1 files changed, 141 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/includes/queryprinters/RdfResultPrinter.php b/www/wiki/extensions/SemanticMediaWiki/includes/queryprinters/RdfResultPrinter.php
new file mode 100644
index 00000000..24006dbe
--- /dev/null
+++ b/www/wiki/extensions/SemanticMediaWiki/includes/queryprinters/RdfResultPrinter.php
@@ -0,0 +1,141 @@
+<?php
+
+namespace SMW;
+
+use SMW\Query\PrintRequest;
+use SMWExporter;
+use SMWQueryResult;
+use SMWRDFXMLSerializer;
+use SMWTurtleSerializer;
+
+/**
+ * Printer class for generating RDF output
+ *
+ * @license GNU GPL v2+
+ * @since 1.6
+ *
+ * @author Markus Krötzsch
+ */
+class RdfResultPrinter extends FileExportPrinter {
+
+	/**
+	 * The syntax to be used for export. May be 'rdfxml' or 'turtle'.
+	 */
+	protected $syntax;
+
+	/**
+	 * @see SMWResultPrinter::handleParameters
+	 *
+	 * @since 1.7
+	 *
+	 * @param array $params
+	 * @param $outputmode
+	 */
+	protected function handleParameters( array $params, $outputmode ) {
+		parent::handleParameters( $params, $outputmode );
+		$this->syntax = $params['syntax'];
+	}
+
+	/**
+	 * @see SMWIExportPrinter::getMimeType
+	 *
+	 * @since 1.8
+	 *
+	 * @param SMWQueryResult $queryResult
+	 *
+	 * @return string
+	 */
+	public function getMimeType( SMWQueryResult $queryResult ) {
+		return $this->syntax == 'turtle' ? 'application/x-turtle' : 'application/xml';
+	}
+
+	/**
+	 * @see SMWIExportPrinter::getFileName
+	 *
+	 * @since 1.8
+	 *
+	 * @param SMWQueryResult $queryResult
+	 *
+	 * @return string|boolean
+	 */
+	public function getFileName( SMWQueryResult $queryResult ) {
+		return $this->syntax == 'turtle' ? 'result.ttl' : 'result.rdf';
+	}
+
+	public function getName() {
+		return wfMessage( 'smw_printername_rdf' )->text();
+	}
+
+	protected function getResultText( SMWQueryResult $res, $outputMode ) {
+		if ( $outputMode == SMW_OUTPUT_FILE ) { // make RDF file
+			$serializer = $this->syntax == 'turtle' ? new SMWTurtleSerializer() : new SMWRDFXMLSerializer();
+			$serializer->startSerialization();
+			$serializer->serializeExpData( SMWExporter::getInstance()->getOntologyExpData( '' ) );
+
+			while ( $row = $res->getNext() ) {
+				$subjectDi = reset( $row )->getResultSubject();
+				$data = SMWExporter::getInstance()->makeExportDataForSubject( $subjectDi );
+
+				foreach ( $row as $resultarray ) {
+					$printreq = $resultarray->getPrintRequest();
+					$property = null;
+
+					switch ( $printreq->getMode() ) {
+						case PrintRequest::PRINT_PROP:
+							$property = $printreq->getData()->getDataItem();
+						break;
+						case PrintRequest::PRINT_CATS:
+							$property = new DIProperty( '_TYPE' );
+						break;
+						case PrintRequest::PRINT_CCAT:
+							// not serialised right now
+						break;
+						case PrintRequest::PRINT_THIS:
+							// ignored here (object is always included in export)
+						break;
+					}
+
+					if ( !is_null( $property ) ) {
+						SMWExporter::getInstance()->addPropertyValues( $property, $resultarray->getContent(), $data, $subjectDi );
+					}
+				}
+				$serializer->serializeExpData( $data );
+			}
+
+			$serializer->finishSerialization();
+
+			return $serializer->flushContent();
+		} else { // just make link to feed
+			$this->isHTML = ( $outputMode == SMW_OUTPUT_HTML ); // yes, our code can be viewed as HTML if requested, no more parsing needed
+
+			return $this->getLink( $res, $outputMode )->getText( $outputMode, $this->mLinker );
+		}
+	}
+
+	/**
+	 * @see SMWResultPrinter::getParamDefinitions
+	 *
+	 * @since 1.8
+	 *
+	 * @param ParamDefinition[] $definitions
+	 *
+	 * @return array
+	 */
+	public function getParamDefinitions( array $definitions ) {
+		$definitions = parent::getParamDefinitions( $definitions );
+
+		$definitions['limit']->setDefault( 100 );
+
+		$definitions['searchlabel']->setDefault( wfMessage( 'smw_rdf_link' )->inContentLanguage()->text() );
+
+		$definitions[] = [
+			'name' => 'syntax',
+			'message' => 'smw-paramdesc-rdfsyntax',
+			'values' => [ 'rdfxml', 'turtle' ],
+			'default' => 'rdfxml',
+		];
+
+		return $definitions;
+	}
+
+}