inference.java

final KStream<String, String> inputEvents = builder.stream(inputTopic);

inputEvents.foreach((key, value) -> {

// Transform input values (list of Strings) to expected DL4J parameters (two Integer values):
String[] valuesAsArray = value.split(",");
INDArray input = Nd4j.create(Integer.parseInt(valuesAsArray[0]), Integer.parseInt(valuesAsArray[1]));

// Model inference in real time:
output = model.output(input);
prediction = output.toString();

});