Adding OLS device Type for ODTN project

Change-Id: Ia3472b47ea12d2f2f44de9cb88f20774881530ee
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/TopologyViewMessageHandler.java b/web/gui/src/main/java/org/onosproject/ui/impl/TopologyViewMessageHandler.java
index 1c16a44..021e4e1 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/TopologyViewMessageHandler.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/TopologyViewMessageHandler.java
@@ -775,13 +775,14 @@
         // Send optical first, others later for layered rendering
         for (Device device : services.device().getDevices()) {
             if ((device.type() == Device.Type.ROADM) ||
-                    (device.type() == Device.Type.OTN)) {
+                    (device.type() == Device.Type.OTN) || (device.type() == Device.Type.OLS)) {
                 sendMessage(deviceMessage(new DeviceEvent(DEVICE_ADDED, device)));
             }
         }
         for (Device device : services.device().getDevices()) {
             if ((device.type() != Device.Type.ROADM) &&
-                    (device.type() != Device.Type.OTN) && device.type() != Device.Type.CONTROLLER) {
+                    (device.type() != Device.Type.OTN) && (device.type() != Device.Type.OLS) &&
+                    (device.type() != Device.Type.CONTROLLER)) {
                 sendMessage(deviceMessage(new DeviceEvent(DEVICE_ADDED, device)));
             }
         }