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Java > Open Source Codes > org > netbeans > modules > java > debug > ElementNavigatorJavaSourceFactory


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 package org.netbeans.modules.java.debug;
20
21 import java.util.Collections JavaDoc;
22 import java.util.List JavaDoc;
23 import org.netbeans.api.java.source.CancellableTask;
24 import org.netbeans.api.java.source.CompilationInfo;
25 import org.netbeans.api.java.source.JavaSource;
26 import org.netbeans.api.java.source.JavaSource.Phase;
27 import org.netbeans.api.java.source.JavaSource.Priority;
28 import org.netbeans.api.java.source.support.LookupBasedJavaSourceTaskFactory;
29 import org.netbeans.modules.java.debug.TreeNavigatorJavaSourceFactory.WrapperTask;
30 import org.openide.filesystems.FileObject;
31 import org.openide.util.Lookup;
32
33 /**
34  *
35  * @author Jan Lahoda
36  */
37 public final class ElementNavigatorJavaSourceFactory extends LookupBasedJavaSourceTaskFactory {
38     
39     private CancellableTask<CompilationInfo> task;
40     
41     static ElementNavigatorJavaSourceFactory getInstance() {
42         return Lookup.getDefault().lookup(ElementNavigatorJavaSourceFactory.class);
43     }
44     
45     public ElementNavigatorJavaSourceFactory() {
46         super(Phase.UP_TO_DATE, Priority.NORMAL);
47     }
48
49     public synchronized CancellableTask<CompilationInfo> createTask(FileObject file) {
50         //XXX: should not be necessary to do the wrapper task, but for some reason it is necessary:
51 return new WrapperTask(task);
52     }
53
54     public List JavaDoc<FileObject> getFileObjects() {
55         List JavaDoc<FileObject> result = super.getFileObjects();
56
57         if (result.size() == 1)
58             return result;
59
60         return Collections.emptyList();
61     }
62
63     public FileObject getFile() {
64         List JavaDoc<FileObject> result = super.getFileObjects();
65         
66         if (result.size() == 1)
67             return result.get(0);
68         
69         return null;
70     }
71
72     public synchronized void setLookup(Lookup l, CancellableTask<CompilationInfo> task) {
73         this.task = task;
74         super.setLookup(l);
75     }
76
77 }
78
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