I'm writing ingest plugin for elasticsearch. It is going to calculate a diff, between the document being inserted and the latest one in the ES, and save diff as a new field.
So far so good, yet I did not find a way to access the data, not perform any requests.
Plugin signature looks as follow:
MyPlugin extends Plugin implements IngestPlugin
Am I missing something obvious, is there any way to achieve that?
I am aware of Client, SearchService classes but I did not find a way to get to them (@Inject annotation on Plugin only allows Settings instance to be passed).