PinpadDeviceBridge.java

public DeviceInteractionResponse requestAction(
String monto, String tipoMoneda, String codigoCaja, String codigoTienda,
StringBuilder pinPadToPrintBuffer, StringBuilder pinPadToCajaBuffer) {
StringBuilder responseBuffer = new StringBuilder();
StringBuilder opParameters = new StringBuilder();
opParameters.append("90");
opParameters.append("A" + monto);//000000000500
opParameters.append(FIELD_SEPARATOR_STRING);
opParameters.append("B000000000000");//propina
opParameters.append(FIELD_SEPARATOR_STRING);
opParameters.append("C0");//0
opParameters.append(FIELD_SEPARATOR_STRING);
opParameters.append("D00000001");//00000001
opParameters.append(FIELD_SEPARATOR_STRING);
opParameters.append("E0000001");//0000001
int fiStartOperation = deviceDllBridge.fiStartOperation(opParameters.toString(), 5, responseBuffer);