renamed OnosTimestamp -> MastershipBasedTimestamp
Change-Id: Ie6ee5d85bc0f5aadfa32e27e1d31e3c1d5c9fea8
diff --git a/core/store/dist/src/main/java/org/onlab/onos/store/common/impl/MastershipBasedTimestamp.java b/core/store/dist/src/main/java/org/onlab/onos/store/common/impl/MastershipBasedTimestamp.java
new file mode 100644
index 0000000..0f4f894
--- /dev/null
+++ b/core/store/dist/src/main/java/org/onlab/onos/store/common/impl/MastershipBasedTimestamp.java
@@ -0,0 +1,94 @@
+package org.onlab.onos.store.common.impl;
+
+import static com.google.common.base.Preconditions.checkArgument;
+
+import java.util.Objects;
+
+import org.onlab.onos.store.Timestamp;
+
+import com.google.common.base.MoreObjects;
+import com.google.common.collect.ComparisonChain;
+
+/**
+ * Default implementation of Timestamp.
+ * TODO: Better documentation.
+ */
+public final class MastershipBasedTimestamp implements Timestamp {
+
+ private final int termNumber;
+ private final int sequenceNumber;
+
+ /**
+ * Default version tuple.
+ *
+ * @param termNumber the mastership termNumber
+ * @param sequenceNumber the sequenceNumber number within the termNumber
+ */
+ public MastershipBasedTimestamp(int termNumber, int sequenceNumber) {
+ this.termNumber = termNumber;
+ this.sequenceNumber = sequenceNumber;
+ }
+
+ @Override
+ public int compareTo(Timestamp o) {
+ checkArgument(o instanceof MastershipBasedTimestamp,
+ "Must be MastershipBasedTimestamp", o);
+ MastershipBasedTimestamp that = (MastershipBasedTimestamp) o;
+
+ return ComparisonChain.start()
+ .compare(this.termNumber, that.termNumber)
+ .compare(this.sequenceNumber, that.sequenceNumber)
+ .result();
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(termNumber, sequenceNumber);
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (!(obj instanceof MastershipBasedTimestamp)) {
+ return false;
+ }
+ MastershipBasedTimestamp that = (MastershipBasedTimestamp) obj;
+ return Objects.equals(this.termNumber, that.termNumber) &&
+ Objects.equals(this.sequenceNumber, that.sequenceNumber);
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(getClass())
+ .add("termNumber", termNumber)
+ .add("sequenceNumber", sequenceNumber)
+ .toString();
+ }
+
+ /**
+ * Returns the termNumber.
+ *
+ * @return termNumber
+ */
+ public int termNumber() {
+ return termNumber;
+ }
+
+ /**
+ * Returns the sequenceNumber number.
+ *
+ * @return sequenceNumber
+ */
+ public int sequenceNumber() {
+ return sequenceNumber;
+ }
+
+ // Default constructor for serialization
+ @Deprecated
+ protected MastershipBasedTimestamp() {
+ this.termNumber = -1;
+ this.sequenceNumber = -1;
+ }
+}