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

["Ryan McKinley (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-7376?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ryan McKinley updated SOLR-7376:
--------------------------------
    Attachment: SOLR-7376-raw-json-xml-in-response.patch

Here is a patch with tests -- this adds two default document transformers:
{code}
+    defaultFactories.put( "json", new RawValueTransformerFactory("json") );
+    defaultFactories.put( "xml", new RawValueTransformerFactory("xml") );
{code}

The values are only unescaped when using the appropriate response writer.

So if you have:
 &fl=id,name,json_s:[json],xml_s:[xml]&wt=json
the xml_s value would be escaped, but json_s would be a raw value.



> Allow DocTransformers to write directly to the response (support raw json/xml fields)
> -------------------------------------------------------------------------------------
>
>                 Key: SOLR-7376
>                 URL: https://issues.apache.org/jira/browse/SOLR-7376
>             Project: Solr
>          Issue Type: New Feature
>            Reporter: Ryan McKinley
>            Assignee: Ryan McKinley
>         Attachments: SOLR-7376-raw-json-xml-in-response.patch
>
>
> 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.



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