com.mucommander.io.base64
Class Base64Decoder

java.lang.Object
  com.mucommander.io.base64.Base64Decoder

public abstract class Base64Decoder
extends java.lang.Object

Base64Decoder provides methods to ease the decoding of strings and byte arrays in base64. The Base64InputStream class is used under the hood to perform the actual base64 decoding.

Author:

Maxence Bernard

See Also:

Base64InputStream

Constructor Summary

Base64Decoder()

Method Summary

static java.lang.String	decode(java.lang.String s) Shorthand for decode(String, String) invoked with UTF-8 encoding.
static java.lang.String	decode(java.lang.String s, java.lang.String encoding) Decodes the given Base64-encoded string and returns the result as a String.
static byte[]	decodeAsBytes(java.lang.String s) Decodes the given Base64-encoded string and returns the result as a byte array.

Methods inherited from class java.lang.Object

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

Constructor Detail

Base64Decoder

public Base64Decoder()

Method Detail

decodeAsBytes

public static byte[] decodeAsBytes(java.lang.String s)
                            throws java.io.IOException

Decodes the given Base64-encoded string and returns the result as a byte array. Throws an IOException if the String isn't properly Base64-encoded.

Parameters:

s - a Base64-encoded String

Returns:

the decoded string as a byte array

Throws:

java.io.IOException - if the given String isn't properly Base64-encoded

decode

public static java.lang.String decode(java.lang.String s,
                                      java.lang.String encoding)
                               throws java.io.UnsupportedEncodingException,
                                      java.io.IOException

Decodes the given Base64-encoded string and returns the result as a String. The specified encoding is used for transforming the decoded bytes into a String. Throws an IOException if the String isn't properly Base64-encoded, or if the encoding is not supported by the Java runtime.

Parameters:

s - a Base64-encoded String

encoding - the character encoding to use for transforming the decoded bytes into a String

Returns:

the decoded String

Throws:

java.io.UnsupportedEncodingException - if the specified encoding is not supported by the Java runtime

java.io.IOException - if the given String isn't properly Base64-encoded

decode

public static java.lang.String decode(java.lang.String s)
                               throws java.io.IOException

Shorthand for decode(String, String) invoked with UTF-8 encoding.

Parameters:

s - a Base64-encoded String

Returns:

the decoded String

Throws:

java.io.IOException - if the given String isn't properly Base64-encoded