1 files changed, 73 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/src/StoreFactory.php b/www/wiki/extensions/SemanticMediaWiki/src/StoreFactory.php
new file mode 100644
index 00000000..e6251185
--- /dev/null
+++ b/www/wiki/extensions/SemanticMediaWiki/src/StoreFactory.php
@@ -0,0 +1,73 @@
+<?php
+
+namespace SMW;
+
+use RuntimeException;
+use SMW\Exception\StoreNotFoundException;
+use Onoi\MessageReporter\NullMessageReporter;
+use Psr\Log\NullLogger;
+
+/**
+ * Factory method that returns an instance of the default store, or an
+ * alternative store instance.
+ *
+ * @license GNU GPL v2+
+ * @since 1.9
+ *
+ * @author mwjames
+ */
+class StoreFactory {
+
+	/**
+	 * @var array
+	 */
+	private static $instance = [];
+
+	/**
+	 * @since 1.9
+	 *
+	 * @param string|null $class
+	 *
+	 * @return Store
+	 * @throws RuntimeException
+	 * @throws StoreNotFoundException
+	 */
+	public static function getStore( $class = null ) {
+
+		if ( $class === null ) {
+			$class = $GLOBALS['smwgDefaultStore'];
+		}
+
+		if ( !isset( self::$instance[$class] ) ) {
+			self::$instance[$class] = self::newFromClass( $class );
+		}
+
+		return self::$instance[$class];
+	}
+
+	/**
+	 * @since 1.9
+	 */
+	public static function clear() {
+		self::$instance = [];
+	}
+
+	private static function newFromClass( $class ) {
+
+		if ( !class_exists( $class ) ) {
+			throw new RuntimeException( "{$class} was not found!" );
+		}
+
+		$instance = new $class;
+
+		if ( !( $instance instanceof Store ) ) {
+			throw new StoreNotFoundException( "{$class} cannot be used as a store instance!" );
+		}
+
+		$instance->setMessageReporter( new NullMessageReporter() );
+		$instance->setLogger( new NullLogger() );
+
+		return $instance;
+	}
+
+}