INT-1411 added tests for AsyncMessagingTemplate
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Mark Fisher
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/*
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* Copyright 2002-2010 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.springframework.integration.core;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertNotNull;
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import static org.junit.Assert.assertTrue;
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import static org.junit.Assert.fail;
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import java.util.concurrent.ExecutionException;
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import java.util.concurrent.Future;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.TimeoutException;
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import org.junit.Test;
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import org.springframework.context.support.StaticApplicationContext;
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import org.springframework.integration.Message;
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import org.springframework.integration.MessagingException;
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import org.springframework.integration.channel.DirectChannel;
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import org.springframework.integration.handler.AbstractReplyProducingMessageHandler;
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import org.springframework.integration.support.MessageBuilder;
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/**
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* @author Mark Fisher
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* @since 2.0
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*/
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public class AsyncMessagingTemplateTests {
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@Test
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public void asyncSendAndReceiveWithDefaultChannel() throws Exception {
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DirectChannel channel = new DirectChannel();
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channel.subscribe(new EchoHandler(200));
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AsyncMessagingTemplate template = new AsyncMessagingTemplate();
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template.setDefaultChannel(channel);
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long start = System.currentTimeMillis();
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Future<Message<?>> result = template.asyncSendAndReceive(MessageBuilder.withPayload("test").build());
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assertNotNull(result.get());
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long elapsed = System.currentTimeMillis() - start;
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assertTrue(elapsed >= 200);
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}
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@Test
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public void asyncSendAndReceiveWithExplicitChannel() throws Exception {
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DirectChannel channel = new DirectChannel();
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channel.subscribe(new EchoHandler(200));
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AsyncMessagingTemplate template = new AsyncMessagingTemplate();
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long start = System.currentTimeMillis();
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Future<Message<?>> result = template.asyncSendAndReceive(channel, MessageBuilder.withPayload("test").build());
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assertNotNull(result.get());
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long elapsed = System.currentTimeMillis() - start;
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assertTrue(elapsed >= 200);
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assertEquals("TEST", result.get().getPayload());
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}
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@Test
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public void asyncSendAndReceiveWithResolvedChannel() throws Exception {
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StaticApplicationContext context = new StaticApplicationContext();
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context.registerSingleton("testChannel", DirectChannel.class);
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context.refresh();
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DirectChannel channel = context.getBean("testChannel", DirectChannel.class);
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channel.subscribe(new EchoHandler(200));
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AsyncMessagingTemplate template = new AsyncMessagingTemplate();
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template.setBeanFactory(context);
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long start = System.currentTimeMillis();
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Future<Message<?>> result = template.asyncSendAndReceive("testChannel", MessageBuilder.withPayload("test").build());
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assertNotNull(result.get());
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long elapsed = System.currentTimeMillis() - start;
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assertTrue(elapsed >= 200);
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assertEquals("TEST", result.get().getPayload());
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}
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@Test
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public void asyncConvertSendAndReceiveWithDefaultChannel() throws Exception {
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DirectChannel channel = new DirectChannel();
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channel.subscribe(new EchoHandler(200));
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AsyncMessagingTemplate template = new AsyncMessagingTemplate();
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template.setDefaultChannel(channel);
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long start = System.currentTimeMillis();
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Future<String> result = template.asyncConvertSendAndReceive("test");
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assertNotNull(result.get());
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long elapsed = System.currentTimeMillis() - start;
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assertTrue(elapsed >= 200);
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assertEquals("TEST", result.get());
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}
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@Test
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public void asyncConvertSendAndReceiveWithExplicitChannel() throws Exception {
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DirectChannel channel = new DirectChannel();
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channel.subscribe(new EchoHandler(200));
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AsyncMessagingTemplate template = new AsyncMessagingTemplate();
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long start = System.currentTimeMillis();
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Future<String> result = template.asyncConvertSendAndReceive(channel, "test");
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assertNotNull(result.get());
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long elapsed = System.currentTimeMillis() - start;
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assertTrue(elapsed >= 200);
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assertEquals("TEST", result.get());
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}
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@Test
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public void asyncConvertSendAndReceiveWithResolvedChannel() throws Exception {
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StaticApplicationContext context = new StaticApplicationContext();
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context.registerSingleton("testChannel", DirectChannel.class);
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context.refresh();
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DirectChannel channel = context.getBean("testChannel", DirectChannel.class);
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channel.subscribe(new EchoHandler(200));
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AsyncMessagingTemplate template = new AsyncMessagingTemplate();
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template.setBeanFactory(context);
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long start = System.currentTimeMillis();
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Future<String> result = template.asyncConvertSendAndReceive("testChannel", "test");
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assertNotNull(result.get());
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long elapsed = System.currentTimeMillis() - start;
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assertTrue(elapsed >= 200);
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assertEquals("TEST", result.get());
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}
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@Test(expected = TimeoutException.class)
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public void timeoutException() throws Exception {
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DirectChannel channel = new DirectChannel();
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channel.subscribe(new EchoHandler(200));
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AsyncMessagingTemplate template = new AsyncMessagingTemplate();
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template.setDefaultChannel(channel);
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Future<Message<?>> result = template.asyncSendAndReceive(MessageBuilder.withPayload("test").build());
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result.get(10, TimeUnit.MILLISECONDS);
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}
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@Test(expected = MessagingException.class)
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public void executionException() throws Throwable {
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DirectChannel channel = new DirectChannel();
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channel.subscribe(new EchoHandler(-1));
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AsyncMessagingTemplate template = new AsyncMessagingTemplate();
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template.setDefaultChannel(channel);
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Future<Message<?>> result = template.asyncSendAndReceive(MessageBuilder.withPayload("test").build());
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try {
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result.get(10, TimeUnit.MILLISECONDS);
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fail();
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}
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catch (ExecutionException e) {
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throw e.getCause();
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}
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}
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private static class EchoHandler extends AbstractReplyProducingMessageHandler {
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private final long delay;
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private final boolean shouldFail;
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private EchoHandler(long delay) {
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this.delay = delay;
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this.shouldFail = (this.delay < 0);
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}
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@Override
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protected Object handleRequestMessage(Message<?> requestMessage) {
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if (this.shouldFail) {
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throw new MessagingException("intentional test failure in " + AsyncMessagingTemplateTests.class.getName());
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}
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try {
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Thread.sleep(this.delay);
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}
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catch (InterruptedException e) {
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// ignore
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}
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return requestMessage.getPayload().toString().toUpperCase();
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}
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}
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}
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