com.intel.hadoopRPCBenchmark.protocol.BenchmarkEngineProtocolClientSideTranslatorPB.java Source code

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Here is the source code for com.intel.hadoopRPCBenchmark.protocol.BenchmarkEngineProtocolClientSideTranslatorPB.java

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/**
 * 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 com.intel.hadoopRPCBenchmark.protocol;

import com.google.protobuf.ByteString;
import com.google.protobuf.RpcController;
import com.google.protobuf.ServiceException;
import com.intel.hadoopRPCBenchmark.protocol.proto.BenchmarkEngineProtocolProtos.PingRequestProto;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.ipc.ProtobufHelper;
import org.apache.hadoop.ipc.ProtobufRpcEngine;
import org.apache.hadoop.ipc.RPC;
import org.apache.hadoop.net.NetUtils;
import org.apache.hadoop.security.UserGroupInformation;

import java.io.*;
import java.net.InetSocketAddress;

public class BenchmarkEngineProtocolClientSideTranslatorPB implements BenchmarkEngineProtocol, Closeable {

    /** RpcController is not used and hence is set to null */
    private final BenchmarkEngineProtocolPB rpcProxy;
    private final static RpcController NULL_CONTROLLER = null;

    public BenchmarkEngineProtocolClientSideTranslatorPB(InetSocketAddress nameNodeAddr, Configuration conf)
            throws IOException {
        RPC.setProtocolEngine(conf, BenchmarkEngineProtocolPB.class, ProtobufRpcEngine.class);
        UserGroupInformation ugi = UserGroupInformation.getCurrentUser();
        rpcProxy = RPC.getProxy(BenchmarkEngineProtocolPB.class,
                RPC.getProtocolVersion(BenchmarkEngineProtocolPB.class), nameNodeAddr, ugi, conf,
                NetUtils.getSocketFactory(conf, BenchmarkEngineProtocolPB.class));
    }

    public void close() throws IOException {
        RPC.stopProxy(rpcProxy);
    }

    public void ping(byte[] payload) throws IOException {
        PingRequestProto.Builder builder = PingRequestProto.newBuilder().setPayload(ByteString.copyFrom(payload));
        try {
            rpcProxy.ping(NULL_CONTROLLER, builder.build());
        } catch (ServiceException se) {
            throw ProtobufHelper.getRemoteException(se);
        }
    }
}