/**
* 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.activemq.transport.discovery;
import static org.junit.Assert.assertTrue;
import java.net.URI;
import java.util.concurrent.Semaphore;
import java.util.concurrent.TimeUnit;
import javax.management.ObjectInstance;
import javax.management.ObjectName;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.jmx.ManagementContext;
import org.apache.activemq.transport.discovery.multicast.MulticastDiscoveryAgentFactory;
import org.apache.activemq.util.SocketProxy;
import org.apache.activemq.util.Wait;
import org.hamcrest.BaseMatcher;
import org.hamcrest.Description;
import org.jmock.Expectations;
import org.jmock.Mockery;
import org.jmock.api.Invocation;
import org.jmock.integration.junit4.JMock;
import org.jmock.integration.junit4.JUnit4Mockery;
import org.jmock.lib.action.CustomAction;
import org.jmock.lib.legacy.ClassImposteriser;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@RunWith(JMock.class)
public class DiscoveryNetworkReconnectTest {
private static final Logger LOG = LoggerFactory.getLogger(DiscoveryNetworkReconnectTest.class);
final int maxReconnects = 2;
final String groupName = "GroupID-" + "DiscoveryNetworkReconnectTest";
final String discoveryAddress = "multicast://default?group=" + groupName + "&initialReconnectDelay=1000";
final Semaphore mbeanRegistered = new Semaphore(0);
final Semaphore mbeanUnregistered = new Semaphore(0);
BrokerService brokerA, brokerB;
Mockery context;
ManagementContext managementContext;
DiscoveryAgent agent;
SocketProxy proxy;
// ignore the hostname resolution component as this is machine dependent
class NetworkBridgeObjectNameMatcher<T> extends BaseMatcher<T> {
T name;
NetworkBridgeObjectNameMatcher(T o) {
name = o;
}
@Override
public boolean matches(Object arg0) {
ObjectName other = (ObjectName) arg0;
ObjectName mine = (ObjectName) name;
LOG.info("Match: " + mine + " vs: " + other);
if (!"networkConnectors".equals(other.getKeyProperty("connector"))) {
return false;
}
return other.getKeyProperty("connector").equals(mine.getKeyProperty("connector")) &&
other.getKeyProperty("networkBridge") != null && mine.getKeyProperty("networkBridge") != null;
}
@Override
public void describeTo(Description arg0) {
arg0.appendText(this.getClass().getName());
}
}
@Before
public void setUp() throws Exception {
context = new JUnit4Mockery() {{
setImposteriser(ClassImposteriser.INSTANCE);
}};
brokerA = new BrokerService();
brokerA.setBrokerName("BrokerA");
configure(brokerA);
brokerA.addConnector("tcp://localhost:0");
brokerA.start();
brokerA.waitUntilStarted();
proxy = new SocketProxy(brokerA.getTransportConnectors().get(0).getConnectUri());
managementContext = context.mock(ManagementContext.class);
context.checking(new Expectations(){{
allowing(managementContext).getJmxDomainName(); will (returnValue("Test"));
allowing(managementContext).setBrokerName("BrokerNC");
allowing(managementContext).start();
allowing(managementContext).isCreateConnector();
allowing(managementContext).stop();
allowing(managementContext).isConnectorStarted();
// expected MBeans
allowing(managementContext).registerMBean(with(any(Object.class)), with(equal(
new ObjectName("Test:type=Broker,brokerName=BrokerNC"))));
allowing(managementContext).registerMBean(with(any(Object.class)), with(equal(
new ObjectName("Test:type=Broker,brokerName=BrokerNC,service=Health"))));
allowing(managementContext).registerMBean(with(any(Object.class)), with(equal(
new ObjectName("Test:type=Broker,brokerName=BrokerNC,connector=networkConnectors,networkConnectorName=NC"))));
allowing(managementContext).registerMBean(with(any(Object.class)), with(equal(
new ObjectName("Test:type=Broker,brokerName=BrokerNC,destinationType=Topic,destinationName=ActiveMQ.Advisory.Connection"))));
allowing(managementContext).registerMBean(with(any(Object.class)), with(equal(
new ObjectName("Test:type=Broker,brokerName=BrokerNC,destinationType=Topic,destinationName=ActiveMQ.Advisory.NetworkBridge"))));
allowing(managementContext).registerMBean(with(any(Object.class)), with(equal(
new ObjectName("Test:type=Broker,brokerName=BrokerNC,destinationType=Topic,destinationName=ActiveMQ.Advisory.MasterBroker"))));
allowing(managementContext).registerMBean(with(any(Object.class)), with(equal(
new ObjectName("Test:type=Broker,brokerName=BrokerNC,service=jobScheduler,jobSchedulerName=JMS"))));
atLeast(maxReconnects - 1).of (managementContext).registerMBean(with(any(Object.class)), with(new NetworkBridgeObjectNameMatcher<ObjectName>(
new ObjectName("Test:type=Broker,brokerName=BrokerNC,connector=networkConnectors,networkConnectorName=NC,networkBridge=localhost/127.0.0.1_"
+ proxy.getUrl().getPort())))); will(new CustomAction("signal register network mbean") {
@Override
public Object invoke(Invocation invocation) throws Throwable {
LOG.info("Mbean Registered: " + invocation.getParameter(0));
mbeanRegistered.release();
return new ObjectInstance((ObjectName)invocation.getParameter(1), "discription");
}
});
atLeast(maxReconnects - 1).of (managementContext).unregisterMBean(with(new NetworkBridgeObjectNameMatcher<ObjectName>(
new ObjectName("Test:type=Broker,brokerName=BrokerNC,connector=networkConnectors,networkConnectorName=NC,networkBridge=localhost/127.0.0.1_"
+ proxy.getUrl().getPort())))); will(new CustomAction("signal unregister network mbean") {
@Override
public Object invoke(Invocation invocation) throws Throwable {
LOG.info("Mbean Unregistered: " + invocation.getParameter(0));
mbeanUnregistered.release();
return null;
}
});
allowing(managementContext).unregisterMBean(with(equal(
new ObjectName("Test:type=Broker,brokerName=BrokerNC"))));
allowing(managementContext).unregisterMBean(with(equal(
new ObjectName("Test:type=Broker,brokerName=BrokerNC,service=Health"))));
allowing(managementContext).unregisterMBean(with(equal(
new ObjectName("Test:type=Broker,brokerName=BrokerNC,connector=networkConnectors,networkConnectorName=NC"))));
allowing(managementContext).unregisterMBean(with(equal(
new ObjectName("Test:type=Broker,brokerName=BrokerNC,destinationType=Topic,destinationName=ActiveMQ.Advisory.Connection"))));
allowing(managementContext).unregisterMBean(with(equal(
new ObjectName("Test:type=Broker,brokerName=BrokerNC,destinationType=Topic,destinationName=ActiveMQ.Advisory.NetworkBridge"))));
allowing(managementContext).unregisterMBean(with(equal(
new ObjectName("Test:type=Broker,brokerName=BrokerNC,destinationType=Topic,destinationName=ActiveMQ.Advisory.MasterBroker"))));
}});
brokerB = new BrokerService();
brokerB.setManagementContext(managementContext);
brokerB.setBrokerName("BrokerNC");
configure(brokerB);
}
@After
public void tearDown() throws Exception {
brokerA.stop();
brokerA.waitUntilStopped();
brokerB.stop();
brokerB.waitUntilStopped();
proxy.close();
}
private void configure(BrokerService broker) {
broker.setPersistent(false);
broker.setUseJmx(true);
}
@Test
public void testMulicastReconnect() throws Exception {
brokerB.addNetworkConnector(discoveryAddress + "&discovered.trace=true&discovered.wireFormat.maxInactivityDuration=1000&discovered.wireFormat.maxInactivityDurationInitalDelay=1000");
brokerB.start();
brokerB.waitUntilStarted();
// control multicast advertise agent to inject proxy
agent = MulticastDiscoveryAgentFactory.createDiscoveryAgent(new URI(discoveryAddress));
agent.registerService(proxy.getUrl().toString());
agent.start();
doReconnect();
}
@Test
public void testSimpleReconnect() throws Exception {
brokerB.addNetworkConnector("simple://(" + proxy.getUrl()
+ ")?useExponentialBackOff=false&initialReconnectDelay=500&discovered.wireFormat.maxInactivityDuration=1000&discovered.wireFormat.maxInactivityDurationInitalDelay=1000");
brokerB.start();
brokerB.waitUntilStarted();
doReconnect();
}
private void doReconnect() throws Exception {
for (int i=0; i<maxReconnects; i++) {
// Wait for connection
assertTrue("we got a network connection in a timely manner", Wait.waitFor(new Wait.Condition() {
@Override
public boolean isSatisified() throws Exception {
return proxy.connections.size() >= 1;
}
}));
// wait for network connector
assertTrue("network connector mbean registered within 1 minute", mbeanRegistered.tryAcquire(60, TimeUnit.SECONDS));
// force an inactivity timeout via the proxy
proxy.pause();
// wait for the inactivity timeout and network shutdown
assertTrue("network connector mbean unregistered within 1 minute", mbeanUnregistered.tryAcquire(60, TimeUnit.SECONDS));
// whack all connections
proxy.close();
// let a reconnect succeed
proxy.reopen();
}
}
}