implemented GossipDeviceStore with multi-provider, annotation support
Change-Id: I1953bdc37b28af79703ebcfc9201a71a2af49ab2
diff --git a/core/store/dist/src/main/java/org/onlab/onos/store/common/impl/Timestamped.java b/core/store/dist/src/main/java/org/onlab/onos/store/common/impl/Timestamped.java
new file mode 100644
index 0000000..2908b16
--- /dev/null
+++ b/core/store/dist/src/main/java/org/onlab/onos/store/common/impl/Timestamped.java
@@ -0,0 +1,79 @@
+package org.onlab.onos.store.common.impl;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import java.util.Objects;
+
+import org.onlab.onos.store.Timestamp;
+
+/**
+ * Wrapper class to store Timestamped value.
+ * @param <T>
+ */
+public final class Timestamped<T> {
+
+ private final Timestamp timestamp;
+ private final T value;
+
+ /**
+ * Creates a time stamped value.
+ *
+ * @param value to be timestamp
+ * @param timestamp the timestamp
+ */
+ public Timestamped(T value, Timestamp timestamp) {
+ this.value = checkNotNull(value);
+ this.timestamp = checkNotNull(timestamp);
+ }
+
+ /**
+ * Returns the value.
+ * @return value
+ */
+ public T value() {
+ return value;
+ }
+
+ /**
+ * Returns the time stamp.
+ * @return time stamp
+ */
+ public Timestamp timestamp() {
+ return timestamp;
+ }
+
+ /**
+ * Tests if this timestamped value is newer than the other.
+ *
+ * @param other timestamped value
+ * @return true if this instance is newer.
+ */
+ public boolean isNewer(Timestamped<T> other) {
+ return this.timestamp.compareTo(checkNotNull(other).timestamp()) > 0;
+ }
+
+ @Override
+ public int hashCode() {
+ return timestamp.hashCode();
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (!(obj instanceof Timestamped)) {
+ return false;
+ }
+ @SuppressWarnings("unchecked")
+ Timestamped<T> that = (Timestamped<T>) obj;
+ return Objects.equals(this.timestamp, that.timestamp);
+ }
+
+ // Default constructor for serialization
+ @Deprecated
+ protected Timestamped() {
+ this.value = null;
+ this.timestamp = null;
+ }
+}