forked from rebillar/site-accueil-insa
141 lines
4.9 KiB
PHP
141 lines
4.9 KiB
PHP
<?php
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/**
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* Class with static methods for loading classes and files
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*
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* PHP version 5
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*
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* LICENSE:
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*
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* Copyright (c) 2006-2010, Alexey Borzov <avb@php.net>,
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* Bertrand Mansion <golgote@mamasam.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * The names of the authors may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* @category HTML
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* @package HTML_QuickForm2
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* @author Alexey Borzov <avb@php.net>
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* @author Bertrand Mansion <golgote@mamasam.com>
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* @license http://opensource.org/licenses/bsd-license.php New BSD License
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* @version SVN: $Id: Loader.php 294057 2010-01-26 21:10:28Z avb $
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* @link http://pear.php.net/package/HTML_QuickForm2
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*/
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/**
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* Exception classes for HTML_QuickForm2
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*/
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// require_once 'HTML/QuickForm2/Exception.php';
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require_once dirname(__FILE__) . '/Exception.php';
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/**
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* Class with static methods for loading classes and files
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*
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* @category HTML
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* @package HTML_QuickForm2
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* @author Alexey Borzov <avb@php.net>
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* @author Bertrand Mansion <golgote@mamasam.com>
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* @version Release: @package_version@
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*/
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class HTML_QuickForm2_Loader
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{
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/**
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* Tries to load a given class
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*
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* If no $includeFile was provided, $className will be used with underscores
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* replaced with path separators and '.php' extension appended
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*
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* @param string Class name to load
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* @param string Name of the file (supposedly) containing the given class
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* @throws HTML_QuickForm2_NotFoundException If the file either can't be
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* loaded or doesn't contain the given class
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*/
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public static function loadClass($className, $includeFile = null)
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{
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if (class_exists($className, false) || interface_exists($className, false)) {
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return true;
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}
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if (empty($includeFile)) {
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$includeFile = str_replace('_', DIRECTORY_SEPARATOR, $className) . '.php';
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}
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// Do not silence the errors with @, parse errors will not be seen
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include $includeFile;
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// Still no class?
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if (!class_exists($className, false) && !interface_exists($className, false)) {
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if (!self::fileExists($includeFile)) {
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throw new HTML_QuickForm2_NotFoundException(
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"File '$includeFile' was not found"
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);
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} else {
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throw new HTML_QuickForm2_NotFoundException(
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"Class '$className' was not found within file '$includeFile'"
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);
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}
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}
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}
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/**
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* Checks whether the file exists in the include path
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*
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* @param string file name
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* @return bool
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*/
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public static function fileExists($fileName)
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{
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$fp = @fopen($fileName, 'r', true);
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if (is_resource($fp)) {
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fclose($fp);
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return true;
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}
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return false;
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}
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/**
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* Loading of HTML_QuickForm2_* classes suitable for SPL autoload mechanism
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*
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* This method will only try to load a class if its name starts with
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* HTML_QuickForm2. Register with the following:
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* <code>
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* spl_autoload_register(array('HTML_QuickForm2_Loader', 'autoload'));
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* </code>
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*
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* @param string Class name
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* @return bool Whether class loaded successfully
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*/
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public static function autoload($class)
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{
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if (0 !== strpos($class, 'HTML_QuickForm2')) {
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return false;
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}
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try {
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@self::loadClass($class);
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return true;
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} catch (Exception $e) {
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return false;
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}
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}
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}
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?>
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