/*
* Copyright 2009-2017 the original author or authors.
*
* Licensed 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.springframework.integration.monitor;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.hamcrest.Matchers;
import org.junit.Test;
import org.springframework.beans.factory.config.AutowireCapableBeanFactory;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.integration.channel.ChannelInterceptorAware;
import org.springframework.integration.channel.interceptor.WireTap;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageChannel;
import org.springframework.messaging.MessageHandlingException;
import org.springframework.messaging.support.ChannelInterceptor;
import org.springframework.messaging.support.GenericMessage;
/**
* @author Dave Syer
* @author Gary Russell
* @author Artem Bilan
*
*/
public class MessageChannelsMonitorIntegrationTests {
private static Log logger = LogFactory.getLog(MessageChannelsMonitorIntegrationTests.class);
private MessageChannel channel;
private Service service;
private IntegrationMBeanExporter messageChannelsMonitor;
public void setMessageHandlersMonitor(IntegrationMBeanExporter messageChannelsMonitor) {
this.messageChannelsMonitor = messageChannelsMonitor;
}
public void setService(Service service) {
this.service = service;
}
@Test
public void testSendWithAnonymousHandler() throws Exception {
doTest("anonymous-channel.xml", "anonymous");
}
@Test
public void testSendWithProxiedChannel() throws Exception {
doTest("proxy-channel.xml", "anonymous");
}
@Test
public void testRates() throws Exception {
ClassPathXmlApplicationContext context = createContext("anonymous-channel.xml", "anonymous");
try {
int before = service.getCounter();
CountDownLatch latch = new CountDownLatch(50);
service.setLatch(latch);
for (int i = 0; i < 50; i++) {
channel.send(new GenericMessage<String>("bar"));
Thread.sleep(20L);
}
assertTrue(latch.await(10, TimeUnit.SECONDS));
assertEquals(before + 50, service.getCounter());
// The handler monitor is registered under the endpoint id (since it is explicit)
int sends = messageChannelsMonitor.getChannelSendRate("" + channel).getCount();
assertEquals("No send statistics for input channel", 50, sends, 0.01);
long sendsLong = messageChannelsMonitor.getChannelSendRate("" + channel).getCountLong();
assertEquals("No send statistics for input channel", sendsLong, sends, 0.01);
}
finally {
context.close();
}
}
@Test
public void testErrors() throws Exception {
ClassPathXmlApplicationContext context = createContext("anonymous-channel.xml", "anonymous");
try {
int before = service.getCounter();
CountDownLatch latch = new CountDownLatch(10);
service.setLatch(latch);
for (int i = 0; i < 5; i++) {
channel.send(new GenericMessage<String>("bar"));
Thread.sleep(20L);
}
try {
channel.send(new GenericMessage<String>("fail"));
}
catch (MessageHandlingException e) {
// ignore
}
for (int i = 0; i < 5; i++) {
channel.send(new GenericMessage<String>("bar"));
Thread.sleep(20L);
}
assertTrue(latch.await(10, TimeUnit.SECONDS));
assertEquals(before + 10, service.getCounter());
// The handler monitor is registered under the endpoint id (since it is explicit)
int sends = messageChannelsMonitor.getChannelSendRate("" + channel).getCount();
assertEquals("No send statistics for input channel", 11, sends, 0.01);
int errors = messageChannelsMonitor.getChannelErrorRate("" + channel).getCount();
assertEquals("No error statistics for input channel", 1, errors, 0.01);
}
finally {
context.close();
}
}
@Test
public void testQueues() throws Exception {
ClassPathXmlApplicationContext context = createContext("queue-channel.xml", "queue");
try {
int before = service.getCounter();
CountDownLatch latch = new CountDownLatch(10);
service.setLatch(latch);
for (int i = 0; i < 5; i++) {
channel.send(new GenericMessage<String>("bar"));
Thread.sleep(20L);
}
try {
channel.send(new GenericMessage<String>("fail"));
}
catch (MessageHandlingException e) {
// ignore
}
for (int i = 0; i < 5; i++) {
channel.send(new GenericMessage<String>("bar"));
Thread.sleep(20L);
}
assertTrue(latch.await(10, TimeUnit.SECONDS));
assertEquals(before + 10, service.getCounter());
// The handler monitor is registered under the endpoint id (since it is explicit)
int sends = messageChannelsMonitor.getChannelSendRate("" + channel).getCount();
assertEquals("No send statistics for input channel", 11, sends);
int receives = messageChannelsMonitor.getChannelReceiveCount("" + channel);
assertEquals("No send statistics for input channel", 11, receives);
int errors = messageChannelsMonitor.getChannelErrorRate("" + channel).getCount();
assertEquals("Expect no errors for input channel (handler fails)", 0, errors);
}
finally {
context.close();
}
}
private void doTest(String config, String channelName) throws Exception {
ClassPathXmlApplicationContext context = createContext(config, channelName);
try {
int before = service.getCounter();
CountDownLatch latch = new CountDownLatch(1);
service.setLatch(latch);
channel.send(new GenericMessage<String>("bar"));
assertTrue(latch.await(10, TimeUnit.SECONDS));
assertEquals(before + 1, service.getCounter());
// The handler monitor is registered under the endpoint id (since it is explicit)
int sends = messageChannelsMonitor.getChannelSendRate("" + channel).getCount();
assertEquals("No statistics for input channel", 1, sends, 0.01);
assertThat(channel, Matchers.instanceOf(ChannelInterceptorAware.class));
List<ChannelInterceptor> channelInterceptors = ((ChannelInterceptorAware) channel).getChannelInterceptors();
assertEquals(1, channelInterceptors.size());
assertThat(channelInterceptors.get(0), Matchers.instanceOf(WireTap.class));
}
finally {
context.close();
}
}
private ClassPathXmlApplicationContext createContext(String config, String channelName) {
ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(config, getClass());
context.getAutowireCapableBeanFactory().autowireBeanProperties(this,
AutowireCapableBeanFactory.AUTOWIRE_BY_TYPE, false);
channel = context.getBean(channelName, MessageChannel.class);
return context;
}
public static class Service {
private int counter;
private volatile CountDownLatch latch;
public void setLatch(CountDownLatch latch) {
this.latch = latch;
}
public void execute(String input) {
if ("fail".equals(input)) {
throw new RuntimeException("Planned");
}
counter++;
latch.countDown();
}
public int getCounter() {
return counter;
}
}
@Aspect
public static class TestChannelInterceptor {
@Before("execution(* *..MessageChannel+.send(*)) && args(input)")
public void around(Message<?> input) {
logger.debug("Handling: " + input);
}
}
}