org.lightningj.paywall.qrcode

Class DefaultQRCodeGenerator

java.lang.Object

org.lightningj.paywall.qrcode.DefaultQRCodeGenerator

All Implemented Interfaces:

QRCodeGenerator

public class DefaultQRCodeGenerator
extends java.lang.Object
implements QRCodeGenerator

Default implementation of QRCode generation using the zxing library to generate images. Created by Philip Vendil on 2018-12-18.

Constructor Summary

Constructors

Constructor and Description
DefaultQRCodeGenerator()

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.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DefaultQRCodeGenerator

public DefaultQRCodeGenerator()

Method Detail

generatePNG

public 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.

Specified by:

generatePNG in interface QRCodeGenerator

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.