Fixed sonarqube findings

src/main/java/com/mattrixwv/cipherstream/monosubstitution/Atbash.java

@@ -0,0 +1,101 @@
+//CipherStreamJava/src/main/java/com/mattrixwv/CipherStreamJava/monoSubstitution/Atbash.java
+//Mattrixwv
+// Created: 07-25-21
+//Modified: 02-22-22
+package com.mattrixwv.cipherstream.monosubstitution;
+
+
+import com.mattrixwv.cipherstream.exceptions.InvalidInputException;
+
+
+public class Atbash{
+	private String inputString;		//Holds the string that needs encoded or decoded
+	private String outputString;	//The encoded/decoded string
+	private boolean preserveCapitals;	//Whether to respect capitals in the output string
+	private boolean preserveWhitespace;	//Whether to respect whitespace in the output string
+	private boolean preserveSymbols;	//Whether to respect symbols in the output string
+	//Encodes inputString and stores in outputString
+	private String encode(){
+		StringBuilder output = new StringBuilder();
+		//Step through every element in the inputString and shift it the correct amount
+		for(int cnt = 0;cnt < inputString.length();++cnt){
+			char currentChar = inputString.charAt(cnt);
+			//Decode if the letter is alphabetic
+			if(Character.isAlphabetic(currentChar)){
+				//Use either uppercase or lowercase for the base
+				//(letterbase + 25 - (currentChar - letterBase))
+				if(Character.isUpperCase(currentChar)){
+					output.append((char)(155 - currentChar));
+				}
+				else{
+					output.append((char)(219 - currentChar));
+				}
+			}
+			//Keep any punctuatio/whitespace the way it is
+			else{
+				output.append(currentChar);
+			}
+		}
+
+		outputString = output.toString();
+		return outputString;
+	}
+	//Removes all invalid characters and sets inputString
+	private void setInputString(String inputString) throws InvalidInputException{
+		if(inputString == null){
+			throw new NullPointerException("Input cannot be null");
+		}
+
+		if(!preserveCapitals){
+			//Convert all letters to lowercase
+			inputString = inputString.toUpperCase();
+		}
+		if(!preserveWhitespace){
+			//Remove all characters except capital letters
+			inputString = inputString.replaceAll("\\s", "");
+		}
+		if(!preserveSymbols){
+			//Remove all non-alpha numeric and whitespace symbols
+			inputString = inputString.replaceAll("[^a-zA-Z\\s]", "");
+		}
+
+		//Save the string
+		this.inputString = inputString;
+
+		if(this.inputString.isBlank()){
+			throw new InvalidInputException("Input must contain at least 1 character");
+		}
+	}
+
+
+	public Atbash(){
+		reset();
+		preserveCapitals = false;
+		preserveWhitespace = false;
+		preserveSymbols = false;
+	}
+	public Atbash(boolean preserveCapitals, boolean preserveWhitespace, boolean preserveSymbols){
+		reset();
+		this.preserveCapitals = preserveCapitals;
+		this.preserveWhitespace = preserveWhitespace;
+		this.preserveSymbols = preserveSymbols;
+	}
+	public String getInputString(){
+		return inputString;
+	}
+	public String getOutputString(){
+		return outputString;
+	}
+	public String encode(String inputString) throws InvalidInputException{
+		//Make sure everything is empty before you begin
+		reset();
+		setInputString(inputString);
+		return encode();
+	}
+	public String decode(String inputString) throws InvalidInputException{
+		return encode(inputString);
+	}
+	public void reset(){
+		inputString = outputString = "";
+	}
+}