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}