adutra commented on code in PR #3224:
URL: https://github.com/apache/polaris/pull/3224#discussion_r2600451311


##########
runtime/service/src/main/java/org/apache/polaris/service/context/catalog/PolarisPrincipalHolder.java:
##########
@@ -0,0 +1,65 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.polaris.service.context.catalog;
+
+import io.quarkus.security.identity.CurrentIdentityAssociation;
+import io.quarkus.security.identity.SecurityIdentity;
+import jakarta.enterprise.context.RequestScoped;
+import jakarta.enterprise.inject.Produces;
+import java.security.Principal;
+import java.util.concurrent.atomic.AtomicReference;
+import org.apache.polaris.core.PolarisDiagnostics;
+import org.apache.polaris.core.auth.PolarisPrincipal;
+
+@RequestScoped
+public class PolarisPrincipalHolder {
+
+  private final AtomicReference<PolarisPrincipal> polarisPrincipal = new 
AtomicReference<>();
+
+  @Produces
+  @RequestScoped
+  public PolarisPrincipal get(
+      PolarisDiagnostics diagnostics, CurrentIdentityAssociation 
currentIdentityAssociation) {
+    PolarisPrincipal setPrincipal = polarisPrincipal.get();
+
+    if (setPrincipal != null) {
+      return setPrincipal;
+    }
+
+    SecurityIdentity identity =
+        
currentIdentityAssociation.getDeferredIdentity().subscribeAsCompletionStage().getNow(null);
+
+    Principal userPrincipal = identity.getPrincipal();

Review Comment:
   This was cause a NPE when there is no `SecurityIdentity` available.



##########
runtime/service/src/test/java/org/apache/polaris/service/catalog/iceberg/AbstractIcebergCatalogTest.java:
##########
@@ -201,6 +200,7 @@ public Map<String, String> getConfigOverrides() {
           .put("polaris.features.\"ALLOW_TABLE_LOCATION_OVERLAP\"", "true")
           .put("polaris.features.\"LIST_PAGINATION_ENABLED\"", "true")
           .put("polaris.behavior-changes.\"ALLOW_NAMESPACE_CUSTOM_LOCATION\"", 
"true")
+          .put("polaris.test.rootAugmentor.enabled", "true")

Review Comment:
   I think we can achieve the same by simply producing this bean from this 
profile class:
   
   ```java
   public static class Profile extends Profiles.DefaultProfile {
     @Override public Map<String, String> getConfigOverrides() {...}
     
     @Produces @RequestScoped produceTestAugmentor() { return new 
RootPrincipalAugmentor(...); }
   }
   ```
   
   But the current approach is fine too.



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