package Util;

import java.io.*;

public class CopyFile {

    public static PrintStream openOutputFile(String filename){
	PrintStream  out; 		
	try {  // try to open output file as well...
	    out = new PrintStream(new FileOutputStream(filename));
	} 
	catch (FileNotFoundException e) {
	    System.err.println("**Error: unable to open output file '" + filename + "'.");
	    out = null;
	}//try-catch
	catch (SecurityException e) {
	    System.err.println("**Error: no permission to write output file '" + filename + "'.");
	    out = null;
	}//try-catch
	catch (IOException e) {
	    System.err.println("**Error: unknown error opening output file '" + filename + "'.");
	    out = null;
	}//try-catch
	
	return out;
    }
    
    public static boolean copyFile(String source , String target){
	
	InFile infile = null;
	PrintStream out = openOutputFile(target);
	try{
	    infile = new InFile(source);
	}catch(FileNotFoundException e){
	    System.err.println("**Error: unable to open file " + source); 
	    return false;
	}
	
	while(true){
	    String str = null;
	   
	    try{
		str = infile.readLine();
		if(str!=null)
		    out.println(str);
	    }catch(Exception re){
	    }
	    if(str == null)
		break;
	}	      	
	
	out.close();
	return true;
    }
}