import akka.util.Timeout;
import com.google.common.base.Preconditions;
import com.google.common.primitives.UnsignedLong;
+import java.util.Set;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionStage;
+import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.concurrent.atomic.AtomicLong;
+import java.util.function.Consumer;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import javax.annotation.concurrent.GuardedBy;
import org.opendaylight.controller.cluster.datastore.exceptions.PrimaryNotFoundException;
import org.opendaylight.controller.cluster.datastore.messages.PrimaryShardInfo;
import org.opendaylight.controller.cluster.datastore.utils.ActorContext;
+import org.opendaylight.yangtools.concepts.Registration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import scala.Function1;
return result;
}
- private synchronized void onStageResolved(final ShardBackendInfo result, final Throwable failure) {
+ private synchronized void onStageResolved(final ShardBackendInfo info, final Throwable failure) {
if (failure == null) {
- this.result = Preconditions.checkNotNull(result);
+ this.result = Preconditions.checkNotNull(info);
} else {
LOG.warn("Failed to resolve shard", failure);
}
private final AtomicLong nextSessionId = new AtomicLong();
private final Function1<ActorRef, ?> connectFunction;
private final ActorContext actorContext;
+ private final Set<Consumer<Long>> staleBackendInfoCallbacks = ConcurrentHashMap.newKeySet();
// FIXME: we really need just ActorContext.findPrimaryShardAsync()
AbstractShardBackendResolver(final ClientIdentifier clientId, final ActorContext actorContext) {
ABIVersion.current()));
}
+ @Override
+ public Registration notifyWhenBackendInfoIsStale(final Consumer<Long> callback) {
+ staleBackendInfoCallbacks.add(callback);
+ return () -> staleBackendInfoCallbacks.remove(callback);
+ }
+
+ protected void notifyStaleBackendInfoCallbacks(Long cookie) {
+ staleBackendInfoCallbacks.forEach(callback -> callback.accept(cookie));
+ }
+
+ protected ActorContext actorContext() {
+ return actorContext;
+ }
+
protected final void flushCache(final String shardName) {
actorContext.getPrimaryShardInfoCache().remove(shardName);
}
LOG.debug("Shard {} resolved to {}, attempting to connect", shardName, info);
FutureConverters.toJava(ExplicitAsk.ask(info.getPrimaryShardActor(), connectFunction, CONNECT_TIMEOUT))
- .whenComplete((response, failure) -> {
- if (failure != null) {
- LOG.debug("Connect attempt to {} failed, will retry", shardName, failure);
- future.completeExceptionally(wrap("Connection attempt failed", failure));
- return;
- }
- if (response instanceof RequestFailure) {
- final Throwable cause = ((RequestFailure<?, ?>) response).getCause().unwrap();
- LOG.debug("Connect attempt to {} failed to process", shardName, cause);
- final Throwable result = cause instanceof NotLeaderException
- ? wrap("Leader moved during establishment", cause) : cause;
- future.completeExceptionally(result);
- return;
- }
-
- LOG.debug("Resolved backend information to {}", response);
- Preconditions.checkArgument(response instanceof ConnectClientSuccess, "Unhandled response {}",
- response);
- final ConnectClientSuccess success = (ConnectClientSuccess) response;
- future.complete(new ShardBackendInfo(success.getBackend(), nextSessionId.getAndIncrement(),
- success.getVersion(), shardName, UnsignedLong.fromLongBits(cookie), success.getDataTree(),
- success.getMaxMessages()));
- });
+ .whenComplete((response, failure) -> onConnectResponse(shardName, cookie, future, response, failure));
+ }
+
+ private void onConnectResponse(final String shardName, final long cookie,
+ final CompletableFuture<ShardBackendInfo> future, final Object response, final Throwable failure) {
+ if (failure != null) {
+ LOG.debug("Connect attempt to {} failed, will retry", shardName, failure);
+ future.completeExceptionally(wrap("Connection attempt failed", failure));
+ return;
+ }
+ if (response instanceof RequestFailure) {
+ final Throwable cause = ((RequestFailure<?, ?>) response).getCause().unwrap();
+ LOG.debug("Connect attempt to {} failed to process", shardName, cause);
+ final Throwable result = cause instanceof NotLeaderException
+ ? wrap("Leader moved during establishment", cause) : cause;
+ future.completeExceptionally(result);
+ return;
+ }
+
+ LOG.debug("Resolved backend information to {}", response);
+ Preconditions.checkArgument(response instanceof ConnectClientSuccess, "Unhandled response %s",
+ response);
+ final ConnectClientSuccess success = (ConnectClientSuccess) response;
+ future.complete(new ShardBackendInfo(success.getBackend(), nextSessionId.getAndIncrement(),
+ success.getVersion(), shardName, UnsignedLong.fromLongBits(cookie), success.getDataTree(),
+ success.getMaxMessages()));
}
}