1 files changed, 65 insertions, 0 deletions
diff --git a/includes/libs/eventrelayer/EventRelayer.php b/includes/libs/eventrelayer/EventRelayer.php
new file mode 100644
index 00000000..f95ba3f0
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+++ b/includes/libs/eventrelayer/EventRelayer.php
@@ -0,0 +1,65 @@
+<?php
+/**
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @author Aaron Schulz
+ */
+
+/**
+ * Base class for reliable event relays
+ */
+abstract class EventRelayer {
+	/**
+	 * @param array $params
+	 */
+	public function __construct( array $params ) {
+	}
+
+	/**
+	 * @param string $channel
+	 * @param array $event Event data map
+	 * @return bool Success
+	 */
+	final public function notify( $channel, $event ) {
+		return $this->doNotify( $channel, array( $event ) );
+	}
+
+	/**
+	 * @param string $channel
+	 * @param array $events List of event data maps
+	 * @return bool Success
+	 */
+	final public function notifyMulti( $channel, $events ) {
+		return $this->doNotify( $channel, $events );
+	}
+
+	/**
+	 * @param string $channel
+	 * @param array $events List of event data maps
+	 * @return bool Success
+	 */
+	abstract protected function doNotify( $channel, array $events );
+}
+
+/**
+ * No-op class for publishing messages into a PubSub system
+ */
+class EventRelayerNull extends EventRelayer {
+	public function doNotify( $channel, array $events ) {
+		return true;
+	}
+}