1 files changed, 89 insertions, 0 deletions
diff --git a/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/event/comm/Topic.java b/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/event/comm/Topic.java
new file mode 100644
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+++ b/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/event/comm/Topic.java
@@ -0,0 +1,89 @@
+/*-
+ * ============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.onap.policy.common.endpoints.event.comm;
+
+import java.util.List;
+
+import org.onap.policy.common.capabilities.Lockable;
+import org.onap.policy.common.capabilities.Startable;
+
+
+/**
+ * Essential Topic Data
+ */
+public interface Topic extends TopicRegisterable, Startable, Lockable {
+
+    /**
+     * network logger
+     */
+    public static final String NETWORK_LOGGER = "network";
+
+    /**
+     * Underlying Communication infrastructure Types
+     */
+    public enum CommInfrastructure {
+        /**
+         * UEB Communication Infrastructure
+         */
+        UEB,
+        /**
+         * DMAAP Communication Infrastructure
+         */
+        DMAAP,
+        /**
+         * NOOP for internal use only
+         */
+        NOOP,
+        /**
+         * REST Communication Infrastructure
+         */
+        REST
+    }
+
+    /**
+     * gets the topic name
+     * 
+     * @return topic name
+     */
+    public String getTopic();
+
+    /**
+     * gets the communication infrastructure type
+     * 
+     * @return
+     */
+    public CommInfrastructure getTopicCommInfrastructure();
+
+    /**
+     * return list of servers
+     * 
+     * @return bus servers
+     */
+    public List<String> getServers();
+
+    /**
+     * get the more recent events in this topic entity
+     * 
+     * @return list of most recent events
+     */
+    public String[] getRecentEvents();
+
+}