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Java > Open Source Codes > org > netbeans > modules > web > jsf > JSFGrammarQueryManager


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.web.jsf;
21 import java.util.Enumeration JavaDoc;
22 import org.w3c.dom.Element JavaDoc;
23 import org.w3c.dom.Node JavaDoc;
24 import org.xml.sax.*;
25 import org.netbeans.modules.xml.api.model.DTDUtil;
26 import org.netbeans.api.xml.services.UserCatalog;
27
28 /** DD Grammar provided code completion for web.xml specified by XML schema.
29  *
30  * @author Petr Pisl
31  */
32 public class JSFGrammarQueryManager extends org.netbeans.modules.xml.api.model.GrammarQueryManager
33 {
34     private static final String JavaDoc XMLNS_ATTR="xmlns"; //NOI18N
35 private static final String JavaDoc JSF_TAG="faces-config"; //NOI18N
36
37     public java.util.Enumeration JavaDoc enabled(org.netbeans.modules.xml.api.model.GrammarEnvironment ctx) {
38         if (ctx.getFileObject() == null) return null;
39         Enumeration JavaDoc en = ctx.getDocumentChildren();
40         while (en.hasMoreElements()) {
41             Node JavaDoc next = (Node JavaDoc) en.nextElement();
42             if (next.getNodeType() == next.DOCUMENT_TYPE_NODE) {
43                 return null; // null for files specified by DTD
44 } else if (next.getNodeType() == next.ELEMENT_NODE) {
45                 Element JavaDoc element = (Element JavaDoc) next;
46                 String JavaDoc tag = element.getTagName();
47                 if (JSF_TAG.equals(tag)) {
48                     String JavaDoc xmlns = element.getAttribute(XMLNS_ATTR);
49                     if (xmlns!=null && JSFCatalog.JAVAEE_NS.equals(xmlns)){
50                             return org.openide.util.Enumerations.singleton (next);
51                     }
52                 }
53             }
54         }
55         
56         return null;
57     }
58     
59     public java.beans.FeatureDescriptor JavaDoc getDescriptor() {
60         return new java.beans.FeatureDescriptor JavaDoc();
61     }
62     
63     /** Returns pseudo DTD for code completion
64     */
65     public org.netbeans.modules.xml.api.model.GrammarQuery getGrammar(org.netbeans.modules.xml.api.model.GrammarEnvironment ctx) {
66         UserCatalog catalog = UserCatalog.getDefault();
67         if (catalog != null) {
68             EntityResolver resolver = catalog.getEntityResolver();
69             if (resolver != null) {
70                 try {
71                     String JavaDoc schema = JSFCatalog.JSF_ID_1_2;
72                     InputSource inputSource = resolver.resolveEntity(schema, null);
73                     if (inputSource!=null) {
74                         return DTDUtil.parseDTD(true, inputSource);
75                     }
76                 } catch(SAXException e) {
77                     e.printStackTrace(System.out);
78                 } catch(java.io.IOException JavaDoc e) {
79                     e.printStackTrace(System.out);
80                 }
81             }
82         }
83         return null;
84     }
85     
86 }
87
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