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Java > Open Source Codes > org > netbeans > modules > xml > dtd > grammar > DTDGrammarQueryProvider


1 /*
2  * The contents of this file are subject to the terms of the Common Development
3  * and Distribution License (the License). You may not use this file except in
4  * compliance with the License.
5  *
6  * You can obtain a copy of the License at http://www.netbeans.org/cddl.html
7  * or http://www.netbeans.org/cddl.txt.
8  *
9  * When distributing Covered Code, include this CDDL Header Notice in each file
10  * and include the License file at http://www.netbeans.org/cddl.txt.
11  * If applicable, add the following below the CDDL Header, with the fields
12  * enclosed by brackets [] replaced by your own identifying information:
13  * "Portions Copyrighted [year] [name of copyright owner]"
14  *
15  * The Original Software is NetBeans. The Initial Developer of the Original
16  * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
17  * Microsystems, Inc. All Rights Reserved.
18  */
19
20 package org.netbeans.modules.xml.dtd.grammar;
21
22 import java.beans.FeatureDescriptor JavaDoc;
23 import java.util.Enumeration JavaDoc;
24 import org.netbeans.modules.xml.api.model.*;
25 import org.w3c.dom.Node JavaDoc;
26 import org.xml.sax.InputSource JavaDoc;
27
28 /**
29  * Provide DTD grammar. It must be registered at layer.
30  *
31  * @author Petr Kuzel <petr.kuzel@sun.com>
32  */
33 public class DTDGrammarQueryProvider extends GrammarQueryManager {
34
35     public Enumeration JavaDoc enabled(GrammarEnvironment ctx) {
36         Enumeration JavaDoc en = ctx.getDocumentChildren();
37         while (en.hasMoreElements()) {
38             Node JavaDoc next = (Node JavaDoc) en.nextElement();
39             if (next.getNodeType() == next.DOCUMENT_TYPE_NODE) {
40                 return org.openide.util.Enumerations.singleton (next);
41             }
42         }
43         return null;
44     }
45     
46     public FeatureDescriptor JavaDoc getDescriptor() {
47         return new FeatureDescriptor JavaDoc();
48     }
49     
50     public GrammarQuery getGrammar(GrammarEnvironment env) {
51         return new DTDParser().parse(env.getInputSource());
52     }
53     
54 }
55
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