import  java.io.*;
import java.util.*;

public class mv extends VMachine
{
    public mv()
    {
    }
    
    public void run()
    {
        
        try
        {
            String currentFile = "";
            String newFile = "";
            File fileObject, newName;
            
            StringTokenizer tokens = new StringTokenizer(args[0]);
            boolean flagged = false;
            
            if(args.length < 2)
            {
                sysapi.Write(OUT,"Error -- Not enough parameters\n");
                flagged = true;
            }
            else if(args.length > 2)
            {
                sysapi.Write(OUT,"Error - Too many parameters\n");
            }
            else
            {
                currentFile = args[0];
                newFile = args[1];
            }
            
            
            fileObject = new File(sysapi.findUser(owner).getcurrentPath() + currentFile);
            newName = new File(sysapi.findUser(owner).getcurrentPath() + newFile);
            
            if(newName.isDirectory())
            {
                newName = new File(sysapi.findUser(owner).getcurrentPath() + newFile + "/" + currentFile);
            }
            
            if(fileObject.exists())
            {
                fileObject.renameTo(newName);
            }
            else
            {
                sysapi.Write(OUT, "Error -- File or directory does not exist.\n");
            }
            
            
            sysapi.Exit(vmh,owner);
            
        }
        catch (Exception err)
        {
            System.out.println("mv threw an Exception.\n");
        }
        
    }
    
}