org.cryptacular.codec

Class Base64Decoder

java.lang.Object

org.cryptacular.codec.AbstractBaseNDecoder

org.cryptacular.codec.Base64Decoder

All Implemented Interfaces:

Decoder

public class Base64Decoder
extends AbstractBaseNDecoder

Stateful base 64 decoder with support for line breaks.

Author:

Middleware Services

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Base64Decoder.Builder Builder for base-64 decoders.

Constructor Summary

Constructors

Constructor and Description
Base64Decoder() Creates a new instance that decodes base 64-encoded input in the default character set.
Base64Decoder(boolean urlSafe) Creates a new instance that decodes base 64-encoded input in the optional URL-safe character set.
Base64Decoder(String alphabet) Creates a new instance that decodes base-64 character data encoded in the given alphabet.

Method Summary

Modifier and Type	Method and Description
protected int	getBitsPerChar()
protected int	getBlockLength()

Methods inherited from class org.cryptacular.codec.AbstractBaseNDecoder

decode, decodingTable, finalize, isPaddedInput, outputSize, setPaddedInput

Methods inherited from class java.lang.Object

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

Constructor Detail

Base64Decoder

public Base64Decoder()

Creates a new instance that decodes base 64-encoded input in the default character set.

Base64Decoder

public Base64Decoder(boolean urlSafe)

Creates a new instance that decodes base 64-encoded input in the optional URL-safe character set.

Parameters:

urlSafe - True to use URL and filesystem-safe character set, false otherwise.

Base64Decoder

public Base64Decoder(String alphabet)

Creates a new instance that decodes base-64 character data encoded in the given alphabet.

Parameters:

alphabet - Base-64 alphabet to use for decoding

Method Detail

getBlockLength

protected int getBlockLength()

Specified by:

getBlockLength in class AbstractBaseNDecoder

Returns:

Number of bits in a block of encoded characters.

getBitsPerChar

protected int getBitsPerChar()

Specified by:

getBitsPerChar in class AbstractBaseNDecoder

Returns:

Number of bits encoding a single character.