org.posper.tpv.util

Class Base64

java.lang.Object

org.posper.tpv.util.Base64

public class Base64
extends Object

Constructor Summary

Constructors

Constructor and Description
Base64()

Method Summary

Modifier and Type	Method and Description
static byte[]	decode(BufferedReader reader) Base64 decode the lines from the reader and return an InputStream with the bytes.
static byte[]	decode(String base64) Decode a Base64-Basic encoded string to a byte array This is a wrapper preserving the previous interface.
static byte[]	decodeBasic(String base64) Decode a Base64-Basic encoded string to a byte array
protected static byte[]	decodeHelper(String base64, boolean isUrlSafe) Decode a Base64-Basic or UrlSafe encoded string to a byte array
static byte[]	decodeUrl(String base64) Decode a Base64-UrlSafe encoded string to a byte array
static String	encode(byte[] raw) Encode a byte array and fold lines at the standard 76th character.
static String	encode(byte[] raw, int wrap) Encode a byte array in Base64-Basic format and return an optionally wrapped line This is a wrapper preserving the previous interface.
static String	encodeBasic(byte[] raw) Encode a byte array in Base64-Basic format and return an optionally wrapped line
protected static char[]	encodeBlock(byte[] raw, int offset, boolean isUrlSafe)
protected static char[]	encodeFullBlock(byte[] raw, int offset, boolean isUrlSafe)
protected static String	encodeHelper(byte[] raw, int wrap, boolean isUrlSafe) Encode a byte array in Base64-Basic or UrlSafe format and return an optionally wrapped line
static String	encodeUrl(byte[] raw) Encode a byte array in Base64-UrlSafe format and return an optionally wrapped line
protected static char	getChar(int sixBit, boolean isUrlSafe)
protected static int	getValue(char c, boolean isUrlSafe)

Methods inherited from class java.lang.Object

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

Constructor Detail

Base64

public Base64()

Method Detail

decodeBasic

public static byte[] decodeBasic(String base64)

Decode a Base64-Basic encoded string to a byte array

Parameters:

base64 - String encoded string (single line only !!)

Returns:

Decoded data in a byte array

decodeUrl

public static byte[] decodeUrl(String base64)

Decode a Base64-UrlSafe encoded string to a byte array

Parameters:

base64 - String encoded string (single line only !!)

Returns:

Decoded data in a byte array

decode

public static byte[] decode(String base64)

Decode a Base64-Basic encoded string to a byte array

This is a wrapper preserving the previous interface.

Parameters:

base64 - String encoded string (single line only !!)

Returns:

Decoded data in a byte array

decodeHelper

protected static byte[] decodeHelper(String base64,
                                     boolean isUrlSafe)

Decode a Base64-Basic or UrlSafe encoded string to a byte array

Parameters:

base64 - String encoded string (single line only !!)

isUrlSafe -

Returns:

Decoded data in a byte array

encodeBasic

public static String encodeBasic(byte[] raw)

Encode a byte array in Base64-Basic format and return an optionally wrapped line

Parameters:

raw - byte[] data to be encod4.

Returns:

a String with encoded data

encodeUrl

public static String encodeUrl(byte[] raw)

Encode a byte array in Base64-UrlSafe format and return an optionally wrapped line

Parameters:

raw - byte[] data to be encoded

Returns:

a String with encoded data

encode

public static String encode(byte[] raw,
                            int wrap)

Encode a byte array in Base64-Basic format and return an optionally wrapped line

This is a wrapper preserving the previous interface.

Parameters:

raw - byte[] data to be encoded

wrap - int length of wrapped lines; No wrapping if less than 4.

Returns:

a String with encoded data

encodeHelper

protected static String encodeHelper(byte[] raw,
                                     int wrap,
                                     boolean isUrlSafe)

Encode a byte array in Base64-Basic or UrlSafe format and return an optionally wrapped line

Parameters:

raw - byte[] data to be encoded

wrap - int length of wrapped lines; No wrapping if less than 4.

isUrlSafe -

Returns:

a String with encoded data

encode

public static String encode(byte[] raw)

Encode a byte array and fold lines at the standard 76th character.

Parameters:

raw - byte[] to be base64 encoded

Returns:

the String with encoded data

decode

public static byte[] decode(BufferedReader reader)
                     throws IOException

Base64 decode the lines from the reader and return an InputStream with the bytes.

Parameters:

reader -

Returns:

InputStream with the decoded bytes

Throws:

IOException

encodeBlock

protected static char[] encodeBlock(byte[] raw,
                                    int offset,
                                    boolean isUrlSafe)

encodeFullBlock

protected static char[] encodeFullBlock(byte[] raw,
                                        int offset,
                                        boolean isUrlSafe)

getChar

protected static char getChar(int sixBit,
                              boolean isUrlSafe)

getValue

protected static int getValue(char c,
                              boolean isUrlSafe)