jahiafilewatcherservice.java

java 写的一个新闻发布系统

//
//                                   ____.
//                       __/\ ______|    |__/\.     _______
//            __   .____|    |       \   |    +----+       \
//    _______|  /--|    |    |    -   \  _    |    :    -   \_________
//   \\______: :---|    :    :           |    :    |         \________>
//           |__\---\_____________:______:    :____|____:_____\
//                                      /_____|
//
//                 . . . i n   j a h i a   w e   t r u s t . . .
//
//
//
//  JahiaFileWatcherService
//
//  NK      12.01.2001
//
//


package org.jahia.services.deamons.filewatcher;


import java.io.*;
import java.text.*;
import java.util.*;

import org.jahia.exceptions.*;  // JahiaException
import org.jahia.utils.*;       // JahiaConsole
import org.jahia.services.*;    // JahiaService


/**
 * This Service hold a pool of instance of jahia.tools.FileWatcher Class. 
 * Each Thread are identified by a name and accessible through this name.
 * Threads are added in an Hashtable registry.
 * 
 * @author Khue ng
 * @version 1.0
 */
public abstract class JahiaFileWatcherService extends JahiaService {


   /**
    * addFileWatcher
    *
    * @param (String) threadName, the Name to identify this thread
    * @param (String) fullFolderPath, the real path to the folder to watch
    * @param (boolean) checkDate, check new fle by last modif date
    *
    * @param (long) intetal, the interval in millis
    */
   public abstract void addFileWatcher(  String threadName,
                                         String fullFolderPath, 
                                         boolean checkDate,           
                                         long   interval,
                                         boolean fileOny 
                                      ) throws JahiaException;


   /**
    * Call the start method of the thread
    * @param (String) threadName, the Name to identify this thread
    */
   public abstract void startFileWatcher(  String threadName ) throws JahiaException;


   /**
    * Register an Observer Thread with an Observable Thread
    *
    * @param (String) threadName, the Name of Observable object 
    * @param (Observer) the observer object
    */
   public abstract void registerObserver( String threadName,
                                          Observer obs
                                        );



   

} // end JahiaFileWatcherService