<?php
require_once 'util/Config.php';
class Logger{
	# Singleton
	static $instance = null;

	# members
	var $facility = LOG_LOCAL5;
	var $default_prio = LOG_DEBUG;
	
	static function getInstance() {
		if ( Logger::$instance == null ) {
			Logger::$instance = new Logger();
			//self::$instance->init();
		}
		return Logger::$instance;
	}
	
	function __construct() {
		// check configuration data
		$config = Config::getInstance();
		$this->facility = $config->getConfig("Syslog::facility", $this->facility);
		$this->default_prio = $config->getConfig("Syslog::default_prio", $this->default_prio);
	}
	
	function stripComponent( $comp ) {
	    $items = explode("/", $comp);
	    return end($items);
	}
	
	function log( $comp, $string , $prio=null) {
	    $curr_prio = $this->default_prio;
	    if ($prio) $curr_prio = $prio;
	    syslog($this->facility | $curr_prio, $this->stripComponent($comp)." : $string");
	}

	function logException( $comp, Exception $e ) {
	    syslog($this->facility | LOG_ALERT, "Exception in $comp");
	    syslog($this->facility | LOG_ALERT, $e->getMessage());
	    syslog($this->facility | LOG_ALERT, $e->getTraceAsString());
	}
	
}
?>