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https://issues.apache.org/jira/browse/APEXMALHAR-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16162567#comment-16162567
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ASF GitHub Bot commented on APEXMALHAR-2034:
--------------------------------------------
SaumyaMohan opened a new pull request #670: APEXMALHAR-2034 Adding new Avro
Module to encapsulate Container File to Avro GenericRecord to POJO
transformations
URL: https://github.com/apache/apex-malhar/pull/670
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> Avro File To POJO Module
> ------------------------
>
> Key: APEXMALHAR-2034
> URL: https://issues.apache.org/jira/browse/APEXMALHAR-2034
> Project: Apache Apex Malhar
> Issue Type: New Feature
> Reporter: devendra tagare
> Assignee: Saumya Mohan
>
> Issue:
> Avro objects are not serialized by Kryo causing the Avro GenericRecord to not
> be available to downstream operators if users don't explicitly mark the
> stream locality at container_local or thread_local.
> Solution:
> This JIRA is used to create a Module on top of AvroFileInputOperator and
> AvroToPojo operators such that downstream operators will access POJO instead
> of Avro GenericRecord. It, therefore, removes the exposure of GenericRecord
> to downstream operators and instead exposes the created POJO to downstream
> operators.
> In this Module, the stream between the two encapsulated operators
> (AvroFileInputOperator and AvroToPojo) is set to CONTAINER_LOCAL.
> Along with this new module, existing avro support files are moved from
> contrib module to a new 'avro' module.
> ---------------------------------------------------------------------------------------------------------------------------------------------------------------------
> *Unit Test*
> Unit test for this Avro module has been added in malhar-avro package.
> *Move to new package and Backward compatibility*
> - Additionally, this module is part of a new package 'malhar-avro' and the
> operator files/tests are all moved from contrib package to the new package.
> Old operator files are marked deprecated and made to extend from new operator
> files for backward compatibility.
> - Creating a new maven module for Avro is in accordance with the JIRA
> https://issues.apache.org/jira/browse/APEXMALHAR-1843.
> - Git history of all the moved files is maintained
> *Application Level Testing*
> - To test the module, I created a sample StreamingApplication and a POJO
> class. This application adds the new AvroToPojoModule, and ConsoleOperator to
> the DAG. ConsoleOperator received and displayed POJO from the module
> - To test backward compatibility, I created sample application which adds
> AvroFileInputOperator and AvroToPojo from the old package to the DAG. It also
> adds ConsoleOperator to the DAG. ConsoleOperator received and displayed POJO
> from the module
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