/*
* 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 com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableList;
import java.util.Collection;
import java.util.concurrent.atomic.AtomicLong;
import javax.annotation.Nonnull;
import org.opendaylight.controller.cluster.databroker.actors.dds.ClientLocalHistory;
import org.opendaylight.controller.cluster.databroker.actors.dds.DataStoreClient;
import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
import org.opendaylight.mdsal.dom.spi.shard.DOMDataTreeShardProducer;
import org.opendaylight.mdsal.dom.spi.shard.DOMDataTreeShardWriteTransaction;
import org.opendaylight.mdsal.dom.store.inmemory.InMemoryDOMDataTreeShard;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Proxy producer implementation that creates transactions that forward all calls to {@link DataStoreClient}.
*/
class ShardProxyProducer implements DOMDataTreeShardProducer {
private static final Logger LOG = LoggerFactory.getLogger(InMemoryDOMDataTreeShard.class);
private static final AtomicLong COUNTER = new AtomicLong();
private final DOMDataTreeIdentifier shardRoot;
private final Collection<DOMDataTreeIdentifier> prefixes;
private final ClientLocalHistory history;
private DistributedShardModificationFactory modificationFactory;
ShardProxyProducer(final DOMDataTreeIdentifier shardRoot,
final Collection<DOMDataTreeIdentifier> prefixes,
final DataStoreClient client,
final DistributedShardModificationFactory modificationFactory) {
this.shardRoot = Preconditions.checkNotNull(shardRoot);
this.prefixes = ImmutableList.copyOf(Preconditions.checkNotNull(prefixes));
this.modificationFactory = Preconditions.checkNotNull(modificationFactory);
history = Preconditions.checkNotNull(client).createLocalHistory();
}
@Nonnull
@Override
public Collection<DOMDataTreeIdentifier> getPrefixes() {
return prefixes;
}
@Override
public DOMDataTreeShardWriteTransaction createTransaction() {
return new ShardProxyTransaction(shardRoot, prefixes,
modificationFactory.createModification(history.createTransaction()));
}
DistributedShardModificationFactory getModificationFactory() {
return modificationFactory;
}
void setModificationFactory(final DistributedShardModificationFactory modificationFactory) {
this.modificationFactory = Preconditions.checkNotNull(modificationFactory);
}
}