130 lines
3.6 KiB
PHP
130 lines
3.6 KiB
PHP
<?php
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/**
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* NRE
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*
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* @author coderkun <olli@coderkun.de>
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* @copyright 2013 coderkun (http://www.coderkun.de)
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* @license http://www.gnu.org/licenses/gpl.html
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* @link http://www.coderkun.de/projects/nre
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*/
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namespace nre\core;
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/**
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* Class for safely loading classes.
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*
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* @author coderkun <olli@coderkun.de>
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*/
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class ClassLoader
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{
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/**
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* Load a class.
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*
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* @throws \nre\exceptions\ClassNotFoundException
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* @param string $className Name of the class to load
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*/
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public static function load($fullClassName)
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{
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// Determine folder to look in
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$className = explode('\\', $fullClassName);
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$className = array_slice($className, substr_count(\nre\configs\AppConfig::$app['namespace'], '\\'));
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// Determine filename
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$fileName = ROOT.DS.implode(DS, $className). \nre\configs\CoreConfig::getFileExt('includes');
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// Check file
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if(!file_exists($fileName))
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{
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throw new \nre\exceptions\ClassNotFoundException(
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$fullClassName
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);
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}
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// Include file
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include_once($fileName);
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}
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/**
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* Check inheritance of a class.
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*
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* @throws \nre\exceptions\ClassNotValidException
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* @param string $className Name of the class to check
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* @param string $parentClassName Name of the parent class
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*/
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public static function check($className, $parentClassName)
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{
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// Check if class is subclass of parent class
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if(!is_subclass_of($className, $parentClassName)) {
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throw new \nre\exceptions\ClassNotValidException(
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$className
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);
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}
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}
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/**
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* Strip the namespace from a class name.
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*
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* @param string $class Name of a class including its namespace
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* @return string Name of the given class without its namespace
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*/
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public static function stripNamespace($class)
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{
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return array_slice(explode('\\', $class), -1)[0];
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}
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/**
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* Strip the class type from a class name.
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*
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* @param string $className Name of a class
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* @return string Name of the given class without its class type
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*/
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public static function stripClassType($className)
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{
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return preg_replace('/^(.*)[A-Z][^A-Z]+$/', '$1', $className);
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}
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/**
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* Strip the namespace and the class type of a full class name
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* to get only its name.
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*
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* @param string $class Full name of a class
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* @return string Only the name of the given class
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*/
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public static function getClassName($class)
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{
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return self::stripClassType(self::stripNamespace($class));
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}
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/**
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* Concatenate strings to a class name following the CamelCase
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* pattern.
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*
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* @param string $className1 Arbitrary number of strings to concat
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* @return string Class name as CamelCase
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*/
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public static function concatClassNames($className1)
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{
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return implode('', array_map(
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function($arg) {
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return ucfirst(strtolower($arg));
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},
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func_get_args()
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));
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}
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}
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?>
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