exceptionfactory commented on a change in pull request #4852:
URL: https://github.com/apache/nifi/pull/4852#discussion_r583908315
##########
File path:
nifi-nar-bundles/nifi-framework-bundle/nifi-stateless-bundle/nifi-stateless-engine/src/main/java/org/apache/nifi/stateless/flow/StandardStatelessDataflowFactory.java
##########
@@ -148,7 +149,19 @@ public StatelessDataflow createDataflow(final
StatelessEngineConfiguration engin
narClassLoaders, extensionClients);
final VariableRegistry variableRegistry =
VariableRegistry.EMPTY_REGISTRY;
- final PropertyEncryptor encryptor =
getPropertyEncryptor(engineConfiguration.getSensitivePropsKey());
+ final Supplier<PropertyEncryptor> encryptorFactory = new
Supplier<PropertyEncryptor>() {
+ private PropertyEncryptor created = null;
+
+ @Override
+ public synchronized PropertyEncryptor get() {
Review comment:
Is it worth considering a more optimized locking strategy than
method-level synchronization since this may get called multiple times? Some
options include checking the `PropertyEncryptor` instance for null and then
synchronizing around that object, or leveraging Apache Commons
`AtomicInitializer`, or implementing something along the lines of that class.
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