some fixes for: https://issues.apache.org/jira/browse/AMQ-4487

Add test case to demonstrate the issue with audit depth and QueueBrowsers.

git-svn-id: https://svn.apache.org/repos/asf/activemq/trunk@1489468 13f79535-47bb-0310-9956-ffa450edef68

activemq-unit-tests/src/test/java/org/apache/activemq/bugs/AMQ4487Test.java

@@ -0,0 +1,139 @@
+/**
+ * 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.bugs;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+import java.net.URI;
+import java.util.Enumeration;
+
+import javax.jms.Connection;
+import javax.jms.Message;
+import javax.jms.MessageProducer;
+import javax.jms.Queue;
+import javax.jms.QueueBrowser;
+import javax.jms.Session;
+
+import org.apache.activemq.ActiveMQConnectionFactory;
+import org.apache.activemq.broker.BrokerService;
+import org.apache.activemq.broker.TransportConnector;
+import org.apache.activemq.broker.region.policy.PolicyEntry;
+import org.apache.activemq.broker.region.policy.PolicyMap;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class AMQ4487Test {
+
+    private static final Logger LOG = LoggerFactory.getLogger(AMQ4487Test.class);
+
+    private final String destinationName = "TEST.QUEUE";
+    private BrokerService broker;
+    private URI connectUri;
+    private ActiveMQConnectionFactory factory;
+
+    @Before
+    public void startBroker() throws Exception {
+        broker = new BrokerService();
+        TransportConnector connector = broker.addConnector("tcp://0.0.0.0:0");
+        broker.deleteAllMessages();
+
+        PolicyEntry policy = new PolicyEntry();
+        policy.setQueue(">");
+        policy.setMaxProducersToAudit(75);
+        PolicyMap pMap = new PolicyMap();
+        pMap.setDefaultEntry(policy);
+        broker.setDestinationPolicy(pMap);
+
+        broker.start();
+        broker.waitUntilStarted();
+        connectUri = connector.getConnectUri();
+        factory = new ActiveMQConnectionFactory(connectUri);
+    }
+
+    @After
+    public void stopBroker() throws Exception {
+        broker.stop();
+        broker.waitUntilStopped();
+    }
+
+    private void sendMessages(int messageToSend) throws Exception {
+        String data = "";
+        for (int i = 0; i < 1024 * 2; i++) {
+            data += "x";
+        }
+
+        Connection connection = factory.createConnection();
+        connection.start();
+
+        for (int i = 0; i < messageToSend; i++) {
+            Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
+            Queue queue = session.createQueue(destinationName);
+            MessageProducer producer = session.createProducer(queue);
+            producer.send(session.createTextMessage(data));
+            session.close();
+        }
+
+        connection.close();
+    }
+
+    @Test
+    public void testBrowsingWithLessThanMaxAuditDepth() throws Exception {
+        doTestBrowsing(75);
+    }
+
+    @Test
+    public void testBrowsingWithMoreThanMaxAuditDepth() throws Exception {
+        doTestBrowsing(76);
+    }
+
+    @SuppressWarnings("rawtypes")
+    private void doTestBrowsing(int messagesToSend) throws Exception {
+
+        Connection connection = factory.createConnection();
+        connection.start();
+        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
+        Queue queue = session.createQueue(destinationName);
+
+        sendMessages(messagesToSend);
+
+        QueueBrowser browser = session.createBrowser(queue);
+        Enumeration enumeration = browser.getEnumeration();
+        int received = 0;
+        while (enumeration.hasMoreElements()) {
+            Message m = (Message) enumeration.nextElement();
+            assertNotNull(m);
+
+            if (LOG.isDebugEnabled()) {
+                LOG.debug("Browsed Message: {}", m.getJMSMessageID());
+            }
+            LOG.info("Browsed Message: {}", m.getJMSMessageID());
+
+            received++;
+            if (received > messagesToSend) {
+                break;
+            }
+        }
+
+        browser.close();
+
+        assertEquals(messagesToSend, received);
+    }
+}