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231 lines
7.7 KiB
231 lines
7.7 KiB
<?php |
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/** |
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* PHPExcel_CachedObjectStorageFactory |
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* |
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* Copyright (c) 2006 - 2015 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 - 2015 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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class PHPExcel_CachedObjectStorageFactory |
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{ |
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const cache_in_memory = 'Memory'; |
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const cache_in_memory_gzip = 'MemoryGZip'; |
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const cache_in_memory_serialized = 'MemorySerialized'; |
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const cache_igbinary = 'Igbinary'; |
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const cache_to_discISAM = 'DiscISAM'; |
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const cache_to_apc = 'APC'; |
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const cache_to_memcache = 'Memcache'; |
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const cache_to_phpTemp = 'PHPTemp'; |
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const cache_to_wincache = 'Wincache'; |
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const cache_to_sqlite = 'SQLite'; |
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const cache_to_sqlite3 = 'SQLite3'; |
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/** |
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* Name of the method used for cell cacheing |
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* |
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* @var string |
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*/ |
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private static $cacheStorageMethod = null; |
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/** |
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* Name of the class used for cell cacheing |
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* |
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* @var string |
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*/ |
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private static $cacheStorageClass = null; |
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/** |
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* List of all possible cache storage methods |
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* |
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* @var string[] |
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*/ |
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private static $storageMethods = array( |
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self::cache_in_memory, |
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self::cache_in_memory_gzip, |
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self::cache_in_memory_serialized, |
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self::cache_igbinary, |
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self::cache_to_phpTemp, |
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self::cache_to_discISAM, |
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self::cache_to_apc, |
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self::cache_to_memcache, |
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self::cache_to_wincache, |
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self::cache_to_sqlite, |
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self::cache_to_sqlite3, |
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); |
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/** |
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* Default arguments for each cache storage method |
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* |
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* @var array of mixed array |
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*/ |
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private static $storageMethodDefaultParameters = array( |
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self::cache_in_memory => array( |
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), |
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self::cache_in_memory_gzip => array( |
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), |
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self::cache_in_memory_serialized => array( |
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), |
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self::cache_igbinary => array( |
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), |
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self::cache_to_phpTemp => array( 'memoryCacheSize' => '1MB' |
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), |
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self::cache_to_discISAM => array( 'dir' => null |
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), |
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self::cache_to_apc => array( 'cacheTime' => 600 |
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), |
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self::cache_to_memcache => array( 'memcacheServer' => 'localhost', |
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'memcachePort' => 11211, |
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'cacheTime' => 600 |
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), |
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self::cache_to_wincache => array( 'cacheTime' => 600 |
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), |
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self::cache_to_sqlite => array( |
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), |
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self::cache_to_sqlite3 => array( |
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), |
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); |
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/** |
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* Arguments for the active cache storage method |
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* |
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* @var array of mixed array |
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*/ |
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private static $storageMethodParameters = array(); |
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/** |
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* Return the current cache storage method |
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* |
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* @return string|null |
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**/ |
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public static function getCacheStorageMethod() |
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{ |
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return self::$cacheStorageMethod; |
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} |
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/** |
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* Return the current cache storage class |
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* |
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* @return PHPExcel_CachedObjectStorage_ICache|null |
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**/ |
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public static function getCacheStorageClass() |
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{ |
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return self::$cacheStorageClass; |
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} |
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/** |
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* Return the list of all possible cache storage methods |
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* |
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* @return string[] |
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**/ |
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public static function getAllCacheStorageMethods() |
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{ |
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return self::$storageMethods; |
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} |
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/** |
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* Return the list of all available cache storage methods |
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* |
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* @return string[] |
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**/ |
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public static function getCacheStorageMethods() |
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{ |
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$activeMethods = array(); |
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foreach (self::$storageMethods as $storageMethod) { |
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$cacheStorageClass = 'PHPExcel_CachedObjectStorage_' . $storageMethod; |
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if (call_user_func(array($cacheStorageClass, 'cacheMethodIsAvailable'))) { |
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$activeMethods[] = $storageMethod; |
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} |
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} |
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return $activeMethods; |
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} |
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/** |
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* Identify the cache storage method to use |
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* |
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* @param string $method Name of the method to use for cell cacheing |
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* @param array of mixed $arguments Additional arguments to pass to the cell caching class |
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* when instantiating |
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* @return boolean |
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**/ |
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public static function initialize($method = self::cache_in_memory, $arguments = array()) |
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{ |
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if (!in_array($method, self::$storageMethods)) { |
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return false; |
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} |
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$cacheStorageClass = 'PHPExcel_CachedObjectStorage_'.$method; |
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if (!call_user_func(array( $cacheStorageClass, |
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'cacheMethodIsAvailable'))) { |
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return false; |
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} |
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self::$storageMethodParameters[$method] = self::$storageMethodDefaultParameters[$method]; |
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foreach ($arguments as $k => $v) { |
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if (array_key_exists($k, self::$storageMethodParameters[$method])) { |
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self::$storageMethodParameters[$method][$k] = $v; |
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} |
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} |
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if (self::$cacheStorageMethod === null) { |
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self::$cacheStorageClass = 'PHPExcel_CachedObjectStorage_' . $method; |
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self::$cacheStorageMethod = $method; |
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} |
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return true; |
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} |
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/** |
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* Initialise the cache storage |
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* |
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* @param PHPExcel_Worksheet $parent Enable cell caching for this worksheet |
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* @return PHPExcel_CachedObjectStorage_ICache |
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**/ |
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public static function getInstance(PHPExcel_Worksheet $parent) |
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{ |
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$cacheMethodIsAvailable = true; |
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if (self::$cacheStorageMethod === null) { |
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$cacheMethodIsAvailable = self::initialize(); |
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} |
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if ($cacheMethodIsAvailable) { |
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$instance = new self::$cacheStorageClass( |
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$parent, |
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self::$storageMethodParameters[self::$cacheStorageMethod] |
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); |
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if ($instance !== null) { |
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return $instance; |
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} |
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} |
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return false; |
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} |
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/** |
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* Clear the cache storage |
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* |
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**/ |
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public static function finalize() |
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{ |
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self::$cacheStorageMethod = null; |
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self::$cacheStorageClass = null; |
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self::$storageMethodParameters = array(); |
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} |
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}
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