@NotThreadSafe
final class ShardDataTreeTransactionChain extends ShardDataTreeTransactionParent
implements Identifiable<LocalHistoryIdentifier> {
+
private static final Logger LOG = LoggerFactory.getLogger(ShardDataTreeTransactionChain.class);
private final LocalHistoryIdentifier chainId;
private final ShardDataTree dataTree;
Preconditions.checkState(openTransaction == null, "Transaction %s is open", openTransaction);
if (previousTx == null) {
+ LOG.debug("Opening an unchained snapshot in {}", chainId);
return dataTree.takeSnapshot();
- } else {
- return previousTx.getSnapshot();
}
+
+ LOG.debug("Reusing a chained snapshot in {}", chainId);
+ return previousTx.getSnapshot();
}
ReadOnlyShardDataTreeTransaction newReadOnlyTransaction(final TransactionIdentifier txId) {
final DataTreeSnapshot snapshot = getSnapshot();
LOG.debug("Allocated read-only transaction {} snapshot {}", txId, snapshot);
- return new ReadOnlyShardDataTreeTransaction(txId, snapshot);
+ return new ReadOnlyShardDataTreeTransaction(this, txId, snapshot);
}
ReadWriteShardDataTreeTransaction newReadWriteTransaction(final TransactionIdentifier txId) {
void close() {
closed = true;
+ LOG.debug("Closing chain {}", chainId);
}
@Override
- protected void abortTransaction(final AbstractShardDataTreeTransaction<?> transaction) {
+ void abortFromTransactionActor(final AbstractShardDataTreeTransaction<?> transaction) {
if (transaction instanceof ReadWriteShardDataTreeTransaction) {
Preconditions.checkState(openTransaction != null,
"Attempted to abort transaction %s while none is outstanding", transaction);
- LOG.debug("Aborted transaction {}", transaction);
+ LOG.debug("Aborted open transaction {}", transaction);
openTransaction = null;
}
}
@Override
- protected ShardDataTreeCohort finishTransaction(final ReadWriteShardDataTreeTransaction transaction) {
+ void abortTransaction(final AbstractShardDataTreeTransaction<?> transaction, final Runnable callback) {
+ abortFromTransactionActor(transaction);
+ dataTree.abortTransaction(transaction, callback);
+ }
+
+ @Override
+ ShardDataTreeCohort finishTransaction(final ReadWriteShardDataTreeTransaction transaction) {
Preconditions.checkState(openTransaction != null,
"Attempted to finish transaction %s while none is outstanding", transaction);
}
@Override
- ShardDataTreeCohort createReadyCohort(final TransactionIdentifier txId, final DataTreeModification modification) {
- return dataTree.createReadyCohort(txId, modification);
+ ShardDataTreeCohort createFailedCohort(final TransactionIdentifier txId, final DataTreeModification mod,
+ final Exception failure) {
+ return dataTree.createFailedCohort(txId, mod, failure);
+ }
+
+ @Override
+ ShardDataTreeCohort createReadyCohort(final TransactionIdentifier txId, final DataTreeModification mod) {
+ return dataTree.createReadyCohort(txId, mod);
}
}