Any Solrj API to obtain field list?

[T. Kuro Kurosaka]

I'd like to write Solr client code that writes text to language specific 
field, say, myfield_es, for Spanish,
if the field myfield_es is defined in schema.xml, and otherwise to a 
fall-back field myfield. To do this,
I need to obtain a list of defined fields (and dynamic fields) from the 
server. But I cannot find
a suitable Solrj API. Is there any? I'm using Solr 4.6.1. I could write 
code to use Schema REST API
(https://wiki.apache.org/solr/SchemaRESTAPI) but I would much prefer to use
the existing code if one exists.
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T. "Kuro" Kurosaka • Senior Software Engineer