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Java > Open Source Codes > org > eclipse > update > internal > ui > model > FeatureReferenceAdapter


1 /*******************************************************************************
2  * Copyright (c) 2000, 2006 IBM Corporation and others.
3  * All rights reserved. This program and the accompanying materials
4  * are made available under the terms of the Eclipse Public License v1.0
5  * which accompanies this distribution, and is available at
6  * http://www.eclipse.org/legal/epl-v10.html
7  *
8  * Contributors:
9  * IBM Corporation - initial API and implementation
10  *******************************************************************************/

11 package org.eclipse.update.internal.ui.model;
12 import java.lang.reflect.*;
13 import java.net.*;
14
15 import org.eclipse.core.runtime.*;
16 import org.eclipse.jface.operation.*;
17 import org.eclipse.update.core.*;
18 import org.eclipse.update.internal.ui.*;
19
20 public class FeatureReferenceAdapter extends FeatureAdapter {
21     private IFeatureReference featureRef;
22     private boolean touched;
23
24     public FeatureReferenceAdapter(IFeatureReference featureRef) {
25         this.featureRef = featureRef;
26         setIncluded(featureRef instanceof IIncludedFeatureReference);
27     }
28     
29     public IFeature getFeature(IProgressMonitor monitor) throws CoreException {
30         return featureRef.getFeature(monitor);
31     }
32     
33     public String JavaDoc getFastLabel() {
34         return featureRef.getURL().toString();
35     }
36     
37     public ISite getSite() {
38         return featureRef.getSite();
39     }
40     
41     public URL getURL() {
42         return featureRef.getURL();
43     }
44     
45     public boolean isOptional() {
46         return featureRef instanceof IIncludedFeatureReference ?
47             ((IIncludedFeatureReference)featureRef).isOptional():false;
48     }
49     
50     public void touchIncludedFeatures(IRunnableContext context) {
51         if (touched) return;
52         final IFeatureReference [] included;
53         
54         try {
55             included = getFeature(null).getIncludedFeatureReferences();
56         }
57         catch (CoreException e) {
58             return;
59         }
60         if (included.length == 0) return;
61         IRunnableWithProgress op = new IRunnableWithProgress () {
62             public void run(IProgressMonitor monitor) {
63                 monitor.beginTask(UpdateUIMessages.SiteBookmark_downloading, included.length);
64                 for (int i=0; i<included.length; i++) {
65                     IFeatureReference ref = included[i];
66                     try {
67                         monitor.subTask(ref.getURL().toString());
68                         ref.getFeature(new SubProgressMonitor(monitor, 1));
69                         //monitor.worked(1);
70
}
71                     catch (CoreException e) {
72                     }
73                 }
74                 monitor.done();
75             }
76         };
77         try {
78             context.run(true, false, op);
79             touched=true;
80         }
81         catch (InvocationTargetException e) {
82         }
83         catch (InterruptedException JavaDoc e) {
84         }
85     }
86
87     public IFeatureAdapter[] getIncludedFeatures(IProgressMonitor monitor) {
88         try {
89             IFeatureReference[] included =
90                 getFeature(monitor).getIncludedFeatureReferences();
91             FeatureReferenceAdapter[] result =
92                 new FeatureReferenceAdapter[included.length];
93             for (int i = 0; i < included.length; i++) {
94                 result[i] = new FeatureReferenceAdapter(included[i]);
95             }
96             return result;
97         } catch (CoreException e) {
98             return new IFeatureAdapter[0];
99         }
100     }
101
102     public IFeatureReference getFeatureReference() {
103         return featureRef;
104     }
105 }
106
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