--- /dev/null
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Validator\Mapping\Loader;
+
+use Symfony\Component\Validator\Exception\MappingException;
+use Symfony\Component\Validator\Mapping\ClassMetadata;
+
+/**
+ * Loads validation metadata by calling a static method on the loaded class.
+ *
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ */
+class StaticMethodLoader implements LoaderInterface
+{
+ /**
+ * The name of the method to call.
+ *
+ * @var string
+ */
+ protected $methodName;
+
+ /**
+ * Creates a new loader.
+ *
+ * @param string $methodName The name of the static method to call
+ */
+ public function __construct($methodName = 'loadValidatorMetadata')
+ {
+ $this->methodName = $methodName;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function loadClassMetadata(ClassMetadata $metadata)
+ {
+ /** @var \ReflectionClass $reflClass */
+ $reflClass = $metadata->getReflectionClass();
+
+ if (!$reflClass->isInterface() && $reflClass->hasMethod($this->methodName)) {
+ $reflMethod = $reflClass->getMethod($this->methodName);
+
+ if ($reflMethod->isAbstract()) {
+ return false;
+ }
+
+ if (!$reflMethod->isStatic()) {
+ throw new MappingException(sprintf('The method %s::%s should be static', $reflClass->name, $this->methodName));
+ }
+
+ if ($reflMethod->getDeclaringClass()->name != $reflClass->name) {
+ return false;
+ }
+
+ $reflMethod->invoke(null, $metadata);
+
+ return true;
+ }
+
+ return false;
+ }
+}