org.openuat.channel.oob
Class FlashDisplayToButtonChannel

java.lang.Object
  org.openuat.channel.oob.ButtonChannel
      org.openuat.channel.oob.FlashDisplayToButtonChannel

All Implemented Interfaces:

OOBChannel, ButtonInputHandler

public class FlashDisplayToButtonChannel
extends ButtonChannel

This channel is a transfer channel. It transmits data between devices with the help of a visual signal, which is displayed for a short time on screen.
The signal is usually very simple, for example a black square, and will be displayed for 500 ms.
The smallest considered time unit for this channel is set to 1000 ms.

Version:

1.0

Author:

Lukas Huser

Field Summary

Fields inherited from class org.openuat.channel.oob.ButtonChannel

BITS_PER_INTERVAL, captureDisplayText, doRoundDown, impl, inputMode, logger, MESSAGE_LENGTH, messageHandler, minTimeUnit, minTimeUnit2, MODE_PRESS, MODE_PRESS_RELEASE, shortDescription, showFeedback, statisticsLogger, TOTAL_SIGNAL_COUNT, transmitDisplayText, useCarry

Fields inherited from interface org.openuat.authentication.OOBChannel

AUDIO_CHANNEL, BUTTON_CHANNEL, VIDEO_CHANNEL

Constructor Summary

FlashDisplayToButtonChannel(ButtonChannelImpl impl)
Creates a new instance of this channel.

FlashDisplayToButtonChannel(ButtonChannelImpl impl, boolean usePrepareSignal)
Creates a new instance of this channel.

Method Summary

void	transmit(byte[] message) Transmits provided data over this channel.

Methods inherited from class org.openuat.channel.oob.ButtonChannel

buttonPressed, buttonReleased, bytesToIntervals, capture, intervalsToBytes, setOOBMessageHandler, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

FlashDisplayToButtonChannel

public FlashDisplayToButtonChannel(ButtonChannelImpl impl)

Creates a new instance of this channel.
This constructor is equivalent to FlashDisplayToButtonChannel(impl, true).

Parameters:

impl - A suitable ButtonChannelImpl instance to handle platform dependent method calls.

FlashDisplayToButtonChannel

public FlashDisplayToButtonChannel(ButtonChannelImpl impl,
                                   boolean usePrepareSignal)

Creates a new instance of this channel.

Parameters:

impl - A suitable ButtonChannelImpl instance to handle platform dependent method calls.

usePrepareSignal - Should a preparatory signal be sent before a real signal is emitted?

Method Detail

transmit

public void transmit(byte[] message)

Transmits provided data over this channel.
Note: this method does not block the caller and returns immediately.

Parameters:

message - The Data to be sent over this channel.