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Diffstat (limited to 'admin/survey/excel/PHPExcel/IOFactory.php')
| -rw-r--r-- | admin/survey/excel/PHPExcel/IOFactory.php | 288 |
1 files changed, 288 insertions, 0 deletions
diff --git a/admin/survey/excel/PHPExcel/IOFactory.php b/admin/survey/excel/PHPExcel/IOFactory.php new file mode 100644 index 0000000..17a1b4f --- /dev/null +++ b/admin/survey/excel/PHPExcel/IOFactory.php @@ -0,0 +1,288 @@ +<?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
+ * @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 root directory */
+if (!defined('PHPEXCEL_ROOT')) {
+ /**
+ * @ignore
+ */
+ define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../');
+ require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');
+}
+
+/**
+ * PHPExcel_IOFactory
+ *
+ * @category PHPExcel
+ * @package PHPExcel
+ * @copyright Copyright (c) 2006 - 2012 PHPExcel (http://www.codeplex.com/PHPExcel)
+ */
+class PHPExcel_IOFactory
+{
+ /**
+ * Search locations
+ *
+ * @var array
+ * @access private
+ * @static
+ */
+ private static $_searchLocations = array(
+ array( 'type' => 'IWriter', 'path' => 'PHPExcel/Writer/{0}.php', 'class' => 'PHPExcel_Writer_{0}' ),
+ array( 'type' => 'IReader', 'path' => 'PHPExcel/Reader/{0}.php', 'class' => 'PHPExcel_Reader_{0}' )
+ );
+
+ /**
+ * Autoresolve classes
+ *
+ * @var array
+ * @access private
+ * @static
+ */
+ private static $_autoResolveClasses = array(
+ 'Excel2007',
+ 'Excel5',
+ 'Excel2003XML',
+ 'OOCalc',
+ 'SYLK',
+ 'Gnumeric',
+ 'HTML',
+ 'CSV',
+ );
+
+ /**
+ * Private constructor for PHPExcel_IOFactory
+ */
+ private function __construct() { }
+
+ /**
+ * Get search locations
+ *
+ * @static
+ * @access public
+ * @return array
+ */
+ public static function getSearchLocations() {
+ return self::$_searchLocations;
+ } // function getSearchLocations()
+
+ /**
+ * Set search locations
+ *
+ * @static
+ * @access public
+ * @param array $value
+ * @throws Exception
+ */
+ public static function setSearchLocations($value) {
+ if (is_array($value)) {
+ self::$_searchLocations = $value;
+ } else {
+ throw new Exception('Invalid parameter passed.');
+ }
+ } // function setSearchLocations()
+
+ /**
+ * Add search location
+ *
+ * @static
+ * @access public
+ * @param string $type Example: IWriter
+ * @param string $location Example: PHPExcel/Writer/{0}.php
+ * @param string $classname Example: PHPExcel_Writer_{0}
+ */
+ public static function addSearchLocation($type = '', $location = '', $classname = '') {
+ self::$_searchLocations[] = array( 'type' => $type, 'path' => $location, 'class' => $classname );
+ } // function addSearchLocation()
+
+ /**
+ * Create PHPExcel_Writer_IWriter
+ *
+ * @static
+ * @access public
+ * @param PHPExcel $phpExcel
+ * @param string $writerType Example: Excel2007
+ * @return PHPExcel_Writer_IWriter
+ * @throws Exception
+ */
+ public static function createWriter(PHPExcel $phpExcel, $writerType = '') {
+ // Search type
+ $searchType = 'IWriter';
+
+ // Include class
+ foreach (self::$_searchLocations as $searchLocation) {
+ if ($searchLocation['type'] == $searchType) {
+ $className = str_replace('{0}', $writerType, $searchLocation['class']);
+
+ $instance = new $className($phpExcel);
+ if ($instance !== NULL) {
+ return $instance;
+ }
+ }
+ }
+
+ // Nothing found...
+ throw new Exception("No $searchType found for type $writerType");
+ } // function createWriter()
+
+ /**
+ * Create PHPExcel_Reader_IReader
+ *
+ * @static
+ * @access public
+ * @param string $readerType Example: Excel2007
+ * @return PHPExcel_Reader_IReader
+ * @throws Exception
+ */
+ public static function createReader($readerType = '') {
+ // Search type
+ $searchType = 'IReader';
+
+ // Include class
+ foreach (self::$_searchLocations as $searchLocation) {
+ if ($searchLocation['type'] == $searchType) {
+ $className = str_replace('{0}', $readerType, $searchLocation['class']);
+
+ $instance = new $className();
+ if ($instance !== NULL) {
+ return $instance;
+ }
+ }
+ }
+
+ // Nothing found...
+ throw new Exception("No $searchType found for type $readerType");
+ } // function createReader()
+
+ /**
+ * Loads PHPExcel from file using automatic PHPExcel_Reader_IReader resolution
+ *
+ * @static
+ * @access public
+ * @param string $pFileName The name of the spreadsheet file
+ * @return PHPExcel
+ * @throws Exception
+ */
+ public static function load($pFilename) {
+ $reader = self::createReaderForFile($pFilename);
+ return $reader->load($pFilename);
+ } // function load()
+
+ /**
+ * Identify file type using automatic PHPExcel_Reader_IReader resolution
+ *
+ * @static
+ * @access public
+ * @param string $pFileName The name of the spreadsheet file to identify
+ * @return string
+ * @throws Exception
+ */
+ public static function identify($pFilename) {
+ $reader = self::createReaderForFile($pFilename);
+ $className = get_class($reader);
+ $classType = explode('_',$className);
+ unset($reader);
+ return array_pop($classType);
+ } // function identify()
+
+ /**
+ * Create PHPExcel_Reader_IReader for file using automatic PHPExcel_Reader_IReader resolution
+ *
+ * @static
+ * @access public
+ * @param string $pFileName The name of the spreadsheet file
+ * @return PHPExcel_Reader_IReader
+ * @throws Exception
+ */
+ public static function createReaderForFile($pFilename) {
+
+ // First, lucky guess by inspecting file extension
+ $pathinfo = pathinfo($pFilename);
+
+ $extensionType = NULL;
+ if (isset($pathinfo['extension'])) {
+ switch (strtolower($pathinfo['extension'])) {
+ case 'xlsx': // Excel (OfficeOpenXML) Spreadsheet
+ case 'xlsm': // Excel (OfficeOpenXML) Macro Spreadsheet (macros will be discarded)
+ case 'xltx': // Excel (OfficeOpenXML) Template
+ case 'xltm': // Excel (OfficeOpenXML) Macro Template (macros will be discarded)
+ $extensionType = 'Excel2007';
+ break;
+ case 'xls': // Excel (BIFF) Spreadsheet
+ case 'xlt': // Excel (BIFF) Template
+ $extensionType = 'Excel5';
+ break;
+ case 'ods': // Open/Libre Offic Calc
+ case 'ots': // Open/Libre Offic Calc Template
+ $extensionType = 'OOCalc';
+ break;
+ case 'slk':
+ $extensionType = 'SYLK';
+ break;
+ case 'xml': // Excel 2003 SpreadSheetML
+ $extensionType = 'Excel2003XML';
+ break;
+ case 'gnumeric':
+ $extensionType = 'Gnumeric';
+ break;
+ case 'htm':
+ case 'html':
+ $extensionType = 'HTML';
+ break;
+ case 'csv':
+ // Do nothing
+ // We must not try to use CSV reader since it loads
+ // all files including Excel files etc.
+ break;
+ default:
+ break;
+ }
+
+ if ($extensionType !== NULL) {
+ $reader = self::createReader($extensionType);
+ // Let's see if we are lucky
+ if (isset($reader) && $reader->canRead($pFilename)) {
+ return $reader;
+ }
+ }
+ }
+
+ // If we reach here then "lucky guess" didn't give any result
+ // Try walking through all the options in self::$_autoResolveClasses
+ foreach (self::$_autoResolveClasses as $autoResolveClass) {
+ // Ignore our original guess, we know that won't work
+ if ($autoResolveClass !== $extensionType) {
+ $reader = self::createReader($autoResolveClass);
+ if ($reader->canRead($pFilename)) {
+ return $reader;
+ }
+ }
+ }
+
+ throw new Exception('Unable to identify a reader for this file');
+ } // function createReaderForFile()
+}
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