www.gusucode.com > iWebshop开源PHP商城系统 v2.8源码程序 > iwebshop/lib/log/log_factory_class.php

    <?php
/**
 * @copyright Copyright(c) 2010 jooyea.cn
 * @file log_factory_class.php
 * @brief 日志接口文件
 * @author webning
 * @date 2010-12-09
 * @version 0.6
 */

/**
 * @brief ILogFactory 日志工厂类，负责生成日志对象，由配制文件负责日志的存储设备
 * @class ILogFactory
 */
class ILogFactory
{
    private static $log      = null;         //日志对象
    private static $logClass = array('file' => 'IFileLog' , 'db' => 'IDBLog');

    /**
     * @brief   生成日志处理对象，包换各种介质的日志处理对象,单例模式
     * @logType string $logType 日志类型
     * @return  object 日志对象
     */
    public static function getInstance($logType = '')
    {
    	$className = isset(self::$logClass[$logType]) ? self::$logClass[$logType] : '';
    	if(!class_exists($className))
    	{
    		throw new IException('the log class is not exists',403);
    	}

    	if(!self::$log instanceof $className)
    	{
    		self::$log = new $className;
    	}
    	return self::$log;
    }

    private function __construct(){}
    private function __clone(){}
}
?>