//: SortedDirList.java
//////////////////////////////////////////////////
// Copyright (c) Bruce Eckel, 1998
// Source code file from the book "Thinking in Java"
// All rights reserved EXCEPT as allowed by the
// following statements: You can freely use this file
// for your own work (personal or commercial),
// including modifications and distribution in
// executable form only. Permission is granted to use
// this file in classroom situations, including its
// use in presentation materials, as long as the book
// "Thinking in Java" is cited as the source. 
// Except in classroom situations, you cannot copy
// and distribute this code; instead, the sole
// distribution point is http://www.BruceEckel.com 
// (and official mirror sites) where it is
// freely available. You cannot remove this
// copyright and notice. You cannot distribute
// modified versions of the source code in this
// package. You cannot use this file in printed
// media without the express permission of the
// author. Bruce Eckel makes no representation about
// the suitability of this software for any purpose.
// It is provided "as is" without express or implied
// warranty of any kind, including any implied
// warranty of merchantability, fitness for a
// particular purpose or non-infringement. The entire
// risk as to the quality and performance of the
// software is with you. Bruce Eckel and the
// publisher shall not be liable for any damages
// suffered by you or any third party as a result of
// using or distributing software. In no event will
// Bruce Eckel or the publisher be liable for any
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// indirect, special, consequential, incidental, or
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// and the publisher have been advised of the
// possibility of such damages. Should the software
// prove defective, you assume the cost of all
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// address for non-code errors found in the book.)
/////////////////////////////////////////////////

// Displays sorted directory listing
import java.io.*;
import c08.*;

public class SortedDirList {
  private File path;
  private String[] list;
  public SortedDirList(final String afn) {
    path = new File(".");
    if(afn == null)
      list = path.list();
    else
      list = path.list(
          new FilenameFilter() {
            public boolean 
            accept(File dir, String n) {
              String f = new File(n).getName();
              return f.indexOf(afn) != -1;
            }
          });
    sort();
  }
  void print() {
    for(int i = 0; i < list.length; i++)
      System.out.println(list[i]);
  }
  private void sort() {
    StrSortVector sv = new StrSortVector();
    for(int i = 0; i < list.length; i++)
      sv.addElement(list[i]);
    // The first time an element is pulled from
    // the StrSortVector the list is sorted:
    for(int i = 0; i < list.length; i++)
      list[i] = sv.elementAt(i);
  }
  // Test it:
  public static void main(String[] args) {
    SortedDirList sd;
    if(args.length == 0)
      sd = new SortedDirList(null);
    else
      sd = new SortedDirList(args[0]);
    sd.print();
  }
} ///:~