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.master.procedure;
019
020import org.apache.hadoop.hbase.master.procedure.PeerProcedureInterface.PeerOperationType;
021import org.apache.hadoop.hbase.procedure2.LockStatus;
022import org.apache.hadoop.hbase.procedure2.Procedure;
023import org.apache.yetus.audience.InterfaceAudience;
024
025@InterfaceAudience.Private
026class PeerQueue extends Queue<String> {
027
028  public PeerQueue(String peerId, LockStatus lockStatus) {
029    super(peerId, lockStatus);
030  }
031
032  @Override
033  public boolean requireExclusiveLock(Procedure<?> proc) {
034    return requirePeerExclusiveLock((PeerProcedureInterface) proc);
035  }
036
037  private static boolean requirePeerExclusiveLock(PeerProcedureInterface proc) {
038    return proc.getPeerOperationType() != PeerOperationType.REFRESH;
039  }
040}