org.gpel.client.util.base64

Class Base64

java.lang.Object

org.gpel.client.util.base64.Base64

public class Base64
extends Object

This is utility class to handle BAS64 encoding and decoding in a streaming fashion. For details see RFC 2045.

NOTE: Decoding is forgiving: spaces etc. are ignored at the beginngin and the end of input and as well inside encoded data - there is also no limit on maximum size of one input line - all data may be just encoded in one line - good for SOAP base64 encoding.

Version:

$Revision: 1.3 $ $Date: 2006/12/07 04:55:30 $ (GMT)

Author:

Aleksander Slominski

Constructor Summary

Constructors

Constructor and Description
Base64()

Method Summary

Methods

Modifier and Type	Method and Description
static byte[]	decode(Base64DecodingState state, char[] data, int off, int len, boolean finalize) Do streaming decoding - state is used maintain decoding dtate if more than chunk is passed.
static byte[]	decode(char[] data) Utility function to decode all-at-once.
static byte[]	decode(char[] data, int off, int len) Utility function to decode all-at-once.
static char[]	encode(Base64EncodingState state, byte[] data, int off, int len, boolean finalize) Streaming encoder of a chunk.
static char[]	encode(byte[] data) Utility function to encode all-at-once.
static char[]	encode(byte[] data, int off, int len) Utility function to encode all-at-once.

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

decode

public static byte[] decode(Base64DecodingState state,
            char[] data,
            int off,
            int len,
            boolean finalize)
                     throws Base64DecodingException

Do streaming decoding - state is used maintain decoding dtate if more than chunk is passed. Last chunk must be marked by passing finalize set to true.

Throws:

Base64DecodingException

decode

public static byte[] decode(char[] data,
            int off,
            int len)
                     throws Base64DecodingException

Utility function to decode all-at-once.

Throws:

Base64DecodingException

decode

public static byte[] decode(char[] data)
                     throws Base64DecodingException

Utility function to decode all-at-once.

Throws:

Base64DecodingException

encode

public static char[] encode(Base64EncodingState state,
            byte[] data,
            int off,
            int len,
            boolean finalize)
                     throws Base64EncodingException

Streaming encoder of a chunk. The state of encoding can be maintained between calls and finalize flag set to true must be passed for the last decoded chunk.

Throws:

Base64EncodingException

encode

public static char[] encode(byte[] data,
            int off,
            int len)
                     throws Base64EncodingException

Utility function to encode all-at-once.

Throws:

Base64EncodingException

encode

public static char[] encode(byte[] data)
                     throws Base64EncodingException

Utility function to encode all-at-once.

Throws:

Base64EncodingException