hadoop-mapreduce/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/TestRPCFactories.java

/**
* 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
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package org.apache.hadoop.yarn.server.nodemanager;

import java.net.InetSocketAddress;

import org.apache.hadoop.yarn.server.nodemanager.api.protocolrecords.LocalizerHeartbeatResponse;
import org.apache.hadoop.yarn.server.nodemanager.api.protocolrecords.LocalizerStatus;

import junit.framework.Assert;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.ipc.Server;
import org.apache.hadoop.net.NetUtils;
import org.apache.hadoop.yarn.YarnException;
import org.apache.hadoop.yarn.factories.impl.pb.RpcClientFactoryPBImpl;
import org.apache.hadoop.yarn.factories.impl.pb.RpcServerFactoryPBImpl;
import org.apache.hadoop.yarn.server.nodemanager.api.LocalizationProtocol;
import org.junit.Test;

public class TestRPCFactories {
  
  
  
  @Test
  public void test() {
    testPbServerFactory();
    
    testPbClientFactory();
  }
  
  
  
  private void testPbServerFactory() {
    InetSocketAddress addr = new InetSocketAddress(0);
    Configuration conf = new Configuration();
    LocalizationProtocol instance = new LocalizationProtocolTestImpl();
    Server server = null;
    try {
      server = 
        RpcServerFactoryPBImpl.get().getServer(
            LocalizationProtocol.class, instance, addr, conf, null, 1);
      server.start();
    } catch (YarnException e) {
      e.printStackTrace();
      Assert.fail("Failed to create server");
    } finally {
      if (server != null) {
        server.stop();
      }
    }
  }

  
  private void testPbClientFactory() {
    InetSocketAddress addr = new InetSocketAddress(0);
    System.err.println(addr.getHostName() + addr.getPort());
    Configuration conf = new Configuration();
    LocalizationProtocol instance = new LocalizationProtocolTestImpl();
    Server server = null;
    try {
      server = 
        RpcServerFactoryPBImpl.get().getServer(
            LocalizationProtocol.class, instance, addr, conf, null, 1);
      server.start();
      System.err.println(server.getListenerAddress());
      System.err.println(NetUtils.getConnectAddress(server));

      try {
        LocalizationProtocol client = (LocalizationProtocol)
          RpcClientFactoryPBImpl.get().getClient(
              LocalizationProtocol.class, 1,
              NetUtils.getConnectAddress(server), conf);
        Assert.assertNotNull(client);
      } catch (YarnException e) {
        e.printStackTrace();
        Assert.fail("Failed to create client");
      }
      
    } catch (YarnException e) {
      e.printStackTrace();
      Assert.fail("Failed to create server");
    } finally {
      server.stop();
    }     
  }

  public class LocalizationProtocolTestImpl implements LocalizationProtocol {

    @Override
    public LocalizerHeartbeatResponse heartbeat(LocalizerStatus status) {
      return null;
    }
    
  }
}