[SOLR-7376] Allow DocTransformers to write directly to the response (support raw json/xml fields)

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 5.2, 6.0
• Assignee: Ryan McKinley
• Reporter: Ryan McKinley
• Created: 10/Apr/15 19:34
• Updated: 09/May/16 18:57
• Resolved: 15/Apr/15 15:46

Description

In order to return raw json when wt=json (and raw xml when wt=xml), it would be great if we could output directly to the response.

I propose we can put a new `WriteableValue` in the response using DocumentTransformer – when a TextResponseWriter finds this type, it will let the `WriteableValue` figure out what to do.

Issue Links

• is related to: SOLR-7993 json stopped working on 5.3.0
• is related to: SOLR-7650 Allow wildcard on fl for Raw JSON/XML
• relates to: SOLR-4685 JSON response write modification to support RAW JSON