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https://issues.apache.org/jira/browse/METRON-1341?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16282552#comment-16282552
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ASF GitHub Bot commented on METRON-1341:
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Github user simonellistonball commented on the issue:
https://github.com/apache/metron/pull/861
It suddenly occurs to me that we should probably whitelist the
original_string and timestamp fields, so that these are always kept by this
transformation. Does that make sense?
> Projection FieldTransformation
> ------------------------------
>
> Key: METRON-1341
> URL: https://issues.apache.org/jira/browse/METRON-1341
> Project: Metron
> Issue Type: Improvement
> Affects Versions: 0.4.2
> Reporter: Simon Elliston Ball
> Assignee: Simon Elliston Ball
> Labels: newbie
>
> It would be useful to have a projection transformation for Parsers which
> could use configured to limit the fields output from the parser.
> The configuration would look like this:
> {code:java}
> {
> "fieldTransformations": [
> {
> "transformation": "STELLAR",
> "config": [
> "ipSrc = TRIM(raw_ip_src)"
> "ip_src_addr := ipSrc"
> ]
> },
> {
> "transformation": "SELECT",
> "output" : [ "ip_src_addr", "ip_dst_addr", "message"]
> }
> ]
> }
> {code}
> This would lead to only the fields in the output definition of the SELECT
> transformation being put into the outbound message.
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