import com.google.common.base.Verify;
import com.google.common.primitives.UnsignedLong;
import com.google.common.util.concurrent.FutureCallback;
-import com.google.common.util.concurrent.Futures;
-import com.google.common.util.concurrent.ListenableFuture;
import java.util.Optional;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeoutException;
final class SimpleShardDataTreeCohort extends ShardDataTreeCohort {
private static final Logger LOG = LoggerFactory.getLogger(SimpleShardDataTreeCohort.class);
- private static final ListenableFuture<Void> VOID_FUTURE = Futures.immediateFuture(null);
+
private final DataTreeModification transaction;
private final ShardDataTree dataTree;
private final TransactionIdentifier transactionId;
}
@Override
-
DataTreeModification getDataTreeModification() {
return transaction;
}
}
}
-
@Override
- public void abort(final FutureCallback<Void> callback) {
- dataTree.startAbort(this);
+ public void abort(final FutureCallback<Void> abortCallback) {
+ if (!dataTree.startAbort(this)) {
+ abortCallback.onSuccess(null);
+ return;
+ }
+
+ candidate = null;
state = State.ABORTED;
final Optional<Future<Iterable<Object>>> maybeAborts = userCohorts.abort();
if (!maybeAborts.isPresent()) {
- callback.onSuccess(null);
+ abortCallback.onSuccess(null);
return;
}
final Future<Iterable<Object>> aborts = maybeAborts.get();
if (aborts.isCompleted()) {
- callback.onSuccess(null);
+ abortCallback.onSuccess(null);
return;
}
@Override
public void onComplete(final Throwable failure, final Iterable<Object> objs) {
if (failure != null) {
- callback.onFailure(failure);
+ abortCallback.onFailure(failure);
} else {
- callback.onSuccess(null);
+ abortCallback.onSuccess(null);
}
}
}, ExecutionContexts.global());
checkState(State.PRE_COMMIT_COMPLETE);
this.callback = Preconditions.checkNotNull(newCallback);
state = State.COMMIT_PENDING;
- dataTree.startCommit(this, candidate);
+
+ if (nextFailure == null) {
+ dataTree.startCommit(this, candidate);
+ } else {
+ failedCommit(nextFailure);
+ }
}
private <T> FutureCallback<T> switchState(final State newState) {
return ret;
}
+ void setNewCandidate(DataTreeCandidateTip dataTreeCandidate) {
+ checkState(State.PRE_COMMIT_COMPLETE);
+ this.candidate = Verify.verifyNotNull(dataTreeCandidate);
+ }
+
void successfulCanCommit() {
switchState(State.CAN_COMMIT_COMPLETE).onSuccess(null);
}
*/
// FIXME: this should be asynchronous
void userPreCommit(final DataTreeCandidate dataTreeCandidate) throws ExecutionException, TimeoutException {
+ userCohorts.reset();
userCohorts.canCommit(dataTreeCandidate);
userCohorts.preCommit();
}
switchState(State.FAILED).onFailure(cause);
}
+ void finishCommitPending() {
+ checkState(State.COMMIT_PENDING);
+ // We want to switch the state but keep the callback.
+ callback = switchState(State.FINISH_COMMIT_PENDING);
+ }
+
@Override
public State getState() {
return state;