1 files changed, 280 insertions, 0 deletions

diff --git a/admin/survey/excel/PHPExcel/CachedObjectStorage/APC.php b/admin/survey/excel/PHPExcel/CachedObjectStorage/APC.php
new file mode 100644
index 0000000..cda4d3b
--- /dev/null
+++ b/admin/survey/excel/PHPExcel/CachedObjectStorage/APC.php
@@ -0,0 +1,280 @@
+<?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_APC

+ *

+ * @category   PHPExcel

+ * @package    PHPExcel_CachedObjectStorage

+ * @copyright  Copyright (c) 2006 - 2012 PHPExcel (http://www.codeplex.com/PHPExcel)

+ */

+class PHPExcel_CachedObjectStorage_APC extends PHPExcel_CachedObjectStorage_CacheBase implements PHPExcel_CachedObjectStorage_ICache {

+

+	/**

+	 * Prefix used to uniquely identify cache data for this worksheet

+	 *

+	 * @access	private

+	 * @var string

+	 */

+	private $_cachePrefix = null;

+

+	/**

+	 * Cache timeout

+	 *

+	 * @access	private

+	 * @var integer

+	 */

+	private $_cacheTime = 600;

+

+

+    /**

+     * Store cell data in cache for the current cell object if it's "dirty",

+     *     and the 'nullify' the current cell object

+     *

+	 * @access	private

+	 * @return	void

+     * @throws	Exception

+     */

+	private function _storeData() {

+		if ($this->_currentCellIsDirty) {

+			$this->_currentObject->detach();

+

+			if (!apc_store($this->_cachePrefix.$this->_currentObjectID.'.cache',serialize($this->_currentObject),$this->_cacheTime)) {

+				$this->__destruct();

+				throw new Exception('Failed to store cell '.$this->_currentObjectID.' in APC');

+			}

+			$this->_currentCellIsDirty = false;

+		}

+		$this->_currentObjectID = $this->_currentObject = null;

+	}	//	function _storeData()

+

+

+    /**

+     * Add or Update a cell in cache identified by coordinate address

+     *

+	 * @access	public

+     * @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?

+	 *

+	 * @access	public

+	 * @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 apc

+			$success = apc_fetch($this->_cachePrefix.$pCoord.'.cache');

+			if ($success === false) {

+				//	Entry no longer exists in APC, so clear it from the cache array

+				parent::deleteCacheData($pCoord);

+				throw new Exception('Cell entry '.$pCoord.' no longer exists in APC');

+			}

+			return true;

+		}

+		return false;

+	}	//	function isDataSet()

+

+

+    /**

+     * Get cell at a specific coordinate

+     *

+	 * @access	public

+     * @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)) {

+			$obj = apc_fetch($this->_cachePrefix.$pCoord.'.cache');

+			if ($obj === false) {

+				//	Entry no longer exists in APC, so clear it from the cache array

+				parent::deleteCacheData($pCoord);

+				throw new Exception('Cell entry '.$pCoord.' no longer exists in APC');

+			}

+		} 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

+     *

+	 * @access	public

+     * @param	string			$pCoord		Coordinate address of the cell to delete

+     * @throws	Exception

+     */

+	public function deleteCacheData($pCoord) {

+		//	Delete the entry from APC

+		apc_delete($this->_cachePrefix.$pCoord.'.cache');

+

+		//	Delete the entry from our cell address array

+		parent::deleteCacheData($pCoord);

+	}	//	function deleteCacheData()

+

+

+	/**

+	 * Clone the cell collection

+	 *

+	 * @access	public

+	 * @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) {

+				$obj = apc_fetch($this->_cachePrefix.$cellID.'.cache');

+				if ($obj === false) {

+					//	Entry no longer exists in APC, so clear it from the cache array

+					parent::deleteCacheData($cellID);

+					throw new Exception('Cell entry '.$cellID.' no longer exists in APC');

+				}

+				if (!apc_store($newCachePrefix.$cellID.'.cache',$obj,$this->_cacheTime)) {

+					$this->__destruct();

+					throw new Exception('Failed to store cell '.$cellID.' in APC');

+				}

+			}

+		}

+		$this->_cachePrefix = $newCachePrefix;

+	}	//	function copyCellCollection()

+

+

+	/**

+	 * Clear the cell collection and disconnect from our parent

+	 *

+	 * @return	void

+	 */

+	public function unsetWorksheetCells() {

+		if ($this->_currentObject !== NULL) {

+			$this->_currentObject->detach();

+			$this->_currentObject = $this->_currentObjectID = null;

+		}

+

+		//	Flush the APC 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) {

+		$cacheTime	= (isset($arguments['cacheTime']))	? $arguments['cacheTime']	: 600;

+

+		if ($this->_cachePrefix === NULL) {

+			$baseUnique = $this->_getUniqueID();

+			$this->_cachePrefix = substr(md5($baseUnique),0,8).'.';

+			$this->_cacheTime = $cacheTime;

+

+			parent::__construct($parent);

+		}

+	}	//	function __construct()

+

+

+	/**

+	 * Destroy this cell collection

+	 */

+	public function __destruct() {

+		$cacheList = $this->getCellList();

+		foreach($cacheList as $cellID) {

+			apc_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('apc_store')) {

+			return false;

+		}

+		if (apc_sma_info() === false) {

+			return false;

+		}

+

+		return true;

+	}

+

+}