*/
package org.opendaylight.controller.cluster.datastore;
-import com.google.common.base.Stopwatch;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.concurrent.TimeUnit;
-import javax.annotation.concurrent.NotThreadSafe;
-import org.opendaylight.controller.md.sal.dom.spi.AbstractDOMDataTreeChangeListenerRegistration;
-import org.opendaylight.controller.sal.core.spi.data.AbstractDOMStoreTreeChangePublisher;
+import java.util.List;
+import java.util.Optional;
+import java.util.function.Consumer;
+import org.opendaylight.mdsal.dom.api.DOMDataTreeChangeListener;
+import org.opendaylight.mdsal.dom.spi.AbstractDOMDataTreeChangeListenerRegistration;
+import org.opendaylight.mdsal.dom.spi.store.AbstractDOMStoreTreeChangePublisher;
+import org.opendaylight.yangtools.concepts.ListenerRegistration;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidateNode;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidates;
+import org.opendaylight.yangtools.yang.data.tree.api.DataTreeCandidate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Default implementation of ShardDataTreeChangeListenerPublisher that directly generates and publishes
- * notifications for DataTreeChangeListeners.
+ * notifications for DataTreeChangeListeners. This class is NOT thread-safe.
*
* @author Thomas Pantelis
*/
-@NotThreadSafe
final class DefaultShardDataTreeChangeListenerPublisher extends AbstractDOMStoreTreeChangePublisher
implements ShardDataTreeChangeListenerPublisher {
private static final Logger LOG = LoggerFactory.getLogger(DefaultShardDataTreeChangeListenerPublisher.class);
+ private String logContext;
- private final Stopwatch timer = Stopwatch.createUnstarted();
+ DefaultShardDataTreeChangeListenerPublisher(final String logContext) {
+ this.logContext = logContext;
+ }
@Override
- public void publishChanges(final DataTreeCandidate candidate, String logContext) {
- timer.start();
+ public void publishChanges(final DataTreeCandidate candidate) {
+ if (LOG.isTraceEnabled()) {
+ LOG.trace("{}: publishChanges: {}", logContext, candidate);
+ } else {
+ LOG.debug("{}: publishChanges: rootPath: {}", logContext, candidate.getRootPath());
+ }
- try {
- processCandidateTree(candidate);
- } finally {
- timer.stop();
- long elapsedTime = timer.elapsed(TimeUnit.MILLISECONDS);
- if(elapsedTime >= PUBLISH_DELAY_THRESHOLD_IN_MS) {
- LOG.warn("{}: Generation of DataTreeCandidateNode events took longer than expected. Elapsed time: {}",
- logContext, timer);
- } else {
- LOG.debug("{}: Elapsed time for generation of DataTreeCandidateNode events: {}", logContext, timer);
- }
+ processCandidateTree(candidate);
+ }
- timer.reset();
- }
+ @Override
+ protected void notifyListener(final AbstractDOMDataTreeChangeListenerRegistration<?> registration,
+ final List<DataTreeCandidate> changes) {
+ LOG.debug("{}: notifyListener: listener: {}", logContext, registration.getInstance());
+ registration.getInstance().onDataTreeChanged(changes);
}
@Override
- public ShardDataTreeChangeListenerPublisher newInstance() {
- return new DefaultShardDataTreeChangeListenerPublisher();
+ protected void registrationRemoved(final AbstractDOMDataTreeChangeListenerRegistration<?> registration) {
+ LOG.debug("Registration {} removed", registration);
}
@Override
- protected void notifyListeners(final Collection<AbstractDOMDataTreeChangeListenerRegistration<?>> registrations,
- final YangInstanceIdentifier path, final DataTreeCandidateNode node) {
- final Collection<DataTreeCandidate> changes = Collections.<DataTreeCandidate>singleton(
- DataTreeCandidates.newDataTreeCandidate(path, node));
+ public void registerTreeChangeListener(final YangInstanceIdentifier treeId,
+ final DOMDataTreeChangeListener listener, final Optional<DataTreeCandidate> initialState,
+ final Consumer<ListenerRegistration<DOMDataTreeChangeListener>> onRegistration) {
+ registerTreeChangeListener(treeId, listener, onRegistration);
- for (AbstractDOMDataTreeChangeListenerRegistration<?> reg : registrations) {
- reg.getInstance().onDataTreeChanged(changes);
+ if (initialState.isPresent()) {
+ notifySingleListener(treeId, listener, initialState.get(), logContext);
+ } else {
+ listener.onInitialData();
}
}
- @Override
- protected void registrationRemoved(final AbstractDOMDataTreeChangeListenerRegistration<?> registration) {
- LOG.debug("Registration {} removed", registration);
+ void registerTreeChangeListener(final YangInstanceIdentifier treeId, final DOMDataTreeChangeListener listener,
+ final Consumer<ListenerRegistration<DOMDataTreeChangeListener>> onRegistration) {
+ LOG.debug("{}: registerTreeChangeListener: path: {}, listener: {}", logContext, treeId, listener);
+
+ AbstractDOMDataTreeChangeListenerRegistration<DOMDataTreeChangeListener> registration =
+ super.registerTreeChangeListener(treeId, listener);
+
+ onRegistration.accept(registration);
+ }
+
+ static void notifySingleListener(final YangInstanceIdentifier treeId, final DOMDataTreeChangeListener listener,
+ final DataTreeCandidate state, final String logContext) {
+ LOG.debug("{}: notifySingleListener: path: {}, listener: {}", logContext, treeId, listener);
+ DefaultShardDataTreeChangeListenerPublisher publisher =
+ new DefaultShardDataTreeChangeListenerPublisher(logContext);
+ publisher.logContext = logContext;
+ publisher.registerTreeChangeListener(treeId, listener);
+
+ if (!publisher.processCandidateTree(state)) {
+ listener.onInitialData();
+ }
}
}