Input Transformer

Description

An Input Transformer transforms raw data (text/binary) into a Metacard. Once converted to a Metacard, the data can be used in a variety of ways such as in an UpdateRequest, CreateResponse, or within Catalog Endpoints or Sources. For instance, an Input Transformer could be used to receive and translate XML into a Metacard so that it can be placed within a CreateRequest in order to be ingested within the Catalog. Input Transformers should be registered within the Service Registry with the following interface ddf.catalog.transform.InputTransformer in order to notify some Catalog components of any new transformers.

Examples

DDF includes the following Input Transformers:

• Tika Input Transformer — transforms a Microsoft Office, PDF, and OpenOffice documents into a Catalog Metacard
• GeoJSON Input Transformer — transforms GeoJSON into a Catalog Metacard

Additional Information

• See Working with Transformers and Developing an Input Transformer in the Developing Catalog Components section