diff vendor/symfony/serializer/Mapping/Loader/LoaderChain.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/symfony/serializer/Mapping/Loader/LoaderChain.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,66 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <[e-mail]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Serializer\Mapping\Loader;
+
+use Symfony\Component\Serializer\Exception\MappingException;
+use Symfony\Component\Serializer\Mapping\ClassMetadataInterface;
+
+/**
+ * Calls multiple {@link LoaderInterface} instances in a chain.
+ *
+ * This class accepts multiple instances of LoaderInterface to be passed to the
+ * constructor. When {@link loadClassMetadata()} is called, the same method is called
+ * in <em>all</em> of these loaders, regardless of whether any of them was
+ * successful or not.
+ *
+ * @author Bernhard Schussek <[e-mail]>
+ * @author Kévin Dunglas <[e-mail]>
+ */
+class LoaderChain implements LoaderInterface
+{
+    /**
+     * @var LoaderInterface[]
+     */
+    private $loaders;
+
+    /**
+     * Accepts a list of LoaderInterface instances.
+     *
+     * @param LoaderInterface[] $loaders An array of LoaderInterface instances
+     *
+     * @throws MappingException If any of the loaders does not implement LoaderInterface
+     */
+    public function __construct(array $loaders)
+    {
+        foreach ($loaders as $loader) {
+            if (!$loader instanceof LoaderInterface) {
+                throw new MappingException(sprintf('Class %s is expected to implement LoaderInterface', get_class($loader)));
+            }
+        }
+
+        $this->loaders = $loaders;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function loadClassMetadata(ClassMetadataInterface $metadata)
+    {
+        $success = false;
+
+        foreach ($this->loaders as $loader) {
+            $success = $loader->loadClassMetadata($metadata) || $success;
+        }
+
+        return $success;
+    }
+}