JahiaFileWatcherService


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5   //    _______|  /--|    |    |    -   \  _    |    :    -   \_________
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7   //           |__\---\_____________:______:    :____|____:_____\
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9   //
10  //                 . . . i n   j a h i a   w e   t r u s t . . .
11  //
12  //
13  //
14  //  JahiaFileWatcherService
15  //
16  //  NK      12.01.2001
17  //
18  //
19  
20  
21  package org.jahia.services.deamons.filewatcher;
22  
23  
24  import org.jahia.exceptions.JahiaException;
25  import org.jahia.services.JahiaService;
26  
27  import java.util.Observer  ;
28  
29  
30  /**
31   * This Service hold a pool of instance of jahia.tools.FileWatcher Class.
32   * Each Thread are identified by a name and accessible through this name.
33   * Threads are added in an Hashtable registry.
34   *
35   * @author Khue ng
36   * @version 1.0
37   */
38  public abstract class JahiaFileWatcherService extends JahiaService {
39  
40  
41      /**
42       * addFileWatcher
43       *
44       * @param (String)  threadName, the Name to identify this thread
45       * @param (String)  fullFolderPath, the real path to the folder to watch
46       * @param (boolean) checkDate, check new fle by last modif date
47       * @param (long)    intetal, the interval in millis
48       */
49      public abstract void addFileWatcher (String   threadName,
50                                           String   fullFolderPath,
51                                           boolean checkDate,
52                                           long interval,
53                                           boolean fileOny
54                                           ) throws JahiaException;
55  
56  
57      /**
58       * Call the start method of the thread
59       *
60       * @param (String) threadName, the Name to identify this thread
61       */
62      public abstract void startFileWatcher (String   threadName) throws JahiaException;
63  
64      /**
65       * Stops the file watcher thread. Should be called when shutting down the
66      * application.
67       * @param threadName String the name of the thread to shutdown.
68       * @throws JahiaException
69       */
70      public abstract void stopFileWatcher(String   threadName) throws JahiaException;
71  
72  
73      /**
74       * Register an Observer Thread with an Observable Thread
75       *
76       * @param (String)   threadName, the Name of Observable object
77       * @param (Observer) the observer object
78       */
79      public abstract void registerObserver (String   threadName,
80                                             Observer   obs
81                                             );
82  
83      public abstract void shutdown ()
84          throws JahiaException;
85  
86  
87  } // end JahiaFileWatcherService
88
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