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Java > Open Source Codes > org > netbeans > modules > projectimport > jbuilder > parsing > ProjectBuilder


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.projectimport.jbuilder.parsing;
21
22 import java.io.File JavaDoc;
23 import java.util.Collection JavaDoc;
24 import java.util.Collections JavaDoc;
25 import org.openide.filesystems.FileObject;
26 import org.openide.filesystems.FileUtil;
27
28
29 /**
30  * Serveral helpers for parsing, managing, loading JBuilder projects
31  *
32  * @author Radek Matous
33  */
34 public abstract class ProjectBuilder {
35     private static final ProjectBuilder[] SUPPORTED_TYPES = new ProjectBuilder[] {
36         new JpxBuilder(".jpr"),//NOI18N;
37 new JpxBuilder(".jpx")//NOI18N;
38 };
39
40     public static boolean isProjectFile(final File JavaDoc file) {
41         return (getProvider(file) != null);
42     }
43     
44     /** may return null for not supported files*/
45     public static Collection JavaDoc/*<ProjectModel>*/ buildProjectModels(final File JavaDoc file) {
46         ProjectBuilder provider = null;
47         provider = getProvider(file);
48         
49         return (provider != null) ? provider.buildImpl(file) : Collections.EMPTY_LIST;
50     }
51     
52     static ProjectBuilder getProvider(final File JavaDoc file) {
53         FileObject fo = FileUtil.toFileObject(FileUtil.normalizeFile(file));
54         if (fo != null) {
55             for (int i = 0; i < SUPPORTED_TYPES.length; i++) {
56                 if (SUPPORTED_TYPES[i].isProjectFileImpl(file)) {
57                     return SUPPORTED_TYPES[i];
58                 }
59             }
60         }
61         
62         return null;
63     }
64         
65     protected abstract Collection JavaDoc/*<ProjectModel>*/ buildImpl(File JavaDoc file);
66     protected abstract String JavaDoc getSupportedExtension();
67     private final boolean isProjectFileImpl(File JavaDoc file) {
68         return file.getName().toLowerCase().endsWith(getSupportedExtension());
69     }
70 }
71
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