jsr77servletholdermbean.java

是离开的肌肤了卡机是离开的就富利卡及是了的开发及拉考试及的福利科技阿斯利康的肌肤莱卡及时的离开福建阿斯顿发

//========================================================================
//$Id: Jsr77ServletHolderMBean.java 1259 2006-11-19 16:00:48Z janb $
//Copyright 2000-2004 Mort Bay Consulting Pty. Ltd.
//------------------------------------------------------------------------
//Licensed 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.mortbay.jetty.servlet.jsr77.management;

import javax.management.MBeanException;
import javax.management.ObjectName;
import javax.management.j2ee.statistics.ServletStats;

import org.jboss.jetty.JBossWebAppContext;
import org.mortbay.jetty.servlet.jsr77.Jsr77ServletHolder;
import org.mortbay.management.ObjectMBean;
import org.mortbay.log.Log;


/**
 * 
 * Jsr77ServletHolderMBean
 *
 * @author janb
 * @version $Revision: 1259 $ $Date: 2006-11-19 10:00:48 -0600 (Sun, 19 Nov 2006) $
 *
 */
public class Jsr77ServletHolderMBean extends ObjectMBean
{
    private Jsr77ServletHolder _servletHolder = null;
    private ServletStats _stats;
    
    
    public Jsr77ServletHolderMBean (Object managedObject)
    	throws MBeanException
    {
    	super(managedObject);
    	_servletHolder = (Jsr77ServletHolder)managedObject;
    }
    
    /**StatisticsProvider
     * As per the jsr77 spec, we are providing statistics for a
     * servlet
     * @return true
     */
    public boolean getStatisticsProvider ()
    {
        return true;
    }
    
    /**ServletStats
     * @return the JSR77 servlet stats for the servlet we represent
     */
    public ServletStats getStats ()
    {
        getJsr77Stats();
        return _stats;
    }
    
    /**MaxTime
     * Necessary for JBoss's JSR77 impl.
     * @return the max service time statistic
     */
    public Long getMaxTime ()
    {
        getJsr77Stats();
        
        if (null==_stats)
            return new Long(0L);
        
        return new Long(_stats.getServiceTime().getMaxTime());              
    }
    
    /**MinTime
     * Necessary for JBoss's JSR77 impl.
     * @return the min service time statistic
     */
    public Long getMinTime ()
    {
        getJsr77Stats();
        if (null==_stats)
            return new Long(0L);
        
        return new Long(_stats.getServiceTime().getMinTime());          
    }
   
    
    /**Satisfying JBoss's JSR77 impl
     * @return
     */
    public Long getProcessingTime ()
    {
        return new Long(getTotalTime());
    }
    
    /**Satisfying JBoss's JSR77 impl
     * @return
     */
    public Integer getRequestCount ()
    {
        return new Integer((int)getCount());
    }
    
    /**Count
     * Convenience method. Also helpful for JBoss's JSR77 impl.
     * @return the number of times the servlet service() method has been called.
     */
    private long getCount ()
    {
        getJsr77Stats();
        if (null==_stats)
            return 0L;
        
        return _stats.getServiceTime().getCount();          
    }
    
    /**TotalTime
     * Convenience method. Also helpful for JBoss's JSR77 impl.
     * @return the total time spent in the servlet's service() method.
     */
    private long getTotalTime()
    {
       getJsr77Stats();
        if (null==_stats)
            return 0L;
        
        return _stats.getServiceTime().getTotalTime();    
    }
    
    /** Jsr77Stats
     * Lookup the statistic object for the servlet we represent.
     * Statistics are captured by a filter placed in front of each servlet.
     */
    private void getJsr77Stats ()
    {
        if (null==_stats)
        {
            if (null==_servletHolder)
                return;
            
            _stats = _servletHolder.getServletStats();
        }
    }
    
   public ObjectName getObjectName()
   {
       
       if (getMBeanContainer() == null)
           return null; //not possible to make a name
      
       String name = _servletHolder.getName();
       ObjectName oname = null;
       try
       {
           oname = new ObjectName(getMBeanContainer().getDomain()+":J2EEServer=none,J2EEApplication=none,J2EEWebModule="+((JBossWebAppContext)_servletHolder.getWebAppContext()).getUniqueName()+",j2eeType=Servlet,name="+name);    
       }
       catch (Exception e)
       {
           Log.warn(e);
       }
       return oname;
       
   }
}