2 * Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
9 package org.opendaylight.controller.cluster.sharding;
11 import com.google.common.base.Preconditions;
12 import com.google.common.collect.ImmutableList;
13 import java.util.Collection;
14 import java.util.concurrent.atomic.AtomicLong;
15 import javax.annotation.Nonnull;
16 import org.opendaylight.controller.cluster.databroker.actors.dds.ClientLocalHistory;
17 import org.opendaylight.controller.cluster.databroker.actors.dds.DataStoreClient;
18 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
19 import org.opendaylight.mdsal.dom.spi.shard.DOMDataTreeShardProducer;
20 import org.opendaylight.mdsal.dom.spi.shard.DOMDataTreeShardWriteTransaction;
21 import org.opendaylight.mdsal.dom.store.inmemory.InMemoryDOMDataTreeShard;
22 import org.slf4j.Logger;
23 import org.slf4j.LoggerFactory;
26 * Proxy producer implementation that creates transactions that forward all calls to {@link DataStoreClient}.
28 class ShardProxyProducer implements DOMDataTreeShardProducer {
30 private static final Logger LOG = LoggerFactory.getLogger(InMemoryDOMDataTreeShard.class);
31 private static final AtomicLong COUNTER = new AtomicLong();
33 private final DOMDataTreeIdentifier shardRoot;
34 private final Collection<DOMDataTreeIdentifier> prefixes;
35 private final ClientLocalHistory history;
36 private DistributedShardModificationFactory modificationFactory;
38 ShardProxyProducer(final DOMDataTreeIdentifier shardRoot,
39 final Collection<DOMDataTreeIdentifier> prefixes,
40 final DataStoreClient client,
41 final DistributedShardModificationFactory modificationFactory) {
42 this.shardRoot = Preconditions.checkNotNull(shardRoot);
43 this.prefixes = ImmutableList.copyOf(Preconditions.checkNotNull(prefixes));
44 this.modificationFactory = Preconditions.checkNotNull(modificationFactory);
45 history = Preconditions.checkNotNull(client).createLocalHistory();
50 public Collection<DOMDataTreeIdentifier> getPrefixes() {
55 public DOMDataTreeShardWriteTransaction createTransaction() {
56 return new ShardProxyTransaction(shardRoot, prefixes,
57 modificationFactory.createModification(history.createTransaction()));
60 DistributedShardModificationFactory getModificationFactory() {
61 return modificationFactory;
64 void setModificationFactory(final DistributedShardModificationFactory modificationFactory) {
65 this.modificationFactory = Preconditions.checkNotNull(modificationFactory);