| /** |
| * 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.replication.regionserver; |
| |
| import org.apache.hadoop.hbase.executor.EventType; |
| import org.apache.hadoop.hbase.procedure2.RSProcedureCallable; |
| import org.apache.hadoop.hbase.regionserver.HRegionServer; |
| import org.apache.yetus.audience.InterfaceAudience; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import org.apache.hbase.thirdparty.com.google.protobuf.InvalidProtocolBufferException; |
| |
| import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.PeerModificationType; |
| import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RefreshPeerParameter; |
| |
| /** |
| * The callable executed at RS side to refresh the peer config/state. <br/> |
| */ |
| @InterfaceAudience.Private |
| public class RefreshPeerCallable implements RSProcedureCallable { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(RefreshPeerCallable.class); |
| |
| private HRegionServer rs; |
| |
| private String peerId; |
| |
| private PeerModificationType type; |
| |
| private int stage; |
| |
| private Exception initError; |
| |
| @Override |
| public Void call() throws Exception { |
| if (initError != null) { |
| throw initError; |
| } |
| |
| LOG.info("Received a peer change event, peerId=" + peerId + ", type=" + type); |
| PeerProcedureHandler handler = rs.getReplicationSourceService().getPeerProcedureHandler(); |
| switch (type) { |
| case ADD_PEER: |
| handler.addPeer(this.peerId); |
| break; |
| case REMOVE_PEER: |
| handler.removePeer(this.peerId); |
| break; |
| case ENABLE_PEER: |
| handler.enablePeer(this.peerId); |
| break; |
| case DISABLE_PEER: |
| handler.disablePeer(this.peerId); |
| break; |
| case UPDATE_PEER_CONFIG: |
| handler.updatePeerConfig(this.peerId); |
| break; |
| case TRANSIT_SYNC_REPLICATION_STATE: |
| handler.transitSyncReplicationPeerState(peerId, stage, rs); |
| break; |
| default: |
| throw new IllegalArgumentException("Unknown peer modification type: " + type); |
| } |
| return null; |
| } |
| |
| @Override |
| public void init(byte[] parameter, HRegionServer rs) { |
| this.rs = rs; |
| try { |
| RefreshPeerParameter param = RefreshPeerParameter.parseFrom(parameter); |
| this.peerId = param.getPeerId(); |
| this.type = param.getType(); |
| this.stage = param.getStage(); |
| } catch (InvalidProtocolBufferException e) { |
| initError = e; |
| } |
| } |
| |
| @Override |
| public EventType getEventType() { |
| return EventType.RS_REFRESH_PEER; |
| } |
| } |