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Editing: Autoloader.php
<?php namespace Nextend; class Autoloader { private static $instance = null; private $aliases = array( 'N2Data' => '\\Nextend\\Framework\\Data\\Data', 'N2SmartSliderBackup' => '\\Nextend\\SmartSlider3\\BackupSlider\\BackupData', 'N2SmartSliderImport' => '\\Nextend\\SmartSlider3\\BackupSlider\\ImportSlider', 'N2SmartSliderExport' => '\\Nextend\\SmartSlider3\\BackupSlider\\ExportSlider', ); /** * An associative array where the key is a namespace prefix and the value * is an array of base directories for classes in that namespace. * * @var array */ protected $prefixes = array(); public function __construct() { $this->addNamespace('Nextend\\', dirname(__FILE__)); $this->register(); $currentPath = dirname(__FILE__) . '/'; foreach (scandir($currentPath) as $file) { if ($file == '.' || $file == '..') continue; $path = $currentPath . $file; if (is_dir($path)) { $className = '\\Nextend\\' . $file . '\\' . $file; if (class_exists($className) && is_callable(array( $className, 'getInstance' ))) { call_user_func_array(array( $className, 'getInstance' ), array()); } } } Nextend::getInstance(); } public static function getInstance() { if (self::$instance == null) { self::$instance = new Autoloader(); } return self::$instance; } /** * Register loader with SPL autoloader stack. * * @return void */ public function register() { spl_autoload_register(array( $this, 'loadClass' )); } /** * Adds a base directory for a namespace prefix. * * @param string $prefix The namespace prefix. * @param string $base_dir A base directory for class files in the * namespace. * @param bool $prepend If true, prepend the base directory to the stack * instead of appending it; this causes it to be searched first rather * than last. * * @return void */ public function addNamespace($prefix, $base_dir, $prepend = false) { // normalize namespace prefix $prefix = trim($prefix, '\\') . '\\'; // normalize the base directory with a trailing separator $base_dir = rtrim($base_dir, DIRECTORY_SEPARATOR) . '/'; // initialize the namespace prefix array if (isset($this->prefixes[$prefix]) === false) { $this->prefixes[$prefix] = array(); } // retain the base directory for the namespace prefix if ($prepend) { array_unshift($this->prefixes[$prefix], $base_dir); } else { array_push($this->prefixes[$prefix], $base_dir); } } /** * Loads the class file for a given class name. * * @param string $class The fully-qualified class name. * * @return mixed The mapped file name on success, or boolean false on * failure. */ public function loadClass($class) { // the current namespace prefix $prefix = $class; // work backwards through the namespace names of the fully-qualified // class name to find a mapped file name while (false !== $pos = strrpos($prefix, '\\')) { // retain the trailing namespace separator in the prefix $prefix = substr($class, 0, $pos + 1); // the rest is the relative class name $relative_class = substr($class, $pos + 1); // try to load a mapped file for the prefix and relative class $mapped_file = $this->loadMappedFile($prefix, $relative_class); if ($mapped_file) { return $mapped_file; } // remove the trailing namespace separator for the next iteration // of strrpos() $prefix = rtrim($prefix, '\\'); } if (isset($this->aliases[$class]) && class_exists($this->aliases[$class])) { /** * Create class alias for old class names */ class_alias($this->aliases[$class], $class); return true; } // never found a mapped file return false; } /** * Load the mapped file for a namespace prefix and relative class. * * @param string $prefix The namespace prefix. * @param string $relative_class The relative class name. * * @return mixed Boolean false if no mapped file can be loaded, or the * name of the mapped file that was loaded. */ protected function loadMappedFile($prefix, $relative_class) { // are there any base directories for this namespace prefix? if (isset($this->prefixes[$prefix]) === false) { return false; } // look through base directories for this namespace prefix foreach ($this->prefixes[$prefix] as $base_dir) { // replace the namespace prefix with the base directory, // replace namespace separators with directory separators // in the relative class name, append with .php $file = $base_dir . str_replace('\\', '/', $relative_class) . '.php'; // if the mapped file exists, require it if ($this->requireFile($file)) { // yes, we're done return $file; } } // never found it return false; } /** * If a file exists, require it from the file system. * * @param string $file The file to require. * * @return bool True if the file exists, false if not. */ protected function requireFile($file) { if (file_exists($file)) { require $file; return true; } return false; } } Autoloader::getInstance();
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