Github user olegz commented on a diff in the pull request:
https://github.com/apache/nifi/pull/319#discussion_r59996122
--- Diff:
nifi-nar-bundles/nifi-update-attribute-bundle/nifi-update-attribute-processor/src/main/java/org/apache/nifi/processors/attributes/UpdateAttribute.java
---
@@ -489,17 +546,32 @@ private FlowFile executeActions(final ProcessSession
session, final ProcessConte
final Map<String, String> attributesToUpdate = new
HashMap<>(actions.size());
final Set<String> attributesToDelete = new
HashSet<>(actions.size());
+ final Map<String, String> statefulAttributesToSet;
+
+ if (statefulAttributes != null){
+ statefulAttributesToSet = new HashMap<>();
+ } else {
+ statefulAttributesToSet = null;
+ }
+
+
// go through each action
for (final Action action : actions.values()) {
if
(!action.getAttribute().equals(DELETE_ATTRIBUTES.getName())) {
try {
- final String newAttributeValue =
getPropertyValue(action.getValue(),
context).evaluateAttributeExpressions(flowfile).getValue();
+ final String newAttributeValue =
getPropertyValue(action.getValue(),
context).evaluateAttributeExpressions(flowfile, statefulAttributes).getValue();
// log if appropriate
if (logger.isDebugEnabled()) {
logger.debug(String.format("%s setting attribute
'%s' = '%s' for %s per rule '%s'.", this, action.getAttribute(),
newAttributeValue, flowfile, ruleName));
}
+ if (statefulAttributesToSet != null) {
+
if(!action.getAttribute().equals("UpdateAttribute.matchedRule")) {
--- End diff --
Same comment as above on NPE
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