org.lightningj.paywall.qrcode

Interface QRCodeGenerator

All Known Implementing Classes:

DefaultQRCodeGenerator

public interface QRCodeGenerator

Interface for generating QR Code of text data used in payment flows. Created by Philip Vendil on 2018-12-18.

Method Summary

Modifier and Type	Method and Description
byte[]	generatePNG(java.lang.String data, int width, int height) Method to generate a PNG image QR code of the given text with the dimensions specified.

Method Detail

generatePNG

byte[] generatePNG(java.lang.String data,
                   int width,
                   int height)
            throws InternalErrorException

Method to generate a PNG image QR code of the given text with the dimensions specified.

Parameters:

data - the text data to encode into a QR Code

width - the width of the image.

height - the height of the image.

Returns:

the image data in PNG format. null if text data was null.

Throws:

InternalErrorException - if internal problem occurred generating the image.