ONOS-4380 Refactor AlarmId and Alarm construction and update

Change-Id: I0117afda723ba27aadb1db306f7ce15b666f102d
diff --git a/apps/faultmanagement/fmmgr/src/test/java/org/onosproject/faultmanagement/impl/PollingAlarmProviderTest.java b/apps/faultmanagement/fmmgr/src/test/java/org/onosproject/faultmanagement/impl/PollingAlarmProviderTest.java
index b96af16..72d8c3c 100644
--- a/apps/faultmanagement/fmmgr/src/test/java/org/onosproject/faultmanagement/impl/PollingAlarmProviderTest.java
+++ b/apps/faultmanagement/fmmgr/src/test/java/org/onosproject/faultmanagement/impl/PollingAlarmProviderTest.java
@@ -26,6 +26,7 @@
 import org.onosproject.cluster.RoleInfo;
 import org.onosproject.incubator.net.faultmanagement.alarm.Alarm;
 import org.onosproject.incubator.net.faultmanagement.alarm.AlarmConsumer;
+import org.onosproject.incubator.net.faultmanagement.alarm.AlarmId;
 import org.onosproject.incubator.net.faultmanagement.alarm.AlarmProvider;
 import org.onosproject.incubator.net.faultmanagement.alarm.AlarmProviderRegistry;
 import org.onosproject.incubator.net.faultmanagement.alarm.AlarmProviderRegistryAdapter;
@@ -96,8 +97,9 @@
     private final DeviceEvent deviceEvent =
             new DeviceEvent(DeviceEvent.Type.DEVICE_AVAILABILITY_CHANGED, device);
 
-
-    private static final DefaultAlarm ALARM = new DefaultAlarm.Builder(
+    private static final String UNIQUE_ID_1 = "unique_id_1";
+    private static final AlarmId A_ID= AlarmId.alarmId(DEVICE_ID, UNIQUE_ID_1);
+    private static final DefaultAlarm ALARM = new DefaultAlarm.Builder(A_ID,
             DEVICE_ID, "aaa", Alarm.SeverityLevel.CRITICAL, 0).build();
 
     private final Driver driver = new MockDriver();