I am new to elasticsearch. I am exploring the possibility of extracting the entity from the content and index that in elasticsearch. I tried install and map the openNLP plugin in elasticsearch but ran into issues like no handler class found etc. I tried to build the openNLP plugin using maven but couldn't able to achieve the end objective.
Is there is other plugins available for named entity extraction in elasticsearch? Any other way to perform NER and indexing into ES if the not using the plugin.