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289 lines
9.1 KiB
289 lines
9.1 KiB
<?php |
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/** PHPExcel root directory */ |
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if (!defined('PHPEXCEL_ROOT')) { |
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/** |
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* @ignore |
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*/ |
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define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../'); |
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require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php'); |
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} |
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/** |
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* PHPExcel_IOFactory |
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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 |
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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_IOFactory |
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{ |
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/** |
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* Search locations |
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* |
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* @var array |
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* @access private |
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* @static |
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*/ |
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private static $searchLocations = array( |
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array( 'type' => 'IWriter', 'path' => 'PHPExcel/Writer/{0}.php', 'class' => 'PHPExcel_Writer_{0}' ), |
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array( 'type' => 'IReader', 'path' => 'PHPExcel/Reader/{0}.php', 'class' => 'PHPExcel_Reader_{0}' ) |
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); |
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/** |
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* Autoresolve classes |
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* |
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* @var array |
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* @access private |
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* @static |
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*/ |
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private static $autoResolveClasses = array( |
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'Excel2007', |
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'Excel5', |
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'Excel2003XML', |
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'OOCalc', |
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'SYLK', |
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'Gnumeric', |
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'HTML', |
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'CSV', |
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); |
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/** |
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* Private constructor for PHPExcel_IOFactory |
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*/ |
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private function __construct() |
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{ |
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} |
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/** |
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* Get search locations |
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* |
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* @static |
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* @access public |
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* @return array |
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*/ |
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public static function getSearchLocations() |
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{ |
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return self::$searchLocations; |
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} |
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/** |
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* Set search locations |
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* |
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* @static |
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* @access public |
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* @param array $value |
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* @throws PHPExcel_Reader_Exception |
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*/ |
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public static function setSearchLocations($value) |
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{ |
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if (is_array($value)) { |
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self::$searchLocations = $value; |
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} else { |
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throw new PHPExcel_Reader_Exception('Invalid parameter passed.'); |
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} |
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} |
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/** |
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* Add search location |
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* |
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* @static |
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* @access public |
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* @param string $type Example: IWriter |
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* @param string $location Example: PHPExcel/Writer/{0}.php |
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* @param string $classname Example: PHPExcel_Writer_{0} |
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*/ |
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public static function addSearchLocation($type = '', $location = '', $classname = '') |
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{ |
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self::$searchLocations[] = array( 'type' => $type, 'path' => $location, 'class' => $classname ); |
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} |
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/** |
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* Create PHPExcel_Writer_IWriter |
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* |
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* @static |
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* @access public |
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* @param PHPExcel $phpExcel |
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* @param string $writerType Example: Excel2007 |
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* @return PHPExcel_Writer_IWriter |
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* @throws PHPExcel_Reader_Exception |
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*/ |
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public static function createWriter(PHPExcel $phpExcel, $writerType = '') |
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{ |
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// Search type |
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$searchType = 'IWriter'; |
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// Include class |
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foreach (self::$searchLocations as $searchLocation) { |
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if ($searchLocation['type'] == $searchType) { |
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$className = str_replace('{0}', $writerType, $searchLocation['class']); |
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$instance = new $className($phpExcel); |
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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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} |
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// Nothing found... |
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throw new PHPExcel_Reader_Exception("No $searchType found for type $writerType"); |
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} |
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/** |
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* Create PHPExcel_Reader_IReader |
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* |
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* @static |
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* @access public |
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* @param string $readerType Example: Excel2007 |
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* @return PHPExcel_Reader_IReader |
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* @throws PHPExcel_Reader_Exception |
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*/ |
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public static function createReader($readerType = '') |
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{ |
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// Search type |
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$searchType = 'IReader'; |
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// Include class |
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foreach (self::$searchLocations as $searchLocation) { |
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if ($searchLocation['type'] == $searchType) { |
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$className = str_replace('{0}', $readerType, $searchLocation['class']); |
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$instance = new $className(); |
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if ($instance !== null) { |
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return $instance; |
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} |
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} |
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} |
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// Nothing found... |
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throw new PHPExcel_Reader_Exception("No $searchType found for type $readerType"); |
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} |
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/** |
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* Loads PHPExcel from file using automatic PHPExcel_Reader_IReader resolution |
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* |
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* @static |
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* @access public |
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* @param string $pFilename The name of the spreadsheet file |
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* @return PHPExcel |
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* @throws PHPExcel_Reader_Exception |
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*/ |
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public static function load($pFilename) |
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{ |
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$reader = self::createReaderForFile($pFilename); |
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return $reader->load($pFilename); |
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} |
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/** |
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* Identify file type using automatic PHPExcel_Reader_IReader resolution |
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* |
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* @static |
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* @access public |
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* @param string $pFilename The name of the spreadsheet file to identify |
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* @return string |
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* @throws PHPExcel_Reader_Exception |
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*/ |
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public static function identify($pFilename) |
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{ |
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$reader = self::createReaderForFile($pFilename); |
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$className = get_class($reader); |
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$classType = explode('_', $className); |
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unset($reader); |
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return array_pop($classType); |
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} |
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/** |
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* Create PHPExcel_Reader_IReader for file using automatic PHPExcel_Reader_IReader resolution |
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* |
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* @static |
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* @access public |
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* @param string $pFilename The name of the spreadsheet file |
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* @return PHPExcel_Reader_IReader |
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* @throws PHPExcel_Reader_Exception |
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*/ |
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public static function createReaderForFile($pFilename) |
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{ |
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// First, lucky guess by inspecting file extension |
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$pathinfo = pathinfo($pFilename); |
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$extensionType = null; |
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if (isset($pathinfo['extension'])) { |
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switch (strtolower($pathinfo['extension'])) { |
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case 'xlsx': // Excel (OfficeOpenXML) Spreadsheet |
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case 'xlsm': // Excel (OfficeOpenXML) Macro Spreadsheet (macros will be discarded) |
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case 'xltx': // Excel (OfficeOpenXML) Template |
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case 'xltm': // Excel (OfficeOpenXML) Macro Template (macros will be discarded) |
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$extensionType = 'Excel2007'; |
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break; |
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case 'xls': // Excel (BIFF) Spreadsheet |
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case 'xlt': // Excel (BIFF) Template |
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$extensionType = 'Excel5'; |
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break; |
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case 'ods': // Open/Libre Offic Calc |
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case 'ots': // Open/Libre Offic Calc Template |
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$extensionType = 'OOCalc'; |
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break; |
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case 'slk': |
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$extensionType = 'SYLK'; |
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break; |
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case 'xml': // Excel 2003 SpreadSheetML |
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$extensionType = 'Excel2003XML'; |
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break; |
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case 'gnumeric': |
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$extensionType = 'Gnumeric'; |
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break; |
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case 'htm': |
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case 'html': |
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$extensionType = 'HTML'; |
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break; |
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case 'csv': |
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// Do nothing |
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// We must not try to use CSV reader since it loads |
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// all files including Excel files etc. |
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break; |
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default: |
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break; |
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} |
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if ($extensionType !== null) { |
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$reader = self::createReader($extensionType); |
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// Let's see if we are lucky |
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if (isset($reader) && $reader->canRead($pFilename)) { |
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return $reader; |
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} |
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} |
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} |
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// If we reach here then "lucky guess" didn't give any result |
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// Try walking through all the options in self::$autoResolveClasses |
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foreach (self::$autoResolveClasses as $autoResolveClass) { |
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// Ignore our original guess, we know that won't work |
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if ($autoResolveClass !== $extensionType) { |
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$reader = self::createReader($autoResolveClass); |
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if ($reader->canRead($pFilename)) { |
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return $reader; |
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} |
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} |
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} |
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throw new PHPExcel_Reader_Exception('Unable to identify a reader for this file'); |
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} |
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}
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