import EDU.neu.ccs.demeter.dj.*; 

//   Written by Sunita Kanchinadam.
// This class is the base class for the FileSystem.

import java.util.*;

public abstract class Node {

// constructor
  Node() { }

// constructor
  Node (String name)
  {
     _nName = name;  
     _nSize = 10;
  }

/*********************************************************/
// method 	: getSize
// parameters 	: none
// return value : integer
// Description 	: returns the size allocated to the node.
/*********************************************************/
  public int getSize() 
  { 
    return (_nSize); 
  }

/*********************************************************/
// method 	: setSize
// parameters 	: integer
// return value : void
// Description 	: sets the size allocated to the node.
/*********************************************************/
 public  void  setSize(int size) 
 {
    _nSize = size; 
 }

/*********************************************************/
// method 	: getName
// parameters 	: none
// return value : String 
// Description 	: returns the name of the node.
/*********************************************************/
 public String getName() 
 { 
    return _nName; 
 }

/*********************************************************/
// method 	: setName
// parameters 	: String
// return value : void
// Description 	: sets the name of the node.
/*********************************************************/
 public void setName(String name) 
 { 
    _nName = name; 
 }

/*********************************************************/
// method 	: Accept
// parameters 	: DuVisitor
// return value : void
// Description 	: calls the relevant GetTotalSize() for Node.
//		  This is introduced to implement Composite
//		  pattern.
/*********************************************************/
//
// Not needed with DJ
// abstract void Accept(DuVisitor du);

/*********************************************************/
// method 	: GetTotalSize
// parameters 	: String
// return value : int
// Description 	: returns the size of the node.
/*********************************************************/
// now implemented in this class
abstract int GetTotalSize(String option);

// The following methods have been implemented for future reference.
//  String getGroup()
//  void setGroup(String grp)
//  String getAccessedDate()
//  void setAccessedDate(String date)

// private members for File type, Owner of the file, group of the owner,
// accessed date and name of the node.
private char    _fType;
private String _nOwner;
private String _nGroup;
public int     _nSize;
private String _accessedDate;
private String _nName;


// added by Karl Lieberherr
/*
public int GetTotalSize(String option)
   {
     System.out.println("1");
     Strategy sg = new Strategy(
       "from {Node, Directory, File, Link} to {File,Link}"); 
     System.out.println("2");
     TraversalGraph tg = TraversalGraph.compute(OS.cg, sg);
     System.out.println("3");
     System.out.println(tg);
     System.out.println("3");
     DuVisitor v = new DuVisitor(option);
     System.out.println("4");
     tg.traverse(this, v);
     System.out.println("5");

     return (v.getSize());
   }
*/
}