ADFGVX.java created online with Bitbucket

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//CipherStreamJava/src/main/java/com/mattrixwv/CipherStreamJava/combination/ADFGVX.java
//Mattrixwv
// Created: 01-26-22
//Modified: 01-26-22
package com.mattrixwv.CipherStreamJava.combination;
import java.util.StringJoiner;
import com.mattrixwv.CipherStreamJava.exceptions.InvalidCharacterException;
import com.mattrixwv.CipherStreamJava.exceptions.InvalidInputException;
import com.mattrixwv.CipherStreamJava.exceptions.InvalidKeywordException;
import com.mattrixwv.CipherStreamJava.polySubstitution.Columnar;
import com.mattrixwv.CipherStreamJava.polySubstitution.PolybiusSquare;
public class ADFGVX{
private class LargePolybiusSquare extends PolybiusSquare{
@Override
protected void createGrid(){
for(int row = 0;row < 6;++row){
for(int col = 0;col < 6;++col){
char letter = keyword.charAt((6 * row) + col);
grid[row][col] = letter;
}
}
}
@Override
protected void setInputStringEncoding(String inputString) throws InvalidCharacterException, InvalidInputException{
if(inputString == null){
throw new NullPointerException("Input cannot be null");
}
//Change to upper case
inputString = inputString.toUpperCase();
//Remove any whitespace if selected
if(!preserveWhitespace){
inputString = inputString.replaceAll("\\s+", "");
}
//Remove any symbols if selected
if(!preserveSymbols){
inputString = inputString.replaceAll("[^a-zA-Z0-9\\s]", "");
}
if(!preserveWhitespace && !preserveSymbols){
//Add whitespace after every character for the default look
StringJoiner spacedString = new StringJoiner(" ");
for(int cnt = 0;cnt < inputString.length();++cnt){
spacedString.add(Character.toString(inputString.charAt(cnt)));
}
inputString = spacedString.toString();
}
//Save the string
this.inputString = inputString;
if(this.inputString.isBlank() || getPreparedInputStringEncoding().isBlank()){
throw new InvalidInputException("Input must contain at least 1 letter");
}
}
@Override
protected String getPreparedInputStringEncoding(){
String cleanString = inputString.toUpperCase();
cleanString = cleanString.replaceAll("[^A-Z0-9]", "");
return cleanString;
}
@Override
protected void setKeyword(String keyword){
if(keyword == null){
throw new NullPointerException("Keyword cannot be null");
}
//Change everything to uppercase
keyword = keyword.toUpperCase();
//Remove everything except capital letters and numbers
keyword = keyword.replaceAll("[^A-Z0-9]", "");
//Add all letters in the alphabet to the key
keyword += "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
//Remove all duplicate characters
StringBuilder uniqueKey = new StringBuilder();
keyword.chars().distinct().forEach(c -> uniqueKey.append((char)c));
this.keyword = uniqueKey.toString();
//Create the grid from the sanitized keyword
createGrid();
}
@Override
protected void addCharactersToCleanStringEncode(String cleanString){
int outputCnt = 0;
StringBuilder fullOutput = new StringBuilder();
for(int inputCnt = 0;inputCnt < inputString.length();++inputCnt){
//Add both numbers of any letters to the output
if(Character.isAlphabetic(inputString.charAt(inputCnt)) || Character.isDigit(inputString.charAt(inputCnt))){
fullOutput.append(cleanString.charAt(outputCnt++));
fullOutput.append(cleanString.charAt(outputCnt++));
}
//Add any other characters that appear to the output
else{
fullOutput.append(inputString.charAt(inputCnt));
}
}
outputString = fullOutput.toString();
}
@Override
protected void addCharactersToCleanStringDecode(String cleanString){
int outputCnt = 0;
StringBuilder fullOutput = new StringBuilder();
for(int inputCnt = 0;inputCnt < inputString.length();++inputCnt){
//Add the letter to the output and skip the second number
if(Character.isDigit(inputString.charAt(inputCnt)) || Character.isAlphabetic(inputString.charAt(inputCnt))){
fullOutput.append(cleanString.charAt(outputCnt++));
++inputCnt;
}
//Add any other characters that appear to the output
else{
fullOutput.append(inputString.charAt(inputCnt));
}
}
outputString = fullOutput.toString();
}
@Override
public void reset(){
grid = new char[6][6];
inputString = "";
outputString = "";
keyword = "";
}
public LargePolybiusSquare(boolean preserveWhitespace, boolean preserveSymbols) throws InvalidCharacterException{
super(preserveWhitespace, preserveSymbols);
}
}
private boolean preserveCapitals;
private boolean preserveWhitespace;
private boolean preserveSymbols;
private String inputString;
private String outputString;
private String squareKeyword;
private String keyword;
private LargePolybiusSquare largePolybiusSquare;
private Columnar columnar;
private void setSquareKeyword(String squareKeyword) throws InvalidKeywordException{
if(squareKeyword == null){
throw new InvalidKeywordException("Square Keyword cannot be null");
}
this.squareKeyword = squareKeyword;
}
private void setKeyword(String keyword) throws InvalidKeywordException{
if(keyword == null){
throw new InvalidKeywordException("Keyword cannot be null");
}
this.keyword = keyword;
}
private void setInputString(String inputString) throws InvalidInputException{
if(inputString == null){
throw new InvalidInputException("Input cannot be null");
}
if(!preserveCapitals){
inputString = inputString.toUpperCase();
}
if(!preserveWhitespace){
inputString = inputString.replaceAll("\\s+", "");
}
if(!preserveSymbols){
inputString = inputString.replaceAll("[^a-zA-Z\\s]", "");
}
this.inputString = inputString;
if(this.inputString.isBlank()){
throw new InvalidInputException("Input cannot be blank");
}
}
private void formatOutputStringEncode(){
StringBuilder output = new StringBuilder();
int outputLocation = 0;
for(char ch : inputString.toCharArray()){
if(Character.isUpperCase(ch)){
output.append(Character.toUpperCase(outputString.charAt(outputLocation++)));
output.append(Character.toUpperCase(outputString.charAt(outputLocation++)));
}
else if(Character.isLowerCase(ch)){
output.append(Character.toLowerCase(outputString.charAt(outputLocation++)));
output.append(Character.toLowerCase(outputString.charAt(outputLocation++)));
}
else{
output.append(ch);
}
}
outputString = output.toString();
}
private void formatOutputStringDecode(){
StringBuilder output = new StringBuilder();
int outputLocation = 0;
for(int inputLocation = 0;inputLocation < inputString.length();++inputLocation){
char ch = inputString.charAt(inputLocation);
if(Character.isUpperCase(ch)){
output.append(Character.toUpperCase(outputString.charAt(outputLocation++)));
++inputLocation;
}
else if(Character.isLowerCase(ch)){
output.append(Character.toLowerCase(outputString.charAt(outputLocation++)));
++inputLocation;
}
else{
output.append(ch);
}
}
outputString = output.toString();
}
private String encode() throws InvalidCharacterException, InvalidInputException, InvalidKeywordException{
//Encode the input with polybius
String polybiusOutput = largePolybiusSquare.encode(squareKeyword, inputString);
//Change polybius to use the correct symbols
polybiusOutput = polybiusOutput.replaceAll("1", "A").replaceAll("2", "D").replaceAll("3", "F").replaceAll("4", "G").replaceAll("5", "V").replaceAll("6", "X");
//Encode polybius's output with columnar
String columnarOutput = columnar.encode(keyword, polybiusOutput);
outputString = columnarOutput;
//Add whatever is needed to the output string
formatOutputStringEncode();
return outputString;
}
private String decode() throws InvalidKeywordException, InvalidCharacterException, InvalidInputException{
//Decode the input with columnar
String columnarOutput = columnar.decode(keyword, inputString);
//Change the symbols to the correct ones for polybius
columnarOutput = columnarOutput.replaceAll("A", "1").replaceAll("D", "2").replaceAll("F", "3").replaceAll("G", "4").replaceAll("V", "5").replaceAll("X", "6");
//Decode with polybius
String polybiusOutput = largePolybiusSquare.decode(squareKeyword, columnarOutput);
outputString = polybiusOutput;
//Add whatever is needed to the output string
formatOutputStringDecode();
return outputString;
}
public ADFGVX() throws InvalidCharacterException{
preserveCapitals = false;
preserveWhitespace = false;
preserveSymbols = false;
reset();
}
public ADFGVX(boolean preserveCapitals, boolean preserveWhitespace, boolean preserveSymbols) throws InvalidCharacterException{
this.preserveCapitals = preserveCapitals;
this.preserveWhitespace = preserveWhitespace;
this.preserveSymbols = preserveSymbols;
reset();
}
public String encode(String squareKeyword, String keyword, String inputString) throws InvalidKeywordException, InvalidInputException, InvalidCharacterException{
setSquareKeyword(squareKeyword);
setKeyword(keyword);
setInputString(inputString);
return encode();
}
public String decode(String squareKeyword, String keyword, String inputString) throws InvalidKeywordException, InvalidInputException, InvalidCharacterException{
setSquareKeyword(squareKeyword);
setKeyword(keyword);
setInputString(inputString);
return decode();
}
public String getInputString(){
return inputString;
}
public String getOutputString(){
return outputString;
}
public String getSquareKeyword(){
return squareKeyword;
}
public String getKeyword(){
return keyword;
}
public void reset() throws InvalidCharacterException{
largePolybiusSquare = new LargePolybiusSquare(false, false);
columnar = new Columnar(false, false, false, true, 'B');
inputString = "";
outputString = "";
squareKeyword = "";
keyword = "";
}
}