1 files changed, 42 insertions, 0 deletions
diff --git a/policy-endpoints/src/main/java/org/openecomp/policy/drools/event/comm/TopicListener.java b/policy-endpoints/src/main/java/org/openecomp/policy/drools/event/comm/TopicListener.java
new file mode 100644
index 00000000..7a2e9711
--- /dev/null
+++ b/policy-endpoints/src/main/java/org/openecomp/policy/drools/event/comm/TopicListener.java
@@ -0,0 +1,42 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * policy-endpoints
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.policy.drools.event.comm;
+
+/**
+ * Listener for event messages entering the Policy Engine
+ */
+public interface TopicListener {
+	
+	/**
+	 * Notification of a new Event over a given Topic
+	 * 
+	 * @param commType communication infrastructure type
+	 * @param topic topic name
+	 * @param event event message as a string
+	 * 
+	 * @return boolean.  True if the invoking event dispatcher should continue 
+	 * dispatching the event to subsequent listeners.  False if it is requested
+	 * to the invoking event dispatcher to stop dispatching the same event to
+	 * other listeners of less priority.   This mechanism is generally not used.
+	 */
+	public boolean onTopicEvent(Topic.CommInfrastructure commType, String topic, String event);
+
+}