| /** |
| * 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.usecases; |
| |
| import org.apache.activemq.ActiveMQConnectionFactory; |
| import org.apache.activemq.broker.BrokerService; |
| import org.apache.activemq.broker.region.Topic; |
| import org.apache.activemq.broker.region.policy.PolicyEntry; |
| import org.apache.activemq.broker.region.policy.PolicyMap; |
| import org.apache.activemq.command.ActiveMQTopic; |
| import org.apache.activemq.network.DiscoveryNetworkConnector; |
| import org.apache.activemq.network.NetworkConnector; |
| import org.junit.After; |
| import org.junit.Test; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import javax.jms.*; |
| import java.net.URI; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.LinkedList; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| // demonstrate the use of conduit=true/false on a network bridge for topics with selectors |
| // note selectors are ignored when conduit=true |
| public class TopicBridgeSelectorConduitOnOff { |
| private static final Logger LOG = LoggerFactory.getLogger(TopicBridgeSelectorConduitOnOff.class); |
| |
| BrokerService brokerA,brokerB; |
| final int numProducers = 20; |
| final int numConsumers = 20; |
| final int numberOfMessagesToSendPerProducer = 5000; |
| final ActiveMQTopic destination = new ActiveMQTopic("TOPIC"); |
| |
| |
| |
| @After |
| public void stopBrokers() throws Exception { |
| brokerA.stop(); |
| brokerB.stop(); |
| } |
| |
| @Test |
| public void testForwardsWithConduitSubsTrue() throws Exception { |
| doTestWithConduit(true); |
| } |
| |
| @Test |
| public void testForwardsWithConduitSubsFalse() throws Exception { |
| doTestWithConduit(false); |
| } |
| |
| private void doTestWithConduit(boolean conduitPlease) throws Exception { |
| |
| brokerA = newBroker("A"); |
| brokerB = newBroker("B"); |
| brokerB.start(); |
| |
| // bridge |
| NetworkConnector networkConnector = bridgeBrokers(brokerA, brokerB, conduitPlease); |
| brokerA.start(); |
| |
| |
| // wait for bridge creation |
| while (networkConnector.activeBridges().size() == 0) { |
| LOG.info("num bridges: " + networkConnector.activeBridges()); |
| TimeUnit.SECONDS.sleep(1); |
| } |
| |
| |
| // a given consumer selects half the messages |
| CountDownLatch allReceived = new CountDownLatch(numConsumers/2 * (numberOfMessagesToSendPerProducer *numProducers)); |
| |
| final ActiveMQConnectionFactory localConnectionFactoryForProducers = new ActiveMQConnectionFactory(brokerA.getTransportConnectorByScheme("tcp").getPublishableConnectString() |
| + "?jms.watchTopicAdvisories=false"); |
| |
| final ActiveMQConnectionFactory remoteConnectionFactoryForConsumers = new ActiveMQConnectionFactory(brokerB.getTransportConnectorByScheme("tcp").getPublishableConnectString() |
| + "?jms.watchTopicAdvisories=false"); |
| |
| ExecutorService consumersExecutor = Executors.newFixedThreadPool(numConsumers); |
| |
| final AtomicInteger receivedCount = new AtomicInteger(0); |
| final Collection<Connection> connections = Collections.synchronizedList(new LinkedList<Connection>()); |
| final CountDownLatch consumersRegistered = new CountDownLatch(numConsumers); |
| for (int i=0; i<numConsumers; i++) { |
| final int id = i; |
| consumersExecutor.execute(new Runnable() { |
| @Override |
| public void run() { |
| try { |
| Connection connection = remoteConnectionFactoryForConsumers.createConnection(); |
| connection.start(); |
| Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| |
| MessageConsumer consumerWithSelector = session.createConsumer(destination, (id%2==0 ? "COLOUR = 'RED'" : "COLOUR = 'BLUE'")); |
| consumerWithSelector.setMessageListener(new MessageListener() { |
| @Override |
| public void onMessage(Message message) { |
| int messageCount = receivedCount.incrementAndGet(); |
| allReceived.countDown(); |
| if (messageCount % 20000 == 0) { |
| try { |
| LOG.info("Consumer id: " + id + ", message COLOUR:" + message.getStringProperty("COLOUR")); |
| } catch (JMSException e) { |
| e.printStackTrace(); |
| } |
| } |
| } |
| }); |
| connections.add(connection); |
| consumersRegistered.countDown(); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| } |
| }); |
| } |
| |
| |
| // need to be sure all subs are active before we publish to have some guaentee of stats |
| consumersRegistered.await(20, TimeUnit.SECONDS); |
| |
| // would really need to verify on the local broker... |
| // lets do that |
| Topic topic = (Topic) brokerA.getDestination(destination); |
| LOG.info("Num consumers: " + topic.getConsumers().size()); |
| |
| while (topic.getConsumers().size() != (conduitPlease ? 1 : numConsumers)) { |
| LOG.info("Num consumers: " + topic.getConsumers().size()); |
| TimeUnit.SECONDS.sleep(1); |
| } |
| |
| ExecutorService producersExecutor = Executors.newFixedThreadPool(numProducers); |
| for (int i=0; i<numProducers; i++) { |
| producersExecutor.execute(new Runnable() { |
| @Override |
| public void run() { |
| try { |
| Connection connection = localConnectionFactoryForProducers.createConnection(); |
| connection.start(); |
| Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| |
| MessageProducer producer = session.createProducer(destination); |
| producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT); |
| |
| for (int id = 0; id < numberOfMessagesToSendPerProducer; id++) { |
| final BytesMessage message = session.createBytesMessage(); |
| message.setStringProperty("COLOUR", id % 2 == 0 ? "RED" : "BLUE"); |
| producer.send(message); |
| } |
| connection.close(); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| } |
| }); |
| } |
| |
| producersExecutor.shutdown(); |
| producersExecutor.awaitTermination(5, TimeUnit.MINUTES); |
| |
| final long start = System.currentTimeMillis(); |
| |
| // wait for all messages to get delivered to the consumers |
| // a given consumer selects half the messages |
| allReceived.await(5, TimeUnit.MINUTES); |
| |
| LOG.info("Duration to Receive after producers complete: " + (System.currentTimeMillis() - start) + "ms"); |
| |
| LOG.info("Topic enqueues: " + topic.getDestinationStatistics().getEnqueues().getCount() + ", Total received: " + receivedCount.get() + ", forwards: " + topic.getDestinationStatistics().getForwards().getCount()); |
| |
| TimeUnit.SECONDS.sleep(10); |
| LOG.info("Topic enqueues: " + topic.getDestinationStatistics().getEnqueues().getCount() + ", Total received: " + receivedCount.get() + ", forwards: " + topic.getDestinationStatistics().getForwards().getCount()); |
| |
| |
| for (Connection connection: connections) { |
| try { |
| connection.close(); |
| } catch (Exception ignored) {} |
| } |
| consumersExecutor.shutdown(); |
| consumersExecutor.awaitTermination(5, TimeUnit.MINUTES); |
| } |
| |
| |
| private BrokerService newBroker(String name) throws Exception { |
| BrokerService brokerService = new BrokerService(); |
| brokerService.setPersistent(false); |
| brokerService.setUseJmx(false); |
| brokerService.setBrokerName(name); |
| brokerService.addConnector("tcp://0.0.0.0:0"); |
| |
| PolicyMap map = new PolicyMap(); |
| PolicyEntry defaultEntry = new PolicyEntry(); |
| defaultEntry.setExpireMessagesPeriod(0); |
| // the audit defaults to 1k producers and lk messages, but those casn be configured via policy |
| defaultEntry.setEnableAudit(true); // default is true only if there is a policy entry in force, otherwise the sub accepts the duplicates |
| map.setDefaultEntry(defaultEntry); |
| brokerService.setDestinationPolicy(map); |
| return brokerService; |
| } |
| |
| |
| protected NetworkConnector bridgeBrokers(BrokerService localBroker, BrokerService remoteBroker, boolean conduitPlease) throws Exception { |
| |
| String uri = "static:(" + remoteBroker.getTransportConnectorByScheme("tcp").getPublishableConnectString() + ")"; |
| |
| NetworkConnector connector = new DiscoveryNetworkConnector(new URI(uri)); |
| connector.setName(localBroker.getBrokerName() + "-to-" + remoteBroker.getBrokerName()); |
| connector.setConduitSubscriptions(conduitPlease); |
| |
| localBroker.addNetworkConnector(connector); |
| |
| LOG.info("Bridging with conduit subs:" + conduitPlease); |
| return connector; |
| } |
| } |