questlab/core/ClassLoader.inc
2013-08-09 02:41:06 +02:00

129 lines
2.8 KiB
PHP

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