package org.opendaylight.controller.clustering.it.provider.impl;
import com.google.common.base.Preconditions;
+import com.google.common.util.concurrent.SettableFuture;
import java.util.Collection;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.ScheduledFuture;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicLong;
import javax.annotation.Nonnull;
import org.opendaylight.controller.md.sal.dom.api.ClusteredDOMDataTreeChangeListener;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
public class IdIntsListener implements ClusteredDOMDataTreeChangeListener {
private static final Logger LOG = LoggerFactory.getLogger(IdIntsListener.class);
+ private static final long SECOND_AS_NANO = 1000000000;
private NormalizedNode<?, ?> localCopy = null;
+ private AtomicLong lastNotifTimestamp = new AtomicLong(0);
+ private ScheduledExecutorService executorService;
+ private ScheduledFuture<?> scheduledFuture;
@Override
public void onDataTreeChanged(@Nonnull final Collection<DataTreeCandidate> changes) {
// There should only be one candidate reported
Preconditions.checkState(changes.size() == 1);
+ lastNotifTimestamp.set(System.nanoTime());
+
// do not log the change into debug, only use trace since it will lead to OOM on default heap settings
LOG.debug("Received data tree changed");
public boolean checkEqual(final NormalizedNode<?, ?> expected) {
return localCopy.equals(expected);
}
+
+ public Future<Void> tryFinishProcessing() {
+ executorService = Executors.newSingleThreadScheduledExecutor();
+ final SettableFuture<Void> settableFuture = SettableFuture.create();
+
+ scheduledFuture = executorService.scheduleAtFixedRate(new CheckFinishedTask(settableFuture), 0, 1, TimeUnit.SECONDS);
+ return settableFuture;
+ }
+
+ private class CheckFinishedTask implements Runnable {
+
+ private final SettableFuture<Void> future;
+
+ public CheckFinishedTask(final SettableFuture<Void> future) {
+ this.future = future;
+ }
+
+ @Override
+ public void run() {
+ if (System.nanoTime() - lastNotifTimestamp.get() > SECOND_AS_NANO * 4) {
+ scheduledFuture.cancel(false);
+ future.set(null);
+
+ executorService.shutdown();
+ }
+ }
+ }
}