bbende commented on a change in pull request #4629:
URL: https://github.com/apache/nifi/pull/4629#discussion_r514338031
##########
File path:
nifi-nar-bundles/nifi-extension-utils/nifi-hadoop-utils/src/main/java/org/apache/nifi/hadoop/SecurityUtil.java
##########
@@ -141,4 +143,37 @@ public static boolean isSecurityEnabled(final
Configuration config) {
Validate.notNull(config);
return
KERBEROS.equalsIgnoreCase(config.get(HADOOP_SECURITY_AUTHENTICATION));
}
+
+ public static <T> T
callWithUgi(CallableThrowingException<UserGroupInformation, IOException>
ugiProvider, CallableThrowingException<T, IOException> function) throws
IOException {
Review comment:
I haven't looked too closely, but I was also wondering about the need
for `CallableThrowingException `, isn't it basically providing the same thing
as `PrivilegedExceptionAction` ?
I would think the code inside the client services could just be:
```
getUgi().doAs((PrivilegedExceptionAction<Object>)() -> {
...
}
```
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