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.replication.regionserver; 019 020import org.apache.hadoop.hbase.executor.EventType; 021import org.apache.hadoop.hbase.procedure2.BaseRSProcedureCallable; 022import org.apache.yetus.audience.InterfaceAudience; 023import org.slf4j.Logger; 024import org.slf4j.LoggerFactory; 025 026import org.apache.hbase.thirdparty.com.google.protobuf.InvalidProtocolBufferException; 027 028import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.PeerModificationType; 029import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RefreshPeerParameter; 030 031/** 032 * The callable executed at RS side to refresh the peer config/state. <br/> 033 */ 034@InterfaceAudience.Private 035public class RefreshPeerCallable extends BaseRSProcedureCallable { 036 037 private static final Logger LOG = LoggerFactory.getLogger(RefreshPeerCallable.class); 038 039 private String peerId; 040 041 private PeerModificationType type; 042 043 private int stage; 044 045 @Override 046 protected void doCall() throws Exception { 047 LOG.info("Received a peer change event, peerId=" + peerId + ", type=" + type); 048 PeerProcedureHandler handler = rs.getReplicationSourceService().getPeerProcedureHandler(); 049 switch (type) { 050 case ADD_PEER: 051 handler.addPeer(this.peerId); 052 break; 053 case REMOVE_PEER: 054 handler.removePeer(this.peerId); 055 break; 056 case ENABLE_PEER: 057 handler.enablePeer(this.peerId); 058 break; 059 case DISABLE_PEER: 060 handler.disablePeer(this.peerId); 061 break; 062 case UPDATE_PEER_CONFIG: 063 handler.updatePeerConfig(this.peerId); 064 break; 065 case TRANSIT_SYNC_REPLICATION_STATE: 066 handler.transitSyncReplicationPeerState(peerId, stage, rs); 067 break; 068 default: 069 throw new IllegalArgumentException("Unknown peer modification type: " + type); 070 } 071 } 072 073 @Override 074 protected void initParameter(byte[] parameter) throws InvalidProtocolBufferException { 075 RefreshPeerParameter param = RefreshPeerParameter.parseFrom(parameter); 076 this.peerId = param.getPeerId(); 077 this.type = param.getType(); 078 this.stage = param.getStage(); 079 } 080 081 @Override 082 public EventType getEventType() { 083 return EventType.RS_REFRESH_PEER; 084 } 085}