net.php.pear/Log/composite.php

<?php
// $Id: composite.php,v 1.8 2002/12/02 05:23:00 jon Exp $
// $Horde: horde/lib/Log/composite.php,v 1.2 2000/06/28 21:36:13 jon Exp $

/**
 * The Log_composite:: class implements a Composite pattern which
 * allows multiple Log implementations to get sent the same events.
 *
 * @author  Chuck Hagenbuch <chuck@horde.org>
 * @version $Revision: 1.8 $
 * @since Horde 1.3
 * @package Log 
 */

class Log_composite extends Log {

    /** 
    * Array holding all Log instances 
    * which should be sent events sent to the composite. 
    * @var array
    */
    var $_children = array();


    /**
     * Constructs a new composite Log object.
     * 
     * @param boolean $name     This is ignored.
     * @param boolean $ident    This is ignored.
     * @param boolean $conf     This is ignored.
     * @param boolean $maxLevel This is ignored.
     * @access public
     */
    function Log_composite($name = false, $ident = false, $conf = false,
                           $maxLevel = PEAR_LOG_DEBUG)
    {
    }
    
    /**
     * Open the log connections of each and every child of this
     * composite.
     * @access public     
     */
    function open()
    {
        if (!$this->_opened) {
            reset($this->_children);
            foreach ($this->_children as $child) {
                $child->open();
            }
        }
    }

    /**
     * If we've gone ahead and opened each child, go through and close
     * each child.
     * @access public     
     */
    function close()
    {
        if ($this->_opened) {
            reset($this->_children);
            foreach ($this->_children as $child) {
                $child->close();
            }
        }
    }

    /**
     * Sends $message and $priority to every child of this composite.
     * 
     * @param string $message  The textual message to be logged.
     * @param string $priority (optional) The priority of the message. Valid
     *                  values are: PEAR_LOG_EMERG, PEAR_LOG_ALERT,
     *                  PEAR_LOG_CRIT, PEAR_LOG_ERR, PEAR_LOG_WARNING,
     *                  PEAR_LOG_NOTICE, PEAR_LOG_INFO, and PEAR_LOG_DEBUG.
     *                  The default is PEAR_LOG_INFO.
     * @return boolean  True on success or false on failure.
     */
    function log($message, $priority = PEAR_LOG_INFO)
    {
        reset($this->_children);
        foreach ($this->_children as $child) {
            $child->log($message, $priority);
        }
        
        $this->notifyAll(array('priority' => $priority, 'message' => $message));

        return true;
    }

    /**
     * @return boolean true if this is a composite class, false
     * otherwise. Always returns true since this is the composite
     * subclass.
     * @access public
     */
    function isComposite()
    {
        return true;
    }

    /**
     * Add a Log instance to the list of children that messages sent
     * to us should be passed on to.
     *
     * @param object Log &$child The Log instance to add.
     * @access public 
     * @return boolean false, if &$child isn't a Log instance    
     */
    function addChild(&$child)
    {
        if (!is_object($child)) {
            return false;
        }

        $child->_childID = uniqid(rand());

        $this->_children[$child->_childID] = &$child;
    }

    /**
     * Remove a Log instance from the list of children that messages
     * sent to us should be passed on to.
     *
     * @param object Log $child The Log instance to remove.
     * @access public     
     */
    function removeChild($child)
    {
        if (isset($this->_children[$child->_childID])) {
            unset($this->_children[$child->_childID]);
        }
    }
}

?>
1	<?php
2	// $Id: composite.php,v 1.8 2002/12/02 05:23:00 jon Exp $
3	// $Horde: horde/lib/Log/composite.php,v 1.2 2000/06/28 21:36:13 jon Exp $
4
5	/**
6	* The Log_composite:: class implements a Composite pattern which
7	* allows multiple Log implementations to get sent the same events.
8	*
9	* @author Chuck Hagenbuch <chuck@horde.org>
10	* @version $Revision: 1.8 $
11	* @since Horde 1.3
12	* @package Log
13	*/
14
15	class Log_composite extends Log {
16
17	/**
18	* Array holding all Log instances
19	* which should be sent events sent to the composite.
20	* @var array
21	*/
22	var $_children = array();
23
24
25	/**
26	* Constructs a new composite Log object.
27	*
28	* @param boolean $name This is ignored.
29	* @param boolean $ident This is ignored.
30	* @param boolean $conf This is ignored.
31	* @param boolean $maxLevel This is ignored.
32	* @access public
33	*/
34	function Log_composite($name = false, $ident = false, $conf = false,
35	$maxLevel = PEAR_LOG_DEBUG)
36	{
37	}
38
39	/**
40	* Open the log connections of each and every child of this
41	* composite.
42	* @access public
43	*/
44	function open()
45	{
46	if (!$this->_opened) {
47	reset($this->_children);
48	foreach ($this->_children as $child) {
49	$child->open();
50	}
51	}
52	}
53
54	/**
55	* If we've gone ahead and opened each child, go through and close
56	* each child.
57	* @access public
58	*/
59	function close()
60	{
61	if ($this->_opened) {
62	reset($this->_children);
63	foreach ($this->_children as $child) {
64	$child->close();
65	}
66	}
67	}
68
69	/**
70	* Sends $message and $priority to every child of this composite.
71	*
72	* @param string $message The textual message to be logged.
73	* @param string $priority (optional) The priority of the message. Valid
74	* values are: PEAR_LOG_EMERG, PEAR_LOG_ALERT,
75	* PEAR_LOG_CRIT, PEAR_LOG_ERR, PEAR_LOG_WARNING,
76	* PEAR_LOG_NOTICE, PEAR_LOG_INFO, and PEAR_LOG_DEBUG.
77	* The default is PEAR_LOG_INFO.
78	* @return boolean True on success or false on failure.
79	*/
80	function log($message, $priority = PEAR_LOG_INFO)
81	{
82	reset($this->_children);
83	foreach ($this->_children as $child) {
84	$child->log($message, $priority);
85	}
86
87	$this->notifyAll(array('priority' => $priority, 'message' => $message));
88
89	return true;
90	}
91
92	/**
93	* @return boolean true if this is a composite class, false
94	* otherwise. Always returns true since this is the composite
95	* subclass.
96	* @access public
97	*/
98	function isComposite()
99	{
100	return true;
101	}
102
103	/**
104	* Add a Log instance to the list of children that messages sent
105	* to us should be passed on to.
106	*
107	* @param object Log &$child The Log instance to add.
108	* @access public
109	* @return boolean false, if &$child isn't a Log instance
110	*/
111	function addChild(&$child)
112	{
113	if (!is_object($child)) {
114	return false;
115	}
116
117	$child->_childID = uniqid(rand());
118
119	$this->_children[$child->_childID] = &$child;
120	}
121
122	/**
123	* Remove a Log instance from the list of children that messages
124	* sent to us should be passed on to.
125	*
126	* @param object Log $child The Log instance to remove.
127	* @access public
128	*/
129	function removeChild($child)
130	{
131	if (isset($this->_children[$child->_childID])) {
132	unset($this->_children[$child->_childID]);
133	}
134	}
135	}
136
137	?>
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