Fix infinite loop on cancel transaction

[controller.git] / opendaylight / md-sal / sal-dom-broker / src / main / java / org / opendaylight / controller / md / sal / dom / broker / impl / DOMForwardedWriteTransaction.java

diff --git a/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/broker/impl/DOMForwardedWriteTransaction.java b/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/broker/impl/DOMForwardedWriteTransaction.java
index 45e18ff2199838c2b9896bd4ef9663e07bafdcb1..7a96c021b971108290daa7d004c63fd688e8070c 100644 (file)
--- a/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/broker/impl/DOMForwardedWriteTransaction.java
+++ b/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/broker/impl/DOMForwardedWriteTransaction.java
@@ -108,6 +108,7 @@ class DOMForwardedWriteTransaction<T extends DOMStoreWriteTransaction> extends
         if (impl != null) {
             LOG.trace("Transaction {} cancelled before submit", getIdentifier());
             FUTURE_UPDATER.lazySet(this, CANCELLED_FUTURE);
+            closeSubtransactions();
             return true;
         }
 
@@ -128,6 +129,7 @@ class DOMForwardedWriteTransaction<T extends DOMStoreWriteTransaction> extends
     }
 
     @Override
+    @SuppressWarnings("checkstyle:illegalcatch")
     public CheckedFuture<Void, TransactionCommitFailedException> submit() {
         final AbstractDOMForwardedTransactionFactory<?> impl = IMPL_UPDATER.getAndSet(this, null);
         checkRunning(impl);
@@ -135,12 +137,17 @@ class DOMForwardedWriteTransaction<T extends DOMStoreWriteTransaction> extends
         final Collection<T> txns = getSubtransactions();
         final Collection<DOMStoreThreePhaseCommitCohort> cohorts = new ArrayList<>(txns.size());
 
-        // FIXME: deal with errors thrown by backed (ready and submit can fail in theory)
-        for (DOMStoreWriteTransaction txn : txns) {
-            cohorts.add(txn.ready());
-        }
+        CheckedFuture<Void, TransactionCommitFailedException> ret;
+        try {
+            for (DOMStoreWriteTransaction txn : txns) {
+                cohorts.add(txn.ready());
+            }
 
-        final CheckedFuture<Void, TransactionCommitFailedException> ret = impl.submit(this, cohorts);
+            ret = impl.submit(this, cohorts);
+        } catch (RuntimeException e) {
+            ret = Futures.immediateFailedCheckedFuture(
+                    TransactionCommitFailedExceptionMapper.COMMIT_ERROR_MAPPER.apply(e));
+        }
         FUTURE_UPDATER.lazySet(this, ret);
         return ret;
     }