1 /**
2  * Licensed to the Apache Software Foundation (ASF) under one
3  * or more contributor license agreements.  See the NOTICE file
4  * distributed with this work for additional information
5  * regarding copyright ownership.  The ASF licenses this file
6  * to you under the Apache License, Version 2.0 (the
7  * "License"); you may not use this file except in compliance
8  * with the License.  You may obtain a copy of the License at
9  *
10  *     http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  */
18 
19 package org.apache.hadoop.yarn.server.api.impl.pb.client;
20 
21 import java.io.Closeable;
22 import java.io.IOException;
23 import java.net.InetSocketAddress;
24 
25 import org.apache.hadoop.conf.Configuration;
26 import org.apache.hadoop.ipc.ProtobufRpcEngine;
27 import org.apache.hadoop.ipc.RPC;
28 import org.apache.hadoop.yarn.server.api.SCMAdminProtocol;
29 import org.apache.hadoop.yarn.server.api.SCMAdminProtocolPB;
30 import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.RunSharedCacheCleanerTaskRequestPBImpl;
31 import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.RunSharedCacheCleanerTaskResponsePBImpl;
32 import org.apache.hadoop.yarn.server.api.protocolrecords.RunSharedCacheCleanerTaskRequest;
33 import org.apache.hadoop.yarn.server.api.protocolrecords.RunSharedCacheCleanerTaskResponse;
34 import org.apache.hadoop.yarn.exceptions.YarnException;
35 import org.apache.hadoop.yarn.ipc.RPCUtil;
36 import org.apache.hadoop.yarn.proto.YarnServiceProtos;
37 
38 import com.google.protobuf.ServiceException;
39 
40 public class SCMAdminProtocolPBClientImpl implements SCMAdminProtocol,
41     Closeable {
42 
43   private SCMAdminProtocolPB proxy;
44 
SCMAdminProtocolPBClientImpl(long clientVersion, InetSocketAddress addr, Configuration conf)45   public SCMAdminProtocolPBClientImpl(long clientVersion,
46       InetSocketAddress addr, Configuration conf) throws IOException {
47     RPC.setProtocolEngine(conf, SCMAdminProtocolPB.class,
48         ProtobufRpcEngine.class);
49     proxy = RPC.getProxy(SCMAdminProtocolPB.class, clientVersion, addr, conf);
50   }
51 
52   @Override
close()53   public void close() {
54     if (this.proxy != null) {
55       RPC.stopProxy(this.proxy);
56     }
57   }
58 
59   @Override
runCleanerTask( RunSharedCacheCleanerTaskRequest request)60   public RunSharedCacheCleanerTaskResponse runCleanerTask(
61       RunSharedCacheCleanerTaskRequest request) throws YarnException,
62       IOException {
63     YarnServiceProtos.RunSharedCacheCleanerTaskRequestProto requestProto =
64         ((RunSharedCacheCleanerTaskRequestPBImpl) request).getProto();
65     try {
66       return new RunSharedCacheCleanerTaskResponsePBImpl(proxy.runCleanerTask(null,
67           requestProto));
68     } catch (ServiceException e) {
69       RPCUtil.unwrapAndThrowException(e);
70       return null;
71     }
72   }
73 }
74