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Posted to issues@nifi.apache.org by "Alex Sherwin (Jira)" <ji...@apache.org> on 2021/08/28 23:50:00 UTC
[jira] [Created] (NIFI-9176) CSVReader @OnEnabled initializes in
wrong order
Alex Sherwin created NIFI-9176:
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Summary: CSVReader @OnEnabled initializes in wrong order
Key: NIFI-9176
URL: https://issues.apache.org/jira/browse/NIFI-9176
Project: Apache NiFi
Issue Type: Bug
Components: Core Framework
Affects Versions: 1.14.0
Reporter: Alex Sherwin
The built-in {{org.apache.nifi.csv.CSVReader}} has a few startup methods annotated with {{@OnEnabled}}
The documentation for {{@OnEnabled}} doesn't specify the order they are invoked in, however it appears they are sorted alphabetically (at least they are in 1.14.0, it may have been different in earlier versions, it looks like that behavior may have changed in 1.14.0)
The problem in {{CSVReader}} is that {{storeSchemaAccessStrategy}} runs before {{storeStaticProperties}} since its first alphabetically.
But, this is the wrong order. The {{storeSchemaAccessStrategy}} depends on some values that {{storeStaticProperties}} sets up.
Unfortunately it doesn't look like {{@OnEnabled}} documents any guaranteed ordering (so, is the current alphabetical sorting just an undocumented implementation detail?)
So either {{storeStaticProperties}} needs to be renamed to come first alphabetically, or {{storeSchemaAccessStrategy}} needs to invoke {{storeStaticProperties}}
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