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https://issues.apache.org/jira/browse/NIFI-1942?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15493968#comment-15493968
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ASF GitHub Bot commented on NIFI-1942:
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Github user JPercivall commented on the issue:
https://github.com/apache/nifi/pull/476
@pvillard31, I know what the problem with the end-line characters is. When
going from the UI to Java, the characters are escaped so that what you input is
transferred over to Java as is. So when you type the characters "\" and "\n"
into the UI the Java string will end up being those two characters *not* the
interpreted value "\n".
There's been some discussion about it before and how we need to make some
change but it hasn't been a top priority. For now what is done, is something
like is done here[1]. Where the default value is escaped and then in the
OnScheduled[2] or as a separate method[3] it is interpreted.
[1]
https://github.com/apache/nifi/blob/1373bf672586ba5ddcfa697c45c832ccc79425cb/nifi-commons/nifi-processor-utilities/src/main/java/org/apache/nifi/processor/util/listen/AbstractListenEventBatchingProcessor.java#L61-L61
[2]
https://github.com/apache/nifi/blob/1373bf672586ba5ddcfa697c45c832ccc79425cb/nifi-commons/nifi-processor-utilities/src/main/java/org/apache/nifi/processor/util/listen/AbstractListenEventBatchingProcessor.java#L97-L97
[3]
https://github.com/apache/nifi/blob/cd846c8d627efb2606f72b6af009358dec27be63/nifi-commons/nifi-processor-utilities/src/main/java/org/apache/nifi/processor/util/put/AbstractPutEventProcessor.java#L566-L566
> Create a processor to validate CSV against a user-supplied schema
> -----------------------------------------------------------------
>
> Key: NIFI-1942
> URL: https://issues.apache.org/jira/browse/NIFI-1942
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Extensions
> Reporter: Pierre Villard
> Assignee: Pierre Villard
> Priority: Minor
> Attachments: ValidateCSV.xml
>
>
> In order to extend the set of "quality control" processors, it would be
> interesting to have a processor validating CSV formatted flow files against a
> user-specified schema.
> Flow file validated against schema would be routed to "valid" relationship
> although flow file not validated against schema would be routed to "invalid"
> relationship.
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