/*
- * Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.
+ * Copyright (c) 2016, 2017 Cisco Systems, Inc. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
import com.google.common.base.Preconditions;
import com.google.common.base.Verify;
import java.util.ArrayDeque;
-import java.util.Iterator;
+import java.util.Optional;
import java.util.Queue;
import javax.annotation.Nullable;
import javax.annotation.concurrent.NotThreadSafe;
// machinery is asynchronous, hence a reply may be in the works and not available.
long replaySequence = firstReplaySequence;
- final Iterator<?> it = replayQueue.iterator();
- while (it.hasNext()) {
- final Object replay = it.next();
+ for (Object replay : replayQueue) {
if (replaySequence == sequence) {
if (replay instanceof RequestException) {
throw (RequestException) replay;
}
Verify.verify(replay instanceof TransactionSuccess);
- return java.util.Optional.of((TransactionSuccess<?>) replay);
+ return Optional.of((TransactionSuccess<?>) replay);
}
replaySequence++;
// Request order has already been checked by caller and replaySequence()
@SuppressWarnings("checkstyle:IllegalCatch")
- final @Nullable TransactionSuccess<?> handleRequest(final TransactionRequest<?> request,
- final RequestEnvelope envelope, final long now) throws RequestException {
+ @Nullable
+ final TransactionSuccess<?> handleRequest(final TransactionRequest<?> request, final RequestEnvelope envelope,
+ final long now) throws RequestException {
if (request instanceof IncrementTransactionSequenceRequest) {
final IncrementTransactionSequenceRequest incr = (IncrementTransactionSequenceRequest) request;
expectedSequence += incr.getIncrement();
- return recordSuccess(incr.getSequence(), new IncrementTransactionSequenceSuccess(incr.getTarget(),
- incr.getSequence()));
+ return recordSuccess(incr.getSequence(),
+ new IncrementTransactionSequenceSuccess(incr.getTarget(), incr.getSequence()));
}
if (previousFailure != null) {
return doHandleRequest(request, envelope, now);
} catch (RuntimeException e) {
/*
- * The request failed to process, we should not attempt to ever apply it again. Furthermore we cannot
- * accept any further requests from this connection, simply because the transaction state is undefined.
+ * The request failed to process, we should not attempt to ever
+ * apply it again. Furthermore we cannot accept any further requests
+ * from this connection, simply because the transaction state is
+ * undefined.
*/
LOG.debug("{}: Request {} failed to process", persistenceId(), request, e);
previousFailure = new RuntimeRequestException("Request " + request + " failed to process", e);
}
}
- abstract @Nullable TransactionSuccess<?> doHandleRequest(TransactionRequest<?> request, RequestEnvelope envelope,
+ @Nullable
+ abstract TransactionSuccess<?> doHandleRequest(TransactionRequest<?> request, RequestEnvelope envelope,
long now) throws RequestException;
+ abstract void retire();
+
private void recordResponse(final long sequence, final Object response) {
if (replayQueue.isEmpty()) {
firstReplaySequence = sequence;
.add("lastPurgedSequence", lastPurgedSequence)
.toString();
}
-
}