1 files changed, 112 insertions, 0 deletions
diff --git a/policy-endpoints/src/main/java/org/openecomp/policy/drools/event/comm/bus/internal/BusTopicBase.java b/policy-endpoints/src/main/java/org/openecomp/policy/drools/event/comm/bus/internal/BusTopicBase.java
new file mode 100644
index 00000000..e36e3afc
--- /dev/null
+++ b/policy-endpoints/src/main/java/org/openecomp/policy/drools/event/comm/bus/internal/BusTopicBase.java
@@ -0,0 +1,112 @@
+/*-
+ * ============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.bus.internal;
+
+import java.util.List;
+
+import org.apache.commons.collections4.queue.CircularFifoQueue;
+
+import org.openecomp.policy.drools.event.comm.Topic;
+import org.openecomp.policy.drools.event.comm.bus.BusTopic;
+
+public abstract class BusTopicBase implements BusTopic, Topic {
+	
+	protected List<String> servers;
+
+	protected String topic;
+	
+	protected String apiKey;
+	protected String apiSecret;
+	
+	protected CircularFifoQueue<String> recentEvents = new CircularFifoQueue<String>(10);
+	
+	public BusTopicBase(List<String> servers, 
+						  String topic, 
+						  String apiKey, 
+						  String apiSecret) 
+	throws IllegalArgumentException {
+		
+		if (servers == null || servers.isEmpty()) {
+			throw new IllegalArgumentException("UEB Server(s) must be provided");
+		}
+		
+		if (topic == null || topic.isEmpty()) {
+			throw new IllegalArgumentException("An UEB Topic must be provided");
+		}
+		
+		this.servers = servers;
+		this.topic = topic;
+		
+		this.apiKey = apiKey;
+		this.apiSecret = apiSecret;
+	}
+	
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	public String getTopic() {
+		return topic;
+	}
+	
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	public List<String> getServers() {
+		return servers;
+	}
+	
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	public String getApiKey() {
+		return apiKey;
+	}
+
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	public String getApiSecret() {
+		return apiSecret;
+	}
+	
+	/**
+	 * @return the recentEvents
+	 */
+	@Override
+	public synchronized String[] getRecentEvents() {
+		String[] events = new String[recentEvents.size()];
+		return recentEvents.toArray(events);
+	}
+
+
+	@Override
+	public String toString() {
+		StringBuilder builder = new StringBuilder();
+		builder.append("UebTopicBase [servers=").append(servers).append(", topic=").append(topic).append(", apiKey=")
+				.append(apiKey).append(", apiSecret=").append(apiSecret).append("]");
+		return builder.toString();
+	}
+
+}