no jira - usecase demonstrating effect of conduit=true|false for topic subs
diff --git a/activemq-unit-tests/src/test/java/org/apache/activemq/usecases/TopicBridgeSelectorConduitOnOff.java b/activemq-unit-tests/src/test/java/org/apache/activemq/usecases/TopicBridgeSelectorConduitOnOff.java
new file mode 100644
index 0000000..b5d936b
--- /dev/null
+++ b/activemq-unit-tests/src/test/java/org/apache/activemq/usecases/TopicBridgeSelectorConduitOnOff.java
@@ -0,0 +1,236 @@
+/**
+ * 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;
+ }
+}
\ No newline at end of file
