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[ONOS-6426] Handle tombstones in null comparisons in AsyncConsistentMap state machine

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Change-Id: I1a96bb4b7a23703ffcb0daa1376a26f994f10337
This commit is contained in:
Jordan Halterman 2017-05-09 12:15:22 -07:00
parent 5d73df799c
commit e5ce1455ee
1 changed files with 6 additions and 9 deletions
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15
core/store/primitives/src/main/java/org/onosproject/store/primitives/resources/impl/AtomixConsistentMapState.java
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@ -295,8 +295,7 @@ public class AtomixConsistentMapState extends ResourceStateMachine implements Se
if (updateStatus != MapEntryUpdateResult.Status.OK) {
commit.close();
return new MapEntryUpdateResult<>(updateStatus, "", key,
oldMapValue, oldMapValue);
return new MapEntryUpdateResult<>(updateStatus, "", key, oldMapValue, oldMapValue);
}
byte[] newValue = commit.operation().value();
@ -329,8 +328,7 @@ public class AtomixConsistentMapState extends ResourceStateMachine implements Se
}
publish(Lists.newArrayList(new MapEvent<>("", key, newMapValue, oldMapValue)));
return new MapEntryUpdateResult<>(updateStatus, "", key, oldMapValue,
newMapValue);
return new MapEntryUpdateResult<>(updateStatus, "", key, oldMapValue, newMapValue);
} catch (Exception e) {
log.error("State machine operation failed", e);
throw Throwables.propagate(e);
@ -678,16 +676,15 @@ public class AtomixConsistentMapState extends ResourceStateMachine implements Se
*/
private MapEntryUpdateResult.Status validate(UpdateAndGet update) {
MapEntryValue existingValue = mapEntries.get(update.key());
if (existingValue == null && update.value() == null) {
boolean isEmpty = existingValue == null || existingValue.type() == MapEntryValue.Type.TOMBSTONE;
if (isEmpty && update.value() == null) {
return MapEntryUpdateResult.Status.NOOP;
}
if (preparedKeys.contains(update.key())) {
return MapEntryUpdateResult.Status.WRITE_LOCK;
}
byte[] existingRawValue = existingValue == null ? null : existingValue
.value();
Long existingVersion = existingValue == null ? null : existingValue
.version();
byte[] existingRawValue = isEmpty ? null : existingValue.value();
Long existingVersion = isEmpty ? null : existingValue.version();
return update.valueMatch().matches(existingRawValue)
&& update.versionMatch().matches(existingVersion) ? MapEntryUpdateResult.Status.OK
: MapEntryUpdateResult.Status.PRECONDITION_FAILED;