org.productivity.java.habitat4j.junit.examples.decryptor
Class SampleCaesarEncryptorDecryptor

java.lang.Object
  org.productivity.java.habitat4j.junit.examples.decryptor.SampleCaesarEncryptorDecryptor

All Implemented Interfaces:

DecryptorIF

public class SampleCaesarEncryptorDecryptor
extends java.lang.Object
implements DecryptorIF

This sample encryptor/decryptor class implements a simple Caesar cipher, where the letters of the alphabet are mapped 1 character over. For instance, to "encrypt," a becomes b, b becomes c, ..., and z becomes a. In order to "decrypt," z becomes y, y becomes x, ..., and a becomes z.

## LICENSE INFORMATION ##

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

Version:

$Id: SampleCaesarEncryptorDecryptor.html,v 1.2 2008/11/24 15:15:20 cvs Exp $

Author:

Justin Yunke <habitat4j@productivity.org>

Constructor Summary

SampleCaesarEncryptorDecryptor()

Method Summary

java.lang.String	decrypt(java.lang.String propertyListName, java.lang.String name, java.lang.String value)
static java.lang.String	doCaesar(java.lang.String value, boolean encrypt)
void	initialize(java.lang.String appName, java.lang.String propertyListName)

Methods inherited from class java.lang.Object

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

Constructor Detail

SampleCaesarEncryptorDecryptor

public SampleCaesarEncryptorDecryptor()

Method Detail

initialize

public void initialize(java.lang.String appName,
                       java.lang.String propertyListName)

Specified by:

initialize in interface DecryptorIF

Parameters:

appName - - the name of the calling application (use is optional)

propertyListName - - the name of the PropertyList that's calling this method (use is optional)

decrypt

public java.lang.String decrypt(java.lang.String propertyListName,
                                java.lang.String name,
                                java.lang.String value)

Specified by:

decrypt in interface DecryptorIF

Parameters:

propertyListName - - the name of the PropertyList that's calling this method (use is optional)

name - - the Property name (use is optional)

value - - the String value to decrypt

Returns:

Returns a decrypted String from parameter "value"

doCaesar

public static java.lang.String doCaesar(java.lang.String value,
                                        boolean encrypt)

Parameters:

value - - the data to encrypt/decrypt

encrypt - - whether to encrypt (true) or decrypt (false)

Returns:

Returns the result of a Caesar cipher.