| /** |
| * 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.hama.bsp.message; |
| |
| import java.net.InetSocketAddress; |
| import java.util.Iterator; |
| import java.util.Map.Entry; |
| |
| import junit.framework.TestCase; |
| |
| import org.apache.commons.lang.SystemUtils; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.io.IntWritable; |
| import org.apache.hadoop.io.NullWritable; |
| import org.apache.hama.Constants; |
| import org.apache.hama.HamaConfiguration; |
| import org.apache.hama.bsp.BSPMessageBundle; |
| import org.apache.hama.bsp.BSPPeer; |
| import org.apache.hama.bsp.BSPPeerImpl; |
| import org.apache.hama.bsp.Counters; |
| import org.apache.hama.bsp.TaskAttemptID; |
| import org.apache.hama.bsp.message.queue.MemoryQueue; |
| import org.apache.hama.bsp.message.queue.MessageQueue; |
| import org.apache.hama.util.BSPNetUtils; |
| |
| public class TestHamaAsyncMessageManager extends TestCase { |
| |
| public static final String TMP_OUTPUT_PATH = "/tmp/messageQueue"; |
| // increment is here to solve race conditions in parallel execution to choose |
| // other ports |
| public static volatile int increment = 1; |
| |
| public void testMemoryMessaging() throws Exception { |
| if(!SystemUtils.IS_OS_LINUX) { |
| System.out.println("Skipping testcase because Async is only supported for LINUX!"); |
| return; |
| } |
| |
| HamaConfiguration conf = new HamaConfiguration(); |
| conf.setClass(MessageManager.RECEIVE_QUEUE_TYPE_CLASS, MemoryQueue.class, |
| MessageQueue.class); |
| messagingInternal(conf); |
| } |
| |
| private static void messagingInternal(HamaConfiguration conf) |
| throws Exception { |
| conf.set(MessageManagerFactory.MESSAGE_MANAGER_CLASS, |
| "org.apache.hama.bsp.message.HamaAsyncMessageManagerImpl"); |
| MessageManager<IntWritable> messageManager = MessageManagerFactory |
| .getMessageManager(conf); |
| |
| assertTrue(messageManager instanceof HamaAsyncMessageManagerImpl); |
| |
| InetSocketAddress peer = new InetSocketAddress( |
| BSPNetUtils.getCanonicalHostname(), BSPNetUtils.getFreePort() |
| + (increment++)); |
| conf.set(Constants.PEER_HOST, Constants.DEFAULT_PEER_HOST); |
| conf.setInt(Constants.PEER_PORT, Constants.DEFAULT_PEER_PORT); |
| |
| BSPPeer<?, ?, ?, ?, IntWritable> dummyPeer = new BSPPeerImpl<NullWritable, NullWritable, NullWritable, NullWritable, IntWritable>( |
| conf, FileSystem.get(conf), new Counters()); |
| TaskAttemptID id = new TaskAttemptID("1", 1, 1, 1); |
| messageManager.init(id, dummyPeer, conf, peer); |
| peer = messageManager.getListenerAddress(); |
| String peerName = peer.getHostName() + ":" + peer.getPort(); |
| System.out.println("Peer is " + peerName); |
| messageManager.send(peerName, new IntWritable(1337)); |
| |
| Iterator<Entry<InetSocketAddress, BSPMessageBundle<IntWritable>>> messageIterator = messageManager |
| .getOutgoingBundles(); |
| |
| Entry<InetSocketAddress, BSPMessageBundle<IntWritable>> entry = messageIterator |
| .next(); |
| |
| assertEquals(entry.getKey(), peer); |
| |
| assertTrue(entry.getValue().size() == 1); |
| |
| BSPMessageBundle<IntWritable> bundle = new BSPMessageBundle<IntWritable>(); |
| Iterator<IntWritable> it = entry.getValue().iterator(); |
| while (it.hasNext()) { |
| bundle.addMessage(it.next()); |
| } |
| |
| messageManager.transfer(peer, bundle); |
| |
| messageManager.clearOutgoingMessages(); |
| |
| assertTrue(messageManager.getNumCurrentMessages() == 1); |
| IntWritable currentMessage = messageManager.getCurrentMessage(); |
| |
| assertEquals(currentMessage.get(), 1337); |
| messageManager.close(); |
| } |
| } |