JmxTest

/*
 * EL4J, the Extension Library for the J2EE, adds incremental enhancements to
 * the spring framework, http://el4j.sf.net
 * Copyright (C) 2005 by ELCA Informatique SA, Av. de la Harpe 22-24,
 * 1000 Lausanne, Switzerland, http://www.elca.ch
 *
 * EL4J is published under the GNU Lesser General Public License (LGPL)
 * Version 2.1. See http://www.gnu.org/licenses/
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
 *
 * For alternative licensing, please contact info@elca.ch
 */

package ch.elca.el4j.tests.services.monitoring.jmx;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

import javax.management.MBeanServer;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.junit.Test;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import ch.elca.el4j.core.context.ModuleApplicationContext;

/**
 * JUnit Test Class for the JMX package.
 *
 * <p>
 * If one wants to observe the SpringBeans of this test environment, then the
 * commented part at the end of the second method should be uncommented. The
 * SpringBeans of both ApplicationContexts of the first test can be accessed by
 * entering <A HREF="http://localhost:9092/">http://localhost:9092/ </A> at your
 * web browser. The SpringBeans of the second test of the first
 * ApplicationContext can be accessed by <A
 * HREF="http://localhost:9093/">http://localhost:9093/ </A>. The ones of the
 * second ApplicationContext can be viewed by a management console which
 * supports JSR 160 (JMX Remoting) connections. One such console is MC4J which
 * can be found at <A
 * HREF="http://mc4j.sourceforge.net/">http://mc4j.sourceforge.net/ </A>.
 *
 * @svnLink $Revision: 3879 $;$Date: 2009-08-04 15:13:46 +0200 (Di, 04. Aug 2009) $;$Author: swismer $;$URL: https://el4j.svn.sourceforge.net/svnroot/el4j/branches/el4j_3_1/el4j/framework/modules/jmx/src/test/java/ch/elca/el4j/tests/services/monitoring/jmx/JmxTest.java $
 *
 * @author Raphael Boog (RBO)
 */
public class JmxTest {

	/**
	 * Private logger of this class.
	 */
	private static Logger s_logger = LoggerFactory.getLogger(JmxTest.class);

	/**
	 * All xml files in the 'mandatory' folder.
	 */
	String m_mandatoryFiles = "classpath*:mandatory/*.xml";

	/**
	 * Configuration file number 1.
	 */
	String m_fileName1 = "classpath:optional/beans1.xml";

	/**
	 * Configuration file number 2.
	 */
	String m_fileName2 = "classpath:optional/beans2.xml";

	/**
	 * Configuration file number 3.
	 */
	String m_fileName3 = "classpath:optional/beans3.xml";

	/**
	 * Configuration file number 4.
	 */
	String m_fileName4 = "classpath:optional/beans4.xml";

	/**
	 * This test loads two ApplicationContexts where MBeans are registered at
	 * the same MBean Server and checks if the MBeans are really registered at
	 * the MBean Server.
	 *
	 * @throws MalformedObjectNameException
	 *             The format of the String does not correspond to a valid
	 *             ObjectName
	 */
	@Test
	public void testRegisteredMBeanWithTwoAppCxtsAndOneJmxInstance()
		throws MalformedObjectNameException {

		ConfigurableApplicationContext tac1
			= new ClassPathXmlApplicationContext(
				new String[] {m_mandatoryFiles, m_fileName1});

		ConfigurableApplicationContext tac2
			= new ModuleApplicationContext(new String[] {
				m_mandatoryFiles, m_fileName2}, false);

		ObjectName on1 = new ObjectName("MBean:name=foo1");
		ObjectName on2 = new ObjectName("MBean:name=foo2");
		ObjectName on3 = new ObjectName("SpringBean1:name=mBeanExporter");
		ObjectName on4 = new ObjectName("SpringBean2:name=foo2");

		MBeanServer mBeanServer1 = (MBeanServer) tac1.getBean("mBeanServer");

		MBeanServer mBeanServer2 = (MBeanServer) tac2.getBean("mBeanServer");

		assertEquals("The two MBean Servers in the two Application Contexts "
			+ "should be the same.", mBeanServer1, mBeanServer2);

		assertTrue("MBean with object name 'MBean:name=foo1' is not "
			+ "registered at the MBean Server", mBeanServer1.isRegistered(on1));

		assertTrue("MBean with object name 'MBean:name=foo2' is not "
			+ "registered at the MBean Server", mBeanServer1.isRegistered(on2));

		assertTrue("MBean with object name 'SpringBean1:name=mBeanExporter1' "
			+ "is not registered at the MBean Server", mBeanServer1
			.isRegistered(on3));

		assertTrue("MBean with object name 'SpringBean2:name=foo2' is not "
			+ "registered at the MBean Server", mBeanServer1.isRegistered(on4));

		// Shut down the application contexts
		tac1.close();
		tac2.close();
	}

	/**
	 * This test loads two ApplicationContexts where MBeans are registered at
	 * two different MBean Servers and checks if the MBeans are really
	 * registered at the corresponding MBean Server. The only difference in
	 * configuration to the test before is that the 'defaultDomain' property of
	 * the MBean Server is overridden in both ApplicationContexts and that the
	 * second ApplicationContext can be connected by a JSR 160 JMX connection
	 * instead of html.
	 *
	 * @throws MalformedObjectNameException
	 *             The format of the string does not correspond to a valid
	 *             ObjectName
	 */
	@Test
	public void testRegisteredMBeanWithTwoAppCxtsAndTwoMBeanServers()
		throws MalformedObjectNameException {

		ConfigurableApplicationContext tac1
			= new ClassPathXmlApplicationContext(
				new String[] {m_mandatoryFiles, m_fileName3});

		ConfigurableApplicationContext tac2
			= new ClassPathXmlApplicationContext(
				new String[] {m_mandatoryFiles, m_fileName4});

		ObjectName on1 = new ObjectName("MBean:name=foo3");
		ObjectName on2 = new ObjectName("MBean:name=foo4");
		ObjectName on3 = new ObjectName("SpringBean3:name=mBeanExporter");
		ObjectName on4 = new ObjectName("SpringBean4:name=foo4");

		MBeanServer mBeanServer1 = (MBeanServer) tac1.getBean("mBeanServer");

		MBeanServer mBeanServer2 = (MBeanServer) tac2.getBean("mBeanServer");

		assertTrue("MBean with object name 'MBean:name=foo3' is not "
			+ "registered at the MBean Server 1", mBeanServer1
			.isRegistered(on1));

		assertTrue("MBean with object name 'MBean:name=foo4' is not "
			+ "registered at the MBean Server 2", mBeanServer2
			.isRegistered(on2));

		assertTrue("MBean with object name 'SpringBean3:name=mBeanExporter3' "
			+ "is not registered at the MBean Server 1", mBeanServer1
			.isRegistered(on3));

		assertTrue("MBean with object name 'SpringBean4:name=foo4' is not "
			+ "registered at the MBean Server 2", mBeanServer2
			.isRegistered(on4));

		s_logger.info("see source file to run it in non-stopping mode.");
		/*
		System.out.println("Waiting forever...");
		try {
			Thread.sleep(Long.MAX_VALUE);
		} catch (InterruptedException e) {
			String message = "Another thread has interrupted the current "
				+ "thread. The interrupted status of the current thread "
				+ "is cleared when this exception is thrown.";
			s_logger.error(message);
			throw new BaseRTException(message, e);
		}
		*/

		// Shut down the application contexts
		tac1.close();
		tac2.close();
	}
}