cvs: php4 /pear/Log Observer.php observer.php

chagenbu Wed Aug 15 12:11:48 2001 EDT Added files: /php4/pear/Log Observer.php Removed files: /php4/pear/Log observer.php Log: Log_Observer isn't a driver, so capitalize it appropriately, and add a directory for Log_Observer_* subclass examples Index: php4/pear/Log/Observer.php +++ php4/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 when notable events occur. * * @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, $priority = LOG_INFO) { if (empty($observer_type)) { return new Log_Observer($priority); } $observer_type = strtolower(basename($observer_type)); $class = 'Log_Observer_' . $observer_type; if (class_exists($class)) { // The observer subclass has already been defined. return new $class($priority); } $classfile = 'Log/Observer/' . $observer_type . '.php'; @include_once $classfile; if (class_exists($class)) { // We found the class definition somewhere in the include_path. return new $class($priority); } // We failed to find the class definition anywhere. Return false. return false; } // }}} // {{{ notify() /** * This is a stub method to make sure that Log_Observer 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); } // }}} } ?>