Subversion Repositories present

package pl.com.kgajewski.serialcomm.datagen;

import java.io.BufferedWriter;

import java.io.File;

import java.io.FileWriter;

import java.io.IOException;

import org.apache.commons.lang3.StringUtils;

public class PresentDataGenerator {

        public static void main(String[] args) {

                String drive = "e:\\";

                String data = "a112ffc72f68417b";

                String key  = "00000000000000000000";

                String data2 = "3333dcd3213210d2";

                String key2  = "ffffffffffffffffffff";

                try {

                        System.out.println("key");

                        File f1 = new File(drive + "key.txt");

                        f1.createNewFile();

                        formatDataFromHex(key, f1);

                        System.out.println("data");

                        File f2 = new File(drive + "data.txt");

                        f1.createNewFile();

                        formatDataFromHex(data, f2);

                        System.out.println("key2");

                        File f3 = new File(drive + "key2.txt");

                        f3.createNewFile();

                        formatDataFromHex(key2, f3);

                        System.out.println("data2");

                        File f4 = new File(drive + "data2.txt");

                        f4.createNewFile();

                        formatDataFromHex(data2, f4);

                } catch (IOException e1) {

                        // TODO Auto-generated catch block

                        e1.printStackTrace();

                }

        }

        private static void formatDataFromHex(String str, File f) throws IOException {

                BufferedWriter bfw = new BufferedWriter(new FileWriter(f));

                for (int i = str.length(); i > 0; i -= 2) {

                        String substr = str.substring(i - 2, i);

                        parseByteStringHex(bfw, substr);

                }

                bfw.close();

        }

        private static void parseByteStringHex(BufferedWriter bfw, String str)

                        throws IOException {

                Integer i = Integer.valueOf(str, 16);

                String s = Integer.toString(i, 2);

                String tmp = "";

                for (int j = 8 - s.length(); j > 0; j--) {

                        tmp = tmp.concat("0");

                }

                parseByteString(bfw, tmp + s);

        }

        private static void parseByteString(BufferedWriter bfw, String str)

                        throws IOException {

                int ones = 0;

                bfw.write(str);

                bfw.write("\n");

                str = StringUtils.reverse(str);

                for (int j = 0; j < str.length(); j++) {

                        bfw.write(str.charAt(j));

                        bfw.write("\n");

                        if (str.charAt(j) == '1') {

                                ones++;

                        }

                }

                if (ones % 2 == 1) {

                        bfw.write("0");

                } else {

                        bfw.write("1");

                }

                bfw.write("\n");

        }

}