Paul Rogers created DRILL-7683:
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Summary: Add "message parsing" to new JSON loader
Key: DRILL-7683
URL: https://issues.apache.org/jira/browse/DRILL-7683
Project: Apache Drill
Issue Type: Improvement
Affects Versions: 1.18.0
Reporter: Paul Rogers
Assignee: Paul Rogers
Fix For: 1.18.0
Worked on a project that uses the new JSON loader to parse a REST response that
includes a set of "wrapper" fields around the JSON payload. Example:
{code:json}
{ "status": "ok", "results: [ data here ]}
{code}
To solve this cleanly, added the ability to specify a "message parser" to
consume JSON tokens up to the start of the data. This parser can be written as
needed for each different data source.
Since this change adds one more parameter to the JSON structure parser, added
builders to gather the needed parameters rather than making the constructor
even larger.
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