1 files changed, 205 insertions, 0 deletions

diff --git a/admin/survey/excel/PHPExcel/CachedObjectStorage/DiscISAM.php b/admin/survey/excel/PHPExcel/CachedObjectStorage/DiscISAM.php
new file mode 100644
index 0000000..d93ab05
--- /dev/null
+++ b/admin/survey/excel/PHPExcel/CachedObjectStorage/DiscISAM.php
@@ -0,0 +1,205 @@
+<?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_DiscISAM

+ *

+ * @category   PHPExcel

+ * @package    PHPExcel_CachedObjectStorage

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

+ */

+class PHPExcel_CachedObjectStorage_DiscISAM extends PHPExcel_CachedObjectStorage_CacheBase implements PHPExcel_CachedObjectStorage_ICache {

+

+	/**

+	 * Name of the file for this cache

+	 *

+	 * @var string

+	 */

+	private $_fileName = null;

+

+	/**

+	 * File handle for this cache file

+	 *

+	 * @var resource

+	 */

+	private $_fileHandle = null;

+

+	/**

+	 * Directory/Folder where the cache file is located

+	 *

+	 * @var string

+	 */

+	private $_cacheDirectory = 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();

+

+			fseek($this->_fileHandle,0,SEEK_END);

+			$offset = ftell($this->_fileHandle);

+			fwrite($this->_fileHandle, serialize($this->_currentObject));

+			$this->_cellCache[$this->_currentObjectID]	= array('ptr' => $offset,

+																'sz'  => ftell($this->_fileHandle) - $offset

+															   );

+			$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->_currentObjectID = $pCoord;

+		$this->_currentObject = $cell;

+		$this->_currentCellIsDirty = true;

+

+		return $cell;

+	}	//	function addCacheData()

+

+

+    /**

+     * 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 (!isset($this->_cellCache[$pCoord])) {

+			//	Return null if requested entry doesn't exist in cache

+			return null;

+		}

+

+		//	Set current entry to the requested entry

+		$this->_currentObjectID = $pCoord;

+		fseek($this->_fileHandle,$this->_cellCache[$pCoord]['ptr']);

+		$this->_currentObject = unserialize(fread($this->_fileHandle,$this->_cellCache[$pCoord]['sz']));

+		//	Re-attach the parent worksheet

+		$this->_currentObject->attach($this->_parent);

+

+		//	Return requested entry

+		return $this->_currentObject;

+	}	//	function getCacheData()

+

+

+	/**

+	 * 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();

+		$newFileName = $this->_cacheDirectory.'/PHPExcel.'.$baseUnique.'.cache';

+		//	Copy the existing cell cache file

+		copy ($this->_fileName,$newFileName);

+		$this->_fileName = $newFileName;

+		//	Open the copied cell cache file

+		$this->_fileHandle = fopen($this->_fileName,'a+');

+	}	//	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;

+		}

+		$this->_cellCache = array();

+

+		//	detach ourself from the worksheet, so that it can then delete this object successfully

+		$this->_parent = null;

+

+		//	Close down the temporary cache file

+		$this->__destruct();

+	}	//	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) {

+		$this->_cacheDirectory	= ((isset($arguments['dir'])) && ($arguments['dir'] !== NULL))

+									? $arguments['dir']

+									: PHPExcel_Shared_File::sys_get_temp_dir();

+

+		parent::__construct($parent);

+		if (is_null($this->_fileHandle)) {

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

+			$this->_fileName = $this->_cacheDirectory.'/PHPExcel.'.$baseUnique.'.cache';

+			$this->_fileHandle = fopen($this->_fileName,'a+');

+		}

+	}	//	function __construct()

+

+

+	/**

+	 * Destroy this cell collection

+	 */

+	public function __destruct() {

+		if (!is_null($this->_fileHandle)) {

+			fclose($this->_fileHandle);

+			unlink($this->_fileName);

+		}

+		$this->_fileHandle = null;

+	}	//	function __destruct()

+

+}