Apache Tika and AWS Cloudsearch

I have a Apache Tika program which extracts metadata(json) and text given a word file as input.

I want to upload the extracted metadata and the text to Amazon cloudsearch & make it searchable.

I have created a cloudsearch domain and in the indexing options I have used the predefined configuration option (Microsoft office files)

Let me know how to insert the metadata and text + filename into Amazon cloudsearch using the AWS java cloudsearch v2 APIs.

Thanks