* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
-
package org.opendaylight.controller.messagebus.app.impl;
-import java.util.Map;
-import java.util.regex.Pattern;
+import static java.util.Objects.requireNonNull;
-import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
-import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
+import com.google.common.util.concurrent.FluentFuture;
+import com.google.common.util.concurrent.FutureCallback;
+import com.google.common.util.concurrent.MoreExecutors;
+import java.util.Collection;
+import java.util.Optional;
+import java.util.UUID;
+import java.util.concurrent.CopyOnWriteArraySet;
+import java.util.concurrent.ExecutionException;
+import java.util.regex.Pattern;
+import org.opendaylight.mdsal.binding.api.DataObjectModification;
+import org.opendaylight.mdsal.binding.api.DataTreeChangeListener;
+import org.opendaylight.mdsal.binding.api.DataTreeIdentifier;
+import org.opendaylight.mdsal.binding.api.DataTreeModification;
+import org.opendaylight.mdsal.binding.api.ReadTransaction;
+import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.messagebus.eventaggregator.rev141202.NotificationPattern;
import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.messagebus.eventaggregator.rev141202.TopicId;
+import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.messagebus.eventsource.rev141202.DisJoinTopicInput;
+import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.messagebus.eventsource.rev141202.DisJoinTopicInputBuilder;
+import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.messagebus.eventsource.rev141202.DisJoinTopicOutput;
import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.messagebus.eventsource.rev141202.EventSourceService;
import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.messagebus.eventsource.rev141202.JoinTopicInput;
import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.messagebus.eventsource.rev141202.JoinTopicInputBuilder;
import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.messagebus.eventsource.rev141202.JoinTopicOutput;
import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRef;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
-import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
+import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
+import org.opendaylight.yangtools.concepts.ListenerRegistration;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.opendaylight.yangtools.yang.common.RpcError;
import org.opendaylight.yangtools.yang.common.RpcResult;
import org.slf4j.LoggerFactory;
-import com.google.common.base.Preconditions;
-
-public class EventSourceTopic implements DataChangeListener {
+@Deprecated(forRemoval = true)
+public final class EventSourceTopic implements DataTreeChangeListener<Node>, AutoCloseable {
private static final org.slf4j.Logger LOG = LoggerFactory.getLogger(EventSourceTopic.class);
+
+ private final CopyOnWriteArraySet<InstanceIdentifier<?>> joinedEventSources = new CopyOnWriteArraySet<>();
private final NotificationPattern notificationPattern;
private final EventSourceService sourceService;
private final Pattern nodeIdPattern;
private final TopicId topicId;
+ private ListenerRegistration<?> listenerRegistration;
- public EventSourceTopic(final NotificationPattern notificationPattern, final String nodeIdPattern, final EventSourceService eventSource) {
- this.notificationPattern = Preconditions.checkNotNull(notificationPattern);
- this.sourceService = eventSource;
- this.nodeIdPattern = Pattern.compile(nodeIdPattern);
+ public static EventSourceTopic create(final NotificationPattern notificationPattern,
+ final String nodeIdRegexPattern, final EventSourceTopology eventSourceTopology) {
+ final EventSourceTopic est = new EventSourceTopic(notificationPattern, nodeIdRegexPattern,
+ eventSourceTopology.getEventSourceService());
+ est.registerListner(eventSourceTopology);
+ est.notifyExistingNodes(eventSourceTopology);
+ return est;
+ }
- this.topicId = new TopicId(Util.getUUIDIdent());
+ private EventSourceTopic(final NotificationPattern notificationPattern, final String nodeIdRegexPattern,
+ final EventSourceService sourceService) {
+ this.notificationPattern = requireNonNull(notificationPattern);
+ this.sourceService = requireNonNull(sourceService);
+ this.nodeIdPattern = Pattern.compile(nodeIdRegexPattern);
+ this.topicId = new TopicId(getUUIDIdent());
+ this.listenerRegistration = null;
+ LOG.info("EventSourceTopic created - topicId {}", topicId.getValue());
}
public TopicId getTopicId() {
}
@Override
- public void onDataChanged(final AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> event) {
- for (final Map.Entry<InstanceIdentifier<?>, DataObject> changeEntry : event.getUpdatedData().entrySet()) {
- if (changeEntry.getValue() instanceof Node) {
- final Node node = (Node) changeEntry.getValue();
- if (nodeIdPattern.matcher(node.getId().getValue()).matches()) {
- notifyNode(changeEntry.getKey());
- }
+ public void onDataTreeChanged(final Collection<DataTreeModification<Node>> changes) {
+ for (DataTreeModification<Node> change: changes) {
+ final DataObjectModification<Node> rootNode = change.getRootNode();
+ switch (rootNode.getModificationType()) {
+ case WRITE:
+ case SUBTREE_MODIFIED:
+ final Node node = rootNode.getDataAfter();
+ if (getNodeIdRegexPattern().matcher(node.getNodeId().getValue()).matches()) {
+ notifyNode(change.getRootPath().getRootIdentifier());
+ }
+ break;
+ default:
+ break;
}
}
}
public void notifyNode(final InstanceIdentifier<?> nodeId) {
-
+ LOG.debug("Notify node: {}", nodeId);
try {
- RpcResult<JoinTopicOutput> rpcResultJoinTopic = sourceService.joinTopic(getJoinTopicInputArgument(nodeId)).get();
- if(rpcResultJoinTopic.isSuccessful() == false){
- for(RpcError err : rpcResultJoinTopic.getErrors()){
- LOG.error("Can not join topic: [{}] on node: [{}]. Error: {}",getTopicId().getValue(),nodeId.toString(),err.toString());
+ final RpcResult<JoinTopicOutput> rpcResultJoinTopic =
+ sourceService.joinTopic(getJoinTopicInputArgument(nodeId)).get();
+ if (!rpcResultJoinTopic.isSuccessful()) {
+ for (final RpcError err : rpcResultJoinTopic.getErrors()) {
+ LOG.error("Can not join topic: [{}] on node: [{}]. Error: {}", getTopicId().getValue(),
+ nodeId.toString(), err.toString());
}
+ } else {
+ joinedEventSources.add(nodeId);
}
- } catch (final Exception e) {
+ } catch (InterruptedException | ExecutionException e) {
LOG.error("Could not invoke join topic for node {}", nodeId);
}
}
+ private void notifyExistingNodes(final EventSourceTopology eventSourceTopology) {
+ LOG.debug("Notify existing nodes");
+ final Pattern nodeRegex = this.nodeIdPattern;
+
+ final FluentFuture<Optional<Topology>> future;
+ try (ReadTransaction tx = eventSourceTopology.getDataBroker().newReadOnlyTransaction()) {
+ future = tx.read(LogicalDatastoreType.OPERATIONAL, EventSourceTopology.EVENT_SOURCE_TOPOLOGY_PATH);
+ }
+
+ future.addCallback(new FutureCallback<Optional<Topology>>() {
+ @Override
+ public void onSuccess(final Optional<Topology> data) {
+ if (data.isPresent()) {
+ for (final Node node : data.get().nonnullNode().values()) {
+ if (nodeRegex.matcher(node.getNodeId().getValue()).matches()) {
+ notifyNode(EventSourceTopology.EVENT_SOURCE_TOPOLOGY_PATH.child(Node.class, node.key()));
+ }
+ }
+ }
+ }
+
+ @Override
+ public void onFailure(final Throwable ex) {
+ LOG.error("Can not notify existing nodes", ex);
+ }
+ }, MoreExecutors.directExecutor());
+ }
+
private JoinTopicInput getJoinTopicInputArgument(final InstanceIdentifier<?> path) {
final NodeRef nodeRef = new NodeRef(path);
final JoinTopicInput jti =
return jti;
}
+ public Pattern getNodeIdRegexPattern() {
+ return nodeIdPattern;
+ }
+
+ private DisJoinTopicInput getDisJoinTopicInputArgument(final InstanceIdentifier<?> eventSourceNodeId) {
+ final NodeRef nodeRef = new NodeRef(eventSourceNodeId);
+ final DisJoinTopicInput dji = new DisJoinTopicInputBuilder()
+ .setNode(nodeRef.getValue())
+ .setTopicId(topicId)
+ .build();
+ return dji;
+ }
+
+ private void registerListner(final EventSourceTopology eventSourceTopology) {
+ this.listenerRegistration = eventSourceTopology.getDataBroker().registerDataTreeChangeListener(
+ DataTreeIdentifier.create(LogicalDatastoreType.OPERATIONAL,
+ EventSourceTopology.EVENT_SOURCE_TOPOLOGY_PATH.child(Node.class)), this);
+ }
+
+ @Override
+ public void close() {
+ if (this.listenerRegistration != null) {
+ this.listenerRegistration.close();
+ }
+ for (final InstanceIdentifier<?> eventSourceNodeId : joinedEventSources) {
+ try {
+ final RpcResult<DisJoinTopicOutput> result = sourceService
+ .disJoinTopic(getDisJoinTopicInputArgument(eventSourceNodeId)).get();
+ if (result.isSuccessful() == false) {
+ for (final RpcError err : result.getErrors()) {
+ LOG.error("Can not destroy topic: [{}] on node: [{}]. Error: {}", getTopicId().getValue(),
+ eventSourceNodeId, err.toString());
+ }
+ }
+ } catch (InterruptedException | ExecutionException ex) {
+ LOG.error("Can not close event source topic / destroy topic {} on node {}.", this.topicId.getValue(),
+ eventSourceNodeId, ex);
+ }
+ }
+ joinedEventSources.clear();
+ }
+
+ private static String getUUIDIdent() {
+ final UUID uuid = UUID.randomUUID();
+ return uuid.toString();
+ }
}