Chris@0: <?php
Chris@0: 
Chris@0: /*
Chris@0:  * This file is part of the Symfony package.
Chris@0:  *
Chris@0:  * (c) Fabien Potencier <fabien@symfony.com>
Chris@0:  *
Chris@0:  * For the full copyright and license information, please view the LICENSE
Chris@0:  * file that was distributed with this source code.
Chris@0:  */
Chris@0: 
Chris@0: namespace Symfony\Component\Serializer\Encoder;
Chris@0: 
Chris@0: use Symfony\Component\Serializer\Exception\UnexpectedValueException;
Chris@0: 
Chris@0: /**
Chris@0:  * Encodes JSON data.
Chris@0:  *
Chris@0:  * @author Sander Coolen <sander@jibber.nl>
Chris@0:  */
Chris@0: class JsonEncode implements EncoderInterface
Chris@0: {
Chris@0:     private $options;
Chris@0:     private $lastError = JSON_ERROR_NONE;
Chris@0: 
Chris@0:     public function __construct($bitmask = 0)
Chris@0:     {
Chris@0:         $this->options = $bitmask;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Encodes PHP data to a JSON string.
Chris@0:      *
Chris@0:      * {@inheritdoc}
Chris@0:      */
Chris@0:     public function encode($data, $format, array $context = array())
Chris@0:     {
Chris@0:         $context = $this->resolveContext($context);
Chris@0: 
Chris@0:         $encodedJson = json_encode($data, $context['json_encode_options']);
Chris@0: 
Chris@0:         if (JSON_ERROR_NONE !== $this->lastError = json_last_error()) {
Chris@0:             throw new UnexpectedValueException(json_last_error_msg());
Chris@0:         }
Chris@0: 
Chris@0:         return $encodedJson;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * {@inheritdoc}
Chris@0:      */
Chris@0:     public function supportsEncoding($format)
Chris@0:     {
Chris@0:         return JsonEncoder::FORMAT === $format;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Merge default json encode options with context.
Chris@0:      *
Chris@0:      * @param array $context
Chris@0:      *
Chris@0:      * @return array
Chris@0:      */
Chris@0:     private function resolveContext(array $context = array())
Chris@0:     {
Chris@0:         return array_merge(array('json_encode_options' => $this->options), $context);
Chris@0:     }
Chris@0: }