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https://issues.apache.org/jira/browse/DRILL-7817?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17246375#comment-17246375
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ASF GitHub Bot commented on DRILL-7817:
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nielsbasjes commented on pull request #2122:
URL: https://github.com/apache/drill/pull/2122#issuecomment-741637555
Casts:
The `Casts` are the possible types the logparser has for returning the found
elements. So if it says `LONG` as one of the options you can specify a setter
that receives a `Long`. This is a property that differs per field, yet the old
implementation in Drill used a single value for all fields. When this value is
STRING it will all work, but when I sorted the fields this changed and it all
fell apart.
Remapping:
The logparser constructs a tree of dissectors based upon types like
`STRING`, `TIME.EPOCH`, `IP` and `HTTP.USERAGENT`.
A specific Dissector is capable of parsing a certain input type into one of
more pieces which will have different types than the input.
Now in my example the `request.firstline.uri.query.ua` is a `STRING` for
which no Dissector exists.
In the logparser you can remap this to a different type like
`HTTP.USERAGENT`. If you specify this the UserAgentDissector will automatically
be attached and dissect this further into the parts it can produce.
What I see in the Drill code is that there is an option to add a '#'
(REMAPPING_FLAG) and then specify a new type and this is then used to call the
remapping code of the logparser. Yet I have not found any tests or
documentation that show how this must be used.
I have an idea on how to make this possible.
Config option:
Yes, understood. I'll fix it.
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> Add direct Yauaa support for HTTPD Format Plugin.
> -------------------------------------------------
>
> Key: DRILL-7817
> URL: https://issues.apache.org/jira/browse/DRILL-7817
> Project: Apache Drill
> Issue Type: New Feature
> Reporter: Niels Basjes
> Assignee: Niels Basjes
> Priority: Minor
>
> Enhancement of having the Yauaa useragent parser immediately integrated with
> the HTTPD logparser.
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