Mapping openNLP or StanfordNLP in elasticsearch - elasticsearch

Question

I am trying to map openNLP to enable parsing of filed in a document. Using the following code:
"article":
"properties":
"content" : { "type" : "opennlp" }
Prior to create the mapping, I downloaded the named entity extraction binary file from sourceforge.net and installed/unpacked using cURL in elasticsearch plugin folders.
I get the following error message when I tried to run the above mapping code.
"error": "MapperParsingException[No handler for type [opennlp]
declared on field [content]]" "status": 400

Answer 1

After quick Googling I've found this: https://github.com/spinscale/elasticsearch-opennlp-plugin
I assume that you're trying to install it. However - it's outdated and probably not even supported by recent Elasticsearch versions.
The purpose of it seems to extract data from files and index them as tags. Elasticsearch Mapper Attachments Type plugin does exactly that. I would encourage you to use it instead of OnenNLP. Quick extract from documentation:
The mapper attachments plugin adds the attachment type to
Elasticsearch using Apache Tika. The attachment type allows to index
different "attachment" type field (encoded as base64), for example,
microsoft office formats, open document formats, ePub, HTML, and so on
(full list can be found here).
An example how to use map fields using it:
PUT /test/person/_mapping
{
"person" : {
"properties" : {
"my_attachment" : {
"type" : "attachment"
}
}
}
}