// -*- c++ -*-

/*
 * Jakelib2 - General purpose C++ library
 * Copyright (C) 2001 Florian Wolff  (florian@donuz.de)
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * $Id: FilenameExtensionFilter.jlc,v 1.3 2003/09/27 08:10:28 florian Exp $
 */


#include "jakelib2.h"
#include "jakelib2/io/FilenameExtensionFilter.h"
#include "jakelib2/io/File.h"
#include "jakelib2/lang/System.h"
#include "jakelib2/util/StringTokenizer.h"
#include "jakelib2/util/ArrayList.h"

using namespace jakelib::lang;
using namespace jakelib::util;
using namespace jakelib::io;

JAKELIB_IMPLEMENT_CLASS_1("jakelib.io.FilenameExtensionFilter", FilenameExtensionFilter,
                          Object,
                          FilenameFilter);


/*****************************************************************************\
 * FilenameExtensionFilter                                                    |
 *****************************************************************************/
FilenameExtensionFilter::FilenameExtensionFilter(String *extension)
{
  this->extensions = new Strings(1);

  if (extension->startsWith(`"."`))
    this->extensions->set(0, extension);
  else
    this->extensions->set(0, `"."` .. extension);
}

FilenameExtensionFilter::FilenameExtensionFilter(StringTokenizer *extensions)
{
  int idx = 0;

  this->extensions = new Strings(extensions->countTokens());

  while (extensions->hasMoreTokens()) {
    String *extension = extensions->nextToken();

    if (extension->startsWith(`"."`))
      this->extensions->set(idx++, extension);
    else
      this->extensions->set(idx++, `"."` .. extension);
  }
}


/*****************************************************************************\
 * accept                                                                     |
 *****************************************************************************/
jboolean FilenameExtensionFilter::accept(File *dir, jakelib::lang::String *name)
{
  for (int idx = 0; idx < extensions->length(); idx++) {
    if (name->endsWith((String*)extensions->get(idx)))
      return true;
  }

  return false;
}


/*****************************************************************************\
 * toString                                                                   |
 *****************************************************************************/
String *FilenameExtensionFilter::toString()
{
  StringBuffer sb(getClass()->getName());

  sb.append(`": "`);

  for (int idx = 0; idx < extensions->length(); idx++) {
    sb.append('*')->append((String*) extensions->get(idx));
    if (idx < extensions->length() -1)
      sb.append(`"; "`);
  }

  return sb.toString();
}