| /** |
| * 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 |
| * <p> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p> |
| * 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.ActiveMQConnection; |
| import org.apache.activemq.ActiveMQConnectionFactory; |
| import org.apache.activemq.broker.BrokerService; |
| import org.apache.activemq.broker.region.cursors.AbstractStoreCursor; |
| 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.util.DefaultTestAppender; |
| import org.apache.log4j.Appender; |
| import org.apache.log4j.Level; |
| import org.apache.log4j.spi.LoggingEvent; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import javax.jms.Connection; |
| import javax.jms.MessageProducer; |
| import javax.jms.Session; |
| import javax.jms.TextMessage; |
| import javax.jms.TopicSubscriber; |
| |
| import java.util.concurrent.atomic.AtomicBoolean; |
| |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.fail; |
| |
| public class DurableSubCacheTest { |
| private static final Logger LOG = LoggerFactory.getLogger(DurableSubCacheTest.class); |
| |
| |
| private final ActiveMQTopic topic = new ActiveMQTopic("T1"); |
| private BrokerService broker; |
| |
| @Before |
| public void setUp() throws Exception { |
| |
| broker = createAndStartBroker(); |
| broker.waitUntilStarted(); |
| } |
| |
| |
| private BrokerService createAndStartBroker() |
| throws Exception { |
| BrokerService broker = new BrokerService(); |
| broker.setDeleteAllMessagesOnStartup(true); |
| broker.setUseJmx(false); |
| broker.setAdvisorySupport(false); |
| broker.getSystemUsage().getMemoryUsage().setLimit(100 * 1024); |
| |
| PolicyMap policyMap = new PolicyMap(); |
| PolicyEntry policy = new PolicyEntry(); |
| policy.setCursorMemoryHighWaterMark(20); |
| policyMap.put(topic, policy); |
| broker.setDestinationPolicy(policyMap); |
| |
| broker.start(); |
| |
| return broker; |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| broker.stop(); |
| } |
| |
| @Test |
| public void testCacheExhaustion() throws Exception { |
| doTestCacheExhaustion(1000); |
| } |
| |
| @Test |
| public void testCacheExhaustionPrefetch0() throws Exception { |
| doTestCacheExhaustion(0); |
| } |
| |
| public void doTestCacheExhaustion(int prefetch) throws Exception { |
| |
| createDurableSub(topic, "my_sub_1"); |
| |
| publishMesssages(topic, 20); |
| |
| org.apache.log4j.Logger log4jLogger = org.apache.log4j.Logger.getLogger(AbstractStoreCursor.class.getCanonicalName()); |
| final AtomicBoolean failed = new AtomicBoolean(false); |
| |
| Appender appender = new DefaultTestAppender() { |
| @Override |
| public void doAppend(LoggingEvent event) { |
| if (event.getLevel() == Level.WARN) { |
| LOG.info("Got warn event:" + event.getRenderedMessage()); |
| failed.set(true); |
| } |
| } |
| }; |
| log4jLogger.addAppender(appender); |
| |
| try { |
| consumeDurableSub(topic, "my_sub_1", 20, prefetch); |
| } finally { |
| log4jLogger.removeAppender(appender); |
| } |
| |
| assertFalse("no warning from the cursor", failed.get()); |
| } |
| |
| private void publishMesssages(ActiveMQTopic topic, int messageCount) throws Exception { |
| |
| ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(broker.getVmConnectorURI()); |
| connectionFactory.setWatchTopicAdvisories(false); |
| Connection con = connectionFactory.createConnection(); |
| con.start(); |
| |
| Session session = con.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| MessageProducer producer = session.createProducer(topic); |
| |
| try { |
| String textMessage = new String(new byte[1024]); |
| TextMessage msg = session.createTextMessage(textMessage); |
| |
| for (int i = 0; i < messageCount; i++) { |
| producer.send(msg); |
| } |
| } finally { |
| con.close(); |
| } |
| |
| } |
| |
| |
| private void createDurableSub(ActiveMQTopic topic, String subID) throws Exception { |
| |
| |
| ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(broker.getVmConnectorURI()); |
| connectionFactory.setWatchTopicAdvisories(false); |
| Connection con = connectionFactory.createConnection(); |
| con.setClientID("CONNECTION-" + subID); |
| con.start(); |
| |
| Session session = con.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| |
| session.createDurableSubscriber(topic, subID, null, true); |
| session.close(); |
| con.close(); |
| } |
| |
| private void consumeDurableSub(ActiveMQTopic topic, String subID, int messageCount) throws Exception { |
| consumeDurableSub(topic, subID, messageCount, 1000); |
| } |
| |
| private void consumeDurableSub(ActiveMQTopic topic, String subID, int messageCount, int prefetch) throws Exception { |
| |
| ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(broker.getVmConnectorURI()); |
| ActiveMQConnection con = (ActiveMQConnection) connectionFactory.createConnection(); |
| con.setClientID("CONNECTION-" + subID); |
| con.getPrefetchPolicy().setAll(prefetch); |
| con.start(); |
| |
| Session session = con.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| |
| TopicSubscriber topicSubscriber |
| = session.createDurableSubscriber(topic, subID, null, true); |
| |
| try { |
| |
| for (int i = 0; i < messageCount; i++) { |
| javax.jms.Message message = topicSubscriber.receive(4000l); |
| if (message == null) { |
| fail("should have received a message"); |
| } |
| } |
| |
| } finally { |
| con.close(); |
| } |
| } |
| |
| |
| } |