Separate cluster management and mastership management to separate packages
Change-Id: If1e399648451842da6dccc644b75b81337b105f9
diff --git a/core/api/src/main/java/org/onlab/onos/mastership/MastershipEvent.java b/core/api/src/main/java/org/onlab/onos/mastership/MastershipEvent.java
new file mode 100644
index 0000000..bd7462d
--- /dev/null
+++ b/core/api/src/main/java/org/onlab/onos/mastership/MastershipEvent.java
@@ -0,0 +1,61 @@
+package org.onlab.onos.mastership;
+
+import org.onlab.onos.cluster.NodeId;
+import org.onlab.onos.event.AbstractEvent;
+import org.onlab.onos.net.DeviceId;
+
+/**
+ * Describes a device mastership event.
+ */
+public class MastershipEvent extends AbstractEvent<MastershipEvent.Type, DeviceId> {
+
+ //do we worry about explicitly setting slaves/equals? probably not,
+ //to keep it simple
+ NodeId master;
+
+ /**
+ * Type of mastership events.
+ */
+ public enum Type {
+ /**
+ * Signifies that the master for a device has changed.
+ */
+ MASTER_CHANGED
+ }
+
+ /**
+ * Creates an event of a given type and for the specified device, master,
+ * and the current time.
+ *
+ * @param type device event type
+ * @param device event device subject
+ * @param master master ID subject
+ */
+ public MastershipEvent(Type type, DeviceId device, NodeId master) {
+ super(type, device);
+ this.master = master;
+ }
+
+ /**
+ * Creates an event of a given type and for the specified device, master,
+ * and time.
+ *
+ * @param type mastership event type
+ * @param device event device subject
+ * @param master master ID subject
+ * @param time occurrence time
+ */
+ public MastershipEvent(Type type, DeviceId device, NodeId master, long time) {
+ super(type, device, time);
+ this.master = master;
+ }
+
+ /**
+ * Returns the current master's ID as a subject.
+ *
+ * @return master ID subject
+ */
+ public NodeId master() {
+ return master;
+ }
+}