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vendor/symfony/serializer/Encoder/JsonDecode.php

@@ -0,0 +1,107 @@
+<?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\Serializer\Encoder;
+
+use Symfony\Component\Serializer\Exception\NotEncodableValueException;
+
+/**
+ * Decodes JSON data.
+ *
+ * @author Sander Coolen <sander@jibber.nl>
+ */
+class JsonDecode implements DecoderInterface
+{
+    protected $serializer;
+
+    private $associative;
+    private $recursionDepth;
+
+    /**
+     * Constructs a new JsonDecode instance.
+     *
+     * @param bool $associative True to return the result associative array, false for a nested stdClass hierarchy
+     * @param int  $depth       Specifies the recursion depth
+     */
+    public function __construct($associative = false, $depth = 512)
+    {
+        $this->associative = $associative;
+        $this->recursionDepth = (int) $depth;
+    }
+
+    /**
+     * Decodes data.
+     *
+     * @param string $data    The encoded JSON string to decode
+     * @param string $format  Must be set to JsonEncoder::FORMAT
+     * @param array  $context An optional set of options for the JSON decoder; see below
+     *
+     * The $context array is a simple key=>value array, with the following supported keys:
+     *
+     * json_decode_associative: boolean
+     *      If true, returns the object as associative array.
+     *      If false, returns the object as nested stdClass
+     *      If not specified, this method will use the default set in JsonDecode::__construct
+     *
+     * json_decode_recursion_depth: integer
+     *      Specifies the maximum recursion depth
+     *      If not specified, this method will use the default set in JsonDecode::__construct
+     *
+     * json_decode_options: integer
+     *      Specifies additional options as per documentation for json_decode. Only supported with PHP 5.4.0 and higher
+     *
+     * @return mixed
+     *
+     * @throws NotEncodableValueException
+     *
+     * @see http://php.net/json_decode json_decode
+     */
+    public function decode($data, $format, array $context = array())
+    {
+        $context = $this->resolveContext($context);
+
+        $associative = $context['json_decode_associative'];
+        $recursionDepth = $context['json_decode_recursion_depth'];
+        $options = $context['json_decode_options'];
+
+        $decodedData = json_decode($data, $associative, $recursionDepth, $options);
+
+        if (JSON_ERROR_NONE !== json_last_error()) {
+            throw new NotEncodableValueException(json_last_error_msg());
+        }
+
+        return $decodedData;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function supportsDecoding($format)
+    {
+        return JsonEncoder::FORMAT === $format;
+    }
+
+    /**
+     * Merges the default options of the Json Decoder with the passed context.
+     *
+     * @return array
+     */
+    private function resolveContext(array $context)
+    {
+        $defaultOptions = array(
+            'json_decode_associative' => $this->associative,
+            'json_decode_recursion_depth' => $this->recursionDepth,
+            'json_decode_options' => 0,
+        );
+
+        return array_merge($defaultOptions, $context);
+    }
+}