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ReplicationStorageFactory.java
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ReplicationStorageFactory.java
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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.hadoop.hbase.replication;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.util.ReflectionUtils;
import org.apache.hadoop.hbase.zookeeper.ZKWatcher;
import org.apache.yetus.audience.InterfaceAudience;
/**
* Used to create replication storage(peer, queue) classes.
* <p>
* For now we only have zk based implementation.
*/
@InterfaceAudience.Private
public final class ReplicationStorageFactory {
public static final String REPLICATION_PEER_STORAGE_IMPL = "hbase.replication.peer.storage.impl";
public static final String DEFAULT_REPLICATION_PEER_STORAGE_IMPL =
ZKReplicationPeerStorage.class.getName();
public static final String REPLICATION_QUEUE_STORAGE_IMPL =
"hbase.replication.queue.storage.impl";
public static final String DEFAULT_REPLICATION_QUEUE_STORAGE_IMPL =
ZKReplicationQueueStorage.class.getName();
private ReplicationStorageFactory() {
}
/**
* Create a new {@link ReplicationPeerStorage}.
*/
public static ReplicationPeerStorage getReplicationPeerStorage(ZKWatcher zk, Configuration conf) {
String peerStorageClass =
conf.get(REPLICATION_PEER_STORAGE_IMPL, DEFAULT_REPLICATION_PEER_STORAGE_IMPL);
return ReflectionUtils.instantiateWithCustomCtor(peerStorageClass,
new Class[] { ZKWatcher.class, Configuration.class }, new Object[] { zk, conf });
}
/**
* Create a new {@link ReplicationQueueStorage}.
*/
public static ReplicationQueueStorage getReplicationQueueStorage(ZKWatcher zk,
Configuration conf) {
String queueStorageClass =
conf.get(REPLICATION_QUEUE_STORAGE_IMPL, DEFAULT_REPLICATION_QUEUE_STORAGE_IMPL);
return ReflectionUtils.instantiateWithCustomCtor(queueStorageClass,
new Class[] { ZKWatcher.class, Configuration.class }, new Object[] { zk, conf });
}
}