/**
* 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.yarn.api.impl.pb.client;
import java.io.Closeable;
import java.io.IOException;
import java.net.InetSocketAddress;
import org.apache.hadoop.classification.InterfaceAudience.Private;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.ipc.ProtobufRpcEngine;
import org.apache.hadoop.ipc.RPC;
import org.apache.hadoop.yarn.api.ApplicationMasterProtocol;
import org.apache.hadoop.yarn.api.ApplicationMasterProtocolPB;
import org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest;
import org.apache.hadoop.yarn.api.protocolrecords.AllocateResponse;
import org.apache.hadoop.yarn.api.protocolrecords.FinishApplicationMasterRequest;
import org.apache.hadoop.yarn.api.protocolrecords.FinishApplicationMasterResponse;
import org.apache.hadoop.yarn.api.protocolrecords.RegisterApplicationMasterRequest;
import org.apache.hadoop.yarn.api.protocolrecords.RegisterApplicationMasterResponse;
import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.AllocateRequestPBImpl;
import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.AllocateResponsePBImpl;
import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.FinishApplicationMasterRequestPBImpl;
import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.FinishApplicationMasterResponsePBImpl;
import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.RegisterApplicationMasterRequestPBImpl;
import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.RegisterApplicationMasterResponsePBImpl;
import org.apache.hadoop.yarn.exceptions.YarnException;
import org.apache.hadoop.yarn.ipc.RPCUtil;
import org.apache.hadoop.yarn.proto.YarnServiceProtos.AllocateRequestProto;
import org.apache.hadoop.yarn.proto.YarnServiceProtos.FinishApplicationMasterRequestProto;
import org.apache.hadoop.yarn.proto.YarnServiceProtos.RegisterApplicationMasterRequestProto;
import com.google.protobuf.ServiceException;
@Private
public class ApplicationMasterProtocolPBClientImpl implements ApplicationMasterProtocol, Closeable {
private ApplicationMasterProtocolPB proxy;
public ApplicationMasterProtocolPBClientImpl(long clientVersion, InetSocketAddress addr,
Configuration conf) throws IOException {
RPC.setProtocolEngine(conf, ApplicationMasterProtocolPB.class, ProtobufRpcEngine.class);
proxy =
(ApplicationMasterProtocolPB) RPC.getProxy(ApplicationMasterProtocolPB.class, clientVersion,
addr, conf);
}
@Override
public void close() {
if (this.proxy != null) {
RPC.stopProxy(this.proxy);
}
}
@Override
public AllocateResponse allocate(AllocateRequest request)
throws YarnException, IOException {
AllocateRequestProto requestProto =
((AllocateRequestPBImpl) request).getProto();
try {
return new AllocateResponsePBImpl(proxy.allocate(null, requestProto));
} catch (ServiceException e) {
RPCUtil.unwrapAndThrowException(e);
return null;
}
}
@Override
public FinishApplicationMasterResponse finishApplicationMaster(
FinishApplicationMasterRequest request) throws YarnException,
IOException {
FinishApplicationMasterRequestProto requestProto =
((FinishApplicationMasterRequestPBImpl) request).getProto();
try {
return new FinishApplicationMasterResponsePBImpl(
proxy.finishApplicationMaster(null, requestProto));
} catch (ServiceException e) {
RPCUtil.unwrapAndThrowException(e);
return null;
}
}
@Override
public RegisterApplicationMasterResponse registerApplicationMaster(
RegisterApplicationMasterRequest request) throws YarnException,
IOException {
RegisterApplicationMasterRequestProto requestProto =
((RegisterApplicationMasterRequestPBImpl) request).getProto();
try {
return new RegisterApplicationMasterResponsePBImpl(
proxy.registerApplicationMaster(null, requestProto));
} catch (ServiceException e) {
RPCUtil.unwrapAndThrowException(e);
return null;
}
}
}