/**
* Get the statement's object.
*
* @return LibRDF_Node The statement's object
* @access public
*/
public function getObject()
{
$node = librdf_statement_get_object($this->statement);
$object = LibRDF_Node::makeNode(librdf_new_node_from_node($node));
return $object;
}
/**
* Parse an RDF document into an EasyRdf_Graph
*
* @param object EasyRdf_Graph $graph the graph to load the data into
* @param string $data the RDF document data
* @param string $format the format of the input data
* @param string $baseUri the base URI of the data being parsed
* @return boolean true if parsing was successful
*/
public function parse($graph, $data, $format, $baseUri)
{
parent::checkParseParams($graph, $data, $format, $baseUri);
$parser = librdf_new_parser($this->_world, $format, null, null);
if (!$parser) {
throw new EasyRdf_Exception("Failed to create librdf_parser of type: {$format}");
}
$rdfUri = librdf_new_uri($this->_world, $baseUri);
if (!$rdfUri) {
throw new EasyRdf_Exception("Failed to create librdf_uri from: {$baseUri}");
}
$stream = librdf_parser_parse_string_as_stream($parser, $data, $rdfUri);
if (!$stream) {
throw new EasyRdf_Exception("Failed to parse RDF stream for: {$rdfUri}");
}
do {
$statement = librdf_stream_get_object($stream);
if ($statement) {
$subject = EasyRdf_Parser_Redland::nodeUriString(librdf_statement_get_subject($statement));
$predicate = EasyRdf_Parser_Redland::nodeUriString(librdf_statement_get_predicate($statement));
$object = EasyRdf_Parser_Redland::nodeToArray(librdf_statement_get_object($statement));
$graph->add($subject, $predicate, $object);
}
} while (!librdf_stream_next($stream));
$errorCount = $this->parserErrorCount($parser);
if ($errorCount) {
throw new EasyRdf_Exception("{$errorCount} errors while parsing.");
}
librdf_free_uri($rdfUri);
librdf_free_stream($stream);
librdf_free_parser($parser);
// Success
return true;
}
/**
* Parse an RDF document
*
* @param string $uri the base URI of the data
* @param string $data the document data
* @param string $format the format of the input data
* @return array the parsed data
*/
public function parse($uri, $data, $format)
{
if (!is_string($uri) or $uri == null or $uri == '') {
throw new InvalidArgumentException("\$uri should be a string and cannot be null or empty");
}
if (!is_string($data) or $data == null or $data == '') {
throw new InvalidArgumentException("\$data should be a string and cannot be null or empty");
}
if (!is_string($format) or $format == null or $format == '') {
throw new InvalidArgumentException("\$format should be a string and cannot be null or empty");
}
$parser = librdf_new_parser($this->_world, $format, null, null);
if (!$parser) {
throw new EasyRdf_Exception("Failed to create librdf_parser of type: {$format}");
}
$rdfUri = librdf_new_uri($this->_world, $uri);
if (!$rdfUri) {
throw new EasyRdf_Exception("Failed to create librdf_uri from: {$uri}");
}
$stream = librdf_parser_parse_string_as_stream($parser, $data, $rdfUri);
if (!$stream) {
throw new EasyRdf_Exception("Failed to parse RDF stream for: {$rdfUri}");
}
$rdfphp = array();
do {
$statement = librdf_stream_get_object($stream);
if ($statement) {
$subject = EasyRdf_Parser_Redland::nodeUriString(librdf_statement_get_subject($statement));
$predicate = EasyRdf_Parser_Redland::nodeUriString(librdf_statement_get_predicate($statement));
$object = EasyRdf_Parser_Redland::rdfPhpObject(librdf_statement_get_object($statement));
if (!isset($rdfphp[$subject])) {
$rdfphp[$subject] = array();
}
if (!isset($rdfphp[$subject][$predicate])) {
$rdfphp[$subject][$predicate] = array();
}
array_push($rdfphp[$subject][$predicate], $object);
}
} while (!librdf_stream_next($stream));
$errorCount = $this->parserErrorCount($parser);
if ($errorCount) {
throw new EasyRdf_Exception("{$errorCount} errors while parsing.");
}
librdf_free_uri($rdfUri);
librdf_free_stream($stream);
librdf_free_parser($parser);
return $rdfphp;
}
/**
* Parse an RDF document into an EasyRdf_Graph
*
* @param string $graph the graph to load the data into
* @param string $data the RDF document data
* @param string $format the format of the input data
* @param string $baseUri the base URI of the data being parsed
* @return boolean true if parsing was successful
*/
public function parse($graph, $data, $format, $baseUri)
{
parent::checkParseParams($graph, $data, $format, $baseUri);
$parser = librdf_new_parser($this->_world, $format, null, null);
if (!$parser) {
throw new EasyRdf_Exception("Failed to create librdf_parser of type: {$format}");
}
$rdfUri = librdf_new_uri($this->_world, $baseUri);
if (!$rdfUri) {
throw new EasyRdf_Exception("Failed to create librdf_uri from: {$baseUri}");
}
$stream = librdf_parser_parse_string_as_stream($parser, $data, $rdfUri);
if (!$stream) {
throw new EasyRdf_Exception("Failed to parse RDF stream for: {$rdfUri}");
}
$rdfphp = array();
do {
$statement = librdf_stream_get_object($stream);
if ($statement) {
$subject = EasyRdf_Parser_Redland::nodeUriString(librdf_statement_get_subject($statement));
$predicate = EasyRdf_Parser_Redland::nodeUriString(librdf_statement_get_predicate($statement));
$object = EasyRdf_Parser_Redland::rdfPhpObject(librdf_statement_get_object($statement));
if (!isset($rdfphp[$subject])) {
$rdfphp[$subject] = array();
}
if (!isset($rdfphp[$subject][$predicate])) {
$rdfphp[$subject][$predicate] = array();
}
array_push($rdfphp[$subject][$predicate], $object);
}
} while (!librdf_stream_next($stream));
$errorCount = $this->parserErrorCount($parser);
if ($errorCount) {
throw new EasyRdf_Exception("{$errorCount} errors while parsing.");
}
librdf_free_uri($rdfUri);
librdf_free_stream($stream);
librdf_free_parser($parser);
// FIXME: remove this second parse step
return parent::parse($graph, $rdfphp, 'php', $baseUri);
}
function _statement($statement)
{
return array($this->_node(librdf_statement_get_subject($statement)), $this->_node(librdf_statement_get_predicate($statement)), $this->_node(librdf_statement_get_object($statement)));
}
/**
* Return Statements object.
* @return Node
*/
public function getObject()
{
return $this->getNodeForRedlandNode(librdf_statement_get_object($this->redlandStatement));
}
/**
* Parse an RDF document into an EasyRdf\Graph
*
* @param Graph $graph the graph to load the data into
* @param string $data the RDF document data
* @param string $format the format of the input data
* @param string $baseUri the base URI of the data being parsed
*
* @throws Exception
* @throws \EasyRdf\Exception
* @return integer The number of triples added to the graph
*/
public function parse($graph, $data, $format, $baseUri)
{
parent::checkParseParams($graph, $data, $format, $baseUri);
$parser = librdf_new_parser($this->world, $format, null, null);
if (!$parser) {
throw new \EasyRdf\Exception("Failed to create librdf_parser of type: {$format}");
}
$rdfUri = librdf_new_uri($this->world, $baseUri);
if (!$rdfUri) {
throw new \EasyRdf\Exception("Failed to create librdf_uri from: {$baseUri}");
}
$stream = librdf_parser_parse_string_as_stream($parser, $data, $rdfUri);
if (!$stream) {
throw new Exception("Failed to parse RDF stream");
}
do {
$statement = librdf_stream_get_object($stream);
if ($statement) {
$subject = self::nodeUriString(librdf_statement_get_subject($statement));
$predicate = self::nodeUriString(librdf_statement_get_predicate($statement));
$object = self::nodeToRdfPhp(librdf_statement_get_object($statement));
$this->addTriple($subject, $predicate, $object);
}
} while (!librdf_stream_next($stream));
$errorCount = $this->parserErrorCount($parser);
if ($errorCount) {
throw new Exception("{$errorCount} errors while parsing.");
}
librdf_free_uri($rdfUri);
librdf_free_stream($stream);
librdf_free_parser($parser);
return $this->tripleCount;
}
