1 files changed, 65 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/src/Serializers/ExpDataSerializer.php b/www/wiki/extensions/SemanticMediaWiki/src/Serializers/ExpDataSerializer.php
new file mode 100644
index 00000000..1f3a031d
--- /dev/null
+++ b/www/wiki/extensions/SemanticMediaWiki/src/Serializers/ExpDataSerializer.php
@@ -0,0 +1,65 @@
+<?php
+
+namespace SMW\Serializers;
+
+use OutOfBoundsException;
+use Serializers\Serializer;
+use SMW\Exporter\Element\ExpElement;
+use SMWExpData as ExpData;
+
+/**
+ * @license GNU GPL v2+
+ * @since 2.2
+ *
+ * @author mwjames
+ */
+class ExpDataSerializer implements Serializer {
+
+	/**
+	 * @see Serializer::serialize
+	 *
+	 * @since 2.2
+	 */
+	public function serialize( $expData ) {
+
+		if ( !$expData instanceof ExpData ) {
+			throw new OutOfBoundsException( 'Object is not supported' );
+		}
+
+		return $this->doSerialize( $expData ) + [ 'serializer' => __CLASS__, 'version' => 0.1 ];
+	}
+
+	private function doSerialize( $expData ) {
+
+		$serialization = [
+			'subject' => $expData->getSubject()->getSerialization()
+		];
+
+		$properties = [];
+
+		foreach ( $expData->getProperties() as $property ) {
+			$properties[$property->getUri()] = [
+				'property' => $property->getSerialization(),
+				'children' => $this->doSerializeChildren( $expData->getValues( $property ) )
+			];
+		}
+
+		return $serialization + [ 'data' => $properties ];
+	}
+
+	private function doSerializeChildren( array $elements ) {
+
+		$children = [];
+
+		if ( $elements === [] ) {
+			return $children;
+		}
+
+		foreach ( $elements as $element ) {
+			$children[] = $element instanceof ExpElement ? $element->getSerialization() : $this->doSerialize( $element );
+		}
+
+		return $children;
+	}
+
+}