This tutorial demonstrates how to write a Java converter that you can add to the conversion pipeline (also known as the "converter pipeline") used by Watson Explorer Engine. This pipeline enables converting and normalizing data that has been retrieved from remote repositories by sequentially changing that data from one format to another. A conversion pipeline also provides a flexible framework for adding converters that augment input data and metadata during the conversion process. Common augmentation tasks include entity extraction, sentiment analysis, and so on.
The example Java converter used in this tutorial extracts text from the <body> element of HTML web pages. Watson Explorer Engine includes a sample Java converter template in the examples/java_converter_template directory of any installation of Watson Explorer Engine 9.0.0.3 or later.