Huffman-EncodingDecoding/HuffManDisplay.java at master · malevolentstrix/Huffman-EncodingDecoding · GitHub

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import java.util.Map;
import java.io.FileWriter;
import java.io.IOException;

public class HuffManDisplay {
	public static Huffman huffmanAccessor;
	public static gDescriptionWriter descriptionVariable;
	public static Coding Coding;
	public static String dot;
	public static String orginalString;
	static String encodedString;
	static String DecodedString;
	static String[][] DataArray;
	static double sizeForGivenString;
	static double sizeAfterCoding = 0;
	static double sizeOfTable = 0;
	static double sumOfCodeSize = 0;
	static double reductionPercentage;
	static int lengthOfTable = 0;

	public HuffManDisplay(String givenString, String dotfilename) {
		dot = dotfilename;
		orginalString = givenString;
		huffmanAccessor = new Huffman(givenString, dotfilename);
		descriptionVariable = new gDescriptionWriter(givenString, dotfilename, huffmanAccessor);
		Coding = new Coding(givenString, huffmanAccessor.rCodeToCharacter(), huffmanAccessor.rCharacterToCode());
	}

	public void WriteToDictionary() {
		FileWriter fw;
		try {
			fw = new FileWriter("HuffmanCodesAssigned.txt");
			fw.write("Letter, " + "Code: " + "\n");

			for (Map.Entry<Character, String> entry : huffmanAccessor.characterToCode.entrySet()) {
				String key = entry.getKey().toString();
				String val = entry.getValue();
				if (key.equals("\n"))
					key = "\\n";
				fw.write(key + ": " + val + "\n");
			}
			fw.close();
		} catch (IOException e1) {
			e1.printStackTrace();
		}
	}

	public static void DisplayHuffman() {
		DataArray = null;
		DataArray = new String[orginalString.length()][3];

		encodedString = Coding.encode();

		DecodedString = Coding.decode(encodedString);
		descriptionVariable.generateDescriptionFile(dot);

		int i = 0;
		for (Map.Entry<Character, Integer> entry : huffmanAccessor.characterToFrequency.entrySet()) {
			String key = entry.getKey().toString();
			int val = entry.getValue();
			if (key.equals("\n"))
				key = "\\n";
			DataArray[i][0] = key;
			DataArray[i][1] = Integer.toString(val);
			i++;
		}

		int j = 0;

		for (Map.Entry<Character, String> entry : huffmanAccessor.characterToCode.entrySet()) {
			String key = entry.getKey().toString();
			String val = entry.getValue();
			if (key.equals("\n"))
				key = "\\n";
			DataArray[j][2] = val;
			j++;
		}

		sizeForGivenString = 0;
		sizeAfterCoding = 0;
		sizeOfTable = 0;
		sumOfCodeSize = 0;
		reductionPercentage = 0;
		lengthOfTable = 0;
		sizeForGivenString = orginalString.length() * 8;

		sizeAfterCoding = encodedString.length();
		sizeOfTable = (DataArray[1].length);
		for (int z = 0; z < DataArray.length; z++) {

			if (DataArray[z][0] == null) {
				break;
			} else {
				sumOfCodeSize = sumOfCodeSize + DataArray[z][2].length();
				lengthOfTable++;
			}
		}
		sizeAfterCoding = sizeAfterCoding + sumOfCodeSize + (lengthOfTable*8);
		reductionPercentage = -1 * ((sizeAfterCoding - sizeForGivenString) / sizeForGivenString) * 100;
	}

}