listenerset1.java

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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.http.HttpSessionAttributeListener;
import javax.servlet.http.HttpSessionActivationListener;
import javax.servlet.http.HttpSessionBindingEvent;
import javax.servlet.http.HttpSessionEvent;
import javax.servlet.http.HttpSessionListener;
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 context-related application events, which were
 * introduced in the 2.3 version of the Servlet API.  This listener
 * merely documents the occurrence of such events in the application log
 * associated with our servlet context.
 *
 * @author James Cai
 */

public final class Listenerset1
implements ServletContextListener,ServletContextAttributeListener,
HttpSessionAttributeListener, HttpSessionListener,
HttpSessionActivationListener {
    
    private boolean logToFile = false;
    /*
    private String logFileASSE = "../webapps/workflow/static/ListenerASSE.txt";
    
    private String logFileAAE = "../webapps/workflow/static/ListenerAAE.txt";
    private String logFileSCDE = "../webapps/workflow/static/ListenerSCDE.txt";
    private String logFileSATE = "../webapps/workflow/static/ListenerSATE.txt";
    private String logFileSACE = "../webapps/workflow/static/ListenerSACE.txt";
    private String logFileCIAL = "../webapps/workflow/static/ListenerCIAL.txt";
    
    private FileOutputStream logFileOutASSE=null;
    private FileOutputStream logFileOutAAE=null;
    private FileOutputStream logFileOutSCDE=null;
    private FileOutputStream logFileOutSATE=null;
    private FileOutputStream logFileOutSACE=null;
    private FileOutputStream logFileOutCIAL=null;
    */
    
    private ServletContext context = null;
    
    private MailSender amailSender = null;
    
    private File baseDir = null;
    
    private MailSender getMailSender() {
        if (amailSender == null) {
            amailSender = new MailSender();
        }
        return amailSender;
    }
    //find the emails of who wants to received a update notice
    
    private String getReceiver(String taskid)
    {
        return "[e-mail]";
        
    }
    
    public void attributeAdded(ServletContextAttributeEvent event) {
        /*
        String message ="attributeAdded('" + event.getName() + "', '" +
        event.getValue() + "')";
        File logFileNotify = new File(baseDir, "NotificationLog.txt");
        File logFileMailError = new File(baseDir, "MailError.txt");
       if (event.getName().equals("taskupdate"))
       {
           EmailModel amesg = new EmailModel("Workflow Update [Do not reply]", 
                                             "Task Information Updated: "+
                                             "Please See "+"http://localhost:8080/workflow/control/viewtask?task_ID="+
                                             event.getValue()+"for Detail.",
                                         getReceiver((String)event.getValue()), Locale.ENGLISH);
       //
           try
           {
           getMailSender().createAndSendMail(amesg);
                   Debug.log("Mail: to"+ getReceiver((String)event.getValue()), logFileNotify);
           }
           catch (Exception ex)
           {
               Debug.log("Mail Error:"+ex, logFileMailError);
               System.out.println(ex);
           }
       }
         */
    }
    
    
    
    //ListenerAAE application attribute
    
    public void attributeRemoved(ServletContextAttributeEvent event) {
        
        String message = "attributeRemoved('" + event.getName() + "', '" +
        event.getValue() + "')";
    }
    
    //ListenerAAE application attribute
    
    public void attributeReplaced(ServletContextAttributeEvent event) {
        
        String message = "attributeReplaced('" + event.getName() + "', '"+ "')";
    }
    
    //ListenerSATE session attribute
    
    public void attributeAdded(HttpSessionBindingEvent event) {
        
        String message = "attributeAdded('" + "', '" +
        event.getName() + "', '"  + "')";
    }
    
    //ListenerSATE session attribute
    
    public void attributeRemoved(HttpSessionBindingEvent event) {
        
        String message = "attributeRemoved('" + "', '" +
        event.getName() + "', '" + "')";
    }
    
    //ListenerSATE session attribute
    
    public void attributeReplaced(HttpSessionBindingEvent event) {
        
        String message = "attributeReplaced('" + "', '" +
        event.getName() + "', '" + "')";
    }
    
    //ListenerASSE application shutdown
    
    public void contextDestroyed(ServletContextEvent event) {
        
        String message = "contextDestroyed()";
        Debug.println(message);
        this.context = null;
    }
    
    //ListenerASSE application startup
    
    public void contextInitialized(ServletContextEvent event) {
        
        this.context = event.getServletContext();
        String message = "Workflow: contextInitialized()";
        Debug.println(message);
        baseDir = (File)context.getAttribute("javax.servlet.context.tempdir");
        //String empty = null;
        //if (empty.equals("notnul")) Debug.println("Listenerset1 error coor");
        //log(message, logFileASSE, logFileOutASSE);
        
    }
    
    //ListenerSCDE session created
    
    public void sessionCreated(HttpSessionEvent event) {
        
        String message = "sessionCreated('" + " new session" + "')";

    }
    
    //ListenerSCDE session destroyed
    
    public void sessionDestroyed(HttpSessionEvent event) {
        
        String message = "sessionDestroyed('" + " new session" + "')";
        Debug.println("Listenerset1: sessionDestroyed");
        String empty = null;
        if (empty.equals("notnul")) Debug.println("Listenerset1 error");

    }
    
    //ListenerSACE session activation
    
    public void sessionDidActivate(HttpSessionEvent event) {
        
        String message = "sessionDidActivate('" + " new session" + "')";
    }
    
    //ListenerSACE session activation
    
    public void sessionWillPassivate(HttpSessionEvent event) {
        
        String message = "sessionWillPassivate('" + " new session " + "')";
    }
    
}