Cancel transaction on failure in restconf

[controller.git] / opendaylight / md-sal / sal-rest-connector / src / main / java / org / opendaylight / controller / sal / restconf / impl / BrokerFacade.java

diff --git a/opendaylight/md-sal/sal-rest-connector/src/main/java/org/opendaylight/controller/sal/restconf/impl/BrokerFacade.java b/opendaylight/md-sal/sal-rest-connector/src/main/java/org/opendaylight/controller/sal/restconf/impl/BrokerFacade.java
index e8701f37e5846e72e9c177ca2188969c7fb9a9da..7cd20ee733dac07483bb378429ff6a6a6f64cc75 100644 (file)
--- a/opendaylight/md-sal/sal-rest-connector/src/main/java/org/opendaylight/controller/sal/restconf/impl/BrokerFacade.java
+++ b/opendaylight/md-sal/sal-rest-connector/src/main/java/org/opendaylight/controller/sal/restconf/impl/BrokerFacade.java
@@ -21,6 +21,7 @@ import java.util.concurrent.Future;
 import javax.ws.rs.core.Response.Status;
 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
+import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
 import org.opendaylight.controller.md.sal.common.impl.util.compat.DataNormalizationException;
 import org.opendaylight.controller.md.sal.common.impl.util.compat.DataNormalizationOperation;
@@ -204,6 +205,7 @@ public class BrokerFacade {
             if (optionalDatastoreData.isPresent() && payload.equals(optionalDatastoreData.get())) {
                 String errMsg = "Post Configuration via Restconf was not executed because data already exists";
                 LOG.trace(errMsg + ":{}", path);
+                rWTransaction.cancel();
                 throw new RestconfDocumentedException("Data already exists for path: " + path, ErrorType.PROTOCOL,
                         ErrorTag.DATA_EXISTS);
             }
@@ -229,7 +231,7 @@ public class BrokerFacade {
     private CheckedFuture<Void, TransactionCommitFailedException> deleteDataViaTransaction(
             final DOMDataWriteTransaction writeTransaction, final LogicalDatastoreType datastore,
             YangInstanceIdentifier path) {
-        LOG.info("Delete " + datastore.name() + " via Restconf: {}", path);
+        LOG.trace("Delete " + datastore.name() + " via Restconf: {}", path);
         writeTransaction.delete(datastore, path);
         return writeTransaction.submit();
     }
@@ -249,21 +251,26 @@ public class BrokerFacade {
             try {
                 currentOp = currentOp.getChild(currentArg);
             } catch (DataNormalizationException e) {
+                rwTx.cancel();
                 throw new IllegalArgumentException(
                         String.format("Invalid child encountered in path %s", normalizedPath), e);
             }
             currentArguments.add(currentArg);
             YangInstanceIdentifier currentPath = YangInstanceIdentifier.create(currentArguments);
 
-            final Optional<NormalizedNode<?, ?>> datastoreData;
+            final Boolean exists;
+
             try {
-                datastoreData = rwTx.read(store, currentPath).get();
-            } catch (InterruptedException | ExecutionException e) {
+
+                CheckedFuture<Boolean, ReadFailedException> future = rwTx.exists(store, currentPath);
+                exists = future.checkedGet();
+            } catch (ReadFailedException e) {
                 LOG.error("Failed to read pre-existing data from store {} path {}", store, currentPath, e);
+                rwTx.cancel();
                 throw new IllegalStateException("Failed to read pre-existing data", e);
             }
 
-            if (!datastoreData.isPresent() && iterator.hasNext()) {
+            if (!exists && iterator.hasNext()) {
                 rwTx.merge(store, currentPath, currentOp.createDefault(currentArg));
             }
         }