import akka.actor.ActorRef;
import com.google.common.annotations.Beta;
+import java.util.AbstractMap.SimpleImmutableEntry;
+import java.util.Map.Entry;
import javax.annotation.concurrent.NotThreadSafe;
+import org.opendaylight.controller.cluster.access.concepts.Request;
import org.opendaylight.controller.cluster.access.concepts.RequestEnvelope;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
@Beta
@NotThreadSafe
public final class ConnectedClientConnection<T extends BackendInfo> extends AbstractReceivingClientConnection<T> {
- private static final Logger LOG = LoggerFactory.getLogger(ConnectedClientConnection.class);
-
- private long nextTxSequence;
-
public ConnectedClientConnection(final ClientActorContext context, final Long cookie, final T backend) {
super(context, cookie, backend);
}
- private void transmit(final ConnectionEntry entry) {
- final long txSequence = nextTxSequence++;
-
- final RequestEnvelope toSend = new RequestEnvelope(entry.getRequest().toVersion(remoteVersion()), sessionId(),
- txSequence);
-
- // We need to enqueue the request before we send it to the actor, as we may be executing on a different thread
- // than the client actor thread, in which case the round-trip could be made faster than we can enqueue --
- // in which case the receive routine would not find the entry.
- final TransmittedConnectionEntry txEntry = new TransmittedConnectionEntry(entry, sessionId(), txSequence,
- readTime());
- appendToInflight(txEntry);
-
- final ActorRef actor = remoteActor();
- LOG.trace("Transmitting request {} as {} to {}", entry.getRequest(), toSend, actor);
- actor.tell(toSend, ActorRef.noSender());
- }
-
@Override
- void enqueueEntry(final ConnectionEntry entry) {
- if (inflightSize() < remoteMaxMessages()) {
- transmit(entry);
- LOG.debug("Enqueued request {} to queue {}", entry.getRequest(), this);
- } else {
- LOG.debug("Queue is at capacity, delayed sending of request {}", entry.getRequest());
- super.enqueueEntry(entry);
- }
+ ClientActorBehavior<T> reconnectConnection(final ClientActorBehavior<T> current) {
+ final ReconnectingClientConnection<T> next = new ReconnectingClientConnection<>(this);
+ setForwarder(new SimpleReconnectForwarder(next));
+ current.reconnectConnection(this, next);
+ return current;
}
@Override
- void sendMessages(final int count) {
- int toSend = count;
-
- while (toSend > 0) {
- final ConnectionEntry e = dequeEntry();
- if (e == null) {
- break;
- }
-
- LOG.debug("Transmitting entry {}", e);
- transmit(e);
- toSend--;
- }
+ int remoteMaxMessages() {
+ return backend().getMaxMessages();
}
@Override
- ClientActorBehavior<T> reconnectConnection(final ClientActorBehavior<T> current) {
- final ReconnectingClientConnection<T> next = new ReconnectingClientConnection<>(this);
- setForwarder(new SimpleReconnectForwarder(next));
- current.reconnectConnection(this, next);
- return current;
+ Entry<ActorRef, RequestEnvelope> prepareForTransmit(final Request<?, ?> req) {
+ return new SimpleImmutableEntry<>(backend().getActor(), new RequestEnvelope(
+ req.toVersion(backend().getVersion()), backend().getSessionId(), nextTxSequence()));
}
}