Configuring.java

package com.statusParser;

import java.util.Scanner;
import java.util.Properties;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

/**
 * Created with IntelliJ IDEA.
 * User: sadvr
 * Date: 1/14/14
 * Time: 17:04 PM
 */
public class Configuring {
    private static int argsLength = 0;
    private static final Properties PROP = new Properties();
    private static final Scanner IN = new Scanner(System.in);

    public void start(String[] args) {
        argsLength = args.length;
        if (args[1].equals("mysql")) {
            load();
            mysql(args);
        } else {
            System.out.println("Unknown config parameter: " + unknownArgs(args, 1));
        }
    }

    public Properties load() {                                                                                          //load properties from file
        try {
            File file = new File("config.properties");
            file.createNewFile();
            PROP.load(new FileInputStream("config.properties"));
        } catch (IOException ex) {
            ex.printStackTrace();
        }
        return PROP;
    }

    private String unknownArgs(String[] args, int fromParameter) {
        String argsString = "";
        for (int i = fromParameter; i < argsLength; i++) {
            argsString = argsString + args[i] + " ";
        }
        return argsString;
    }

    private void mysql(String[] args) {
        if (argsLength == 2) {                                                                                         //setup MySQL connection parameters
            System.out.print("Конфигурация MySQL...\nserverName: ");
            String serverName = IN.nextLine();
            System.out.print("Port: ");
            String portNumber = IN.nextLine();
            System.out.print("Username: ");
            String userName = IN.nextLine();
            System.out.print("Password: ");
            String password = IN.nextLine();
            System.out.print("Database: ");
            String database = IN.nextLine();

            try {
                PROP.setProperty("serverName", serverName);
                PROP.setProperty("port", portNumber);
                PROP.setProperty("userName", userName);
                PROP.setProperty("password", password);
                PROP.setProperty("database", database);

                PROP.store(new FileOutputStream("config.properties"), null);
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        } else if (argsLength == 3) {
            if (args[2].equals("on")) {                                                                                 //set MySQL ON
                try {
                    PROP.setProperty("mysql", "on");
                    PROP.store(new FileOutputStream("config.properties"), null);
                } catch (IOException ex) {
                    ex.printStackTrace();
                }
            } else if (args[2].equals("off")) {                                                                         //set MySQL OFF
                try {
                    PROP.setProperty("mysql", "off");
                    PROP.store(new FileOutputStream("config.properties"), null);
                } catch (IOException ex) {
                    ex.printStackTrace();
                }
            } else {
                System.out.println("Unknown mysql parameter: " + unknownArgs(args, 2));
            }
        } else {
            System.out.println("Unknown mysql parameter: " + unknownArgs(args, 2));
        }
    }

}