| /* |
| * 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.samza.task; |
| |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.TimeUnit; |
| import org.apache.samza.context.Context; |
| import org.apache.samza.system.IncomingMessageEnvelope; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import static org.junit.Assert.assertTrue; |
| import static org.mockito.Mockito.mock; |
| |
| |
| public class TestAsyncStreamAdapter { |
| TestStreamTask task; |
| AsyncStreamTaskAdapter taskAdaptor; |
| Exception e; |
| IncomingMessageEnvelope envelope; |
| |
| class TestCallbackListener implements TaskCallbackListener { |
| boolean callbackComplete = false; |
| boolean callbackFailure = false; |
| |
| @Override |
| public void onComplete(TaskCallback callback) { |
| callbackComplete = true; |
| } |
| |
| @Override |
| public void onFailure(TaskCallback callback, Throwable t) { |
| callbackFailure = true; |
| } |
| } |
| |
| class TestStreamTask implements StreamTask, InitableTask, ClosableTask, WindowableTask { |
| boolean inited = false; |
| boolean closed = false; |
| boolean processed = false; |
| boolean windowed = false; |
| |
| @Override |
| public void close() throws Exception { |
| closed = true; |
| } |
| |
| @Override |
| public void init(Context context) throws Exception { |
| inited = true; |
| } |
| |
| @Override |
| public void process(IncomingMessageEnvelope envelope, MessageCollector collector, TaskCoordinator coordinator) throws Exception { |
| processed = true; |
| if (e != null) { |
| throw e; |
| } |
| } |
| |
| @Override |
| public void window(MessageCollector collector, TaskCoordinator coordinator) throws Exception { |
| windowed = true; |
| } |
| } |
| |
| @Before |
| public void setup() { |
| task = new TestStreamTask(); |
| e = null; |
| envelope = mock(IncomingMessageEnvelope.class); |
| } |
| |
| @Test |
| public void testAdapterWithoutThreadPool() throws Exception { |
| taskAdaptor = new AsyncStreamTaskAdapter(task, null); |
| TestCallbackListener listener = new TestCallbackListener(); |
| TaskCallback callback = new TaskCallbackImpl(listener, null, envelope, null, 0L, 0L); |
| |
| taskAdaptor.init(null); |
| assertTrue(task.inited); |
| |
| taskAdaptor.processAsync(null, null, null, callback); |
| assertTrue(task.processed); |
| assertTrue(listener.callbackComplete); |
| |
| e = new Exception("dummy exception"); |
| taskAdaptor.processAsync(null, null, null, callback); |
| assertTrue(listener.callbackFailure); |
| |
| taskAdaptor.window(null, null); |
| assertTrue(task.windowed); |
| |
| taskAdaptor.close(); |
| assertTrue(task.closed); |
| } |
| |
| @Test |
| public void testAdapterWithThreadPool() throws Exception { |
| TestCallbackListener listener1 = new TestCallbackListener(); |
| TaskCallback callback1 = new TaskCallbackImpl(listener1, null, envelope, null, 0L, 0L); |
| |
| TestCallbackListener listener2 = new TestCallbackListener(); |
| TaskCallback callback2 = new TaskCallbackImpl(listener2, null, envelope, null, 1L, 0L); |
| |
| ExecutorService executor = Executors.newFixedThreadPool(2); |
| taskAdaptor = new AsyncStreamTaskAdapter(task, executor); |
| taskAdaptor.processAsync(null, null, null, callback1); |
| taskAdaptor.processAsync(null, null, null, callback2); |
| |
| executor.awaitTermination(1, TimeUnit.SECONDS); |
| assertTrue(listener1.callbackComplete); |
| assertTrue(listener2.callbackComplete); |
| |
| e = new Exception("dummy exception"); |
| taskAdaptor.processAsync(null, null, null, callback1); |
| taskAdaptor.processAsync(null, null, null, callback2); |
| |
| executor.awaitTermination(1, TimeUnit.SECONDS); |
| assertTrue(listener1.callbackFailure); |
| assertTrue(listener2.callbackFailure); |
| } |
| } |