Copilot commented on code in PR #570:
URL: https://github.com/apache/ranger/pull/570#discussion_r2093781135
##########
agents-audit/core/src/main/java/org/apache/ranger/audit/provider/AuditProviderFactory.java:
##########
@@ -390,6 +382,20 @@ public synchronized void init(Properties props, String
appType) {
installJvmShutdownHook(props);
}
+ private AuditDestination createDestination(String destinationClass) {
+ AuditDestination ret = null;
+
+ if (StringUtils.isNotBlank(destinationClass)) {
+ try {
+ ret = (AuditDestination)
Class.forName(destinationClass).newInstance();
+ } catch (Exception e) {
+ LOG.error("Failed to instantiate audit destination {}",
destinationClass, e);
+ }
+ }
+
+ return ret;
Review Comment:
[nitpick] The `createDestination` method catches all exceptions and returns
`null` on failure, which can lead to NPEs when callers invoke methods on the
result. Consider throwing a descriptive exception or explicitly handling a
`null` return.
```suggestion
if (StringUtils.isBlank(destinationClass)) {
throw new IllegalArgumentException("Destination class name
cannot be null or empty");
}
try {
return (AuditDestination)
Class.forName(destinationClass).newInstance();
} catch (Exception e) {
LOG.error("Failed to instantiate audit destination {}",
destinationClass, e);
throw new RuntimeException("Failed to create AuditDestination
for class: " + destinationClass, e);
}
```
##########
agents-audit/core/src/main/java/org/apache/ranger/audit/provider/AuditProviderFactory.java:
##########
@@ -307,13 +307,13 @@ public synchronized void init(Properties props, String
appType) {
if (isAuditToHdfsEnabled) {
LOG.info("HdfsAuditProvider is enabled");
- HdfsAuditProvider hdfsProvider = new HdfsAuditProvider();
+ AuditDestination hdfsProvider =
createDestination("org.apache.ranger.audit.provider.hdfs.HdfsAuditProvider");
Review Comment:
The `createDestination` method returns an `AuditDestination`, but
`hdfsProvider` is later used as an `AuditHandler`. This will cause a compile
error or ClassCastException; consider changing `createDestination` to return
`AuditHandler` or casting its result to the correct interface.
```suggestion
AuditDestination destination =
createDestination("org.apache.ranger.audit.provider.hdfs.HdfsAuditProvider");
if (!(destination instanceof AuditHandler)) {
throw new IllegalStateException("The created destination
is not an instance of AuditHandler: " + destination.getClass().getName());
}
AuditHandler hdfsProvider = (AuditHandler) destination;
```
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