X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fsal-common-impl%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fmd%2Fsal%2Fcommon%2Fimpl%2Fservice%2FTwoPhaseCommit.java;h=e201f8835b84182a9f22e9c712a2f8cc0073836f;hb=986d8ca7ceae77314cc3e63461b960a28a032955;hp=e99fc0f24c16d424524c2d1642d2109a5193c173;hpb=2e7347fdc0eb7734ff59a4f902227a93ab6afece;p=controller.git

diff --git a/opendaylight/md-sal/sal-common-impl/src/main/java/org/opendaylight/controller/md/sal/common/impl/service/TwoPhaseCommit.java b/opendaylight/md-sal/sal-common-impl/src/main/java/org/opendaylight/controller/md/sal/common/impl/service/TwoPhaseCommit.java
index e99fc0f24c..e201f8835b 100644
--- a/opendaylight/md-sal/sal-common-impl/src/main/java/org/opendaylight/controller/md/sal/common/impl/service/TwoPhaseCommit.java
+++ b/opendaylight/md-sal/sal-common-impl/src/main/java/org/opendaylight/controller/md/sal/common/impl/service/TwoPhaseCommit.java
@@ -59,7 +59,18 @@ public class TwoPhaseCommit<P extends Path<P>, D extends Object, DCL extends Dat
                 .addAll(transaction.getCreatedOperationalData().keySet())
                 .addAll(transaction.getRemovedOperationalData()).build();
 
-        log.trace("Transaction: {} Affected Subtrees:", transactionId, changedPaths);
+        log.trace("Transaction: {} Affected Subtrees: {}", transactionId, changedPaths);
+
+        // The transaction has no effects, let's just shortcut it
+        if (changedPaths.isEmpty()) {
+            dataBroker.getFinishedTransactionsCount().getAndIncrement();
+            transaction.changeStatus(TransactionStatus.COMMITED);
+
+            log.trace("Transaction: {} Finished successfully (no effects).", transactionId);
+
+            return Rpcs.<TransactionStatus> getRpcResult(true, TransactionStatus.COMMITED,
+                    Collections.<RpcError> emptySet());
+        }
 
         final ImmutableList.Builder<ListenerStateCapture<P, D, DCL>> listenersBuilder = ImmutableList.builder();
         listenersBuilder.addAll(dataBroker.affectedListeners(changedPaths));
@@ -113,7 +124,7 @@ public class TwoPhaseCommit<P extends Path<P>, D extends Object, DCL extends Dat
 
         captureFinalState(listeners);
 
-        log.trace("Transaction: {} Notifying listeners.");
+        log.trace("Transaction: {} Notifying listeners.", transactionId);
 
         publishDataChangeEvent(listeners);
         return Rpcs.<TransactionStatus> getRpcResult(true, TransactionStatus.COMMITED,
@@ -211,14 +222,12 @@ public class TwoPhaseCommit<P extends Path<P>, D extends Object, DCL extends Dat
             @Override
             public void run() {
                 for (final ListenerStateCapture<P, D, DCL> listenerSet : listeners) {
-                    {
-                        DataChangeEvent<P, D> changeEvent = listenerSet.createEvent(transaction);
-                        for (final DataChangeListenerRegistration<P, D, DCL> listener : listenerSet.getListeners()) {
-                            try {
-                                listener.getInstance().onDataChanged(changeEvent);
-                            } catch (Exception e) {
-                                log.error("Unhandled exception when invoking listener {}", listener);
-                            }
+                    DataChangeEvent<P, D> changeEvent = listenerSet.createEvent(transaction);
+                    for (final DataChangeListenerRegistration<P, D, DCL> listener : listenerSet.getListeners()) {
+                        try {
+                            listener.getInstance().onDataChanged(changeEvent);
+                        } catch (Exception e) {
+                            log.error("Unhandled exception when invoking listener {}", listener, e);
                         }
                     }
                 }