1 files changed, 141 insertions, 0 deletions
diff --git a/ECOMP-PDP-REST/src/main/java/org/openecomp/policy/pdp/rest/notifications/NotificationServer.java b/ECOMP-PDP-REST/src/main/java/org/openecomp/policy/pdp/rest/notifications/NotificationServer.java
new file mode 100644
index 000000000..d6cda7491
--- /dev/null
+++ b/ECOMP-PDP-REST/src/main/java/org/openecomp/policy/pdp/rest/notifications/NotificationServer.java
@@ -0,0 +1,141 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ECOMP-PDP-REST
+ * ================================================================================
+ * 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.pdp.rest.notifications;
+
+import java.io.IOException;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.security.GeneralSecurityException;
+import java.util.Queue;
+import java.util.concurrent.ConcurrentLinkedQueue;
+
+import javax.websocket.OnClose;
+import javax.websocket.OnError;
+import javax.websocket.OnMessage;
+import javax.websocket.OnOpen;
+import javax.websocket.Session;
+import javax.websocket.server.ServerEndpoint;
+
+import org.openecomp.policy.rest.XACMLRestProperties;
+import org.openecomp.policy.common.logging.eelf.MessageCodes;
+import org.openecomp.policy.common.logging.eelf.PolicyLogger;
+import com.att.nsa.cambria.client.CambriaClientFactory;
+import com.att.nsa.cambria.client.CambriaPublisher;
+import org.openecomp.policy.xacml.api.XACMLErrorConstants;
+import com.att.research.xacml.util.XACMLProperties;
+
+import org.openecomp.policy.common.logging.flexlogger.*;
+
+
+/**
+ * The NotificationServer sends the Server Notifications to the Clients once there is any Event.
+ * WebSockets is being used as a medium for sending Notifications.
+ * UEB is being used as a medium for sending Notifications. 
+ * 
+ * @version 0.1
+ *
+ **/
+@ServerEndpoint(value = "/notifications")
+public class NotificationServer {
+	private static final Logger logger	= FlexLogger.getLogger(NotificationServer.class);
+	private static Queue<Session> queue = new ConcurrentLinkedQueue<Session>();
+	private static String update = null;
+	private static  String hosts = null;
+	private static URL aURL = null;
+	
+	@OnOpen
+	public void openConnection(Session session) {
+		logger.info("Session Connected: " + session.getId());
+		queue.add(session);
+	}
+	
+	@OnClose
+	public void closeConnection(Session session) {
+		queue.remove(session);
+	}
+	
+	@OnError
+	public void error(Session session, Throwable t) {
+		queue.remove(session);
+		logger.info(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Session Error for : " + session.getId() + " Error: " + t.getMessage());
+		
+	}
+	
+	@OnMessage
+	public void Message(String message, Session session) {
+		
+		if(message.equalsIgnoreCase("Manual")) {
+			try {
+				session.getBasicRemote().sendText(update);
+				session.close();
+			} catch (IOException e) {
+				logger.info(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Error in sending the Event Notification: "+ e.getMessage());
+				logger.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Error sending Message update");
+			}	
+		}
+	}
+
+	public static void sendNotification(String notification, String propNotificationType, String pdpURL){
+
+		logger.debug("Notification set to " + propNotificationType);
+		if (propNotificationType.equals("ueb")){
+			String topic = null;
+			try {
+				aURL = new URL(pdpURL);
+				topic = aURL.getHost() + aURL.getPort();
+			} catch (MalformedURLException e1) {
+				pdpURL = pdpURL.replace("/", "");
+				topic = pdpURL.replace(":", "");
+				logger.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Error in parsing out pdpURL for UEB notfication ");
+				PolicyLogger.error(MessageCodes.ERROR_PROCESS_FLOW, e1, "Error in parsing out pdpURL for UEB notfication ");
+			}
+			hosts = XACMLProperties.getProperty(XACMLRestProperties.PROP_NOTIFICATION_UEB_CLUSTER);
+			logger.debug("Creating Publisher for host: " + hosts + " with topic: " + topic);
+			CambriaPublisher pub = null;
+			try {
+				pub = CambriaClientFactory.createSimplePublisher (null, hosts, topic );
+			} catch (MalformedURLException e1) {
+				// TODO Auto-generated catch block
+				e1.printStackTrace();
+			} catch (GeneralSecurityException e1) {
+				// TODO Auto-generated catch block
+				e1.printStackTrace();
+			}
+			try {
+				pub.send( "MyPartitionKey", notification );
+			} catch (IOException e) {
+				logger.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Error sending notification update");
+			}	
+			pub.close();	
+		}
+		for(Session session: queue) {
+			try {
+				session.getBasicRemote().sendText(notification);
+			} catch (IOException e) {
+				logger.info(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Error in sending the Event Notification: "+ e.getMessage());
+			}
+		}
+	}
+	
+	public static void setUpdate(String update) {
+		NotificationServer.update = update;
+	}
+}