/[cvs]/nfo/php/libs/net.php.pear/Log/observer.php
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revision 1.1 by cvsjoko, Fri Oct 25 15:15:23 2002 UTC revision 1.2 by joko, Wed Feb 5 21:48:31 2003 UTC
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1  <?php  <?php
2  // $Horde: horde/lib/Log/observer.php,v 1.5 2000/06/28 21:36:13 jon Exp $  // $Id$
3    // $Horde: horde/lib/Log/observer.php,v 1.5 2000/06/28 21:36:13 jon Exp $
4  /**  
5   * The Log_observer:: class implements the Observer end of a  /**
6   * Subject-Observer pattern for watching log activity and taking   * The Log_observer:: class implements the Observer end of a
7   * actions on exceptional events.   * Subject-Observer pattern for watching log activity and taking
8   *   * actions on exceptional events.
9   * @author  Chuck Hagenbuch <chuck@horde.org>   *
10   * @version $Revision$   * @author  Chuck Hagenbuch <chuck@horde.org>
11   * @since   Horde 1.3   * @version $Revision$
12   */   * @since   Horde 1.3
13  class Log_observer {   * @package Log
14         */
15      // {{{ properties  class Log_observer {
16        
17      /** The minimum priority level of message that we want to hear      /**
18          about. 0 (LOG_EMERG) is the highest priority, so we will only      * The minimum priority level of message that we want to hear
19          hear messages with an integer priority value less than or      * about. PEAR_LOG_EMERG is the highest priority, so we will only
20          equal to ours. It defaults to LOG_INFO, which listens to      * hear messages with an integer priority value less than or
21          everything except LOG_DEBUG. */      * equal to ours. It defaults to PEAR_LOG_INFO, which listens to
22      var $priority = LOG_INFO;      * everything except PEAR_LOG_DEBUG.
23                * @var string
24      // }}}      */
25                var $_priority = PEAR_LOG_INFO;
26            
27          // {{{ constructor  
28          /**      /**
29           * Basic Log_observer instance that just prints out messages       * Basic Log_observer instance that just prints out messages
30           * received.       * received.
31           */       * @param string $priority priority level of message
32          function Log_observer ($priority = LOG_INFO) {       * @access public
33                  $this->priority = $priority;       */
34          }      function Log_observer($priority = PEAR_LOG_INFO)
35          // }}}      {
36                    $this->_priority = $priority;
37                }
38      // {{{ factory()  
39      /**      /**
40       * Attempts to return a concrete Log_observer instance of the       * Attempts to return a concrete Log_observer instance of the
41       * specified type.       * specified type.
42       *       *
43       * @param $observer_type    The type of concrate Log_observer subclass       * @param string $observer_type  The type of concrate Log_observer subclass
44       *                          to return.  We will attempt to dynamically       *                          to return.  We will attempt to dynamically
45       *                          include the code for this subclass.       *                          include the code for this subclass.
46       * @return                  The newly created concrete Log_observer       * @param string $priority priority level of message
47       * instance, or an false on an error.  */       * @return object Log_observer  The newly created concrete Log_observer
48      function factory ($observer_type, $priority = LOG_INFO) {       * instance, or an false on an error.
49          $classfile = substr(__FILE__, 0, -(strlen(basename(__FILE__)))) . 'Log/' . $observer_type . '.php';       */
50          if (file_exists($classfile)) {      function factory($observer_type, $priority = PEAR_LOG_INFO)
51              include_once $classfile;      {
52              $class = 'Log_' . $observer_type;          $classfile = substr(__FILE__, 0, -(strlen(basename(__FILE__)))) . 'Log/' . $observer_type . '.php';
53              return new $observer_type($priority);          if (file_exists($classfile)) {
54          } else {              include_once $classfile;
55              return false;              $class = 'Log_' . $observer_type;
56          }              return new $observer_type($priority);
57      }          } else {
58      // }}}              return false;
59                }
60      // {{{ notify()      }
61      /**  
62       * This is a stub method to make sure that LogObserver classes do      /**
63       * something when they are notified of a message. The default       * This is a stub method to make sure that LogObserver classes do
64       * behavior is to just print the message, which is obviously not       * something when they are notified of a message. The default
65       * desireable in practically any situation - which is why you need       * behavior is to just print the message, which is obviously not
66       * to override this method. :)       * desireable in practically any situation - which is why you need
67       *       * to override this method. :)
68       * @param $messageOb    A hash containing all information - the text       *
69       *                      message itself, the priority, what log it came       * @param array $messageOb    A hash containing all information - the text
70       *                      from, etc.       *                      message itself, the priority, what log it came
71       */       *                      from, etc.
72      function notify ($messageOb) {       */
73          print_r($messageOb);      function notify($messageOb)
74      }      {
75      // }}}          print_r($messageOb);
76            }
77  }  }
78    
79  ?>  ?>
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