import java.io.*;

public class Converter {
    String filename;
    boolean consoleOut = false;

    public Converter(String filename, boolean consoleOut) {
	this.filename = filename;
	this.consoleOut = consoleOut;
    }

    public void convert() {
	    try {
		System.out.println(System.getProperty("user.dir"));
		File ifile = new File(filename);
		InputStreamReader isr = new InputStreamReader(new FileInputStream(ifile.getPath()), "GB2312");
		BufferedReader in = new BufferedReader(isr);

		BufferedWriter out = null;

		if (!consoleOut) {
		    File ofile = new File(filename + ".utf8");
		    OutputStream fout = new FileOutputStream(ofile);
		    OutputStream bout = new BufferedOutputStream(fout);
		    OutputStreamWriter osw = new OutputStreamWriter(bout,"UTF-8");
		    out = new BufferedWriter(osw);
		}

		String str;
		while ((str = in.readLine()) != null) {
		    if (consoleOut) {
			System.out.println(str);
		    }
		    else {
			str += "\n";
			out.write(str, 0, str.length());
		    }
		}

		if (out != null) out.close();
		if (in != null) in.close();
	    } catch (IOException e) {
		System.out.println("Conversion Failed!");
		e.printStackTrace();
		System.exit(1);
	    }
    }
    
    public static void main(String [] args) {
	boolean consoleOut = false;
	if (args.length < 1) {
	    System.err.println("Need a file name\n");
	    System.exit(1);
	}

	if (args.length == 2 && "-".equals(args[1])) {
	    consoleOut = true;
	}

	Converter c = new Converter(args[0], consoleOut);
	c.convert();
    }
}