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Java > Open Source Codes > org > netbeans > modules > ant > grammar > AntGrammarQueryProvider


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.ant.grammar;
21
22 import java.beans.FeatureDescriptor JavaDoc;
23 import java.util.Enumeration JavaDoc;
24 import org.netbeans.modules.xml.api.model.GrammarEnvironment;
25 import org.netbeans.modules.xml.api.model.GrammarQuery;
26 import org.netbeans.modules.xml.api.model.GrammarQueryManager;
27 import org.openide.util.Enumerations;
28 import org.w3c.dom.Node JavaDoc;
29 import org.w3c.dom.Element JavaDoc;
30
31 /**
32  * Provides the Ant grammar for any documents whose root elements matches a standard pattern.
33  * See also ant/src/.../resources/mime-resolver.xml.
34  * @author Petr Kuzel, Jesse Glick
35  */

36 public final class AntGrammarQueryProvider extends GrammarQueryManager {
37     
38     public Enumeration JavaDoc enabled(GrammarEnvironment ctx) {
39         Enumeration JavaDoc en = ctx.getDocumentChildren();
40         while (en.hasMoreElements()) {
41             Node JavaDoc next = (Node JavaDoc) en.nextElement();
42             if (next.getNodeType() == next.ELEMENT_NODE) {
43                 Element JavaDoc root = (Element JavaDoc) next;
44                 // XXX should also check for any root <project> in NS "antlib:org.apache.tools.ant"
45
// (but no NS support in HintContext impl anyway: #38340)
46
if ("project".equals(root.getNodeName()) && (root.getAttributeNode("default") != null || root.getAttributeNode("basedir") != null)) { // NOI18N
47
return Enumerations.singleton (next);
48                 }
49             }
50         }
51         return null;
52     }
53     
54     public FeatureDescriptor JavaDoc getDescriptor() {
55         return new FeatureDescriptor JavaDoc();
56     }
57     
58     public GrammarQuery getGrammar(GrammarEnvironment env) {
59         // XXX pick up env.fileObject too
60
return new AntGrammar();
61     }
62     
63 }
64
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