From f93415dd8b3719b380b4295ab364420b9bf3d927 Mon Sep 17 00:00:00 2001 From: Marek Gradzki Date: Mon, 11 Apr 2016 08:56:06 +0200 Subject: HONEYCOMB-34: Config tree initialization using ModifiableDataTree dependency Change-Id: I9fa6119a92cc1979ed6f3364bb74e856a7a712c5 Signed-off-by: Marek Gradzki --- .../vpp/data/init/AbstractDataTreeConverter.java | 127 +++++++++++++++++++++ 1 file changed, 127 insertions(+) create mode 100644 v3po/vpp-cfg-init/src/main/java/io/fd/honeycomb/v3po/vpp/data/init/AbstractDataTreeConverter.java (limited to 'v3po/vpp-cfg-init/src/main/java/io/fd/honeycomb/v3po/vpp/data/init/AbstractDataTreeConverter.java') diff --git a/v3po/vpp-cfg-init/src/main/java/io/fd/honeycomb/v3po/vpp/data/init/AbstractDataTreeConverter.java b/v3po/vpp-cfg-init/src/main/java/io/fd/honeycomb/v3po/vpp/data/init/AbstractDataTreeConverter.java new file mode 100644 index 000000000..3048dc18b --- /dev/null +++ b/v3po/vpp-cfg-init/src/main/java/io/fd/honeycomb/v3po/vpp/data/init/AbstractDataTreeConverter.java @@ -0,0 +1,127 @@ +/* + * 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.vpp.data.init; + +import static com.google.common.base.Preconditions.checkNotNull; + +import com.google.common.annotations.Beta; +import com.google.common.base.Optional; +import io.fd.honeycomb.v3po.data.ModifiableDataTree; +import io.fd.honeycomb.v3po.translate.Context; +import io.fd.honeycomb.v3po.translate.read.ReadContext; +import io.fd.honeycomb.v3po.translate.read.ReadFailedException; +import io.fd.honeycomb.v3po.translate.read.ReaderRegistry; +import java.util.Map; +import javax.annotation.Nonnull; +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.DataTreeModification; +import org.opendaylight.yangtools.yang.data.api.schema.tree.DataValidationFailedException; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * Base class for initializers which perform conversion between operational and config YANG model. + * + * @param Config data object + * @param Operational data object + */ +@Beta +public abstract class AbstractDataTreeConverter + implements DataTreeInitializer { + private static final Logger LOG = LoggerFactory.getLogger(AbstractDataTreeConverter.class); + + private final ReaderRegistry readerRegistry; + private final ModifiableDataTree configDataTree; + private final BindingNormalizedNodeSerializer serializer; + private final InstanceIdentifier idOper; + private final InstanceIdentifier idConfig; + + public AbstractDataTreeConverter(@Nonnull final ReaderRegistry readerRegistry, + @Nonnull final ModifiableDataTree configDataTree, + @Nonnull final BindingNormalizedNodeSerializer serializer, + @Nonnull final InstanceIdentifier idOper, + @Nonnull final InstanceIdentifier idConfig) { + this.readerRegistry = checkNotNull(readerRegistry, "readerRegistry should not be null"); + this.configDataTree = checkNotNull(configDataTree, "configDataTree should not be null"); + this.serializer = checkNotNull(serializer, "serializer should not be null"); + this.idOper = checkNotNull(idOper, "idOper should not be null"); + this.idConfig = checkNotNull(idConfig, "idConfig should not be null"); + } + + @Override + public final void initialize() throws InitializeException { + LOG.debug("AbstractDataTreeConverter.initialize()"); + + final Optional data; + try (ReadContext ctx = new ReadContextImpl()) { + data = readerRegistry.read(idOper, ctx); + } catch (ReadFailedException e) { + LOG.warn("Failed to read operational state", e); + return; + } + LOG.debug("Config initialization data={}", data); + + if (data.isPresent()) { + // conversion + final O operationalData = idOper.getTargetType().cast(data.get()); + final C configData = convert(operationalData); + + final Map.Entry> normalizedData = + serializer.toNormalizedNode(idConfig, configData); + + final DataTreeModification modification = configDataTree.takeSnapshot().newModification(); + final YangInstanceIdentifier biPath = normalizedData.getKey(); + final NormalizedNode biData = normalizedData.getValue(); + LOG.debug("Config initialization biPath={}, biData={}", biPath, biData); + modification.write(biPath, biData); + modification.ready(); + + LOG.debug("Config writing modification ..."); + try { + configDataTree.initialize(modification); + LOG.debug("Config writing modification written successfully."); + } catch (DataValidationFailedException e) { + throw new InitializeException("Failed to read operational state", e); + } + } else { + LOG.warn("Data is not present"); + } + } + + protected abstract C convert(final O operationalData); + + // TODO move to utility module + private static final class ReadContextImpl implements ReadContext { + public final Context ctx = new Context(); + + @Nonnull + @Override + public Context getContext() { + return ctx; + } + + @Override + public void close() { + // Make sure to clear the storage in case some customizer stored it to prevent memory leaks + ctx.close(); + } + } +} -- cgit 1.2.3-korg