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myswap / 1 / code / ThinkPHP / Lib / Think / Exception / ThinkException.class.php

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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2010 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
// $Id$

/**
 +------------------------------------------------------------------------------
 * ThinkPHP系统异常基类
 +------------------------------------------------------------------------------
 * @category   Think
 * @package  Think
 * @subpackage  Exception
 * @author    liu21st <liu21st@gmail.com>
 * @version   $Id$
 +------------------------------------------------------------------------------
 */
class ThinkException extends Exception
{//类定义开始

    /**
     +----------------------------------------------------------
     * 异常类型
     +----------------------------------------------------------
     * @var string
     * @access private
     +----------------------------------------------------------
     */
    private $type;

    // 是否存在多余调试信息
    private $extra;

    /**
     +----------------------------------------------------------
     * 架构函数
     +----------------------------------------------------------
     * @access public
     +----------------------------------------------------------
     * @param string $message  异常信息
     +----------------------------------------------------------
     */
    public function __construct($message,$code=0,$extra=false)
    {
        parent::__construct($message,$code);
        $this->type = get_class($this);
        $this->extra = $extra;
    }

    /**
     +----------------------------------------------------------
     * 异常输出 所有异常处理类均通过__toString方法输出错误
     * 每次异常都会写入系统日志
     * 该方法可以被子类重载
     +----------------------------------------------------------
     * @access public
     +----------------------------------------------------------
     * @return array
     +----------------------------------------------------------
     */
    public function __toString()
    {
        $trace = $this->getTrace();
        if($this->extra)
            // 通过throw_exception抛出的异常要去掉多余的调试信息
            array_shift($trace);
        $this->class = $trace[0]['class'];
        $this->function = $trace[0]['function'];
        $this->file = $trace[0]['file'];
        $this->line = $trace[0]['line'];
        $file   =   file($this->file);
        $traceInfo='';
        $time = date("y-m-d H:i:m");
        foreach($trace as $t) {
            $traceInfo .= '['.$time.'] '.$t['file'].' ('.$t['line'].') ';
            $traceInfo .= $t['class'].$t['type'].$t['function'].'(';
            $traceInfo .= implode(', ', $t['args']);
            $traceInfo .=")\n";
        }
        $error['message']   = $this->message;
        $error['type']      = $this->type;
        $error['detail']    = L('_MODULE_').'['.MODULE_NAME.'] '.L('_ACTION_').'['.ACTION_NAME.']'."\n";
        $error['detail']   .=   ($this->line-2).': '.$file[$this->line-3];
        $error['detail']   .=   ($this->line-1).': '.$file[$this->line-2];
        $error['detail']   .=   '<font color="#FF6600" >'.($this->line).': <strong>'.$file[$this->line-1].'</strong></font>';
        $error['detail']   .=   ($this->line+1).': '.$file[$this->line];
        $error['detail']   .=   ($this->line+2).': '.$file[$this->line+1];
        $error['class']     =   $this->class;
        $error['function']  =   $this->function;
        $error['file']      = $this->file;
        $error['line']      = $this->line;
        $error['trace']     = $traceInfo;

        // 记录 Exception 日志
        if(C('LOG_EXCEPTION_RECORD')) {
            Log::Write('('.$this->type.') '.$this->message);
        }

        return $error ;
    }

}//类定义结束
?>