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Java Source Code / Java Documentation » Library » Apache common codec » org.apache.commons.codec.net

Source Cross Reference

Class Diagram

Java Document (Java Doc)

java.lang .Object

org.apache.commons.codec.net .RFC1522Codec

All known Subclasses:   org.apache.commons.codec.net .QCodec,  org.apache.commons.codec.net .BCodec,
RFC1522Codec
abstract class RFC1522Codec (Code)

Implements methods common to all codecs defined in RFC 1522.

RFC 1522 describes techniques to allow the encoding of non-ASCII text in various portions of a RFC 822 [2] message header, in a manner which is unlikely to confuse existing message handling software.

See Also:    * MIME (Multipurpose Internet Mail Extensions) Part Two: * Message Header Extensions for Non-ASCII Text
See Also:

author:
   Apache Software Foundation
since:
   1.3
version:
   $Id: RFC1522Codec.java,v 1.2 2004/04/09 22:21:43 ggregory Exp $

Method Summary
protected String decodeText(String text)
     Applies an RFC 1522 compliant decoding scheme to the given string of text.
abstract protected byte[] doDecoding(byte[] bytes)

abstract protected byte[] doEncoding(byte[] bytes)

protected String encodeText(String text, String charset)
     Applies an RFC 1522 compliant encoding scheme to the given string of text with the given charset.
abstract protected String getEncoding()


Method Detail
decodeText
protected String decodeText(String text) throws DecoderException, UnsupportedEncodingException(Code)
Applies an RFC 1522 compliant decoding scheme to the given string of text. This method processes the "encoded-word" header common to all the RFC 1522 codecs and then invokes RFC1522Codec.doEncoding(byte[]) method of a concrete class to perform the specific deconding.
Parameters:
  text - a string to decode
throws:
  DecoderException - thrown if there is an error conidition during the Decoding process.
throws:
  UnsupportedEncodingException - thrown if charset specified in the "encoded-word" header is not supported

doDecoding
abstract protected byte[] doDecoding(byte[] bytes) throws DecoderException(Code)
Decodes an array of bytes using the defined encoding scheme
Parameters:
  bytes - Data to be decoded a byte array that contains decoded data
throws:
  DecoderException - A decoder exception is thrown if a Decoder encounters a failure condition during the decode process.

doEncoding
abstract protected byte[] doEncoding(byte[] bytes) throws EncoderException(Code)
Encodes an array of bytes using the defined encoding scheme
Parameters:
  bytes - Data to be encoded A byte array containing the encoded data
throws:
  EncoderException - thrown if the Encoder encounters a failure condition during the encoding process.

encodeText
protected String encodeText(String text, String charset) throws EncoderException, UnsupportedEncodingException(Code)
Applies an RFC 1522 compliant encoding scheme to the given string of text with the given charset. This method constructs the "encoded-word" header common to all the RFC 1522 codecs and then invokes RFC1522Codec.doEncoding(byte[]) method of a concrete class to perform the specific enconding.
Parameters:
  text - a string to encode
Parameters:
  charset - a charset to be used RFC 1522 compliant "encoded-word"
throws:
  EncoderException - thrown if there is an error conidition during the Encoding process.
throws:
  UnsupportedEncodingException - thrown if charset is not supported
See Also:    JRE character * encoding names

getEncoding
abstract protected String getEncoding()(Code)
Returns the codec name (referred to as encoding in the RFC 1522) name of the codec

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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