Initial OpenECOMP policy/engine commit

[policy/engine.git] / PyPDPServer / src / main / java / org / openecomp / policy / pypdp / notifications / NotificationServer.java

diff --git a/PyPDPServer/src/main/java/org/openecomp/policy/pypdp/notifications/NotificationServer.java b/PyPDPServer/src/main/java/org/openecomp/policy/pypdp/notifications/NotificationServer.java
new file mode 100644 (file)
index 0000000..44324b5
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+++ b/PyPDPServer/src/main/java/org/openecomp/policy/pypdp/notifications/NotificationServer.java
@@ -0,0 +1,90 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ECOMP Policy Engine
+ * ================================================================================
+ * 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.pypdp.notifications;
+
+import java.io.IOException;
+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.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.openecomp.policy.common.logging.flexlogger.FlexLogger;
+import org.openecomp.policy.common.logging.flexlogger.Logger;
+
+import org.openecomp.policy.xacml.api.XACMLErrorConstants;
+
+
+@ServerEndpoint(value = "/org.openecomp.policy.pypdp.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;
+       
+       @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_SYSTEM_ERROR+ "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);
+                       } catch (IOException e) {
+                               logger.info(XACMLErrorConstants.ERROR_SYSTEM_ERROR+ "Error in sending the Event Notification: "+ e.getMessage());
+                       }
+               }
+       }
+       
+       public static void sendNotification(String notification){
+               for(Session session: queue) {
+                       try {
+                               session.getBasicRemote().sendText(notification);
+                       } catch (IOException e) {
+                               logger.info(XACMLErrorConstants.ERROR_SYSTEM_ERROR+ "Error in sending the Event Notification: "+ e.getMessage());
+                       }
+               }
+       }
+       
+       public static void setUpdate(String update) {
+               NotificationServer.update = update;
+       }
+}
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