1 files changed, 133 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/src/Exporter/ResourceBuilders/PropertyValueResourceBuilder.php b/www/wiki/extensions/SemanticMediaWiki/src/Exporter/ResourceBuilders/PropertyValueResourceBuilder.php
new file mode 100644
index 00000000..d8eb3dc4
--- /dev/null
+++ b/www/wiki/extensions/SemanticMediaWiki/src/Exporter/ResourceBuilders/PropertyValueResourceBuilder.php
@@ -0,0 +1,133 @@
+<?php
+
+namespace SMW\Exporter\ResourceBuilders;
+
+use SMW\ApplicationFactory;
+use SMW\DIProperty;
+use SMW\Exporter\ResourceBuilder;
+use SMWDataItem as DataItem;
+use SMWExpData as ExpData;
+use SMWExporter as Exporter;
+
+/**
+ * @private
+ *
+ * @license GNU GPL v2+
+ * @since 2.5
+ *
+ * @author mwjames
+ */
+class PropertyValueResourceBuilder implements ResourceBuilder {
+
+	/**
+	 * @var Exporter
+	 */
+	protected $exporter;
+
+	/**
+	 * @var InMemoryPoolCache
+	 */
+	private $inMemoryPoolCache;
+
+	/**
+	 * @since 2.5
+	 *
+	 * @param Exporter|null $exporter
+	 */
+	public function __construct( Exporter $exporter = null ) {
+		$this->exporter = $exporter;
+
+		if ( $this->exporter === null ) {
+			$this->exporter = Exporter::getInstance();
+		}
+
+		$this->inMemoryPoolCache = ApplicationFactory::getInstance()->getInMemoryPoolCache()->getPoolCacheById(
+			Exporter::POOLCACHE_ID
+		);
+	}
+
+	/**
+	 * @since 2.5
+	 *
+	 * {@inheritDoc}
+	 */
+	public function isResourceBuilderFor( DIProperty $property ) {
+		return true;
+	}
+
+	/**
+	 * @since 2.5
+	 *
+	 * {@inheritDoc}
+	 */
+	public function addResourceValue( ExpData $expData, DIProperty $property, DataItem $dataItem ) {
+
+		$expElement = $this->exporter->getDataItemExpElement(
+			$dataItem
+		);
+
+		if ( $expElement !== null ) {
+			$expData->addPropertyObjectValue(
+				$this->getResourceElementForProperty( $property ),
+				$expElement
+			);
+		}
+
+		$this->addResourceHelperValue(
+			$expData,
+			$property,
+			$dataItem
+		);
+	}
+
+	protected function addResourceHelperValue( ExpData $expData, DIProperty $property, DataItem $dataItem ) {
+
+		$expElementHelper = $this->exporter->getDataItemHelperExpElement(
+			$dataItem
+		);
+
+		if ( $expElementHelper !== null ) {
+			$expData->addPropertyObjectValue(
+				$this->getResourceElementHelperForProperty( $property ),
+				$expElementHelper
+			);
+		}
+	}
+
+	protected function getResourceElementForProperty( $property ) {
+
+		$key = 'resource:builder:' . $property->getKey();
+
+		if ( ( $resourceElement = $this->inMemoryPoolCache->fetch( $key ) ) !== false ) {
+			return $resourceElement;
+		}
+
+		$resourceElement = $this->exporter->getResourceElementForProperty( $property );
+
+		$this->inMemoryPoolCache->save(
+			$key,
+			$resourceElement
+		);
+
+		return $resourceElement;
+	}
+
+	protected function getResourceElementHelperForProperty( $property ) {
+
+		$key = 'resource:builder:aux:' . $property->getKey();
+
+		if ( ( $resourceElement = $this->inMemoryPoolCache->fetch( $key ) ) !== false ) {
+			return $resourceElement;
+		}
+
+		$resourceElement = $this->exporter->getResourceElementForProperty( $property, true );
+
+		$this->inMemoryPoolCache->save(
+			$key,
+			$resourceElement
+		);
+
+		return $resourceElement;
+	}
+
+}