| /* |
| * 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; |
| |
| import org.apache.reef.wake.EStage; |
| import org.apache.reef.wake.EventHandler; |
| import org.apache.reef.wake.impl.PubSubEventHandler; |
| import org.apache.reef.wake.impl.ThreadPoolStage; |
| import org.apache.reef.wake.impl.TimerStage; |
| import org.apache.reef.wake.test.util.Monitor; |
| import org.apache.reef.wake.test.util.TimeoutHandler; |
| import org.junit.Assert; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.TestName; |
| |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| |
| /** |
| * Publish/subscribe event handler tests. |
| */ |
| public class PubSubThreadPoolStageTest { |
| |
| private static final String LOG_PREFIX = "TEST "; |
| @Rule |
| public TestName name = new TestName(); |
| |
| @Test |
| public void testPubSubThreadPoolStage() throws Exception { |
| System.out.println(LOG_PREFIX + name.getMethodName()); |
| |
| final Monitor monitor = new Monitor(); |
| final TimerStage timer = new TimerStage(new TimeoutHandler(monitor), 5000, 5000); |
| |
| final Set<TestEvent> procSet = Collections.synchronizedSet(new HashSet<TestEvent>()); |
| final Set<TestEvent> orgSet = Collections.synchronizedSet(new HashSet<TestEvent>()); |
| final int expected = 10; |
| |
| final PubSubEventHandler<TestEvent> handler = new PubSubEventHandler<>(); |
| handler.subscribe(TestEvent.class, new TestEventHandler("Handler1", monitor, procSet, expected)); |
| handler.subscribe(TestEvent.class, new TestEventHandler("Handler2", monitor, procSet, expected)); |
| |
| final EStage<TestEvent> stage = new ThreadPoolStage<>(handler, 10); |
| |
| for (int i = 0; i < expected; ++i) { |
| final TestEvent a = new TestEvent("aaa"); |
| orgSet.add(a); |
| |
| stage.onNext(a); |
| |
| if (i == 5) { |
| handler.subscribe(TestEvent.class, new TestEventHandler("Handler3", monitor, procSet, expected)); |
| } |
| } |
| |
| monitor.mwait(); |
| |
| stage.close(); |
| timer.close(); |
| |
| Assert.assertEquals(orgSet, procSet); |
| } |
| |
| class TestEvent { |
| private final String msg; |
| |
| TestEvent(final String msg) { |
| this.msg = msg; |
| } |
| |
| public String getMsg() { |
| return msg; |
| } |
| } |
| |
| class TestEventHandler implements EventHandler<TestEvent> { |
| |
| private final String name; |
| private final Monitor monitor; |
| private final Set<TestEvent> set; |
| private final int expected; |
| |
| TestEventHandler(final String name, final Monitor monitor, final Set<TestEvent> set, final int expected) { |
| this.name = name; |
| this.monitor = monitor; |
| this.set = set; |
| this.expected = expected; |
| } |
| |
| @Override |
| public void onNext(final TestEvent e) { |
| set.add(e); |
| System.out.println(name + " " + e + " " + e.getMsg()); |
| if (set.size() == expected) { |
| monitor.mnotify(); |
| } |
| } |
| } |
| |
| } |