?>, Parent> - readersHierarchy = new DirectedAcyclicGraph<>((sourceVertex, targetVertex) -> new Parent()); - - for (InstanceIdentifier<?> allId : allIds) { - checkArgument(!Iterables.isEmpty(allId.getPathArguments()), "Empty ID detected"); - - if (Iterables.size(allId.getPathArguments()) == 1) { - readersHierarchy.addVertex(allId); - } - - List<InstanceIdentifier.PathArgument> pathArgs = new LinkedList<>(); - pathArgs.add(allId.getPathArguments().iterator().next()); - - for (InstanceIdentifier.PathArgument pathArgument : Iterables.skip(allId.getPathArguments(), 1)) { - final InstanceIdentifier<?> previous = InstanceIdentifier.create(pathArgs); - pathArgs.add(pathArgument); - final InstanceIdentifier<?> current = InstanceIdentifier.create(pathArgs); - - readersHierarchy.addVertex(previous); - readersHierarchy.addVertex(current); - - try { - readersHierarchy.addDagEdge(previous, current); - } catch (DirectedAcyclicGraph.CycleFoundException e) { - throw new IllegalArgumentException("Loop in hierarchy detected", e); - } - } - } - - return new TypeHierarchy(readersHierarchy); - } - - private static final class Parent{} -} diff --git a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/write/registry/FlatWriterRegistry.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/write/registry/FlatWriterRegistry.java deleted file mode 100644 index e5b829d6a..000000000 --- a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/write/registry/FlatWriterRegistry.java +++ /dev/null @@ -1,314 +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.translate.util.write.registry; - -import static com.google.common.base.Preconditions.checkArgument; -import static com.google.common.base.Preconditions.checkNotNull; -import static io.fd.honeycomb.translate.util.RWUtils.makeIidWildcarded; - -import com.google.common.base.Optional; -import com.google.common.collect.HashMultimap; -import com.google.common.collect.ImmutableMap; -import com.google.common.collect.ImmutableSet; -import com.google.common.collect.Lists; -import com.google.common.collect.Multimap; -import com.google.common.collect.Sets; -import io.fd.honeycomb.translate.TranslationException; -import io.fd.honeycomb.translate.util.RWUtils; -import io.fd.honeycomb.translate.write.DataObjectUpdate; -import io.fd.honeycomb.translate.write.WriteContext; -import io.fd.honeycomb.translate.write.WriteFailedException; -import io.fd.honeycomb.translate.write.Writer; -import io.fd.honeycomb.translate.write.registry.WriterRegistry; -import java.util.Collection; -import java.util.Collections; -import java.util.HashSet; -import java.util.Map; -import java.util.Set; -import java.util.stream.Collectors; -import javax.annotation.Nonnull; -import javax.annotation.Nullable; -import javax.annotation.concurrent.ThreadSafe; -import org.opendaylight.yangtools.yang.binding.DataObject; -import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; - -/** - * Flat writer registry, delegating updates to writers in the order writers were submitted. - */ -@ThreadSafe -final class FlatWriterRegistry implements WriterRegistry { - - private static final Logger LOG = LoggerFactory.getLogger(FlatWriterRegistry.class); - - // All types handled by writers directly or as children - private final ImmutableSet<InstanceIdentifier<?>> handledTypes; - - private final Set<InstanceIdentifier<?>> writersOrderReversed; - private final Set<InstanceIdentifier<?>> writersOrder; - private final Map<InstanceIdentifier<?>, Writer<?>> writers; - - /** - * Create flat registry instance. - * - * @param writers immutable, ordered map of writers to use to process updates. Order of the writers has to be - * one in which create and update operations should be handled. Deletes will be handled in reversed - * order. All deletes are handled before handling all the updates. - */ - FlatWriterRegistry(@Nonnull final ImmutableMap<InstanceIdentifier<?>, Writer<?>> writers) { - this.writers = writers; - this.writersOrderReversed = Sets.newLinkedHashSet(Lists.reverse(Lists.newArrayList(writers.keySet()))); - this.writersOrder = writers.keySet(); - this.handledTypes = getAllHandledTypes(writers); - } - - private static ImmutableSet<InstanceIdentifier<?>> getAllHandledTypes( - @Nonnull final ImmutableMap<InstanceIdentifier<?>, Writer<?>> writers) { - final ImmutableSet.Builder<InstanceIdentifier<?>> handledTypesBuilder = ImmutableSet.builder(); - for (Map.Entry<InstanceIdentifier<?>, Writer<?>> writerEntry : writers.entrySet()) { - final InstanceIdentifier<?> writerType = writerEntry.getKey(); - final Writer<?> writer = writerEntry.getValue(); - handledTypesBuilder.add(writerType); - if (writer instanceof SubtreeWriter) { - handledTypesBuilder.addAll(((SubtreeWriter<?>) writer).getHandledChildTypes()); - } - } - return handledTypesBuilder.build(); - } - - @Override - public void update(@Nonnull final DataObjectUpdates updates, - @Nonnull final WriteContext ctx) throws TranslationException { - if (updates.isEmpty()) { - return; - } - - // Optimization - if (updates.containsOnlySingleType()) { - // First process delete - singleUpdate(updates.getDeletes(), ctx); - // Next is update - singleUpdate(updates.getUpdates(), ctx); - } else { - // First process deletes - bulkUpdate(updates.getDeletes(), ctx, true, writersOrderReversed); - // Next are updates - bulkUpdate(updates.getUpdates(), ctx, true, writersOrder); - } - - LOG.debug("Update successful for types: {}", updates.getTypeIntersection()); - LOG.trace("Update successful for: {}", updates); - } - - private void singleUpdate(@Nonnull final Multimap<InstanceIdentifier<?>, ? extends DataObjectUpdate> updates, - @Nonnull final WriteContext ctx) throws WriteFailedException { - if (updates.isEmpty()) { - return; - } - - final InstanceIdentifier<?> singleType = updates.keySet().iterator().next(); - LOG.debug("Performing single type update for: {}", singleType); - Collection<? extends DataObjectUpdate> singleTypeUpdates = updates.get(singleType); - Writer<?> writer = getWriter(singleType); - - if (writer == null) { - // This node must be handled by a subtree writer, find it and call it or else fail - checkArgument(handledTypes.contains(singleType), "Unable to process update. Missing writers for: %s", - singleType); - writer = getSubtreeWriterResponsible(singleType); - singleTypeUpdates = getParentDataObjectUpdate(ctx, updates, writer); - } - - LOG.trace("Performing single type update with writer: {}", writer); - for (DataObjectUpdate singleUpdate : singleTypeUpdates) { - writer.update(singleUpdate.getId(), singleUpdate.getDataBefore(), singleUpdate.getDataAfter(), ctx); - } - } - - private Writer<?> getSubtreeWriterResponsible(final InstanceIdentifier<?> singleType) { - return writers.values().stream() - .filter(w -> w instanceof SubtreeWriter) - .filter(w -> ((SubtreeWriter<?>) w).getHandledChildTypes().contains(singleType)) - .findFirst() - .get(); - } - - private Collection<DataObjectUpdate> getParentDataObjectUpdate(final WriteContext ctx, - final Multimap<InstanceIdentifier<?>, ? extends DataObjectUpdate> updates, - final Writer<?> writer) { - // Now read data for subtree reader root, but first keyed ID is needed and that ID can be cut from updates - InstanceIdentifier<?> firstAffectedChildId = ((SubtreeWriter<?>) writer).getHandledChildTypes().stream() - .filter(updates::containsKey) - .map(unkeyedId -> updates.get(unkeyedId)) - .flatMap(doUpdates -> doUpdates.stream()) - .map(DataObjectUpdate::getId) - .findFirst() - .get(); - - final InstanceIdentifier<?> parentKeyedId = - RWUtils.cutId(firstAffectedChildId, writer.getManagedDataObjectType()); - - final Optional<? extends DataObject> parentBefore = ctx.readBefore(parentKeyedId); - final Optional<? extends DataObject> parentAfter = ctx.readAfter(parentKeyedId); - return Collections.singleton( - DataObjectUpdate.create(parentKeyedId, parentBefore.orNull(), parentAfter.orNull())); - } - - private void bulkUpdate(@Nonnull final Multimap<InstanceIdentifier<?>, ? extends DataObjectUpdate> updates, - @Nonnull final WriteContext ctx, - final boolean attemptRevert, - @Nonnull final Set<InstanceIdentifier<?>> writersOrder) throws BulkUpdateException { - if (updates.isEmpty()) { - return; - } - - LOG.debug("Performing bulk update with revert attempt: {} for: {}", attemptRevert, updates.keySet()); - - // Check that all updates can be handled - checkAllTypesCanBeHandled(updates); - - // Capture all changes successfully processed in case revert is needed - final Set<InstanceIdentifier<?>> processedNodes = new HashSet<>(); - - // Iterate over all writers and call update if there are any related updates - for (InstanceIdentifier<?> writerType : writersOrder) { - Collection<? extends DataObjectUpdate> writersData = updates.get(writerType); - final Writer<?> writer = getWriter(writerType); - - if (writersData.isEmpty()) { - // If there are no data for current writer, but it is a SubtreeWriter and there are updates to - // its children, still invoke it with its root data - if (writer instanceof SubtreeWriter<?> && isAffected(((SubtreeWriter<?>) writer), updates)) { - // Provide parent data for SubtreeWriter for further processing - writersData = getParentDataObjectUpdate(ctx, updates, writer); - } else { - // Skipping unaffected writer - // Alternative to this would be modification sort according to the order of writers - continue; - } - } - - LOG.debug("Performing update for: {}", writerType); - LOG.trace("Performing update with writer: {}", writer); - - for (DataObjectUpdate singleUpdate : writersData) { - try { - writer.update(singleUpdate.getId(), singleUpdate.getDataBefore(), singleUpdate.getDataAfter(), ctx); - processedNodes.add(singleUpdate.getId()); - LOG.trace("Update successful for type: {}", writerType); - LOG.debug("Update successful for: {}", singleUpdate); - } catch (Exception e) { - // do not log this exception here,its logged in ModifiableDataTreeDelegator - - final Reverter reverter = attemptRevert - ? new ReverterImpl(processedNodes, updates, writersOrder) - : (final WriteContext writeContext) -> {};//NOOP reverter - - // Find out which changes left unprocessed - final Set<InstanceIdentifier<?>> unprocessedChanges = updates.values().stream() - .map(DataObjectUpdate::getId) - .filter(id -> !processedNodes.contains(id)) - .collect(Collectors.toSet()); - throw new BulkUpdateException(unprocessedChanges, reverter, e); - } - } - } - } - - private void checkAllTypesCanBeHandled( - @Nonnull final Multimap<InstanceIdentifier<?>, ? extends DataObjectUpdate> updates) { - if (!handledTypes.containsAll(updates.keySet())) { - final Sets.SetView<InstanceIdentifier<?>> missingWriters = Sets.difference(updates.keySet(), handledTypes); - LOG.warn("Unable to process update. Missing writers for: {}", missingWriters); - throw new IllegalArgumentException("Unable to process update. Missing writers for: " + missingWriters); - } - } - - /** - * Check whether {@link SubtreeWriter} is affected by the updates. - * - * @return true if there are any updates to SubtreeWriter's child nodes (those marked by SubtreeWriter - * as being taken care of) - * */ - private static boolean isAffected(final SubtreeWriter<?> writer, - final Multimap<InstanceIdentifier<?>, ? extends DataObjectUpdate> updates) { - return !Sets.intersection(writer.getHandledChildTypes(), updates.keySet()).isEmpty(); - } - - @Nullable - private Writer<?> getWriter(@Nonnull final InstanceIdentifier<?> singleType) { - return writers.get(singleType); - } - - private final class ReverterImpl implements Reverter { - - private final Collection<InstanceIdentifier<?>> processedNodes; - private final Multimap<InstanceIdentifier<?>, ? extends DataObjectUpdate> updates; - private final Set<InstanceIdentifier<?>> revertDeleteOrder; - - ReverterImpl(final Collection<InstanceIdentifier<?>> processedNodes, - final Multimap<InstanceIdentifier<?>, ? extends DataObjectUpdate> updates, - final Set<InstanceIdentifier<?>> writersOrderOriginal) { - this.processedNodes = processedNodes; - this.updates = updates; - // Use opposite ordering when executing revert - this.revertDeleteOrder = writersOrderOriginal == FlatWriterRegistry.this.writersOrder - ? FlatWriterRegistry.this.writersOrderReversed - : FlatWriterRegistry.this.writersOrder; - } - - @Override - public void revert(@Nonnull final WriteContext writeContext) throws RevertFailedException { - checkNotNull(writeContext, "Cannot revert changes for null context"); - - Multimap<InstanceIdentifier<?>, DataObjectUpdate> updatesToRevert = - filterAndRevertProcessed(updates, processedNodes); - - LOG.info("Attempting revert for changes: {}", updatesToRevert); - try { - // Perform reversed bulk update without revert attempt - bulkUpdate(updatesToRevert, writeContext, true, revertDeleteOrder); - LOG.info("Revert successful"); - } catch (BulkUpdateException e) { - LOG.error("Revert failed", e); - throw new RevertFailedException(e.getFailedIds(), e); - } - } - - /** - * Create new updates map, but only keep already processed changes. Switching before and after data for each - * update. - */ - private Multimap<InstanceIdentifier<?>, DataObjectUpdate> filterAndRevertProcessed( - final Multimap<InstanceIdentifier<?>, ? extends DataObjectUpdate> updates, - final Collection<InstanceIdentifier<?>> processedNodes) { - final Multimap<InstanceIdentifier<?>, DataObjectUpdate> filtered = HashMultimap.create(); - for (InstanceIdentifier<?> processedNode : processedNodes) { - final InstanceIdentifier<?> wildcardedIid = makeIidWildcarded(processedNode); - if (updates.containsKey(wildcardedIid)) { - updates.get(wildcardedIid).stream() - .filter(dataObjectUpdate -> processedNode.contains(dataObjectUpdate.getId())) - // putting under unkeyed identifier, to prevent failing of checkAllTypesCanBeHandled - .forEach(dataObjectUpdate -> filtered.put(wildcardedIid, dataObjectUpdate.reverse())); - } - } - return filtered; - } - } - -} diff --git a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/write/registry/FlatWriterRegistryBuilder.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/write/registry/FlatWriterRegistryBuilder.java deleted file mode 100644 index 0f75de7e7..000000000 --- a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/write/registry/FlatWriterRegistryBuilder.java +++ /dev/null @@ -1,71 +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.translate.util.write.registry; - -import com.google.common.annotations.VisibleForTesting; -import com.google.common.collect.ImmutableMap; -import io.fd.honeycomb.translate.write.registry.WriterRegistryBuilder; -import io.fd.honeycomb.translate.util.AbstractSubtreeManagerRegistryBuilderBuilder; -import io.fd.honeycomb.translate.write.Writer; -import io.fd.honeycomb.translate.write.registry.ModifiableWriterRegistryBuilder; -import io.fd.honeycomb.translate.write.registry.WriterRegistry; -import java.util.Set; -import java.util.stream.Collectors; -import javax.annotation.Nonnull; -import javax.annotation.concurrent.NotThreadSafe; -import org.opendaylight.yangtools.yang.binding.DataObject; -import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; - -/** - * Builder for {@link FlatWriterRegistry} allowing users to specify inter-writer relationships. - */ -@NotThreadSafe -public final class FlatWriterRegistryBuilder - extends AbstractSubtreeManagerRegistryBuilderBuilder<Writer<? extends DataObject>, WriterRegistry> - implements ModifiableWriterRegistryBuilder, WriterRegistryBuilder { - - private static final Logger LOG = LoggerFactory.getLogger(FlatWriterRegistryBuilder.class); - - @Override - protected Writer<? extends DataObject> getSubtreeHandler(final @Nonnull Set<InstanceIdentifier<?>> handledChildren, - final @Nonnull Writer<? extends DataObject> writer) { - return SubtreeWriter.createForWriter(handledChildren, writer); - } - - /** - * Create FlatWriterRegistry with writers ordered according to submitted relationships. - */ - @Override - public WriterRegistry build() { - final ImmutableMap<InstanceIdentifier<?>, Writer<?>> mappedWriters = getMappedHandlers(); - LOG.debug("Building writer registry with writers: {}", - mappedWriters.keySet().stream() - .map(InstanceIdentifier::getTargetType) - .map(Class::getSimpleName) - .collect(Collectors.joining(", "))); - LOG.trace("Building writer registry with writers: {}", mappedWriters); - return new FlatWriterRegistry(mappedWriters); - } - - @VisibleForTesting - @Override - protected ImmutableMap<InstanceIdentifier<?>, Writer<? extends DataObject>> getMappedHandlers() { - return super.getMappedHandlers(); - } -} diff --git a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/write/registry/SubtreeWriter.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/write/registry/SubtreeWriter.java deleted file mode 100644 index bab1da16f..000000000 --- a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/write/registry/SubtreeWriter.java +++ /dev/null @@ -1,85 +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.translate.util.write.registry; - -import static com.google.common.base.Preconditions.checkArgument; - -import com.google.common.collect.Iterables; -import io.fd.honeycomb.translate.write.WriteContext; -import io.fd.honeycomb.translate.write.WriteFailedException; -import io.fd.honeycomb.translate.write.Writer; -import java.util.HashSet; -import java.util.Set; -import javax.annotation.Nonnull; -import javax.annotation.Nullable; -import org.opendaylight.yangtools.yang.binding.DataObject; -import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; - -/** - * Simple writer delegate for subtree writers (writers handling also children nodes) providing a list of all the - * children nodes being handled. - */ -final class SubtreeWriter<D extends DataObject> implements Writer<D> { - - private final Writer<D> delegate; - private final Set<InstanceIdentifier<?>> handledChildTypes = new HashSet<>(); - - private SubtreeWriter(final Writer<D> delegate, Set<InstanceIdentifier<?>> handledTypes) { - this.delegate = delegate; - for (InstanceIdentifier<?> handledType : handledTypes) { - // Iid has to start with writer's handled root type - checkArgument(delegate.getManagedDataObjectType().getTargetType().equals( - handledType.getPathArguments().iterator().next().getType()), - "Handled node from subtree has to be identified by an instance identifier starting from: %s." - + "Instance identifier was: %s", getManagedDataObjectType().getTargetType(), handledType); - checkArgument(Iterables.size(handledType.getPathArguments()) > 1, - "Handled node from subtree identifier too short: %s", handledType); - handledChildTypes.add(InstanceIdentifier.create(Iterables.concat( - getManagedDataObjectType().getPathArguments(), Iterables.skip(handledType.getPathArguments(), 1)))); - } - } - - /** - * Return set of types also handled by this writer. All of the types are children of the type managed by this - * writer excluding the type of this writer. - */ - Set<InstanceIdentifier<?>> getHandledChildTypes() { - return handledChildTypes; - } - - @Override - public void update( - @Nonnull final InstanceIdentifier<? extends DataObject> id, - @Nullable final DataObject dataBefore, - @Nullable final DataObject dataAfter, @Nonnull final WriteContext ctx) throws WriteFailedException { - delegate.update(id, dataBefore, dataAfter, ctx); - } - - @Override - @Nonnull - public InstanceIdentifier<D> getManagedDataObjectType() { - return delegate.getManagedDataObjectType(); - } - - /** - * Wrap a writer as a subtree writer. - */ - static Writer<?> createForWriter(@Nonnull final Set<InstanceIdentifier<?>> handledChildren, - @Nonnull final Writer<? extends DataObject> writer) { - return new SubtreeWriter<>(writer, handledChildren); - } -} |