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https://issues.apache.org/jira/browse/APEXMALHAR-2447?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15928391#comment-15928391
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ASF GitHub Bot commented on APEXMALHAR-2447:
--------------------------------------------
GitHub user prasannapramod opened a pull request:
https://github.com/apache/apex-malhar/pull/583
APEXMALHAR-2447 Notification from AbstractFileInputOperator when scanning
directory
APEXMALHAR-2447 Added notification in AbstractFileInputOperator, when
scanning the directory for the first time. Implementations can use this
information in different ways such as notifying downstream operators with a
control tuple that a new directory has been scanned.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/prasannapramod/apex-malhar SPOI-9540
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/apex-malhar/pull/583.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 #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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