/**
* 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 java.net.URI;
import java.util.Map;
import java.util.Vector;
import javax.jms.Connection;
import javax.jms.JMSException;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.CombinationTestSupport;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.TransportConnector;
import org.apache.activemq.command.DiscoveryEvent;
import org.apache.activemq.transport.StubCompositeTransport;
import org.apache.activemq.util.URISupport;
import org.apache.activemq.util.URISupport.CompositeData;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class DiscoveryTransportNoBrokerTest extends CombinationTestSupport {
private static final Logger LOG = LoggerFactory.getLogger(DiscoveryTransportNoBrokerTest.class);
@Override
public void setUp() throws Exception {
setAutoFail(true);
super.setUp();
}
public void testNoExtraThreads() throws Exception {
BrokerService broker = new BrokerService();
TransportConnector tcp = broker.addConnector("tcp://localhost:0?transport.closeAsync=false");
String group = "GR-" + System.currentTimeMillis();
URI discoveryUri = new URI("multicast://default?group=" + group);
tcp.setDiscoveryUri(discoveryUri);
broker.start();
broker.waitUntilStarted();
Vector<String> existingNames = new Vector<String>();
Thread[] threads = getThreads();
for (Thread t : threads) {
existingNames.add(t.getName());
}
final int idleThreadCount = threads.length;
LOG.info("Broker started - thread Count:" + idleThreadCount);
final int noConnectionToCreate = 10;
for (int i=0; i<10;i++) {
ActiveMQConnectionFactory factory =
new ActiveMQConnectionFactory("discovery:(multicast://239.255.2.3:6155?group=" + group +")?closeAsync=false");
LOG.info("Connecting.");
Connection connection = factory.createConnection();
connection.setClientID("test");
connection.close();
}
Thread.sleep(2000);
threads = getThreads();
for (Thread t : threads) {
if (!existingNames.contains(t.getName())) {
LOG.info("Remaining thread:" + t);
}
}
assertTrue("no extra threads per connection", Thread.activeCount() - idleThreadCount < noConnectionToCreate);
}
private Thread[] getThreads() {
Thread[] threads = new Thread[Thread.activeCount()];
Thread.enumerate(threads);
return threads;
}
public void testMaxReconnectAttempts() throws JMSException {
try {
ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory("discovery:(multicast://doesNOTexist)");
LOG.info("Connecting.");
Connection connection = factory.createConnection();
connection.setClientID("test");
fail("Did not fail to connect as expected.");
}
catch ( JMSException expected ) {
assertTrue("reason is java.io.IOException, was: " + expected.getCause(), expected.getCause() instanceof java.io.IOException);
}
}
public void testInitialConnectDelayWithNoBroker() throws Exception {
// the initialReconnectDelay only kicks in once a set of connect URL have
// been returned from the discovery agent.
// Up to that point the reconnectDelay is used which has a default value of 10
//
long initialReconnectDelay = 4000;
long startT = System.currentTimeMillis();
String groupId = "WillNotMatch" + startT;
try {
String urlStr = "discovery:(multicast://default?group=" + groupId +
")?useExponentialBackOff=false&maxReconnectAttempts=2&reconnectDelay=" + initialReconnectDelay;
ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory(urlStr);
LOG.info("Connecting.");
Connection connection = factory.createConnection();
connection.setClientID("test");
fail("Did not fail to connect as expected.");
} catch ( JMSException expected ) {
assertTrue("reason is java.io.IOException, was: " + expected.getCause(), expected.getCause() instanceof java.io.IOException);
long duration = System.currentTimeMillis() - startT;
assertTrue("took at least initialReconnectDelay time: " + duration + " e:" + expected, duration >= initialReconnectDelay);
}
}
public void testSetDiscoveredBrokerProperties() throws Exception {
final String extraParameterName = "connectionTimeout";
final String extraParameterValue = "3000";
final URI uri = new URI("discovery:(multicast://default)?initialReconnectDelay=100&"
+ DiscoveryListener.DISCOVERED_OPTION_PREFIX + extraParameterName + "=" + extraParameterValue);
CompositeData compositeData = URISupport.parseComposite(uri);
StubCompositeTransport compositeTransport = new StubCompositeTransport();
DiscoveryTransport discoveryTransport = DiscoveryTransportFactory.createTransport(compositeTransport, compositeData, compositeData.getParameters());
discoveryTransport.onServiceAdd(new DiscoveryEvent("tcp://localhost:61616"));
assertEquals("expected added URI after discovery event", compositeTransport.getTransportURIs().length, 1);
URI discoveredServiceURI = compositeTransport.getTransportURIs()[0];
Map<String, String> parameters = URISupport.parseParameters(discoveredServiceURI);
assertTrue("unable to add parameter to discovered service", parameters.containsKey(extraParameterName));
assertEquals("incorrect value for parameter added to discovered service", parameters.get(extraParameterName), extraParameterValue);
}
public void testSetDiscoveredStaticBrokerProperties() throws Exception {
final String extraParameterName = "connectionTimeout";
final String extraParameterValue = "3000";
final URI uri = new URI("discovery:(static:tcp://localhost:61616)?initialReconnectDelay=100&"
+ DiscoveryListener.DISCOVERED_OPTION_PREFIX + extraParameterName + "=" + extraParameterValue);
CompositeData compositeData = URISupport.parseComposite(uri);
StubCompositeTransport compositeTransport = new StubCompositeTransport();
DiscoveryTransport discoveryTransport = DiscoveryTransportFactory.createTransport(compositeTransport, compositeData, compositeData.getParameters());
discoveryTransport.start();
assertEquals("expected added URI after discovery event", 1, compositeTransport.getTransportURIs().length);
URI discoveredServiceURI = compositeTransport.getTransportURIs()[0];
Map<String, String> parameters = URISupport.parseParameters(discoveredServiceURI);
assertTrue("unable to add parameter to discovered service", parameters.containsKey(extraParameterName));
assertEquals("incorrect value for parameter added to discovered service", parameters.get(extraParameterName), extraParameterValue);
}
public void testAddRemoveDiscoveredBroker() throws Exception {
final URI uri = new URI("discovery:(multicast://default)?initialReconnectDelay=100&connectionTimeout=3000");
CompositeData compositeData = URISupport.parseComposite(uri);
StubCompositeTransport compositeTransport = new StubCompositeTransport();
DiscoveryTransport discoveryTransport = DiscoveryTransportFactory.createTransport(compositeTransport, compositeData, compositeData.getParameters());
final String serviceName = "tcp://localhost:61616";
discoveryTransport.onServiceAdd(new DiscoveryEvent(serviceName));
assertEquals("expected added URI after discovery event", 1, compositeTransport.getTransportURIs().length);
discoveryTransport.onServiceRemove(new DiscoveryEvent(serviceName));
assertEquals("expected URI removed after discovery event", 0, compositeTransport.getTransportURIs().length);
}
}