| /* |
| * 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.reef.wake.test.avro; |
| |
| import org.apache.reef.tang.Configuration; |
| import org.apache.reef.tang.Injector; |
| import org.apache.reef.tang.Tang; |
| import org.apache.reef.tang.exceptions.InjectionException; |
| import org.apache.reef.wake.EventHandler; |
| import org.apache.reef.wake.avro.ProtocolSerializer; |
| import org.apache.reef.wake.avro.ProtocolSerializerNamespace; |
| import org.apache.reef.wake.impl.MultiObserverImpl; |
| import org.apache.reef.wake.remote.*; |
| import org.apache.reef.wake.test.avro.message.AvroTestMessage; |
| |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.TestName; |
| |
| import java.util.concurrent.BlockingQueue; |
| import java.util.concurrent.LinkedBlockingQueue; |
| import java.util.logging.Logger; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| /** |
| * Verify the protocol serializer can serialize and deserialize messages |
| * exchanged between two remote manager classes. |
| */ |
| public final class ProtocolSerializerTest { |
| |
| private static final Logger LOG = Logger.getLogger(ProtocolSerializerTest.class.getName()); |
| |
| @Rule |
| public final TestName name = new TestName(); |
| |
| private RemoteManagerFactory remoteManagerFactory; |
| private ProtocolSerializer serializer; |
| |
| @Before |
| public void setup() throws InjectionException { |
| |
| final Tang tang = Tang.Factory.getTang(); |
| |
| final Configuration config = tang.newConfigurationBuilder() |
| .bindNamedParameter(ProtocolSerializerNamespace.class, "org.apache.reef.wake.test.avro.message") |
| .build(); |
| |
| final Injector injector = tang.newInjector(config); |
| |
| remoteManagerFactory = injector.getInstance(RemoteManagerFactory.class); |
| serializer = injector.getInstance(ProtocolSerializer.class); |
| } |
| |
| /** |
| * Verify Avro message can be serialized and deserialized |
| * between two remote managers. |
| */ |
| @Test |
| public void testProtocolSerializerTest() throws InterruptedException { |
| |
| final int[] numbers = {12, 25}; |
| final String[] strings = {"The first string", "The second string"}; |
| |
| // Queues for storing messages byte messages. |
| final BlockingQueue<byte[]> queue1 = new LinkedBlockingQueue<>(); |
| final BlockingQueue<byte[]> queue2 = new LinkedBlockingQueue<>(); |
| |
| // Remote managers for sending and receiving byte messages. |
| final RemoteManager remoteManager1 = remoteManagerFactory.getInstance("RemoteManagerOne"); |
| final RemoteManager remoteManager2 = remoteManagerFactory.getInstance("RemoteManagerTwo"); |
| |
| // Register message handlers for byte level messages. |
| remoteManager1.registerHandler(byte[].class, new ByteMessageObserver(queue1)); |
| remoteManager2.registerHandler(byte[].class, new ByteMessageObserver(queue2)); |
| |
| final EventHandler<byte[]> sender1 = remoteManager1.getHandler(remoteManager2.getMyIdentifier(), byte[].class); |
| final EventHandler<byte[]> sender2 = remoteManager2.getHandler(remoteManager1.getMyIdentifier(), byte[].class); |
| |
| sender1.onNext(serializer.write(new AvroTestMessage(numbers[0], strings[0]), 1)); |
| sender2.onNext(serializer.write(new AvroTestMessage(numbers[1], strings[1]), 2)); |
| |
| final AvroMessageObserver avroObserver1 = new AvroMessageObserver(); |
| final AvroMessageObserver avroObserver2 = new AvroMessageObserver(); |
| |
| serializer.read(queue1.take(), avroObserver1); |
| serializer.read(queue2.take(), avroObserver2); |
| |
| assertEquals(numbers[0], avroObserver2.getNumber()); |
| assertEquals(strings[0], avroObserver2.getDataString()); |
| |
| assertEquals(numbers[1], avroObserver1.getNumber()); |
| assertEquals(strings[1], avroObserver1.getDataString()); |
| } |
| |
| private final class ByteMessageObserver implements EventHandler<RemoteMessage<byte[]>> { |
| |
| private final BlockingQueue<byte[]> queue; |
| |
| /** |
| * @param queue Queue where incoming messages will be stored. |
| */ |
| ByteMessageObserver(final BlockingQueue<byte[]> queue) { |
| this.queue = queue; |
| } |
| |
| /** |
| * Deserialize and direct incoming messages to the registered MuiltiObserver event handler. |
| * @param message A RemoteMessage<byte[]> object which will be deserialized. |
| */ |
| public void onNext(final RemoteMessage<byte[]> message) { |
| queue.add(message.getMessage()); |
| } |
| } |
| |
| /** |
| * Processes messages from the network remote manager. |
| */ |
| public final class AvroMessageObserver extends MultiObserverImpl { |
| |
| private int number; |
| private String dataString; |
| |
| // Accessors |
| int getNumber() { |
| return number; |
| } |
| |
| String getDataString() { |
| return dataString; |
| } |
| |
| /** |
| * Processes protocol messages from the C# side of the bridge. |
| * @param identifier A long value which is the unique message identifier. |
| * @param message A reference to the received avro test message. |
| */ |
| public void onNext(final long identifier, final AvroTestMessage message) { |
| number = message.getNumber(); |
| dataString = message.getData().toString(); |
| } |
| } |
| } |