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Java > Open Source Codes > org > w3c > css > sac > helpers > ParserFactory


1 /*
2  * Copyright (c) 1999 World Wide Web Consortium,
3  * (Massachusetts Institute of Technology, Institut National de
4  * Recherche en Informatique et en Automatique, Keio University). All
5  * Rights Reserved. This program is distributed under the W3C's Software
6  * Intellectual Property License. This program is distributed in the
7  * hope that it will be useful, but WITHOUT ANY WARRANTY; without even
8  * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
9  * PURPOSE.
10  * See W3C License http://www.w3.org/Consortium/Legal/ for more details.
11  *
12  * $Id: ParserFactory.java,v 1.2 2005/04/28 20:57:20 waldbaer Exp $
13  */

14 package org.w3c.css.sac.helpers;
15
16 import org.w3c.css.sac.Parser;
17
18 /**
19  * @version $Revision: 1.2 $
20  * @author Philippe Le Hegaret
21  */

22 public class ParserFactory {
23     
24     /**
25      * Create a parser with given selectors factory and conditions factory.
26      */

27     public Parser makeParser()
28     throws ClassNotFoundException JavaDoc,
29            IllegalAccessException JavaDoc,
30            InstantiationException JavaDoc,
31            NullPointerException JavaDoc,
32            ClassCastException JavaDoc {
33         String JavaDoc className = System.getProperty("org.w3c.css.sac.parser");
34         if (className == null) {
35             throw new NullPointerException JavaDoc("No value for sac.parser property");
36         }
37         return (Parser)(Class.forName(className).newInstance());
38     }
39 }
40
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