cd7f0a1c51
Renamed the factory getCacheStorageMethods() method to getAllCacheStorageMethods(), returning all cache options in the library. Wrote a new factory getCacheStorageMethods() method to return an array of those cache methods that are available with the current build of PHP (extensions tested, etc). Refactored factory initialize() method to use the cacheMethodIsAvailable(), so factoring the logic for testing methods out of the factory. git-svn-id: https://phpexcel.svn.codeplex.com/svn/trunk@83741 2327b42d-5241-43d6-9e2a-de5ac946f064
127 lines
4.0 KiB
PHP
127 lines
4.0 KiB
PHP
<?php
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/**
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* PHPExcel
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*
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* Copyright (c) 2006 - 2011 PHPExcel
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* @category PHPExcel
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* @package PHPExcel_CachedObjectStorage
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* @copyright Copyright (c) 2006 - 2011 PHPExcel (http://www.codeplex.com/PHPExcel)
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* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
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* @version ##VERSION##, ##DATE##
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*/
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/**
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* PHPExcel_CachedObjectStorage_Igbinary
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*
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* @category PHPExcel
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* @package PHPExcel_CachedObjectStorage
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* @copyright Copyright (c) 2006 - 2011 PHPExcel (http://www.codeplex.com/PHPExcel)
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*/
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class PHPExcel_CachedObjectStorage_Igbinary extends PHPExcel_CachedObjectStorage_CacheBase implements PHPExcel_CachedObjectStorage_ICache {
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private function _storeData() {
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if ($this->_currentCellIsDirty) {
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$this->_currentObject->detach();
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$this->_cellCache[$this->_currentObjectID] = igbinary_serialize($this->_currentObject);
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$this->_currentCellIsDirty = false;
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}
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$this->_currentObjectID = $this->_currentObject = null;
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} // function _storeData()
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/**
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* Add or Update a cell in cache identified by coordinate address
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*
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* @param string $pCoord Coordinate address of the cell to update
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* @param PHPExcel_Cell $cell Cell to update
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* @return void
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* @throws Exception
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*/
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public function addCacheData($pCoord, PHPExcel_Cell $cell) {
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if (($pCoord !== $this->_currentObjectID) && ($this->_currentObjectID !== null)) {
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$this->_storeData();
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}
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$this->_currentObjectID = $pCoord;
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$this->_currentObject = $cell;
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$this->_currentCellIsDirty = true;
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return $cell;
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} // function addCacheData()
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/**
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* Get cell at a specific coordinate
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*
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* @param string $pCoord Coordinate of the cell
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* @throws Exception
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* @return PHPExcel_Cell Cell that was found, or null if not found
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*/
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public function getCacheData($pCoord) {
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if ($pCoord === $this->_currentObjectID) {
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return $this->_currentObject;
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}
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$this->_storeData();
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// Check if the entry that has been requested actually exists
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if (!isset($this->_cellCache[$pCoord])) {
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// Return null if requested entry doesn't exist in cache
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return null;
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}
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// Set current entry to the requested entry
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$this->_currentObjectID = $pCoord;
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$this->_currentObject = igbinary_unserialize($this->_cellCache[$pCoord]);
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// Re-attach the parent worksheet
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$this->_currentObject->attach($this->_parent);
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// Return requested entry
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return $this->_currentObject;
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} // function getCacheData()
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public function unsetWorksheetCells() {
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if(!is_null($this->_currentObject)) {
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$this->_currentObject->detach();
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$this->_currentObject = $this->_currentObjectID = null;
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}
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$this->_cellCache = array();
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// detach ourself from the worksheet, so that it can then delete this object successfully
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$this->_parent = null;
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} // function unsetWorksheetCells()
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/**
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* Identify whether the caching method is currently available
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* Some methods are dependent on the availability of certain extensions being enabled in the PHP build
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*
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* @return boolean
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*/
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public static function cacheMethodIsAvailable() {
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if (!function_exists('igbinary_serialize')) {
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return false;
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}
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return true;
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}
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}
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