package com.sun.j2ee.workflow.control.listeners;import javax.servlet.ServletContext;import javax.servlet.ServletContextEvent;import javax.servlet.ServletContextAttributeEvent;import javax.servlet.ServletContextListener;import javax.servlet.ServletContextAttributeListener;import javax.servlet.ServletRequestListener;import javax.servlet.ServletRequestAttributeListener;import javax.servlet.http.HttpSessionAttributeListener;import javax.servlet.http.HttpSessionActivationListener;import javax.servlet.http.HttpSessionBindingEvent;import javax.servlet.http.HttpSessionEvent;import javax.servlet.http.HttpSessionListener;import javax.servlet.http.HttpServletRequest;import java.io.*;import java.util.Locale;import com.sun.j2ee.workflow.util.Debug;import com.sun.j2ee.workflow.mail.*;import com.sun.j2ee.workflow.mail.exceptions.*;/** * Example listener for request-related application events, which were * introduced in the 2.4 version of the Servlet API.   * * @author James Cai */public final class RequestListener implements ServletRequestListener, ServletRequestAttributeListener, ServletContextListener{        private boolean logToFile = true;            private FileOutputStream logFileOutSRL = null;    private File logFileSRL = null;        private FileOutputStream logFileOutASSE = null;    private File logFileASSE = null;    private ServletContext context = null;        private MailSender amailSender = null;        private File baseDir = null;        private MailSender getMailSender() {        if (amailSender == null) {            amailSender = new MailSender();        }        return amailSender;    }            public void requestInitialized(javax.servlet.ServletRequestEvent event) {        String message = "requestInitialized('" + 	  //  event.getRequest().getServerName() + "', '" + event.getServletContext().getServerInfo() + "')";        ((HttpServletRequest)event.getRequest()).getRequestURI() + "','"+ event.getServletContext().getServerInfo() + "')";	logFileSRL = new File(baseDir, "ListenerSRL.txt");	log(message, logFileSRL, logFileOutSRL);    }        public void attributeAdded(javax.servlet.ServletRequestAttributeEvent event) {         String message = "requestattributeAdded('" +              ((HttpServletRequest)event.getRequest()).getRequestURI() + "', '" + event.getValue() + "')";        	logFileSRL = new File(baseDir, "ListenerSRL.txt"); 	log(message, logFileSRL, logFileOutSRL);    }        public void attributeRemoved(javax.servlet.ServletRequestAttributeEvent event) {        String message = "requestattributeRemoved('" +             ((HttpServletRequest)event.getRequest()).getRequestURI() + "', '" + event.getValue() + "')";        	logFileSRL = new File(baseDir, "ListenerSRL.txt");	log(message, logFileSRL, logFileOutSRL);    }        public void attributeReplaced(javax.servlet.ServletRequestAttributeEvent event) {        String message = "requestattributeReplaced('" +             ((HttpServletRequest)event.getRequest()).getRequestURI() + "', '" + event.getValue() + "')";        logFileSRL = new File(baseDir, "ListenerSRL.txt");	log(message, logFileSRL, logFileOutSRL);    }        public void requestDestroyed(javax.servlet.ServletRequestEvent event) {        String message = "requestDestroyed('" +           ((HttpServletRequest)event.getRequest()).getRequestURI() + "', '" + event.getServletContext().getServerInfo() + "')";        logFileSRL = new File(baseDir, "ListenerSRL.txt");        log(message, logFileSRL, logFileOutSRL);    }        public void contextInitialized(ServletContextEvent event) {	this.context = event.getServletContext();	  String message = "contextInitialized()";	  baseDir = (File)context.getAttribute("javax.servlet.context.tempdir");	  logFileASSE = new File(baseDir, "ListenerASSE.txt");	log(message, logFileASSE, logFileOutASSE);    }            private void log(String message, File filename, FileOutputStream logFileOut) {		try		{		if ( logToFile==true )		{			  if ( logFileOut == null )			  {				logFileOut = new FileOutputStream( filename.toString(), true );			  }			  logFileOut.write( ("RequestListener: " + message).getBytes() );			  logFileOut.write ( "\n".getBytes() );		}	    //System.out.println("Listenerset3: " + message);		}		catch (Exception e )		{			System.out.println("Exception occured : " + e );		}    }    private void log(String message, String filename, FileOutputStream logFileOut) {		try		{		if ( logToFile==true )		{			  if ( logFileOut == null )			  {				logFileOut = new FileOutputStream( filename, true );			  }			  logFileOut.write( ("WorkflowListenerSRL: " + message).getBytes() );			  logFileOut.write ( "\n".getBytes() );		}                //need to change to new Tomcat logger			//System.out.println("Request Event Loger");		}		catch (Exception e )		{			System.out.println("Exception occured : " + e );		}    }    public void contextDestroyed(javax.servlet.ServletContextEvent servletContextEvent) {    }         }