es.gob.afirma.utils

Class Base64Coder

java.lang.Object

es.gob.afirma.utils.Base64Coder

public final class Base64Coder
extends java.lang.Object

Utility class for coding and decoding binary data on Base 64 format.

Project:

Library for the integration with the services of @Firma, eVisor and TS@.

Version:

1.0, 18/03/2011.

Method Summary

Modifier and Type	Method and Description
static byte[]	decodeBase64(byte[] data) Method that decodes data encoded on Base64.
static byte[]	decodeBase64(byte[] data, int offset, int len) Method that decodes data encoded on Base64.
static java.lang.String	decodeBase64(java.lang.String data) Method that decodes a string encoded on Base64.
static byte[]	encodeBase64(byte[] data) Method that encodes data on Base64.
static byte[]	encodeBase64(byte[] data, int offset, int len) Method that encodes data on Base64.
static java.lang.String	encodeBase64(java.lang.String data) Method that encodes a string on Base64.
static boolean	isBase64Encoded(byte[] data) Method that checks if data is encoded on Base64.

Methods inherited from class java.lang.Object

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

Method Detail

encodeBase64

public static byte[] encodeBase64(byte[] data)
                           throws TransformersException

Method that encodes data on Base64.

Parameters:

data - Parameter that represents the data to encode.

Returns:

the data encoded on Base64.

Throws:

TransformersException - If the method fails.

encodeBase64

public static byte[] encodeBase64(byte[] data,
                                  int offset,
                                  int len)
                           throws TransformersException

Method that encodes data on Base64.

Parameters:

data - Parameter that represents the data to encode.

offset - Parameter that represents the initial position where to start the encoding.

len - Parameter that represents the final position where to finish the encoding.

Returns:

the data encoded on Base64.

Throws:

TransformersException - If the method fails.

decodeBase64

public static byte[] decodeBase64(byte[] data)
                           throws TransformersException

Method that decodes data encoded on Base64.

Parameters:

data - Parameter that represents the data to decode.

Returns:

the decoded data.

Throws:

TransformersException - If the method fails.

decodeBase64

public static byte[] decodeBase64(byte[] data,
                                  int offset,
                                  int len)
                           throws TransformersException

Method that decodes data encoded on Base64.

Parameters:

data - Parameter that represents the data to decode.

offset - Parameter that represents the initial position where to start the decoding.

len - Parameter that represents the final position where to finish the encoding.

Returns:

the decoded data.

Throws:

TransformersException - If the method fails.

isBase64Encoded

public static boolean isBase64Encoded(byte[] data)

Method that checks if data is encoded on Base64.

Parameters:

data - Parameter that represents the data to check.

Returns:

a boolean that defines if the data is encoded on Base64 (true) or not (false).

encodeBase64

public static java.lang.String encodeBase64(java.lang.String data)
                                     throws TransformersException

Method that encodes a string on Base64.

Parameters:

data - Parameter that represents the string to encode.

Returns:

the string encoded on Base64.

Throws:

TransformersException - If the method fails.

decodeBase64

public static java.lang.String decodeBase64(java.lang.String data)
                                     throws TransformersException

Method that decodes a string encoded on Base64.

Parameters:

data - Parameter that represents the string to decode.

Returns:

the decoded string.

Throws:

TransformersException - If the method fails.