net.php.pear/Log/observer.php

<?php
// $Horde: horde/lib/Log/observer.php,v 1.5 2000/06/28 21:36:13 jon Exp $

/**
 * The Log_observer:: class implements the Observer end of a
 * Subject-Observer pattern for watching log activity and taking
 * actions on exceptional events.
 *
 * @author  Chuck Hagenbuch <chuck@horde.org>
 * @version $Revision: 1.1 $
 * @since   Horde 1.3
 */
class Log_observer {
    
    // {{{ properties
    
    /** The minimum priority level of message that we want to hear
        about. 0 (LOG_EMERG) is the highest priority, so we will only
        hear messages with an integer priority value less than or
        equal to ours. It defaults to LOG_INFO, which listens to
        everything except LOG_DEBUG. */
    var $priority = LOG_INFO;
        
    // }}}
        
        
        // {{{ constructor
        /**
         * Basic Log_observer instance that just prints out messages
         * received.
         */
        function Log_observer ($priority = LOG_INFO) {
                $this->priority = $priority;
        }
        // }}}
        
        
    // {{{ factory()
    /**
     * Attempts to return a concrete Log_observer instance of the
     * specified type.
     * 
     * @param $observer_type    The type of concrate Log_observer subclass
     *                          to return.  We will attempt to dynamically
     *                          include the code for this subclass.
     * @return                  The newly created concrete Log_observer
     * instance, or an false on an error.  */
    function factory ($observer_type, $priority = LOG_INFO) {
        $classfile = substr(__FILE__, 0, -(strlen(basename(__FILE__)))) . 'Log/' . $observer_type . '.php';
        if (file_exists($classfile)) {
            include_once $classfile;
            $class = 'Log_' . $observer_type;
            return new $observer_type($priority);
        } else {
            return false;
        }
    }
    // }}}
    
    // {{{ notify()
    /**
     * This is a stub method to make sure that LogObserver classes do
     * something when they are notified of a message. The default
     * behavior is to just print the message, which is obviously not
     * desireable in practically any situation - which is why you need
     * to override this method. :)
     * 
     * @param $messageOb    A hash containing all information - the text
     *                      message itself, the priority, what log it came
     *                      from, etc.
     */
    function notify ($messageOb) {
        print_r($messageOb);
    }
    // }}}
    
}

?>
1	<?php
2	// $Horde: horde/lib/Log/observer.php,v 1.5 2000/06/28 21:36:13 jon Exp $
3
4	/**
5	* The Log_observer:: class implements the Observer end of a
6	* Subject-Observer pattern for watching log activity and taking
7	* actions on exceptional events.
8	*
9	* @author Chuck Hagenbuch <chuck@horde.org>
10	* @version $Revision: 1.1 $
11	* @since Horde 1.3
12	*/
13	class Log_observer {
14
15	// {{{ properties
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
19	hear messages with an integer priority value less than or
20	equal to ours. It defaults to LOG_INFO, which listens to
21	everything except LOG_DEBUG. */
22	var $priority = LOG_INFO;
23
24	// }}}
25
26
27	// {{{ constructor
28	/**
29	* Basic Log_observer instance that just prints out messages
30	* received.
31	*/
32	function Log_observer ($priority = LOG_INFO) {
33	$this->priority = $priority;
34	}
35	// }}}
36
37
38	// {{{ factory()
39	/**
40	* Attempts to return a concrete Log_observer instance of the
41	* specified type.
42	*
43	* @param $observer_type The type of concrate Log_observer subclass
44	* to return. We will attempt to dynamically
45	* include the code for this subclass.
46	* @return The newly created concrete Log_observer
47	* instance, or an false on an error. */
48	function factory ($observer_type, $priority = LOG_INFO) {
49	$classfile = substr(__FILE__, 0, -(strlen(basename(__FILE__)))) . 'Log/' . $observer_type . '.php';
50	if (file_exists($classfile)) {
51	include_once $classfile;
52	$class = 'Log_' . $observer_type;
53	return new $observer_type($priority);
54	} else {
55	return false;
56	}
57	}
58	// }}}
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
64	* behavior is to just print the message, which is obviously not
65	* desireable in practically any situation - which is why you need
66	* to override this method. :)
67	*
68	* @param $messageOb A hash containing all information - the text
69	* message itself, the priority, what log it came
70	* from, etc.
71	*/
72	function notify ($messageOb) {
73	print_r($messageOb);
74	}
75	// }}}
76
77	}
78
79	?>
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