tijos.framework.util.base64

Class Base64

java.lang.Object

tijos.framework.util.base64.Base64

public final class Base64
extends Object

Base64 encoding and decoding. The implementation of this class supports the following types of Base64 as specified in RFC 4648 and RFC 2045.

Method Summary

Modifier and Type	Method and Description
static byte[]	decode(String b64) Decode a Base-64 string into a byte array.
static String	encode(byte[] buf) Base64 encode a byte array, with no line wrapping.
static String	encode(byte[] buf, int tw) Base64 encode a byte array, returning the returning string.
static String	encode(byte[] buf, int offset, int length, int tw) Base64 encode a byte array, returning the returning string.

Methods inherited from class java.lang.Object

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

Method Detail

decode

public static byte[] decode(String b64)
                     throws IOException

Decode a Base-64 string into a byte array.

Parameters:

b64 - The Base-64 encoded string.

Returns:

The decoded bytes.

Throws:

IOException - If the argument is not a valid Base-64 encoding.

encode

public static String encode(byte[] buf)

Base64 encode a byte array, with no line wrapping.

Parameters:

buf - The byte array to encode.

Returns:

buf encoded in Base64.

encode

public static String encode(byte[] buf,
                            int tw)

Base64 encode a byte array, returning the returning string.

Parameters:

buf - The byte array to encode.

tw - The total length of any line, 0 for unlimited.

Returns:

buf encoded in Base64.

encode

public static String encode(byte[] buf,
                            int offset,
                            int length,
                            int tw)

Base64 encode a byte array, returning the returning string.

Parameters:

buf - The byte array to encode.

offset - The offset in the byte array to start.

length - The number of bytes to encode.

tw - The total length of any line, 0 for unlimited.

Returns:

buf encoded in Base64.