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Posted to jira@kafka.apache.org by "Tobias Gies (JIRA)" <ji...@apache.org> on 2017/12/04 16:54:00 UTC

[jira] [Created] (KAFKA-6308) Connect: Struct#equals should use Arrays#deepEquals

Tobias Gies created KAFKA-6308:
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             Summary: Connect: Struct#equals should use Arrays#deepEquals
                 Key: KAFKA-6308
                 URL: https://issues.apache.org/jira/browse/KAFKA-6308
             Project: Kafka
          Issue Type: Bug
          Components: KafkaConnect
    Affects Versions: 1.0.0
            Reporter: Tobias Gies


At the moment, {{org.apache.kafka.connect.data.Struct#equals}} checks two things, after ensuring the incoming {{Object o}} is indeed of the correct type:

* Whether the schemas of {{this}} and {{o}} are equal, via {{Objects.equals}}
* Whether the values of {{this}} and {{o}} are qual, via {{Arrays.equals}}.

The latter check is wrong. {{Arrays.equals}} is meant for one-dimensional arrays of any kind, and thus simply checks the {{equals}} methods of two corresponding elements. However, elements of the {{values}} array may themselves be arrays, for example if a field has the schema {{Schema.OPTIONAL_BYTES_SCHEMA}}.

Given that, the correct method to use to compare the {{values}} arrays of two {{Struct}} instances is {{Arrays.deepEquals}}.



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