import akka.actor.ActorSystem;
import akka.actor.PoisonPill;
import akka.dispatch.Mapper;
+import akka.pattern.AskTimeoutException;
import akka.util.Timeout;
import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
import org.opendaylight.controller.cluster.datastore.ClusterWrapper;
import org.opendaylight.controller.cluster.datastore.Configuration;
+import org.opendaylight.controller.cluster.datastore.DatastoreContext;
import org.opendaylight.controller.cluster.datastore.exceptions.LocalShardNotFoundException;
import org.opendaylight.controller.cluster.datastore.exceptions.NotInitializedException;
+import org.opendaylight.controller.cluster.datastore.exceptions.PrimaryNotFoundException;
import org.opendaylight.controller.cluster.datastore.exceptions.TimeoutException;
import org.opendaylight.controller.cluster.datastore.exceptions.UnknownMessageException;
import org.opendaylight.controller.cluster.datastore.messages.ActorNotInitialized;
import org.opendaylight.controller.cluster.datastore.messages.LocalShardFound;
import org.opendaylight.controller.cluster.datastore.messages.LocalShardNotFound;
import org.opendaylight.controller.cluster.datastore.messages.PrimaryFound;
+import org.opendaylight.controller.cluster.datastore.messages.PrimaryNotFound;
import org.opendaylight.controller.cluster.datastore.messages.UpdateSchemaContext;
import org.opendaylight.yangtools.yang.model.api.SchemaContext;
import org.slf4j.Logger;
private static final Logger
LOG = LoggerFactory.getLogger(ActorContext.class);
- private static final FiniteDuration DEFAULT_OPER_DURATION = Duration.create(5, TimeUnit.SECONDS);
-
public static final String MAILBOX = "bounded-mailbox";
+ private static final Mapper<Throwable, Throwable> FIND_PRIMARY_FAILURE_TRANSFORMER =
+ new Mapper<Throwable, Throwable>() {
+ @Override
+ public Throwable apply(Throwable failure) {
+ Throwable actualFailure = failure;
+ if(failure instanceof AskTimeoutException) {
+ // A timeout exception most likely means the shard isn't initialized.
+ actualFailure = new NotInitializedException(
+ "Timed out trying to find the primary shard. Most likely cause is the " +
+ "shard is not initialized yet.");
+ }
+
+ return actualFailure;
+ }
+ };
+
private final ActorSystem actorSystem;
private final ActorRef shardManager;
private final ClusterWrapper clusterWrapper;
private final Configuration configuration;
+ private final DatastoreContext datastoreContext;
private volatile SchemaContext schemaContext;
- private FiniteDuration operationDuration = DEFAULT_OPER_DURATION;
- private Timeout operationTimeout = new Timeout(operationDuration);
+ private final FiniteDuration operationDuration;
+ private final Timeout operationTimeout;
public ActorContext(ActorSystem actorSystem, ActorRef shardManager,
- ClusterWrapper clusterWrapper,
- Configuration configuration) {
+ ClusterWrapper clusterWrapper, Configuration configuration) {
+ this(actorSystem, shardManager, clusterWrapper, configuration,
+ DatastoreContext.newBuilder().build());
+ }
+
+ public ActorContext(ActorSystem actorSystem, ActorRef shardManager,
+ ClusterWrapper clusterWrapper, Configuration configuration,
+ DatastoreContext datastoreContext) {
this.actorSystem = actorSystem;
this.shardManager = shardManager;
this.clusterWrapper = clusterWrapper;
this.configuration = configuration;
+ this.datastoreContext = datastoreContext;
+
+ operationDuration = Duration.create(datastoreContext.getOperationTimeoutInSeconds(),
+ TimeUnit.SECONDS);
+ operationTimeout = new Timeout(operationDuration);
+ }
+
+ public DatastoreContext getDatastoreContext() {
+ return datastoreContext;
}
public ActorSystem getActorSystem() {
}
}
- public void setOperationTimeout(int timeoutInSeconds) {
- operationDuration = Duration.create(timeoutInSeconds, TimeUnit.SECONDS);
- operationTimeout = new Timeout(operationDuration);
- }
-
public SchemaContext getSchemaContext() {
return schemaContext;
}
return Optional.of(actorSystem.actorSelection(path));
}
+ public Future<ActorSelection> findPrimaryShardAsync(final String shardName) {
+ Future<Object> future = executeOperationAsync(shardManager,
+ new FindPrimary(shardName, true).toSerializable(),
+ datastoreContext.getShardInitializationTimeout());
+
+ return future.transform(new Mapper<Object, ActorSelection>() {
+ @Override
+ public ActorSelection checkedApply(Object response) throws Exception {
+ if(response.getClass().equals(PrimaryFound.SERIALIZABLE_CLASS)) {
+ PrimaryFound found = PrimaryFound.fromSerializable(response);
+
+ LOG.debug("Primary found {}", found.getPrimaryPath());
+ return actorSystem.actorSelection(found.getPrimaryPath());
+ } else if(response instanceof ActorNotInitialized) {
+ throw new NotInitializedException(
+ String.format("Found primary shard %s but it's not initialized yet. " +
+ "Please try again later", shardName));
+ } else if(response instanceof PrimaryNotFound) {
+ throw new PrimaryNotFoundException(
+ String.format("No primary shard found for %S.", shardName));
+ }
+
+ throw new UnknownMessageException(String.format(
+ "FindPrimary returned unkown response: %s", response));
+ }
+ }, FIND_PRIMARY_FAILURE_TRANSFORMER, getActorSystem().dispatcher());
+ }
+
/**
* Finds a local shard given its shard name and return it's ActorRef
*
*
* @param shardName the name of the local shard that needs to be found
*/
- public Future<ActorRef> findLocalShardAsync( final String shardName, Timeout timeout) {
+ public Future<ActorRef> findLocalShardAsync( final String shardName) {
Future<Object> future = executeOperationAsync(shardManager,
- new FindLocalShard(shardName, true), timeout);
+ new FindLocalShard(shardName, true), datastoreContext.getShardInitializationTimeout());
return future.map(new Mapper<Object, ActorRef>() {
@Override
*
* @param actor the ActorSelection
* @param message the message to send
+ * @param timeout the operation timeout
* @return a Future containing the eventual result
*/
- public Future<Object> executeOperationAsync(ActorSelection actor, Object message) {
+ public Future<Object> executeOperationAsync(ActorSelection actor, Object message,
+ Timeout timeout) {
Preconditions.checkArgument(actor != null, "actor must not be null");
Preconditions.checkArgument(message != null, "message must not be null");
LOG.debug("Sending message {} to {}", message.getClass().toString(), actor.toString());
- return ask(actor, message, operationTimeout);
+ return ask(actor, message, timeout);
+ }
+
+ /**
+ * Execute an operation on a remote actor asynchronously.
+ *
+ * @param actor the ActorSelection
+ * @param message the message to send
+ * @return a Future containing the eventual result
+ */
+ public Future<Object> executeOperationAsync(ActorSelection actor, Object message) {
+ return executeOperationAsync(actor, message, operationTimeout);
}
/**
Code Review / controller.git / blobdiff