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<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @package Zend_Stdlib
*/
namespace Zend\Stdlib\Hydrator;
use ReflectionClass;
use Zend\Stdlib\Exception;
/**
* @category Zend
* @package Zend_Stdlib
* @subpackage Hydrator
*/
class Reflection extends AbstractHydrator
{
/**
* Simple in-memory array cache of ReflectionProperties used.
* @var array
*/
protected static $reflProperties = array();
/**
* Extract values from an object
*
* @param object $object
* @return array
*/
public function extract($object)
{
$result = array();
foreach (self::getReflProperties($object) as $property) {
$propertyName = $property->getName();
$value = $property->getValue($object);
$result[$propertyName] = $this->extractValue($propertyName, $value);
}
return $result;
}
/**
* Hydrate $object with the provided $data.
*
* @param array $data
* @param object $object
* @return object
*/
public function hydrate(array $data, $object)
{
$reflProperties = self::getReflProperties($object);
foreach ($data as $key => $value) {
if (isset($reflProperties[$key])) {
$reflProperties[$key]->setValue($object, $this->hydrateValue($key, $value));
}
}
return $object;
}
/**
* Get a reflection properties from in-memory cache and lazy-load if
* class has not been loaded.
*
* @static
* @param string|object $input
* @throws Exception\InvalidArgumentException
* @return array
*/
protected static function getReflProperties($input)
{
if (is_object($input)) {
$input = get_class($input);
} elseif (!is_string($input)) {
throw new Exception\InvalidArgumentException('Input must be a string or an object.');
}
if (!isset(self::$reflProperties[$input])) {
$reflClass = new ReflectionClass($input);
$reflProperties = $reflClass->getProperties();
foreach ($reflProperties as $property) {
$property->setAccessible(true);
self::$reflProperties[$input][$property->getName()] = $property;
}
}
return self::$reflProperties[$input];
}
}
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