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https://issues.apache.org/jira/browse/APEXMALHAR-2447?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16009985#comment-16009985
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ASF GitHub Bot commented on APEXMALHAR-2447:
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Github user prasannapramod closed the pull request at:
https://github.com/apache/apex-malhar/pull/583
> No indication from AbstractFileInputOperator when directory is empty
> --------------------------------------------------------------------
>
> Key: APEXMALHAR-2447
> URL: https://issues.apache.org/jira/browse/APEXMALHAR-2447
> Project: Apache Apex Malhar
> Issue Type: Improvement
> Reporter: Velineni Lakshmi Prasanna
> Assignee: Velineni Lakshmi Prasanna
> Priority: Minor
>
> AbstractFileInputOperator scans a directory for files and outputs the file
> contents. However, when the directory is empty nothing is sent. A downstream
> operator may want some basic information that the input directory is scanned,
> so for example, it can create an output folder. Add a notification to the
> operator when the directory is scanned for the first time. An implementation,
> for example, can use this notification to send a control tuple with the
> directory path notifying the downstream that the directory has been visited.
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