* The ShardTransaction Actor delegates all actions to DOMDataReadWriteTransaction
* </p>
* <p>
- * Even though the DOMStore and the DOMStoreTransactionChain implement multiple types of transactions
- * the ShardTransaction Actor only works with read-write transactions. This is just to keep the logic simple. At this
- * time there are no known advantages for creating a read-only or write-only transaction which may change over time
- * at which point we can optimize things in the distributed store as well.
- * </p>
- * <p>
* Handles Messages <br/>
* ---------------- <br/>
* <li> {@link org.opendaylight.controller.cluster.datastore.messages.ReadData}
}
}
+ protected boolean returnCloseTransactionReply() {
+ return true;
+ }
+
private void closeTransaction(boolean sendReply) {
getDOMStoreTransaction().close();
- if(sendReply) {
+ if(sendReply && returnCloseTransactionReply()) {
getSender().tell(CloseTransactionReply.INSTANCE.toSerializable(), getSelf());
}
protected void readData(DOMStoreReadTransaction transaction, ReadData message,
final boolean returnSerialized) {
- final ActorRef sender = getSender();
- final ActorRef self = getSelf();
- final YangInstanceIdentifier path = message.getPath();
- final CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> future =
- transaction.read(path);
- future.addListener(new Runnable() {
- @Override
- public void run() {
- try {
- Optional<NormalizedNode<?, ?>> optional = future.checkedGet();
- ReadDataReply readDataReply = new ReadDataReply(optional.orNull());
-
- sender.tell((returnSerialized ? readDataReply.toSerializable(clientTxVersion):
- readDataReply), self);
+ final YangInstanceIdentifier path = message.getPath();
+ try {
+ final CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> future = transaction.read(path);
+ Optional<NormalizedNode<?, ?>> optional = future.checkedGet();
+ ReadDataReply readDataReply = new ReadDataReply(optional.orNull(), clientTxVersion);
- } catch (Exception e) {
- shardStats.incrementFailedReadTransactionsCount();
- sender.tell(new akka.actor.Status.Failure(e), self);
- }
+ sender().tell((returnSerialized ? readDataReply.toSerializable(): readDataReply), self());
- }
- }, getContext().dispatcher());
+ } catch (Exception e) {
+ LOG.debug(String.format("Unexpected error reading path %s", path), e);
+ shardStats.incrementFailedReadTransactionsCount();
+ sender().tell(new akka.actor.Status.Failure(e), self());
+ }
}
protected void dataExists(DOMStoreReadTransaction transaction, DataExists message,