[teiid-issues] [JBoss JIRA] Commented: (TEIID-1634) For file connector-based queries, please provide a DEBUG warning if no files are found

[Steven Hawkins (JIRA)]

    [ https://issues.jboss.org/browse/TEIID-1634?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12607926#comment-12607926 ] 

Steven Hawkins commented on TEIID-1634:
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I was already resolving before seeing Van's comment.

The existing functionality is a little bit of a jack of all trades:

You can specify a directory and get all files under it.  Is it an error if the directory is empty?
You can specify a directory and an extension to filter on.  Is it an error if no files match the extension?
If the path appears to be a directory/file that doesn't exist, is that an error?

For consistency, the answer in all cases is currently no.  Changing any of those situations to an error could be done, but keep in mind it will be a breaking change.

As for a warning, that would not be needed if we're throwing an error as that would generate generate a warning log.  Otherwise it isn't appropriate to log a warning, but not throw an error. 




> For file connector-based queries, please provide a DEBUG warning if no files are found
> --------------------------------------------------------------------------------------
>
>                 Key: TEIID-1634
>                 URL: https://issues.jboss.org/browse/TEIID-1634
>             Project: Teiid
>          Issue Type: Bug
>          Components: Query Engine
>            Reporter: Paul Nittel
>            Assignee: Steven Hawkins
>             Fix For: 7.4.1
>
>
> I am writing a query against an XML file. I have a file connector referenced by a dynamic VDB. As luck would have it, I used an incorrect directory when the data source was defined. When the query is executed, it appears as though I have no results. (I actually have no data!) After fiddling with the XML for a while, I realized the error, corrected it, and went merrily on my way.
> Had there been some kind of notification that there were no files to process, I could have saved a half-hour. So, if a DEBUG message were put in the log file, it may help someone else (or me again) down the road.

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