/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.management.j2ee;
import org.jboss.logging.Logger;
import org.jboss.management.j2ee.statistics.ServletStatsImpl;
import org.jboss.management.j2ee.statistics.TimeStatisticImpl;
import javax.management.MBeanServer;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import javax.management.j2ee.statistics.Stats;
import java.util.Hashtable;
/**
* The JBoss JSR-77.3.17 Servlet model implementation
*
* @author <a href="mailto:andreas@jboss.org">Andreas Schaefer</a>
* @author <a href="mailto:scott.stark@jboss.org">Scott Stark</a>
* @author <a href="mailto:thomas.diesler@jboss.org">Thomas Diesler</a>
* @version $Revision: 81025 $
*/
public class Servlet extends J2EEManagedObject
implements ServletMBean
{
// Attributes ----------------------------------------------------
private static Logger log = Logger.getLogger(Servlet.class);
private ObjectName servletServiceName;
private ServletStatsImpl stats;
// Static --------------------------------------------------------
/**
* Create a JSR77 Servlet submodel.
*
* @param mbeanServer the MBeanServer to use for mbean creation
* @param webModuleName the name of the JSR77 web module mbean
* @param webContainerName the name of the JBoss web container mbean
* @param servletName the name of the servlet
* @return the ObjectName of the JSR77 Servlet mbean
*/
public static ObjectName create(MBeanServer mbeanServer, ObjectName webModuleName,
ObjectName webContainerName, ObjectName servletServiceName)
{
try
{
Servlet servlet = new Servlet(servletServiceName, webModuleName, webContainerName);
ObjectName jsr77Name = servlet.getObjectName();
mbeanServer.registerMBean(servlet, jsr77Name);
log.debug("Created JSR-77 Servlet: " + jsr77Name);
return jsr77Name;
}
catch (Exception e)
{
log.debug("Could not create JSR-77 Servlet: " + servletServiceName, e);
return null;
}
}
public static void destroy(MBeanServer mbeanServer, ObjectName jsr77Name)
{
try
{
mbeanServer.unregisterMBean(jsr77Name);
log.debug("Destroyed JSR-77 Servlet: " + jsr77Name);
}
catch (javax.management.InstanceNotFoundException ignore)
{
}
catch (Exception e)
{
log.debug("Could not destroy JSR-77 Servlet: " + jsr77Name, e);
}
}
// Constructors --------------------------------------------------
/**
* @param pName Name of the Servlet
* @throws InvalidParameterException If list of nodes or ports was null or empty
*/
public Servlet(ObjectName servletServiceName, ObjectName webModuleName,
ObjectName webContainerName)
throws MalformedObjectNameException,
InvalidParentException
{
super(J2EETypeConstants.Servlet, servletServiceName.getKeyProperty("name"), webModuleName);
this.servletServiceName = servletServiceName;
this.stats = new ServletStatsImpl();
}
/**
* StatisticsProvider access to stats.
*
* @return A ServletStats implementation
* @jmx:managed-attribute
*/
public Stats getstats()
{
try
{
TimeStatisticImpl serviceTime = (TimeStatisticImpl) stats.getServiceTime();
Integer count = (Integer) server.getAttribute(servletServiceName, "requestCount");
Long totalTime = (Long) server.getAttribute(servletServiceName, "processingTime");
Long minTime = (Long) server.getAttribute(servletServiceName, "minTime");
Long maxTime = (Long) server.getAttribute(servletServiceName, "maxTime");
serviceTime.set(count.longValue(), minTime.longValue(),
maxTime.longValue(), totalTime.longValue());
}
catch (Exception e)
{
log.debug("Failed to retrieve stats", e);
}
return stats;
}
public void resetStats()
{
stats.reset();
}
// java.lang.Object overrides --------------------------------------
public String toString()
{
return "Servlet { " + super.toString() + " } []";
}
// Package protected ---------------------------------------------
// Protected -----------------------------------------------------
/**
* @return A hashtable with the Web-Module, J2EE-Application and J2EE-Server as parent
*/
protected Hashtable getParentKeys(ObjectName pParent)
{
Hashtable lReturn = new Hashtable();
Hashtable lProperties = pParent.getKeyPropertyList();
lReturn.put(J2EETypeConstants.WebModule, lProperties.get("name"));
// J2EE-Application and J2EE-Server is already parent of J2EE-Application therefore lookup
// the name by the J2EE-Server type
lReturn.put(J2EETypeConstants.J2EEApplication, lProperties.get(J2EETypeConstants.J2EEApplication));
lReturn.put(J2EETypeConstants.J2EEServer, lProperties.get(J2EETypeConstants.J2EEServer));
return lReturn;
}
}