/******************************************************************************
 * This program simply copies one file to another, character by
 * character like the Unix 'cat' program.
 * 
 * Copyright © 2020 Richard Lesh.  All rights reserved.
 *****************************************************************************/

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.nio.charset.Charset;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import org.pureprogrammer.Utils;

public class FileIO7 {

	static void copyTextFile(String fromFilespec, String toFilespec) throws IOException {
		BufferedReader ifh = Files.newBufferedReader(FileSystems.getDefault().getPath(fromFilespec), Charset.forName("UTF-8"));
		BufferedWriter ofh = Files.newBufferedWriter(FileSystems.getDefault().getPath(toFilespec), Charset.forName("UTF-8"));
		int c;
		while ((c = ifh.read()) != -1) {
			ofh.write(c);
		}
		try {ifh.close();} catch (IOException ex) {};
		try {ofh.close();} catch (IOException ex) {};
	}

	public static void main(String[] args) {
		if (args.length != 2) {
			System.out.println(Utils.join("", "Syntax: ", "FileIO7", " {fromFilespec} {toFilespec}"));
			System.exit(1);
		}
		String fromFilespec = args[0];
		String toFilespec = args[1];
		try {
			copyTextFile(fromFilespec, toFilespec);
		} catch (IOException ex) {
			System.out.println(Utils.join("", "Error: ", Utils.exceptionMessage(ex)));
		}
	}
}