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/*
*
* 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.qpid.server;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileReader;
import javax.jms.Connection;
import javax.jms.MessageConsumer;
import javax.jms.Queue;
import javax.jms.Session;
import org.apache.commons.configuration.XMLConfiguration;
import org.apache.log4j.FileAppender;
import org.apache.log4j.Logger;
import org.apache.log4j.SimpleLayout;
import org.apache.qpid.server.store.DerbyMessageStore;
import org.apache.qpid.test.utils.QpidTestCase;
public class AlertingTest extends QpidTestCase
{
private String VIRTUALHOST = "test";
private Session _session;
private Connection _connection;
private Queue _destination;
private MessageConsumer _consumer; // Never read, but does need to be here to create the destination.
private File _logfile;
private XMLConfiguration _configuration;
private int _numMessages;
public void setUp() throws Exception
{
// First we munge the config file and, if we're in a VM, set up an additional logfile
_configuration = new XMLConfiguration(_configFile);
_configuration.setProperty("management.enabled", "false");
Class storeClass = DerbyMessageStore.class;
Class bdb = null;
try {
bdb = Class.forName("org.apache.qpid.store.berkleydb.BDBMessageStore");
}
catch (ClassNotFoundException e)
{
// No BDB store, we'll use Derby instead.
}
if (bdb != null)
{
storeClass = bdb;
}
_configuration.setProperty("virtualhosts.virtualhost." + VIRTUALHOST + ".store.class", storeClass.getName());
_numMessages = 50;
File tmpFile = File.createTempFile("configFile", "test");
tmpFile.deleteOnExit();
_configuration.save(tmpFile);
_configFile = tmpFile;
if (_outputFile != null)
{
_logfile = _outputFile;
}
else
{
// This is mostly for running the test outside of the ant setup
_logfile = File.createTempFile("logFile", "test");
FileAppender appender = new FileAppender(new SimpleLayout(), _logfile.getAbsolutePath());
appender.setFile(_logfile.getAbsolutePath());
appender.setImmediateFlush(true);
Logger.getRootLogger().addAppender(appender);
//_logfile.deleteOnExit();
}
// Then we do the normal setup stuff like starting the broker, getting a connection etc.
super.setUp();
_connection = getConnection();
_session = _connection.createSession(true, Session.AUTO_ACKNOWLEDGE);
_destination = _session.createQueue("testQueue");
// Consumer is only used to actually create the destination
_consumer = _session.createConsumer(_destination);
}
/**
* Checks the log file for MESSAGE_COUNT_ALERT, fails() the test if it's not found and
* places the entire contents in the message to help debug cruise control failures.
* @throws Exception
*/
private void wasAlertFired() throws Exception
{
// Loop through alerts until we're done or 5 seconds have passed,
// just in case the logfile takes a while to flush.
BufferedReader reader = new BufferedReader(new FileReader(_logfile));
boolean found = false;
long endtime = System.currentTimeMillis()+5000;
while (!found && System.currentTimeMillis() < endtime)
{
while (reader.ready())
{
String line = reader.readLine();
if (line.contains("MESSAGE_COUNT_ALERT"))
{
found = true;
}
}
}
if (!found)
{
StringBuffer message = new StringBuffer("Could not find alert in log file: "+_logfile.getAbsolutePath());
message.append("\n");
reader = new BufferedReader(new FileReader(_logfile));
for (int i = 0; i < 79; i++) { message.append("-"); };
message.append("\n");
while (reader.ready()) { message.append(reader.readLine() + "\n");}
message.append("\n");
for (int i = 0; i < 79; i++) { message.append("-"); };
message.append("\n");
fail(message.toString());
}
}
public void testAlertingReallyWorks() throws Exception
{
// Send 5 messages, make sure that the alert was fired properly.
sendMessage(_session, _destination, _numMessages + 1);
_session.commit();
wasAlertFired();
}
public void testAlertingReallyWorksWithRestart() throws Exception
{
sendMessage(_session, _destination, _numMessages + 1);
_session.commit();
stopBroker();
(new FileOutputStream(_logfile)).getChannel().truncate(0);
startBroker();
wasAlertFired();
}
public void testAlertingReallyWorksWithChanges() throws Exception
{
// send some messages and nuke the logs
sendMessage(_session, _destination, 2);
_session.commit();
stopBroker();
(new FileOutputStream(_logfile)).getChannel().truncate(0);
// Change max message count to 5, start broker and make sure that that's triggered at the right time
_configuration.setProperty("virtualhosts.virtualhost." + VIRTUALHOST + ".queues.maximumMessageCount", 5);
startBroker();
_connection = getConnection();
_session = _connection.createSession(true, Session.AUTO_ACKNOWLEDGE);
// Trigger the new value
sendMessage(_session, _destination, 3);
_session.commit();
wasAlertFired();
}
}
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