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https://issues.apache.org/jira/browse/NIFI-3255?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15872081#comment-15872081
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ASF GitHub Bot commented on NIFI-3255:
--------------------------------------
Github user olegz commented on the issue:
https://github.com/apache/nifi/pull/1394
@ijokarumawak addressing it now and will merge. So basically I will be
creating splits via ```FlowFile mergedFlowFile =
session.create(sourceFlowFile);``` passing the source file from ```onTrigger```
to create appropriate linkage.
> SplitText fails with IllegalArgumentException: Destination cannot be within
> sources
> -----------------------------------------------------------------------------------
>
> Key: NIFI-3255
> URL: https://issues.apache.org/jira/browse/NIFI-3255
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Affects Versions: 1.1.0, 1.1.1
> Reporter: Koji Kawamura
> Assignee: Oleg Zhurakousky
> Priority: Critical
> Fix For: 1.2.0
>
>
> If SplitText is configured with Header Line Count grater than 0, and input
> flow file like below is passed, it fails with IllegalArgumentException:
> {code}
> header
> line1
> line2
> {code}
> Stacktrace:
> {code}
> 2016-12-27 16:41:51,016 WARN [Timer-Driven Process Thread-2]
> o.a.n.c.t.ContinuallyRunProcessorTask java.lang.IllegalArgumentException:
> Destination cannot be within sources
> at
> org.apache.nifi.controller.repository.StandardProcessSession.merge(StandardProcessSession.java:2217)
> ~[nifi-framework-core-1.2.0-SNAPSHOT.jar:1.2.0-SNAPSHOT]
> at
> org.apache.nifi.controller.repository.StandardProcessSession.merge(StandardProcessSession.java:2209)
> ~[nifi-framework-core-1.2.0-SNAPSHOT.jar:1.2.0-SNAPSHOT]
> at
> org.apache.nifi.processors.standard.SplitText.generateSplitFlowFiles(SplitText.java:305)
> ~[na:na]
> at
> org.apache.nifi.processors.standard.SplitText.onTrigger(SplitText.java:253)
> ~[na:na]
> at
> org.apache.nifi.processor.AbstractProcessor.onTrigger(AbstractProcessor.java:27)
> ~[nifi-api-1.2.0-SNAPSHOT.jar:1
> {code}
> Marked as critical since this is a regression and breaks existing flow. With
> 1.0, SplitText produces following output flow files to "split" relationship
> with the same input flow file and processor configuration:
> {code}
> # output flow file 1
> header
> line1
> # output flow file 2
> header
> line 2
> {code}
> The related code block in the processor has been covered by unit tests,
> however, since unit test uses MockProcessSession, it skips check conditions
> in StandardProcessSession. MockProcessSession should be updated, too, in
> order to catch this type of issue with Unit testing.
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