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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (BEAM-2229) GcsFileSystem attempts to create invalid Metadata
Date Tue, 09 May 2017 20:17:04 GMT

    [ https://issues.apache.org/jira/browse/BEAM-2229?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16003458#comment-16003458
] 

ASF GitHub Bot commented on BEAM-2229:
--------------------------------------

Github user dhalperi closed the pull request at:

    https://github.com/apache/beam/pull/3003


> GcsFileSystem attempts to create invalid Metadata
> -------------------------------------------------
>
>                 Key: BEAM-2229
>                 URL: https://issues.apache.org/jira/browse/BEAM-2229
>             Project: Beam
>          Issue Type: Bug
>          Components: sdk-java-gcp
>    Affects Versions: 2.0.0
>            Reporter: Josh Di Fabio
>            Assignee: Daniel Halperin
>            Priority: Trivial
>             Fix For: 2.0.0
>
>   Original Estimate: 0.5h
>  Remaining Estimate: 0.5h
>
> This is the first issue I've raised on Apache's JIRA; if I have made any mistakes in
compiling this ticket then I apologise and would welcome any feedback.
> When matching a path spec, {{GcsFileSystem.toMetadata()}} will sometimes attempt to build
an instance of {{org.apache.beam.sdk.io.fs.MatchResult.Metadata}} without first setting {{sizeBytes}}\[1\].
This always results in an error in the autovalue-generated builder for {{MatchResult.Metadata}}
as {{sizeBytes}} is a required field\[2\].
> I propose that {{GcsFileSystem}} set {{sizeBytes}} to {{0}} when there is no size returned
by GCS, which will presumably happen when the path spec refers either to a directory, or to
a non-existent file. {{GcsFileSystem.toMetadata()}} could be updated as follows:
> *Before*
> {code:java}
>     if (size != null) {
>       ret.setSizeBytes(size.longValue());
>     }
> {code}
> *After*
> {code:java}
>     if (size != null) {
>       ret.setSizeBytes(size.longValue());
>     } else {
>       ret.setSizeBytes(0);
>     }
> {code}
> \[1\] https://github.com/apache/beam/blob/5bfd3e049c0ca0744165b0243a645e8e427032d5/sdks/java/extensions/google-cloud-platform-core/src/main/java/org/apache/beam/sdk/extensions/gcp/storage/GcsFileSystem.java#L240-L242
> \[2\] https://gist.github.com/joshdifabio/fe543b97e02e7ddac8edb73be38deb06#file-autovalue_matchresult_metadata-java-L102-L110



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