1 files changed, 135 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/src/MediaWiki/Specials/Admin/CacheStatisticsListTaskHandler.php b/www/wiki/extensions/SemanticMediaWiki/src/MediaWiki/Specials/Admin/CacheStatisticsListTaskHandler.php
new file mode 100644
index 00000000..b5b4a0e7
--- /dev/null
+++ b/www/wiki/extensions/SemanticMediaWiki/src/MediaWiki/Specials/Admin/CacheStatisticsListTaskHandler.php
@@ -0,0 +1,135 @@
+<?php
+
+namespace SMW\MediaWiki\Specials\Admin;
+
+use Html;
+use SMW\ApplicationFactory;
+use SMW\Message;
+use WebRequest;
+
+/**
+ * @license GNU GPL v2+
+ * @since 3.0
+ *
+ * @author mwjames
+ */
+class CacheStatisticsListTaskHandler extends TaskHandler {
+
+	/**
+	 * @var OutputFormatter
+	 */
+	private $outputFormatter;
+
+	/**
+	 * @since 3.0
+	 *
+	 * @param OutputFormatter $outputFormatter
+	 */
+	public function __construct( OutputFormatter $outputFormatter ) {
+		$this->outputFormatter = $outputFormatter;
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * {@inheritDoc}
+	 */
+	public function getSection() {
+		return self::SECTION_SUPPLEMENT;
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * {@inheritDoc}
+	 */
+	public function hasAction() {
+		return true;
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * {@inheritDoc}
+	 */
+	public function isTaskFor( $task ) {
+		return $task === 'stats/cache';
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * {@inheritDoc}
+	 */
+	public function getHtml() {
+
+		$link = $this->outputFormatter->createSpecialPageLink(
+			$this->msg( 'smw-admin-supplementary-operational-statistics-cache-title' ),
+			[ 'action' => 'stats/cache' ]
+		);
+
+		return Html::rawElement(
+			'li',
+			[],
+			$this->msg(
+				[
+					'smw-admin-supplementary-operational-statistics-cache-intro',
+					$link
+				]
+			)
+		);
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * {@inheritDoc}
+	 */
+	public function handleRequest( WebRequest $webRequest ) {
+
+		$this->outputFormatter->setPageTitle(
+			$this->msg( 'smw-admin-supplementary-operational-statistics-cache-title' )
+		);
+
+		$this->outputFormatter->addParentLink(
+			[ 'action' => 'stats' ],
+			'smw-admin-supplementary-operational-statistics-title'
+		);
+
+		$this->outputQueryCacheStatistics();
+	}
+
+	private function outputQueryCacheStatistics() {
+
+		$this->outputFormatter->addHTML(
+			Html::element( 'h2', [], $this->msg( 'smw-admin-statistics-querycache-title' ) )
+		);
+
+		$cachedQueryResultPrefetcher = ApplicationFactory::getInstance()->singleton( 'CachedQueryResultPrefetcher' );
+
+		if ( !$cachedQueryResultPrefetcher->isEnabled() ) {
+			$msg = $this->msg(
+				[ 'smw-admin-statistics-querycache-disabled' ],
+				Message::PARSE
+			);
+
+			return $this->outputFormatter->addHTML(
+				Html::rawElement( 'p', [], $msg )
+			);
+		}
+
+		$msg = $this->msg(
+			[ 'smw-admin-statistics-querycache-explain' ],
+			Message::PARSE
+		);
+
+		$this->outputFormatter->addHTML(
+			Html::rawElement( 'p', [], $msg )
+		);
+
+		$this->outputFormatter->addAsPreformattedText(
+			$this->outputFormatter->encodeAsJson( $cachedQueryResultPrefetcher->getStats() )
+		);
+	}
+
+}