+++ /dev/null
-/*
- * Copyright (c) 2017 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 akka.actor.ActorRef.noSender;
-import static java.util.Objects.requireNonNull;
-import static org.opendaylight.controller.cluster.datastore.utils.ClusterUtils.SHARD_PREFIX_QNAME;
-import static org.opendaylight.controller.cluster.datastore.utils.ClusterUtils.SHARD_REPLICAS_QNAME;
-import static org.opendaylight.controller.cluster.datastore.utils.ClusterUtils.SHARD_REPLICA_QNAME;
-
-import akka.actor.ActorRef;
-import java.util.Collection;
-import java.util.EnumMap;
-import java.util.List;
-import java.util.stream.Collectors;
-import org.opendaylight.controller.cluster.access.concepts.MemberName;
-import org.opendaylight.controller.cluster.datastore.DistributedDataStoreInterface;
-import org.opendaylight.controller.cluster.datastore.config.PrefixShardConfiguration;
-import org.opendaylight.controller.cluster.datastore.shardstrategy.PrefixShardStrategy;
-import org.opendaylight.controller.cluster.datastore.utils.ClusterUtils;
-import org.opendaylight.controller.cluster.sharding.messages.PrefixShardCreated;
-import org.opendaylight.controller.cluster.sharding.messages.PrefixShardRemoved;
-import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
-import org.opendaylight.mdsal.dom.api.ClusteredDOMDataTreeChangeListener;
-import org.opendaylight.mdsal.dom.api.DOMDataTreeChangeListener;
-import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
-import org.opendaylight.yangtools.concepts.ListenerRegistration;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
-import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
-import org.opendaylight.yangtools.yang.data.api.schema.LeafSetNode;
-import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
-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;
-
-/**
- * Listens on changes on prefix-shard-configuration. Resolves the changes and
- * notifies handling actor with {@link PrefixShardCreated} and
- * {@link PrefixShardRemoved} messages.
- */
-@Deprecated(forRemoval = true)
-public class PrefixedShardConfigUpdateHandler {
-
- private static final Logger LOG = LoggerFactory.getLogger(PrefixedShardConfigUpdateHandler.class);
- private final ActorRef handlingActor;
- private final MemberName memberName;
-
- private final EnumMap<LogicalDatastoreType,ListenerRegistration<DOMDataTreeChangeListener>> registrations =
- new EnumMap<>(LogicalDatastoreType.class);
-
- public PrefixedShardConfigUpdateHandler(final ActorRef handlingActor, final MemberName memberName) {
- this.handlingActor = requireNonNull(handlingActor);
- this.memberName = requireNonNull(memberName);
- }
-
- public void initListener(final DistributedDataStoreInterface dataStore, final LogicalDatastoreType type) {
- registrations.put(type, dataStore.registerShardConfigListener(
- ClusterUtils.SHARD_LIST_PATH, new ShardConfigHandler(memberName, type, handlingActor)));
- }
-
- public void close() {
- registrations.values().forEach(ListenerRegistration::close);
- registrations.clear();
- }
-
- public static final class ShardConfigHandler implements ClusteredDOMDataTreeChangeListener {
-
- private final MemberName memberName;
- private final LogicalDatastoreType type;
- private final ActorRef handlingActor;
- private final String logName;
-
- public ShardConfigHandler(final MemberName memberName,
- final LogicalDatastoreType type,
- final ActorRef handlingActor) {
- this.memberName = memberName;
- this.type = type;
- this.handlingActor = handlingActor;
- logName = memberName.getName() + "-" + type;
- }
-
- @Override
- public void onDataTreeChanged(final Collection<DataTreeCandidate> changes) {
- changes.forEach(this::resolveChange);
- }
-
- private void resolveChange(final DataTreeCandidate candidate) {
- switch (candidate.getRootNode().getModificationType()) {
- case UNMODIFIED:
- break;
- case APPEARED:
- case DELETE:
- case DISAPPEARED:
- case SUBTREE_MODIFIED:
- case WRITE:
- resolveModifiedRoot(candidate.getRootNode());
- break;
- default:
- break;
- }
- }
-
- private void resolveModifiedRoot(final DataTreeCandidateNode rootNode) {
-
- LOG.debug("{}: New config received {}", logName, rootNode);
- LOG.debug("{}: Data after: {}", logName, rootNode.getDataAfter());
-
- // were in the shards list, iter children and resolve
- for (final DataTreeCandidateNode childNode : rootNode.getChildNodes()) {
- switch (childNode.getModificationType()) {
- case UNMODIFIED:
- break;
- case SUBTREE_MODIFIED:
- case APPEARED:
- case WRITE:
- resolveWrittenShard(childNode);
- break;
- case DELETE:
- case DISAPPEARED:
- resolveDeletedShard(childNode);
- break;
- default:
- break;
- }
- }
- }
-
- @SuppressWarnings("unchecked")
- private void resolveWrittenShard(final DataTreeCandidateNode childNode) {
- final MapEntryNode entryNode = (MapEntryNode) childNode.getDataAfter().get();
- final LeafNode<YangInstanceIdentifier> prefix =
- (LeafNode<YangInstanceIdentifier>) entryNode.getChild(new NodeIdentifier(SHARD_PREFIX_QNAME)).get();
-
- final YangInstanceIdentifier identifier = prefix.getValue();
-
- LOG.debug("{}: Deserialized {} from datastore", logName, identifier);
-
- final ContainerNode replicas =
- (ContainerNode) entryNode.getChild(new NodeIdentifier(SHARD_REPLICAS_QNAME)).get();
-
- final LeafSetNode<String> replicaList =
- (LeafSetNode<String>) replicas.getChild(new NodeIdentifier(SHARD_REPLICA_QNAME)).get();
-
- final List<MemberName> retReplicas = replicaList.getValue().stream()
- .map(child -> MemberName.forName(child.getValue()))
- .collect(Collectors.toList());
-
- LOG.debug("{}: Replicas read from ds {}", logName, retReplicas.toString());
-
- final PrefixShardConfiguration newConfig =
- new PrefixShardConfiguration(new DOMDataTreeIdentifier(type, identifier),
- PrefixShardStrategy.NAME, retReplicas);
-
- LOG.debug("{}: Resulting config {} - sending PrefixShardCreated to {}", logName, newConfig, handlingActor);
-
- handlingActor.tell(new PrefixShardCreated(newConfig), noSender());
- }
-
- private void resolveDeletedShard(final DataTreeCandidateNode childNode) {
-
- final MapEntryNode entryNode = (MapEntryNode) childNode.getDataBefore().get();
-
- final LeafNode<YangInstanceIdentifier> prefix =
- (LeafNode<YangInstanceIdentifier>) entryNode.getChild(new NodeIdentifier(SHARD_PREFIX_QNAME)).get();
-
- final YangInstanceIdentifier deleted = prefix.getValue();
- LOG.debug("{}: Removing shard at {}.", memberName, deleted);
-
- final DOMDataTreeIdentifier domDataTreeIdentifier = new DOMDataTreeIdentifier(type, deleted);
- final PrefixShardRemoved message = new PrefixShardRemoved(domDataTreeIdentifier);
-
- handlingActor.tell(message, noSender());
- }
-
- @Override
- public String toString() {
- return "ShardConfigHandler [logName=" + logName + ", handlingActor=" + handlingActor + "]";
- }
- }
-}
Code Review / controller.git / blobdiff