implemented GossipDeviceStore with multi-provider, annotation support
Change-Id: I1953bdc37b28af79703ebcfc9201a71a2af49ab2
diff --git a/core/store/dist/src/main/java/org/onlab/onos/store/device/impl/DeviceClockManager.java b/core/store/dist/src/main/java/org/onlab/onos/store/device/impl/DeviceClockManager.java
new file mode 100644
index 0000000..4dfc88b
--- /dev/null
+++ b/core/store/dist/src/main/java/org/onlab/onos/store/device/impl/DeviceClockManager.java
@@ -0,0 +1,56 @@
+package org.onlab.onos.store.device.impl;
+
+import static org.slf4j.LoggerFactory.getLogger;
+
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Service;
+import org.onlab.onos.cluster.MastershipTerm;
+import org.onlab.onos.net.DeviceId;
+import org.onlab.onos.store.ClockService;
+import org.onlab.onos.store.Timestamp;
+import org.onlab.onos.store.impl.OnosTimestamp;
+import org.slf4j.Logger;
+
+/**
+ * Clock service to issue Timestamp based on Device Mastership.
+ */
+@Component(immediate = true)
+@Service
+public class DeviceClockManager implements ClockService {
+
+ private final Logger log = getLogger(getClass());
+
+ // TODO: Implement per device ticker that is reset to 0 at the beginning of a new term.
+ private final AtomicInteger ticker = new AtomicInteger(0);
+ private ConcurrentMap<DeviceId, MastershipTerm> deviceMastershipTerms = new ConcurrentHashMap<>();
+
+ @Activate
+ public void activate() {
+ log.info("Started");
+ }
+
+ @Deactivate
+ public void deactivate() {
+ log.info("Stopped");
+ }
+
+ @Override
+ public Timestamp getTimestamp(DeviceId deviceId) {
+ MastershipTerm term = deviceMastershipTerms.get(deviceId);
+ if (term == null) {
+ throw new IllegalStateException("Requesting timestamp for a deviceId without mastership");
+ }
+ return new OnosTimestamp(term.termNumber(), ticker.incrementAndGet());
+ }
+
+ @Override
+ public void setMastershipTerm(DeviceId deviceId, MastershipTerm term) {
+ deviceMastershipTerms.put(deviceId, term);
+ }
+}