initial import
Change-Id: Ief25aef0066ea96bd2c329ccef974c072b3a5a73
diff --git a/of/ctl/src/main/java/net/onrc/onos/of/ctl/registry/ControllerRegistryEntry.java b/of/ctl/src/main/java/net/onrc/onos/of/ctl/registry/ControllerRegistryEntry.java
new file mode 100644
index 0000000..2472f64
--- /dev/null
+++ b/of/ctl/src/main/java/net/onrc/onos/of/ctl/registry/ControllerRegistryEntry.java
@@ -0,0 +1,66 @@
+package net.onrc.onos.of.ctl.registry;
+
+
+
+public class ControllerRegistryEntry implements Comparable<ControllerRegistryEntry> {
+ //
+ // TODO: Refactor the implementation and decide whether controllerId
+ // is needed. If "yes", we might need to consider it inside the
+ // compareTo(), equals() and hashCode() implementations.
+ //
+ private final String controllerId;
+ private final int sequenceNumber;
+
+ public ControllerRegistryEntry(String controllerId, int sequenceNumber) {
+ this.controllerId = controllerId;
+ this.sequenceNumber = sequenceNumber;
+ }
+
+ public String getControllerId() {
+ return controllerId;
+ }
+
+ /**
+ * Compares this object with the specified object for order.
+ * NOTE: the test is based on ControllerRegistryEntry sequence numbers,
+ * and doesn't include the controllerId.
+ *
+ * @param o the object to be compared.
+ * @return a negative integer, zero, or a positive integer as this object
+ * is less than, equal to, or greater than the specified object.
+ */
+ @Override
+ public int compareTo(ControllerRegistryEntry o) {
+ return this.sequenceNumber - o.sequenceNumber;
+ }
+
+ /**
+ * Test whether some other object is "equal to" this one.
+ * NOTE: the test is based on ControllerRegistryEntry sequence numbers,
+ * and doesn't include the controllerId.
+ *
+ * @param obj the reference object with which to compare.
+ * @return true if this object is the same as the obj argument; false
+ * otherwise.
+ */
+ @Override
+ public boolean equals(Object obj) {
+ if (obj instanceof ControllerRegistryEntry) {
+ ControllerRegistryEntry other = (ControllerRegistryEntry) obj;
+ return this.sequenceNumber == other.sequenceNumber;
+ }
+ return false;
+ }
+
+ /**
+ * Get the hash code for the object.
+ * NOTE: the computation is based on ControllerRegistryEntry sequence
+ * numbers, and doesn't include the controller ID.
+ *
+ * @return a hash code value for this object.
+ */
+ @Override
+ public int hashCode() {
+ return Integer.valueOf(this.sequenceNumber).hashCode();
+ }
+}