| /** |
| * 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.hdfs.protocolPB; |
| |
| import java.io.Closeable; |
| import java.io.IOException; |
| import java.net.InetSocketAddress; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hdfs.protocol.proto.DatanodeProtocolProtos.HeartbeatRequestProto; |
| import org.apache.hadoop.hdfs.server.protocol.DatanodeLifelineProtocol; |
| import org.apache.hadoop.hdfs.server.protocol.DatanodeRegistration; |
| import org.apache.hadoop.hdfs.server.protocol.StorageReport; |
| import org.apache.hadoop.hdfs.server.protocol.VolumeFailureSummary; |
| import org.apache.hadoop.ipc.ProtobufHelper; |
| import org.apache.hadoop.ipc.ProtobufRpcEngine2; |
| import org.apache.hadoop.ipc.ProtocolMetaInterface; |
| import org.apache.hadoop.ipc.RPC; |
| import org.apache.hadoop.ipc.RpcClientUtil; |
| import org.apache.hadoop.net.NetUtils; |
| import org.apache.hadoop.security.UserGroupInformation; |
| |
| import org.apache.hadoop.thirdparty.protobuf.RpcController; |
| import org.apache.hadoop.thirdparty.protobuf.ServiceException; |
| |
| /** |
| * This class is the client side translator to translate the requests made on |
| * {@link DatanodeLifelineProtocol} interfaces to the RPC server implementing |
| * {@link DatanodeLifelineProtocolPB}. |
| */ |
| @InterfaceAudience.Private |
| public class DatanodeLifelineProtocolClientSideTranslatorPB implements |
| ProtocolMetaInterface, DatanodeLifelineProtocol, Closeable { |
| |
| /** RpcController is not used and hence is set to null. */ |
| private static final RpcController NULL_CONTROLLER = null; |
| |
| private final DatanodeLifelineProtocolPB rpcProxy; |
| |
| public DatanodeLifelineProtocolClientSideTranslatorPB( |
| InetSocketAddress nameNodeAddr, Configuration conf) throws IOException { |
| RPC.setProtocolEngine(conf, DatanodeLifelineProtocolPB.class, |
| ProtobufRpcEngine2.class); |
| UserGroupInformation ugi = UserGroupInformation.getCurrentUser(); |
| rpcProxy = createNamenode(nameNodeAddr, conf, ugi); |
| } |
| |
| private static DatanodeLifelineProtocolPB createNamenode( |
| InetSocketAddress nameNodeAddr, Configuration conf, |
| UserGroupInformation ugi) throws IOException { |
| return RPC.getProxy(DatanodeLifelineProtocolPB.class, |
| RPC.getProtocolVersion(DatanodeLifelineProtocolPB.class), nameNodeAddr, |
| ugi, conf, |
| NetUtils.getSocketFactory(conf, DatanodeLifelineProtocolPB.class)); |
| } |
| |
| @Override |
| public void close() throws IOException { |
| RPC.stopProxy(rpcProxy); |
| } |
| |
| @Override |
| public void sendLifeline(DatanodeRegistration registration, |
| StorageReport[] reports, long cacheCapacity, long cacheUsed, |
| int xmitsInProgress, int xceiverCount, int failedVolumes, |
| VolumeFailureSummary volumeFailureSummary) throws IOException { |
| HeartbeatRequestProto.Builder builder = HeartbeatRequestProto.newBuilder() |
| .setRegistration(PBHelper.convert(registration)) |
| .setXmitsInProgress(xmitsInProgress).setXceiverCount(xceiverCount) |
| .setFailedVolumes(failedVolumes); |
| builder.addAllReports(PBHelperClient.convertStorageReports(reports)); |
| if (cacheCapacity != 0) { |
| builder.setCacheCapacity(cacheCapacity); |
| } |
| if (cacheUsed != 0) { |
| builder.setCacheUsed(cacheUsed); |
| } |
| if (volumeFailureSummary != null) { |
| builder.setVolumeFailureSummary(PBHelper.convertVolumeFailureSummary( |
| volumeFailureSummary)); |
| } |
| try { |
| rpcProxy.sendLifeline(NULL_CONTROLLER, builder.build()); |
| } catch (ServiceException se) { |
| throw ProtobufHelper.getRemoteException(se); |
| } |
| } |
| |
| @Override // ProtocolMetaInterface |
| public boolean isMethodSupported(String methodName) |
| throws IOException { |
| return RpcClientUtil.isMethodSupported(rpcProxy, |
| DatanodeLifelineProtocolPB.class, RPC.RpcKind.RPC_PROTOCOL_BUFFER, |
| RPC.getProtocolVersion(DatanodeLifelineProtocolPB.class), methodName); |
| } |
| } |