审查视图

simplewind/vendor/phpoffice/phpexcel/Classes/PHPExcel/CalcEngine/Logger.php 3.9 KB
董瑞恩 authored
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153
<?php
/**
 * PHPExcel
 *
 * Copyright (c) 2006 - 2014 PHPExcel
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category   PHPExcel
 * @package    PHPExcel_Calculation
 * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license	http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
 * @version	##VERSION##, ##DATE##
 */

/**
 * PHPExcel_CalcEngine_Logger
 *
 * @category	PHPExcel
 * @package		PHPExcel_Calculation
 * @copyright	Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
 */
class PHPExcel_CalcEngine_Logger {

	/**
	 * Flag to determine whether a debug log should be generated by the calculation engine
	 *		If true, then a debug log will be generated
	 *		If false, then a debug log will not be generated
	 *
	 * @var boolean
	 */
	private $_writeDebugLog = FALSE;

	/**
	 * Flag to determine whether a debug log should be echoed by the calculation engine
	 *		If true, then a debug log will be echoed
	 *		If false, then a debug log will not be echoed
	 * A debug log can only be echoed if it is generated
	 *
	 * @var boolean
	 */
	private $_echoDebugLog = FALSE;

	/**
	 * The debug log generated by the calculation engine
	 *
	 * @var string[]
	 */
	private $_debugLog = array();

	/**
	 * The calculation engine cell reference stack
	 *
	 * @var PHPExcel_CalcEngine_CyclicReferenceStack
	 */
	private $_cellStack;

	
	/**
	 * Instantiate a Calculation engine logger
	 *
	 * @param  PHPExcel_CalcEngine_CyclicReferenceStack $stack
	 */
	public function __construct(PHPExcel_CalcEngine_CyclicReferenceStack $stack) {
		$this->_cellStack = $stack;
	}

	/**
	 * Enable/Disable Calculation engine logging
	 *
	 * @param  boolean $pValue
	 */
	public function setWriteDebugLog($pValue = FALSE) {
		$this->_writeDebugLog = $pValue;
	}

	/**
	 * Return whether calculation engine logging is enabled or disabled
	 *
	 * @return  boolean
	 */
	public function getWriteDebugLog() {
		return $this->_writeDebugLog;
	}

	/**
	 * Enable/Disable echoing of debug log information
	 *
	 * @param  boolean $pValue
	 */
	public function setEchoDebugLog($pValue = FALSE) {
		$this->_echoDebugLog = $pValue;
	}

	/**
	 * Return whether echoing of debug log information is enabled or disabled
	 *
	 * @return  boolean
	 */
	public function getEchoDebugLog() {
		return $this->_echoDebugLog;
	}

	/**
	 * Write an entry to the calculation engine debug log
	 */
	public function writeDebugLog() {
		//	Only write the debug log if logging is enabled
		if ($this->_writeDebugLog) {
			$message = implode(func_get_args());
			$cellReference = implode(' -> ', $this->_cellStack->showStack());
			if ($this->_echoDebugLog) {
				echo $cellReference, 
					($this->_cellStack->count() > 0 ? ' => ' : ''), 
					$message, 
					PHP_EOL;
			}
			$this->_debugLog[] = $cellReference . 
				($this->_cellStack->count() > 0 ? ' => ' : '') . 
				$message;
		}
	}	//	function _writeDebug()

	/**
	 * Clear the calculation engine debug log
	 */
	public function clearLog() {
		$this->_debugLog = array();
	}	//	function flushLogger()

	/**
	 * Return the calculation engine debug log
	 *
	 * @return  string[]
	 */
	public function getLog() {
		return $this->_debugLog;
	}	//	function flushLogger()

}	//	class PHPExcel_CalcEngine_Logger