1 files changed, 51 insertions, 0 deletions
diff --git a/ecomp-portal-BE-common/src/main/java/org/openecomp/portalapp/portal/listener/UserContextListener.java b/ecomp-portal-BE-common/src/main/java/org/openecomp/portalapp/portal/listener/UserContextListener.java
new file mode 100644
index 00000000..05af7388
--- /dev/null
+++ b/ecomp-portal-BE-common/src/main/java/org/openecomp/portalapp/portal/listener/UserContextListener.java
@@ -0,0 +1,51 @@
+/*-
+ * ================================================================================
+ * ECOMP Portal
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property
+ * ================================================================================
+ * 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.
+ * ================================================================================
+ */
+package org.openecomp.portalapp.portal.listener;
+
+import java.util.HashMap;
+
+import javax.servlet.ServletContext;
+import javax.servlet.ServletContextEvent;
+import javax.servlet.ServletContextListener;
+import javax.servlet.annotation.WebListener;
+
+@WebListener
+public class UserContextListener implements ServletContextListener{
+	@SuppressWarnings("rawtypes")
+	public void contextInitialized(ServletContextEvent event){
+    	ServletContext context = event.getServletContext();        
+        //
+        // instanciate a map to store references to all the active
+        // sessions and bind it to context scope.
+        //
+        HashMap activeUsers = new HashMap();
+        context.setAttribute("activeUsers", activeUsers);
+    }
+
+    /**
+     * Needed for the ServletContextListener interface.
+     */
+    public void contextDestroyed(ServletContextEvent event){
+        // To overcome the problem with losing the session references
+        // during server restarts, put code here to serialize the
+        // activeUsers HashMap.  Then put code in the contextInitialized
+        // method that reads and reloads it if it exists...
+    }
+}