diff options
Diffstat (limited to 'admin/survey/excel/PHPExcel/CachedObjectStorage/Memcache.php')
| -rw-r--r-- | admin/survey/excel/PHPExcel/CachedObjectStorage/Memcache.php | 298 |
1 files changed, 0 insertions, 298 deletions
diff --git a/admin/survey/excel/PHPExcel/CachedObjectStorage/Memcache.php b/admin/survey/excel/PHPExcel/CachedObjectStorage/Memcache.php deleted file mode 100644 index 3e5fcb4..0000000 --- a/admin/survey/excel/PHPExcel/CachedObjectStorage/Memcache.php +++ /dev/null @@ -1,298 +0,0 @@ -<?php
-/**
- * PHPExcel
- *
- * Copyright (c) 2006 - 2012 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_CachedObjectStorage
- * @copyright Copyright (c) 2006 - 2012 PHPExcel (http://www.codeplex.com/PHPExcel)
- * @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
- * @version 1.7.8, 2012-10-12
- */
-
-
-/**
- * PHPExcel_CachedObjectStorage_Memcache
- *
- * @category PHPExcel
- * @package PHPExcel_CachedObjectStorage
- * @copyright Copyright (c) 2006 - 2012 PHPExcel (http://www.codeplex.com/PHPExcel)
- */
-class PHPExcel_CachedObjectStorage_Memcache extends PHPExcel_CachedObjectStorage_CacheBase implements PHPExcel_CachedObjectStorage_ICache {
-
- /**
- * Prefix used to uniquely identify cache data for this worksheet
- *
- * @var string
- */
- private $_cachePrefix = null;
-
- /**
- * Cache timeout
- *
- * @var integer
- */
- private $_cacheTime = 600;
-
- /**
- * Memcache interface
- *
- * @var resource
- */
- private $_memcache = null;
-
-
- /**
- * Store cell data in cache for the current cell object if it's "dirty",
- * and the 'nullify' the current cell object
- *
- * @return void
- * @throws Exception
- */
- private function _storeData() {
- if ($this->_currentCellIsDirty) {
- $this->_currentObject->detach();
-
- $obj = serialize($this->_currentObject);
- if (!$this->_memcache->replace($this->_cachePrefix.$this->_currentObjectID.'.cache',$obj,NULL,$this->_cacheTime)) {
- if (!$this->_memcache->add($this->_cachePrefix.$this->_currentObjectID.'.cache',$obj,NULL,$this->_cacheTime)) {
- $this->__destruct();
- throw new Exception('Failed to store cell '.$this->_currentObjectID.' in MemCache');
- }
- }
- $this->_currentCellIsDirty = false;
- }
- $this->_currentObjectID = $this->_currentObject = null;
- } // function _storeData()
-
-
- /**
- * Add or Update a cell in cache identified by coordinate address
- *
- * @param string $pCoord Coordinate address of the cell to update
- * @param PHPExcel_Cell $cell Cell to update
- * @return void
- * @throws Exception
- */
- public function addCacheData($pCoord, PHPExcel_Cell $cell) {
- if (($pCoord !== $this->_currentObjectID) && ($this->_currentObjectID !== null)) {
- $this->_storeData();
- }
- $this->_cellCache[$pCoord] = true;
-
- $this->_currentObjectID = $pCoord;
- $this->_currentObject = $cell;
- $this->_currentCellIsDirty = true;
-
- return $cell;
- } // function addCacheData()
-
-
- /**
- * Is a value set in the current PHPExcel_CachedObjectStorage_ICache for an indexed cell?
- *
- * @param string $pCoord Coordinate address of the cell to check
- * @return void
- * @return boolean
- */
- public function isDataSet($pCoord) {
- // Check if the requested entry is the current object, or exists in the cache
- if (parent::isDataSet($pCoord)) {
- if ($this->_currentObjectID == $pCoord) {
- return true;
- }
- // Check if the requested entry still exists in Memcache
- $success = $this->_memcache->get($this->_cachePrefix.$pCoord.'.cache');
- if ($success === false) {
- // Entry no longer exists in Memcache, so clear it from the cache array
- parent::deleteCacheData($pCoord);
- throw new Exception('Cell entry '.$pCoord.' no longer exists in MemCache');
- }
- return true;
- }
- return false;
- } // function isDataSet()
-
-
- /**
- * Get cell at a specific coordinate
- *
- * @param string $pCoord Coordinate of the cell
- * @throws Exception
- * @return PHPExcel_Cell Cell that was found, or null if not found
- */
- public function getCacheData($pCoord) {
- if ($pCoord === $this->_currentObjectID) {
- return $this->_currentObject;
- }
- $this->_storeData();
-
- // Check if the entry that has been requested actually exists
- if (parent::isDataSet($pCoord)) {
- $obj = $this->_memcache->get($this->_cachePrefix.$pCoord.'.cache');
- if ($obj === false) {
- // Entry no longer exists in Memcache, so clear it from the cache array
- parent::deleteCacheData($pCoord);
- throw new Exception('Cell entry '.$pCoord.' no longer exists in MemCache');
- }
- } else {
- // Return null if requested entry doesn't exist in cache
- return null;
- }
-
- // Set current entry to the requested entry
- $this->_currentObjectID = $pCoord;
- $this->_currentObject = unserialize($obj);
- // Re-attach the parent worksheet
- $this->_currentObject->attach($this->_parent);
-
- // Return requested entry
- return $this->_currentObject;
- } // function getCacheData()
-
-
- /**
- * Delete a cell in cache identified by coordinate address
- *
- * @param string $pCoord Coordinate address of the cell to delete
- * @throws Exception
- */
- public function deleteCacheData($pCoord) {
- // Delete the entry from Memcache
- $this->_memcache->delete($this->_cachePrefix.$pCoord.'.cache');
-
- // Delete the entry from our cell address array
- parent::deleteCacheData($pCoord);
- } // function deleteCacheData()
-
-
- /**
- * Clone the cell collection
- *
- * @param PHPExcel_Worksheet $parent The new worksheet
- * @return void
- */
- public function copyCellCollection(PHPExcel_Worksheet $parent) {
- parent::copyCellCollection($parent);
- // Get a new id for the new file name
- $baseUnique = $this->_getUniqueID();
- $newCachePrefix = substr(md5($baseUnique),0,8).'.';
- $cacheList = $this->getCellList();
- foreach($cacheList as $cellID) {
- if ($cellID != $this->_currentObjectID) {
- $obj = $this->_memcache->get($this->_cachePrefix.$cellID.'.cache');
- if ($obj === false) {
- // Entry no longer exists in Memcache, so clear it from the cache array
- parent::deleteCacheData($cellID);
- throw new Exception('Cell entry '.$cellID.' no longer exists in MemCache');
- }
- if (!$this->_memcache->add($newCachePrefix.$cellID.'.cache',$obj,NULL,$this->_cacheTime)) {
- $this->__destruct();
- throw new Exception('Failed to store cell '.$cellID.' in MemCache');
- }
- }
- }
- $this->_cachePrefix = $newCachePrefix;
- } // function copyCellCollection()
-
-
- /**
- * Clear the cell collection and disconnect from our parent
- *
- * @return void
- */
- public function unsetWorksheetCells() {
- if(!is_null($this->_currentObject)) {
- $this->_currentObject->detach();
- $this->_currentObject = $this->_currentObjectID = null;
- }
-
- // Flush the Memcache cache
- $this->__destruct();
-
- $this->_cellCache = array();
-
- // detach ourself from the worksheet, so that it can then delete this object successfully
- $this->_parent = null;
- } // function unsetWorksheetCells()
-
-
- /**
- * Initialise this new cell collection
- *
- * @param PHPExcel_Worksheet $parent The worksheet for this cell collection
- * @param array of mixed $arguments Additional initialisation arguments
- */
- public function __construct(PHPExcel_Worksheet $parent, $arguments) {
- $memcacheServer = (isset($arguments['memcacheServer'])) ? $arguments['memcacheServer'] : 'localhost';
- $memcachePort = (isset($arguments['memcachePort'])) ? $arguments['memcachePort'] : 11211;
- $cacheTime = (isset($arguments['cacheTime'])) ? $arguments['cacheTime'] : 600;
-
- if (is_null($this->_cachePrefix)) {
- $baseUnique = $this->_getUniqueID();
- $this->_cachePrefix = substr(md5($baseUnique),0,8).'.';
-
- // Set a new Memcache object and connect to the Memcache server
- $this->_memcache = new Memcache();
- if (!$this->_memcache->addServer($memcacheServer, $memcachePort, false, 50, 5, 5, true, array($this, 'failureCallback'))) {
- throw new Exception('Could not connect to MemCache server at '.$memcacheServer.':'.$memcachePort);
- }
- $this->_cacheTime = $cacheTime;
-
- parent::__construct($parent);
- }
- } // function __construct()
-
-
- /**
- * Memcache error handler
- *
- * @param string $host Memcache server
- * @param integer $port Memcache port
- * @throws Exception
- */
- public function failureCallback($host, $port) {
- throw new Exception('memcache '.$host.':'.$port.' failed');
- }
-
-
- /**
- * Destroy this cell collection
- */
- public function __destruct() {
- $cacheList = $this->getCellList();
- foreach($cacheList as $cellID) {
- $this->_memcache->delete($this->_cachePrefix.$cellID.'.cache');
- }
- } // function __destruct()
-
- /**
- * Identify whether the caching method is currently available
- * Some methods are dependent on the availability of certain extensions being enabled in the PHP build
- *
- * @return boolean
- */
- public static function cacheMethodIsAvailable() {
- if (!function_exists('memcache_add')) {
- return false;
- }
-
- return true;
- }
-
-}
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