/** * Method to serialise an EasyRdf_Graph to RDF/JSON * * http://n2.talis.com/wiki/RDF_JSON_Specification * * @param object EasyRdf_Graph $graph An EasyRdf_Graph object. * @param string $format The name of the format to convert to. * @return string The RDF in the new desired format. */ public function serialise($graph, $format) { parent::checkSerialiseParams($graph, $format); if ($format != 'json') { throw new EasyRdf_Exception("EasyRdf_Serialiser_Json does not support: {$format}"); } return json_encode(parent::serialise($graph, 'php')); }
/** * Serialise an EasyRdf_Graph into RDF format of choice. * * @param EasyRdf_Graph $graph An EasyRdf_Graph object. * @param string $format The name of the format to convert to. * @param array $options * @throws EasyRdf_Exception * @return string The RDF in the new desired format. */ public function serialise($graph, $format, array $options = array()) { parent::checkSerialiseParams($graph, $format); if (array_key_exists($format, self::$supportedTypes)) { $className = self::$supportedTypes[$format]; } else { throw new EasyRdf_Exception("EasyRdf_Serialiser_Arc does not support: {$format}"); } $serialiser = ARC2::getSer($className); if ($serialiser) { return $serialiser->getSerializedIndex(parent::serialise($graph, 'php')); } else { throw new EasyRdf_Exception("ARC2 failed to get a {$className} serialiser."); } }