com.isti.util
Class URLRefDecoder

java.lang.Object
  extended by com.isti.util.URLRefDecoder

public class URLRefDecoder
extends java.lang.Object

Class URLRefDecoder is a modified version of 'URLDecoder' that has a single-string 'encode()' method that is not deprecated. The code was modified after being lifted from the "java.net.URLDecoder" class from Java 1.4.2_06. Utility class for HTML form decoding. This class contains static methods for decoding a String from the application/x-www-form-urlencoded MIME format.

To conversion process is the reverse of that used by the URLEncoder class. It is assumed that all characters in the encoded string are one of the following: "a" through "z", "A" through "Z", "0" through "9", and "-", "_", ".", and "*". The character "%" is allowed but is interpreted as the start of a special escaped sequence.

The following rules are applied in the conversion:

There are two possible ways in which this decoder could deal with illegal strings. It could either leave illegal characters alone or it could throw an IllegalArgumentException. Which approach the decoder takes is left to the implementation.

Since:
1.2

Method Summary
static java.lang.String decode(java.lang.String s)
          Decodes a x-www-form-urlencoded string.
static java.lang.String decode(java.lang.String s, java.lang.String enc)
          Decodes a application/x-www-form-urlencoded string using a specific encoding scheme.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Method Detail

decode

public static java.lang.String decode(java.lang.String s)
Decodes a x-www-form-urlencoded string. "UTF-8" encoding is used to determine what characters are represented by any consecutive sequences of the form "%xy".

Parameters:
s - the String to decode
Returns:
the newly decoded String

decode

public static java.lang.String decode(java.lang.String s,
                                      java.lang.String enc)
                               throws java.io.UnsupportedEncodingException
Decodes a application/x-www-form-urlencoded string using a specific encoding scheme. The supplied encoding is used to determine what characters are represented by any consecutive sequences of the form "%xy".

Note: The World Wide Web Consortium Recommendation states that UTF-8 should be used. Not doing so may introduce incompatibilites.

Parameters:
s - the String to decode
enc - The name of a supported character encoding.
Returns:
the newly decoded String.
Throws:
java.io.UnsupportedEncodingException - If the named encoding is not supported.