Index Templates API - Set Source

[nhuray]

This issue refers to this discussion

Context :

There's no way with the Java client API to create a template and set the source like that :

PutIndexTemplateResponse response = client.admin().indices()
   .preparePutTemplate("twitter_template").
   .setSource(sourceTemplate)
   .execute()
   .actionGet();

instead to set settings, mappings ... like that :

PutIndexTemplateResponse response = client.admin().indices()
   .preparePutTemplate("twitter_template")
   .setTemplate("twitter*")
   .addMapping("tweet", sourceMapping)
   .setSettings(sourceSettings)
   .execute()
   .actionGet();

Solution :

We have to move the parsing logic from RestPutIndexTemplateAction.handleRequest() method to the PutIndexTemplateRequest.setSource() method