001/**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.coordination;
019
020import java.io.IOException;
021
022import org.apache.hadoop.hbase.CoordinatedStateManager;
023import org.apache.hadoop.hbase.HBaseInterfaceAudience;
024import org.apache.hadoop.hbase.Server;
025import org.apache.hadoop.hbase.zookeeper.ZKWatcher;
026import org.apache.yetus.audience.InterfaceAudience;
027import org.apache.hadoop.hbase.procedure.ProcedureCoordinatorRpcs;
028import org.apache.hadoop.hbase.procedure.ProcedureMemberRpcs;
029import org.apache.hadoop.hbase.procedure.ZKProcedureCoordinator;
030import org.apache.hadoop.hbase.procedure.ZKProcedureMemberRpcs;
031import org.apache.zookeeper.KeeperException;
032
033/**
034 * ZooKeeper-based implementation of {@link org.apache.hadoop.hbase.CoordinatedStateManager}.
035 */
036@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.CONFIG)
037public class ZkCoordinatedStateManager implements CoordinatedStateManager {
038  protected ZKWatcher watcher;
039  protected SplitLogWorkerCoordination splitLogWorkerCoordination;
040  protected SplitLogManagerCoordination splitLogManagerCoordination;
041
042  public ZkCoordinatedStateManager(Server server) {
043    this.watcher = server.getZooKeeper();
044    splitLogWorkerCoordination = new ZkSplitLogWorkerCoordination(server.getServerName(), watcher);
045    splitLogManagerCoordination = new ZKSplitLogManagerCoordination(server.getConfiguration(),
046        watcher);
047  }
048
049  @Override
050  public SplitLogWorkerCoordination getSplitLogWorkerCoordination() {
051    return splitLogWorkerCoordination;
052  }
053
054  @Override
055  public SplitLogManagerCoordination getSplitLogManagerCoordination() {
056    return splitLogManagerCoordination;
057  }
058
059  @Override
060  public ProcedureCoordinatorRpcs getProcedureCoordinatorRpcs(String procType, String coordNode)
061      throws IOException {
062    return new ZKProcedureCoordinator(watcher, procType, coordNode);
063  }
064
065  @Override
066  public ProcedureMemberRpcs getProcedureMemberRpcs(String procType) throws KeeperException {
067    return new ZKProcedureMemberRpcs(watcher, procType);
068  }
069}