[jira] [Assigned] (BEAM-12863) BigQueryUtils doesn't process List or Map with nullables

["Beam JIRA Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/BEAM-12863?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Beam JIRA Bot reassigned BEAM-12863:
------------------------------------

    Assignee:     (was: Matthew Ouyang)

> BigQueryUtils doesn't process List or Map with nullables
> --------------------------------------------------------
>
>                 Key: BEAM-12863
>                 URL: https://issues.apache.org/jira/browse/BEAM-12863
>             Project: Beam
>          Issue Type: Bug
>          Components: io-java-gcp
>    Affects Versions: 2.32.0
>            Reporter: Thomas Pocreau
>            Priority: P3
>              Labels: stale-assigned
>
> When using PubsubAvroToBigQuery Dataflow template, [I noticed this issue. |https://github.com/GoogleCloudPlatform/DataflowTemplates/issues/287]
>  This seems to be related to the way [toBeamRow|https://github.com/apache/beam/blob/v2.32.0/sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/bigquery/BigQueryUtils.java#L593] is handling TableRow with List containing null values.
> The error trace has this path (I only added the relevant ones):
> a. com.google.cloud.teleport.v2.transforms.BigQueryConverters$TableRowToGenericRecordFn.apply(BigQueryConverters.java:548) 
>  b. [org.apache.beam.sdk.io|https://org.apache.beam.sdk.io/].gcp.bigquery.BigQueryUtils.toBeamRow(BigQueryUtils.java:580) 
>  c. [org.apache.beam.sdk.io|https://org.apache.beam.sdk.io/].gcp.bigquery.BigQueryUtils.toBeamRowFieldValue(BigQueryUtils.java:593)
>  d. [org.apache.beam.sdk.io|https://org.apache.beam.sdk.io/].gcp.bigquery.BigQueryUtils.toBeamValue(BigQueryUtils.java:641)
> On c., a validation of null "bqValue" objects is performed; however, it appears that some of the elements are of List type (for BigQuery Record type); therefore, the List object is validated to be non-null, but not the elements of the List.
> On d., the method is executed recursively to process all the elements of the List object; however, it seems that some objects are Null so this method is throwing the NullPointerExceptions.
> *toBeamValue method should probably not used toBeamValue recursively but toBeamRowFieldValue instead.*



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