Context data
This is an additional stream of contextual data that is sent along side the main event stream. It provides a means for the sending system to send additional data that relates only to the event stream it is sent alongside.
This can be useful where the sending system has no control over the data in the event stream and the event stream does not contain contextual information such as what machine it is running on or the location of that machine.
The contextual information (such as hostname, FQDN, physical location, etc.) can be sent in a Context Stream so that the two can be combined together during pipeline processing using stroom:lookup().
See Also
- Context Data
- Stream Concepts
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stroom:lookup()stroom:lookup()Click to see more details…Looks up a key in reference or context data and return the matching string or XML. A map path separated by
/performs chained lookups. Numeric keys can also match key ranges in the reference data.If the look up fails no result will be returned.
Last modified October 20, 2026: Merge pull request #144 from gchq/add-7.14-rel-notes (2c6fb22)