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Java > Open Source Codes > org > eclipse > debug > internal > ui > actions > context > DisconnectAdapter


1 /*******************************************************************************
2  * Copyright (c) 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.debug.internal.ui.actions.context;
12
13 import org.eclipse.core.runtime.IAdaptable;
14 import org.eclipse.core.runtime.IProgressMonitor;
15 import org.eclipse.core.runtime.IStatus;
16 import org.eclipse.core.runtime.Status;
17 import org.eclipse.core.runtime.jobs.Job;
18 import org.eclipse.debug.core.DebugException;
19 import org.eclipse.debug.core.model.IDisconnect;
20 import org.eclipse.debug.internal.ui.actions.provisional.IAsynchronousDisconnectAdapter;
21 import org.eclipse.debug.internal.ui.actions.provisional.IBooleanRequestMonitor;
22 import org.eclipse.debug.internal.ui.viewers.provisional.IAsynchronousRequestMonitor;
23 import org.eclipse.debug.ui.IDebugUIConstants;
24
25 /**
26  * Default disconnect adapter for standard debug model.
27  *
28  * @since 3.2
29  */
30 public class DisconnectAdapter extends StandardActionAdapter implements IAsynchronousDisconnectAdapter {
31
32     /* (non-Javadoc)
33      * @see org.eclipse.debug.internal.ui.actions.provisional.IAsynchronousDisconnectAdapter#canDisconnect(java.lang.Object, org.eclipse.debug.internal.ui.actions.provisional.IBooleanRequestMonitor)
34      */
35     public void canDisconnect(final Object JavaDoc element, final IBooleanRequestMonitor requestMonitor) {
36         Job job = new Job("canDisconnect") { //$NON-NLS-1$
37 protected IStatus run(IProgressMonitor monitor) {
38                 IDisconnect disconnect = getTarget(element);
39                 if (disconnect != null)
40                     requestMonitor.setResult(disconnect.canDisconnect());
41                 else
42                     requestMonitor.setResult(false);
43                 requestMonitor.done();
44                 return Status.OK_STATUS;
45             }
46         };
47         job.setSystem(true);
48         job.setRule(createUpdateSchedulingRule());
49         job.schedule();
50     }
51
52     /* (non-Javadoc)
53      * @see org.eclipse.debug.internal.ui.actions.provisional.IAsynchronousDisconnectAdapter#isDisconnected(java.lang.Object, org.eclipse.debug.internal.ui.actions.provisional.IBooleanRequestMonitor)
54      */
55     public void isDisconnected(final Object JavaDoc element, final IBooleanRequestMonitor requestMonitor) {
56         Job job = new Job("isDisconnected") { //$NON-NLS-1$
57 protected IStatus run(IProgressMonitor monitor) {
58                 IDisconnect disconnect = getTarget(element);
59                 if (disconnect != null) {
60                     requestMonitor.setResult(disconnect.isDisconnected());
61                 } else {
62                     requestMonitor.setResult(false);
63                 }
64                 requestMonitor.done();
65                 return Status.OK_STATUS;
66             }
67         };
68         job.setSystem(true);
69         job.setRule(createUpdateSchedulingRule());
70         job.schedule();
71     }
72
73     /* (non-Javadoc)
74      * @see org.eclipse.debug.internal.ui.actions.provisional.IAsynchronousDisconnectAdapter#disconnect(java.lang.Object, org.eclipse.debug.internal.ui.viewers.provisional.IAsynchronousRequestMonitor)
75      */
76     public void disconnect(final Object JavaDoc element, final IAsynchronousRequestMonitor requestMonitor) {
77         Job job = new Job("isDisconnected") { //$NON-NLS-1$
78 protected IStatus run(IProgressMonitor monitor) {
79                 IDisconnect disconnect = getTarget(element);
80
81                 if (disconnect == null) {
82                     requestMonitor.setStatus(new Status(IStatus.ERROR, IDebugUIConstants.PLUGIN_ID, IDebugUIConstants.INTERNAL_ERROR, "element must be an instance of or adapt to IDisconnect", //$NON-NLS-1$
83 null));
84                 } else {
85                     try {
86                         disconnect.disconnect();
87                     } catch (DebugException e) {
88                         requestMonitor.setStatus(e.getStatus());
89                     }
90                 }
91                 requestMonitor.done();
92                 return Status.OK_STATUS;
93             }
94         };
95         job.setSystem(true);
96         job.schedule();
97     }
98
99     private IDisconnect getTarget(Object JavaDoc element) {
100         if (element instanceof IDisconnect) {
101             return (IDisconnect) element;
102         } else if (element instanceof IAdaptable) {
103             return (IDisconnect) ((IAdaptable) element).getAdapter(IDisconnect.class);
104         }
105         return null;
106     }
107
108 }
109
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