Adding protection against UI extension failures crashing the whole UI.
Fixed NPE for null devices when displaying details.
Change-Id: I0053939807ea2493e125c7a1fd58606e4c4d3e02
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/DeviceViewMessageHandler.java b/web/gui/src/main/java/org/onosproject/ui/impl/DeviceViewMessageHandler.java
index 53b16a6..a740a73 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/DeviceViewMessageHandler.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/DeviceViewMessageHandler.java
@@ -18,6 +18,7 @@
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
import com.google.common.collect.ImmutableSet;
+import org.onosproject.cluster.NodeId;
import org.onosproject.mastership.MastershipService;
import org.onosproject.net.AnnotationKeys;
import org.onosproject.net.ConnectPoint;
@@ -86,6 +87,7 @@
private static final String NAME = "name";
private static final String WARN = "warn";
+ private static final String NONE = "none";
private static final String[] COL_IDS = {
AVAILABLE, AVAILABLE_IID, TYPE_IID,
@@ -178,6 +180,7 @@
MastershipService ms = get(MastershipService.class);
Device device = service.getDevice(deviceId);
ObjectNode data = objectNode();
+ NodeId masterFor = ms.getMasterFor(deviceId);
data.put(ID, deviceId.toString());
data.put(NAME, deviceName(device));
@@ -188,7 +191,7 @@
data.put(SW, device.swVersion());
data.put(SERIAL, device.serialNumber());
data.put(CHASSIS_ID, device.chassisId().toString());
- data.put(MASTER_ID, ms.getMasterFor(deviceId).toString());
+ data.put(MASTER_ID, masterFor != null ? masterFor.toString() : NONE);
data.put(PROTOCOL, deviceProtocol(device));
ArrayNode ports = arrayNode();
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/UiWebSocket.java b/web/gui/src/main/java/org/onosproject/ui/impl/UiWebSocket.java
index 1d49d02..449cdec 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/UiWebSocket.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/UiWebSocket.java
@@ -186,12 +186,16 @@
UiMessageHandlerFactory factory = ext.messageHandlerFactory();
if (factory != null) {
factory.newHandlers().forEach(handler -> {
- handler.init(this, directory);
- handler.messageTypes().forEach(type -> handlers.put(type, handler));
+ try {
+ handler.init(this, directory);
+ handler.messageTypes().forEach(type -> handlers.put(type, handler));
- // need to inject the overlay cache into topology message handler
- if (handler instanceof TopologyViewMessageHandler) {
- ((TopologyViewMessageHandler) handler).setOverlayCache(overlayCache);
+ // need to inject the overlay cache into topology message handler
+ if (handler instanceof TopologyViewMessageHandler) {
+ ((TopologyViewMessageHandler) handler).setOverlayCache(overlayCache);
+ }
+ } catch (Exception e) {
+ log.warn("Unable to setup handler {} due to", handler, e);
}
});
}