| /** |
| * 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.ha.protocolPB; |
| |
| import java.io.IOException; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.classification.InterfaceStability; |
| import org.apache.hadoop.ha.ZKFCProtocol; |
| import org.apache.hadoop.ha.proto.ZKFCProtocolProtos.CedeActiveRequestProto; |
| import org.apache.hadoop.ha.proto.ZKFCProtocolProtos.CedeActiveResponseProto; |
| import org.apache.hadoop.ha.proto.ZKFCProtocolProtos.GracefulFailoverRequestProto; |
| import org.apache.hadoop.ha.proto.ZKFCProtocolProtos.GracefulFailoverResponseProto; |
| import org.apache.hadoop.ipc.ProtocolSignature; |
| import org.apache.hadoop.ipc.RPC; |
| |
| import com.google.protobuf.RpcController; |
| import com.google.protobuf.ServiceException; |
| |
| @InterfaceAudience.Private |
| @InterfaceStability.Stable |
| public class ZKFCProtocolServerSideTranslatorPB implements |
| ZKFCProtocolPB { |
| private final ZKFCProtocol server; |
| |
| public ZKFCProtocolServerSideTranslatorPB(ZKFCProtocol server) { |
| this.server = server; |
| } |
| |
| @Override |
| public CedeActiveResponseProto cedeActive(RpcController controller, |
| CedeActiveRequestProto request) throws ServiceException { |
| try { |
| server.cedeActive(request.getMillisToCede()); |
| return CedeActiveResponseProto.getDefaultInstance(); |
| } catch (IOException e) { |
| throw new ServiceException(e); |
| } |
| } |
| |
| @Override |
| public GracefulFailoverResponseProto gracefulFailover( |
| RpcController controller, GracefulFailoverRequestProto request) |
| throws ServiceException { |
| try { |
| server.gracefulFailover(); |
| return GracefulFailoverResponseProto.getDefaultInstance(); |
| } catch (IOException e) { |
| throw new ServiceException(e); |
| } |
| } |
| |
| @Override |
| public long getProtocolVersion(String protocol, long clientVersion) |
| throws IOException { |
| return RPC.getProtocolVersion(ZKFCProtocolPB.class); |
| } |
| |
| @Override |
| public ProtocolSignature getProtocolSignature(String protocol, |
| long clientVersion, int clientMethodsHash) throws IOException { |
| if (!protocol.equals(RPC.getProtocolName(ZKFCProtocolPB.class))) { |
| throw new IOException("Serverside implements " + |
| RPC.getProtocolName(ZKFCProtocolPB.class) + |
| ". The following requested protocol is unknown: " + protocol); |
| } |
| |
| return ProtocolSignature.getProtocolSignature(clientMethodsHash, |
| RPC.getProtocolVersion(ZKFCProtocolPB.class), |
| HAServiceProtocolPB.class); |
| } |
| |
| } |