pradeepagrawal8184 commented on code in PR #950:
URL: https://github.com/apache/ranger/pull/950#discussion_r3306083894


##########
agents-common/src/main/java/org/apache/ranger/plugin/model/validation/RangerServiceDefHelper.java:
##########
@@ -548,6 +557,15 @@ public Delegate(RangerServiceDef serviceDef, boolean 
checkForCycles) {
             LOG.debug("Found [{}] resource hierarchies for service [{}] 
update-date[{}]: {}", hierarchies.size(), serviceName, serviceDefFreshnessDate, 
hierarchies);
         }
 
+        private RangerResourceDef 
createWildcardEnabledResourceDef(RangerResourceDef resourceDef) {
+            if (resourceDef == null) {
+                return null;

Review Comment:
   The constructor loop already guards with if (res != null) before calling 
createWildcardEnabledResourceDef. The null check here is harmless but 
redundant; 



##########
agents-common/src/main/java/org/apache/ranger/plugin/model/validation/RangerServiceDefHelper.java:
##########
@@ -686,31 +704,11 @@ RangerResourceDef getWildcardEnabledResourceDef(String 
resourceName, Integer pol
             if (policyType == null) {

Review Comment:
   Should this condition be similar to line 621 ?



##########
agents-common/src/main/java/org/apache/ranger/plugin/model/validation/RangerServiceDefHelper.java:
##########
@@ -507,14 +507,23 @@ public Delegate(RangerServiceDef serviceDef, boolean 
checkForCycles) {
 
                         this.hierarchies.put(policyType, 
Collections.unmodifiableSet(hierarchies));
                         hierarchyKeys.put(policyType, 
Collections.unmodifiableSet(hierachyKeys));
+                        Map<String, RangerResourceDef> wildcardMap = new 
HashMap<>(resources.size());
+                        for (RangerResourceDef res : resources) {
+                            if (res != null) {
+                                wildcardMap.put(res.getName(), 
createWildcardEnabledResourceDef(res));

Review Comment:
   is there possibility of duplicate resource in resources object:
   If resources contains duplicate names, later entries considered in 
wildcardMap.



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