com.webmethods.rtl.encode

Class Base64

java.lang.Object

com.webmethods.rtl.encode.Base64

public class Base64
extends Object

Provides Base64 encoding and decoding as defined by RFC 2045.

This class implements section 6.8. Base64 Content-Transfer-Encoding from RFC 2045 Multipurpose Internet Mail Extensions (MIME) Part One: Format of Internet Message Bodies by Freed and Borenstein.

Since:

1.0-dev

See Also:

RFC 2045

Constructor Summary

Constructors

Constructor and Description
Base64()

Method Summary

Methods

Modifier and Type	Method and Description
static byte[]	decode(byte[] base64Data) Decodes Base64 data into octects
static byte[]	encode(byte[] pArray) Encodes a byte[] containing binary data, into a byte[] containing characters in the Base64 alphabet.
static String	encode(String data) Returns the base64 encoding of String.
static String	encode(String data, String charEncoding) Returns the base64 encoding of String (by first converting to byte[], using the specified charEncoding).
static byte[]	encodeBase64(byte[] binaryData) Encodes binary data using the base64 algorithm but does not chunk the output.
static boolean	isBase64(byte octect)
static boolean	isBase64(byte[] arrayOctect) Tests a given byte array to see if it contains only valid characters within the Base64 alphabet.
static boolean	isBase64(String isValidString)

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

isBase64

public static boolean isBase64(byte octect)

isBase64

public static boolean isBase64(byte[] arrayOctect)

Tests a given byte array to see if it contains only valid characters within the Base64 alphabet.

Parameters:

arrayOctect - byte array to test

Returns:

true if all bytes are valid characters in the Base64 alphabet or if the byte array is empty; false, otherwise

isBase64

public static boolean isBase64(String isValidString)

encodeBase64

public static byte[] encodeBase64(byte[] binaryData)

Encodes binary data using the base64 algorithm but does not chunk the output.

Parameters:

binaryData - binary data to encode

Returns:

Base64 characters

decode

public static byte[] decode(byte[] base64Data)

Decodes Base64 data into octects

Parameters:

base64Data - Byte array containing Base64 data

Returns:

Array containing decoded data.

encode

public static byte[] encode(byte[] pArray)

Encodes a byte[] containing binary data, into a byte[] containing characters in the Base64 alphabet.

Parameters:

pArray - a byte array containing binary data

Returns:

A byte array containing only Base64 character data

encode

public static String encode(String data,
            String charEncoding)
                     throws UnsupportedEncodingException

Returns the base64 encoding of String (by first converting to byte[], using the specified charEncoding). The return value is also a String. The Default codeEncoding is ISO-8859-1.

Parameters:

data - String of data to convert

charEncoding - the character encoding to use when converting a String to a byte[]

Returns:

Base64-encoded String

Throws:

UnsupportedEncodingException

encode

public static String encode(String data)

Returns the base64 encoding of String. First the String is converted to byte[], using the character encoding of ISO-8859-1.

Parameters:

data - String of data to convert

Returns:

Base64-encoded String