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https://issues.apache.org/jira/browse/GORA-174?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13509916#comment-13509916
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Lewis John McGibbney commented on GORA-174:
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I can confirm that after applying the patch to gora-core then using this
dependency with Nutch 2.x, the Exception is identical as the one documented in
NUTCH-1477. When I compile the webpage avsc's here [0], the webpage class is
generated but with no accessors for the fields in with the union case we are
concerned with. I am also learning with the GoraCompiler (and Avro stuff) so I
do not have a definitive solution to hand just now. I think the serializing and
deserializing problems which seem to be a result of introducing union support
should be addressed as we encounter them.
[0] http://svn.apache.org/repos/asf/nutch/branches/2.x/src/gora/
> GORA compiler does not handle ["string", "null"] unions in the AVRO schema
> --------------------------------------------------------------------------
>
> Key: GORA-174
> URL: https://issues.apache.org/jira/browse/GORA-174
> Project: Apache Gora
> Issue Type: Bug
> Components: schema
> Affects Versions: 0.2.1
> Reporter: Julien Nioche
> Assignee: Alfonso Nishikawa
> Fix For: 0.3
>
> Attachments: failed_tests_after_v3.tar.gz, GORA-174-test.patch,
> GORA-174v2.patch, GORA-174v3.patch
>
>
> See NUTCH-1477 for description.
> We are getting NPE when using the DataFileAvroStore, in order to avoid that I
> modified the schema to allow for null values on some fields e.g. {"name":
> "baseUrl", "type": ["string", "null"] }
> however when generating the code for the schema the accessors are not
> generated by GORA which prevents Nutch from compiling
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