Initial cut at Leadership Manager
Change-Id: I658c6fca3dc6f686e0f7facc9e7b443679ebae1e
Change-Id: I293906add41ff4310e3584847d806345e0312703
Change-Id: I7fb13a72ba4aef10d7c2262b96e0df64efecfcef
diff --git a/core/api/src/main/java/org/onlab/onos/cluster/Leadership.java b/core/api/src/main/java/org/onlab/onos/cluster/Leadership.java
new file mode 100644
index 0000000..c370ab5
--- /dev/null
+++ b/core/api/src/main/java/org/onlab/onos/cluster/Leadership.java
@@ -0,0 +1,59 @@
+package org.onlab.onos.cluster;
+
+import java.util.Objects;
+
+import com.google.common.base.MoreObjects;
+
+/**
+ * Abstract leadership concept.
+ */
+public class Leadership {
+
+ private final String topic;
+ private final ControllerNode leader;
+ private final long term;
+
+ public Leadership(String topic, ControllerNode leader, long term) {
+ this.topic = topic;
+ this.leader = leader;
+ this.term = term;
+ }
+
+ /**
+ * The topic for which this leadership applies.
+ * @return leadership topic.
+ */
+ public String topic() {
+ return topic;
+ }
+
+ /**
+ * The leader for this topic.
+ * @return leader node.
+ */
+ public ControllerNode leader() {
+ return leader;
+ }
+
+ /**
+ * The term number associated with this leadership.
+ * @return leadership term
+ */
+ public long term() {
+ return term;
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(topic, leader, term);
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(this.getClass())
+ .add("topic", topic)
+ .add("leader", leader)
+ .add("term", term)
+ .toString();
+ }
+}
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