| gvSIG desktop 1

/*

 *  $Id: LocaleDatabase.java,v 1.1 2006/06/14 07:29:07 cesar Exp $

 *  IzPack

 *  Copyright (C) 2001-2004 Julien Ponge

 *

 *  File :               LocaleDatabase.java

 *  Description :        Represents a langpack database.

 *  Author's email :     julien@izforge.com

 *  Author's Website :   http://www.izforge.com

 *

 *  This program is free software; you can redistribute it and/or

 *  modify it under the terms of the GNU General Public License

 *  as published by the Free Software Foundation; either version 2

 *  of the License, or any later version.

 *

 *  This program 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 General Public License for more details.

 *

 *  You should have received a copy of the GNU General Public License

 *  along with this program; if not, write to the Free Software

 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

 */

package com.izforge.izpack;

import java.io.InputStream;

import java.util.TreeMap;

import java.util.Vector;

import net.n3.nanoxml.NonValidator;

import net.n3.nanoxml.StdXMLBuilder;

import net.n3.nanoxml.StdXMLParser;

import net.n3.nanoxml.StdXMLReader;

import net.n3.nanoxml.XMLElement;

/**

 *  Represents a database of a locale.

 *

 * @author     Julien Ponge

 */

public class LocaleDatabase extends TreeMap

{

  /**

   *  The constructor.

   *

   * @param  in             An InputStream to read the translation from.

   * @exception  Exception  Description of the Exception

   */

  public LocaleDatabase(InputStream in) throws Exception

  {

    // We call the superclass default constructor

    super();

    // Initialises the parser

    StdXMLParser parser = new StdXMLParser();

    parser.setBuilder(new StdXMLBuilder());

    parser.setReader(new StdXMLReader(in));

    parser.setValidator(new NonValidator());

    // We get the data

    XMLElement data = (XMLElement) parser.parse();

    // We check the data

    if (!data.getName().equalsIgnoreCase("langpack"))

      throw new Exception("this is not an IzPack XML langpack file");

    // We fill the Hashtable

    Vector children = data.getChildren();

    int size = children.size();

    for (int i = 0; i < size; i++)

    {

      XMLElement e = (XMLElement) children.get(i);

      String text = e.getContent();

      if (text != null && !text.equals("")){

                put(e.getAttribute("id"), text.trim());

      }else{

                put(e.getAttribute("id"), e.getAttribute("txt"));

      }      

    }

  }

  /**

   *  Convenience method to retrieve an element.

   *

   * @param  key  The key of the element to retrieve.

   * @return      The element value or the key if not found.

   */

  public String getString(String key)

  {

    String val = (String)get(key);

    if (val == null) val = key;

    return val;

  }

}