Does es-hadoop have a mechanism to feed the response of a custom REST action as input to a MR job?

I am trying to understand if it's possible to run some MR job on the
response of a custom REST action.

For example, let's say I have a custom REST action that returns a term
vector of a certain field in the indexed documents. The terms are the
result of a custom analyzer on a field, say, an entity extractor using the
elasticsearch-opennlp-plugin. I want this as an input to my Map job. Is
this possible right now? If not, what are the workarounds?

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