/**
    * 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.coordination;
  
  import org.apache.commons.logging.Log;
  import org.apache.commons.logging.LogFactory;
  import org.apache.hadoop.hbase.classification.InterfaceAudience;
  import org.apache.hadoop.hbase.CoordinatedStateException;
  import org.apache.hadoop.hbase.HBaseInterfaceAudience;
  import org.apache.hadoop.hbase.Server;
  import org.apache.hadoop.hbase.TableStateManager;
  import org.apache.hadoop.hbase.zookeeper.ZKTableStateManager;
  import org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher;
  import org.apache.zookeeper.KeeperException;
  
  /**
   * ZooKeeper-based implementation of {@link org.apache.hadoop.hbase.CoordinatedStateManager}.
   */
  @InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.CONFIG)
  public class ZkCoordinatedStateManager extends BaseCoordinatedStateManager {
    private static final Log LOG = LogFactory.getLog(ZkCoordinatedStateManager.class);
    protected Server server;
    protected ZooKeeperWatcher watcher;
    protected SplitTransactionCoordination splitTransactionCoordination;
    protected CloseRegionCoordination closeRegionCoordination;
    protected SplitLogWorkerCoordination splitLogWorkerCoordination;
    protected SplitLogManagerCoordination splitLogManagerCoordination;
    protected OpenRegionCoordination openRegionCoordination;
    protected RegionMergeCoordination regionMergeCoordination;
  
    @Override
    public void initialize(Server server) {
      this.server = server;
      this.watcher = server.getZooKeeper();
      splitLogWorkerCoordination = new ZkSplitLogWorkerCoordination(this, watcher);
      splitLogManagerCoordination = new ZKSplitLogManagerCoordination(this, watcher);
      splitTransactionCoordination = new ZKSplitTransactionCoordination(this, watcher);
      closeRegionCoordination = new ZkCloseRegionCoordination(this, watcher);
      openRegionCoordination = new ZkOpenRegionCoordination(this, watcher);
      regionMergeCoordination = new ZkRegionMergeCoordination(this, watcher);
    }
  
    @Override
    public Server getServer() {
      return server;
    }
  
    @Override
    public TableStateManager getTableStateManager() throws InterruptedException,
        CoordinatedStateException {
      try {
        return new ZKTableStateManager(server.getZooKeeper());
      } catch (KeeperException e) {
        throw new CoordinatedStateException(e);
      }
    }
  
    @Override
    public SplitLogWorkerCoordination getSplitLogWorkerCoordination() {
      return splitLogWorkerCoordination;
      }
    @Override
    public SplitLogManagerCoordination getSplitLogManagerCoordination() {
      return splitLogManagerCoordination;
    }
  
    @Override
    public SplitTransactionCoordination getSplitTransactionCoordination() {
      return splitTransactionCoordination;
    }
  
    @Override
    public CloseRegionCoordination getCloseRegionCoordination() {
      return closeRegionCoordination;
    }
  
    @Override
    public OpenRegionCoordination getOpenRegionCoordination() {
      return openRegionCoordination;
    }
  
    @Override
    public RegionMergeCoordination getRegionMergeCoordination() {
      return regionMergeCoordination;
   }
 }