Do not assert seal transition on forward path

[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / main / java / org / opendaylight / controller / cluster / databroker / actors / dds / LocalReadOnlyProxyTransaction.java

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/databroker/actors/dds/LocalReadOnlyProxyTransaction.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/databroker/actors/dds/LocalReadOnlyProxyTransaction.java
index 4fed10d4bf319cb4f399f5f0feedc2a2feadc007..ee5889da767bcdb08f05fc0ab5a7c64bcbb95cab 100644 (file)
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/databroker/actors/dds/LocalReadOnlyProxyTransaction.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/databroker/actors/dds/LocalReadOnlyProxyTransaction.java
@@ -9,6 +9,7 @@ package org.opendaylight.controller.cluster.databroker.actors.dds;
 
 import com.google.common.base.Preconditions;
 import com.google.common.base.Verify;
+import java.util.Optional;
 import java.util.function.Consumer;
 import javax.annotation.concurrent.NotThreadSafe;
 import org.opendaylight.controller.cluster.access.commands.CommitLocalTransactionRequest;
@@ -32,10 +33,16 @@ final class LocalReadOnlyProxyTransaction extends LocalProxyTransaction {
 
     LocalReadOnlyProxyTransaction(final ProxyHistory parent, final TransactionIdentifier identifier,
         final DataTreeSnapshot snapshot) {
-        super(parent, identifier);
+        super(parent, identifier, false);
         this.snapshot = Preconditions.checkNotNull(snapshot);
     }
 
+    LocalReadOnlyProxyTransaction(final ProxyHistory parent, final TransactionIdentifier identifier) {
+        super(parent, identifier, true);
+        // It is an error to touch snapshot once we are DONE
+        this.snapshot = null;
+    }
+
     @Override
     boolean isSnapshotOnly() {
         return true;
@@ -43,37 +50,33 @@ final class LocalReadOnlyProxyTransaction extends LocalProxyTransaction {
 
     @Override
     DataTreeSnapshot readOnlyView() {
-        return snapshot;
+        return Preconditions.checkNotNull(snapshot, "Transaction %s is DONE", getIdentifier());
     }
 
     @Override
     void doDelete(final YangInstanceIdentifier path) {
-        throw new UnsupportedOperationException("Read-only snapshot");
+        throw new UnsupportedOperationException("doDelete");
     }
 
     @Override
     void doMerge(final YangInstanceIdentifier path, final NormalizedNode<?, ?> data) {
-        throw new UnsupportedOperationException("Read-only snapshot");
+        throw new UnsupportedOperationException("doMerge");
     }
 
     @Override
     void doWrite(final YangInstanceIdentifier path, final NormalizedNode<?, ?> data) {
-        throw new UnsupportedOperationException("Read-only snapshot");
+        throw new UnsupportedOperationException("doWrite");
     }
 
     @Override
     CommitLocalTransactionRequest commitRequest(final boolean coordinated) {
-        throw new UnsupportedOperationException("Read-only snapshot");
-    }
-
-    @Override
-    void doSeal() {
-        // No-op
+        throw new UnsupportedOperationException("commitRequest");
     }
 
     @Override
-    void flushState(final AbstractProxyTransaction successor) {
+    Optional<ModifyTransactionRequest> flushState() {
         // No-op
+        return Optional.empty();
     }
 
     @Override