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Posted to issues@nifi.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2018/01/08 21:20:00 UTC

[jira] [Commented] (NIFI-4749) QueryRecord throws NPE when selecting complex objects if writer inherits schema

    [ https://issues.apache.org/jira/browse/NIFI-4749?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16317092#comment-16317092 ] 

ASF GitHub Bot commented on NIFI-4749:
--------------------------------------

GitHub user markap14 opened a pull request:

    https://github.com/apache/nifi/pull/2386

    NIFI-4749: Pass the record reader's schema along to the ResultSetReco…

    …rdSet so that it is able to resolve the schema for Record fields
    
    Thank you for submitting a contribution to Apache NiFi.
    
    In order to streamline the review of the contribution we ask you
    to ensure the following steps have been taken:
    
    ### For all changes:
    - [ ] Is there a JIRA ticket associated with this PR? Is it referenced 
         in the commit message?
    
    - [ ] Does your PR title start with NIFI-XXXX where XXXX is the JIRA number you are trying to resolve? Pay particular attention to the hyphen "-" character.
    
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You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/markap14/nifi NIFI-4749

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/nifi/pull/2386.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #2386
    
----
commit 5d36c49133e8bd2b205eaf9538f5cd9305d3e920
Author: Mark Payne <ma...@...>
Date:   2018-01-08T21:18:34Z

    NIFI-4749: Pass the record reader's schema along to the ResultSetRecordSet so that it is able to resolve the schema for Record fields

----


> QueryRecord throws NPE when selecting complex objects if writer inherits schema
> -------------------------------------------------------------------------------
>
>                 Key: NIFI-4749
>                 URL: https://issues.apache.org/jira/browse/NIFI-4749
>             Project: Apache NiFi
>          Issue Type: Bug
>    Affects Versions: 1.4.0
>            Reporter: Mark Payne
>            Assignee: Mark Payne
>             Fix For: 1.5.0
>
>         Attachments: NIFI-4749.xml
>
>
> If we create a QueryRecord processor and choose a Record Writer that has a Schema Write Strategy of "Inherit Record," all works okay if the data being queried is 'flat' data. But if the data is hierarchical it can fail when attempting to write out the data, throwing a NullPointerException:
> {code}
> 2018-01-08 15:15:07,645 ERROR [NiFi logging handler] org.apache.nifi.StdErr java.lang.NullPointerException
> 2018-01-08 15:15:07,648 ERROR [NiFi logging handler] org.apache.nifi.StdErr     at org.apache.nifi.json.WriteJsonResult.writeRecord(WriteJsonResult.java:167)
> 2018-01-08 15:15:07,648 ERROR [NiFi logging handler] org.apache.nifi.StdErr     at org.apache.nifi.json.WriteJsonResult.writeValue(WriteJsonResult.java:348)
> 2018-01-08 15:15:07,648 ERROR [NiFi logging handler] org.apache.nifi.StdErr     at org.apache.nifi.json.WriteJsonResult.writeArray(WriteJsonResult.java:385)
> 2018-01-08 15:15:07,649 ERROR [NiFi logging handler] org.apache.nifi.StdErr     at org.apache.nifi.json.WriteJsonResult.writeValue(WriteJsonResult.java:372)
> 2018-01-08 15:15:07,649 ERROR [NiFi logging handler] org.apache.nifi.StdErr     at org.apache.nifi.json.WriteJsonResult.writeRecord(WriteJsonResult.java:181)
> 2018-01-08 15:15:07,649 ERROR [NiFi logging handler] org.apache.nifi.StdErr     at org.apache.nifi.json.WriteJsonResult.writeRecord(WriteJsonResult.java:128)
> 2018-01-08 15:15:07,649 ERROR [NiFi logging handler] org.apache.nifi.StdErr     at org.apache.nifi.serialization.AbstractRecordSetWriter.write(AbstractRecordSetWriter.java:59)
> 2018-01-08 15:15:07,649 ERROR [NiFi logging handler] org.apache.nifi.StdErr     at org.apache.nifi.serialization.AbstractRecordSetWriter.write(AbstractRecordSetWriter.java:52)
> 2018-01-08 15:15:07,649 ERROR [NiFi logging handler] org.apache.nifi.StdErr     at org.apache.nifi.processors.standard.QueryRecord$1.process(QueryRecord.java:305)
> 2018-01-08 15:15:07,649 ERROR [NiFi logging handler] org.apache.nifi.StdErr     at org.apache.nifi.controller.repository.StandardProcessSession.write(StandardProcessSession.java:2571)
> 2018-01-08 15:15:07,649 ERROR [NiFi logging handler] org.apache.nifi.StdErr     at org.apache.nifi.processors.standard.QueryRecord.onTrigger(QueryRecord.java:290)
> 2018-01-08 15:15:07,649 ERROR [NiFi logging handler] org.apache.nifi.StdErr     at org.apache.nifi.processor.AbstractProcessor.onTrigger(AbstractProcessor.java:27)
> 2018-01-08 15:15:07,649 ERROR [NiFi logging handler] org.apache.nifi.StdErr     at org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1122)
> 2018-01-08 15:15:07,649 ERROR [NiFi logging handler] org.apache.nifi.StdErr     at org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:147)
> 2018-01-08 15:15:07,649 ERROR [NiFi logging handler] org.apache.nifi.StdErr     at org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:47)
> 2018-01-08 15:15:07,649 ERROR [NiFi logging handler] org.apache.nifi.StdErr     at org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:128)
> 2018-01-08 15:15:07,649 ERROR [NiFi logging handler] org.apache.nifi.StdErr     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> 2018-01-08 15:15:07,649 ERROR [NiFi logging handler] org.apache.nifi.StdErr     at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
> 2018-01-08 15:15:07,649 ERROR [NiFi logging handler] org.apache.nifi.StdErr     at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
> 2018-01-08 15:15:07,649 ERROR [NiFi logging handler] org.apache.nifi.StdErr     at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
> 2018-01-08 15:15:07,649 ERROR [NiFi logging handler] org.apache.nifi.StdErr     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 2018-01-08 15:15:07,649 ERROR [NiFi logging handler] org.apache.nifi.StdErr     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 2018-01-08 15:15:07,649 ERROR [NiFi logging handler] org.apache.nifi.StdErr     at java.lang.Thread.run(Thread.java:745)
> {code}



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