+++ /dev/null
-/*
- * Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,
- * and is available at http://www.eclipse.org/legal/epl-v10.html
- */
-package org.opendaylight.controller.cluster.sharding;
-
-import static com.google.common.base.Preconditions.checkArgument;
-import static java.util.Objects.requireNonNull;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import org.checkerframework.checker.lock.qual.GuardedBy;
-import org.opendaylight.controller.cluster.databroker.actors.dds.DataStoreClient;
-import org.opendaylight.controller.cluster.datastore.DistributedDataStoreInterface;
-import org.opendaylight.mdsal.dom.api.DOMDataTreeChangeListener;
-import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
-import org.opendaylight.mdsal.dom.api.DOMDataTreeShard;
-import org.opendaylight.mdsal.dom.spi.shard.ChildShardContext;
-import org.opendaylight.mdsal.dom.spi.shard.DOMDataTreeShardProducer;
-import org.opendaylight.mdsal.dom.spi.shard.ForeignShardModificationContext;
-import org.opendaylight.mdsal.dom.spi.shard.ReadableWriteableDOMDataTreeShard;
-import org.opendaylight.mdsal.dom.spi.shard.SubshardProducerSpecification;
-import org.opendaylight.mdsal.dom.spi.shard.WriteableDOMDataTreeShard;
-import org.opendaylight.yangtools.concepts.ListenerRegistration;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-/**
- * Proxy implementation of a shard that creates forwarding producers to the backend shard.
- */
-@Deprecated(forRemoval = true)
-class DistributedShardFrontend implements ReadableWriteableDOMDataTreeShard {
-
- private static final Logger LOG = LoggerFactory.getLogger(DistributedShardFrontend.class);
-
- private final DataStoreClient client;
- private final DOMDataTreeIdentifier shardRoot;
- @GuardedBy("this")
- private final Map<DOMDataTreeIdentifier, ChildShardContext> childShards = new HashMap<>();
- @GuardedBy("this")
- private final List<ShardProxyProducer> producers = new ArrayList<>();
-
- private final DistributedShardChangePublisher publisher;
-
- DistributedShardFrontend(final DistributedDataStoreInterface distributedDataStore,
- final DataStoreClient client,
- final DOMDataTreeIdentifier shardRoot) {
- this.client = requireNonNull(client);
- this.shardRoot = requireNonNull(shardRoot);
-
- publisher = new DistributedShardChangePublisher(client, requireNonNull(distributedDataStore), shardRoot,
- childShards);
- }
-
- @Override
- public synchronized DOMDataTreeShardProducer createProducer(final Collection<DOMDataTreeIdentifier> paths) {
- for (final DOMDataTreeIdentifier prodPrefix : paths) {
- checkArgument(shardRoot.contains(prodPrefix), "Prefix %s is not contained under shard root", prodPrefix,
- paths);
- }
-
- final ShardProxyProducer ret =
- new ShardProxyProducer(shardRoot, paths, client, createModificationFactory(paths));
- producers.add(ret);
- return ret;
- }
-
- @Override
- public synchronized void onChildAttached(final DOMDataTreeIdentifier prefix, final DOMDataTreeShard child) {
- LOG.debug("{} : Child shard attached at {}", shardRoot, prefix);
- checkArgument(child != this, "Attempted to attach child %s onto self", this);
- addChildShard(prefix, child);
- updateProducers();
- }
-
- @Override
- public synchronized void onChildDetached(final DOMDataTreeIdentifier prefix, final DOMDataTreeShard child) {
- LOG.debug("{} : Child shard detached at {}", shardRoot, prefix);
- childShards.remove(prefix);
- updateProducers();
- // TODO we should grab the dataTreeSnapshot that's in the shard and apply it to this shard
- }
-
- private void addChildShard(final DOMDataTreeIdentifier prefix, final DOMDataTreeShard child) {
- checkArgument(child instanceof WriteableDOMDataTreeShard);
- childShards.put(prefix, new ChildShardContext(prefix, (WriteableDOMDataTreeShard) child));
- }
-
- DistributedShardModificationFactory createModificationFactory(final Collection<DOMDataTreeIdentifier> prefixes) {
- // TODO this could be abstract
- final Map<DOMDataTreeIdentifier, SubshardProducerSpecification> affectedSubshards = new HashMap<>();
-
- for (final DOMDataTreeIdentifier producerPrefix : prefixes) {
- for (final ChildShardContext maybeAffected : childShards.values()) {
- final DOMDataTreeIdentifier bindPath;
- if (producerPrefix.contains(maybeAffected.getPrefix())) {
- bindPath = maybeAffected.getPrefix();
- } else if (maybeAffected.getPrefix().contains(producerPrefix)) {
- // Bound path is inside subshard
- bindPath = producerPrefix;
- } else {
- continue;
- }
-
- SubshardProducerSpecification spec = affectedSubshards.computeIfAbsent(maybeAffected.getPrefix(),
- k -> new SubshardProducerSpecification(maybeAffected));
- spec.addPrefix(bindPath);
- }
- }
-
- final DistributedShardModificationFactoryBuilder builder =
- new DistributedShardModificationFactoryBuilder(shardRoot);
- for (final SubshardProducerSpecification spec : affectedSubshards.values()) {
- final ForeignShardModificationContext foreignContext =
- new ForeignShardModificationContext(spec.getPrefix(), spec.createProducer());
- builder.addSubshard(foreignContext);
- builder.addSubshard(spec.getPrefix(), foreignContext);
- }
-
- return builder.build();
- }
-
- private void updateProducers() {
- for (final ShardProxyProducer producer : producers) {
- producer.setModificationFactory(createModificationFactory(producer.getPrefixes()));
- }
- }
-
- @Override
- public <L extends DOMDataTreeChangeListener> ListenerRegistration<L> registerTreeChangeListener(
- final YangInstanceIdentifier treeId, final L listener) {
- return publisher.registerTreeChangeListener(treeId, listener);
- }
-}
Code Review / controller.git / blobdiff