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1 | /********************************************************************** |
2 | * Copyright (c) 2012 Ericsson | |
cfdb727a | 3 | * |
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4 | * All rights reserved. This program and the accompanying materials are |
5 | * made available under the terms of the Eclipse Public License v1.0 which | |
6 | * accompanies this distribution, and is available at | |
7 | * http://www.eclipse.org/legal/epl-v10.html | |
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8 | * |
9 | * Contributors: | |
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10 | * Bernd Hufmann - Initial API and implementation |
11 | **********************************************************************/ | |
115b4a01 | 12 | package org.eclipse.linuxtools.internal.lttng2.ui.views.control.handlers; |
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13 | |
14 | import java.util.ArrayList; | |
15 | import java.util.Iterator; | |
16 | import java.util.List; | |
17 | ||
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18 | import org.eclipse.core.commands.ExecutionEvent; |
19 | import org.eclipse.core.commands.ExecutionException; | |
20 | import org.eclipse.core.runtime.IProgressMonitor; | |
21 | import org.eclipse.core.runtime.IStatus; | |
22 | import org.eclipse.core.runtime.Status; | |
23 | import org.eclipse.core.runtime.jobs.Job; | |
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24 | import org.eclipse.jface.viewers.ISelection; |
25 | import org.eclipse.jface.viewers.StructuredSelection; | |
9315aeee | 26 | import org.eclipse.linuxtools.internal.lttng2.core.control.model.TraceSessionState; |
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27 | import org.eclipse.linuxtools.internal.lttng2.ui.Activator; |
28 | import org.eclipse.linuxtools.internal.lttng2.ui.views.control.ControlView; | |
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29 | import org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.IConfirmDialog; |
30 | import org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.TraceControlDialogFactory; | |
9315aeee | 31 | import org.eclipse.linuxtools.internal.lttng2.ui.views.control.messages.Messages; |
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32 | import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceSessionComponent; |
33 | import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceSessionGroup; | |
bbb3538a | 34 | import org.eclipse.ui.IWorkbenchPage; |
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35 | import org.eclipse.ui.IWorkbenchWindow; |
36 | import org.eclipse.ui.PlatformUI; | |
37 | ||
38 | /** | |
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39 | * <p> |
40 | * Command handler implementation to destroy one or more trace sessions. | |
41 | * </p> | |
cfdb727a | 42 | * |
dbd4432d | 43 | * @author Bernd Hufmann |
bbb3538a | 44 | */ |
498704b3 | 45 | public class DestroySessionHandler extends BaseControlViewHandler { |
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46 | |
47 | // ------------------------------------------------------------------------ | |
48 | // Attributes | |
49 | // ------------------------------------------------------------------------ | |
50 | /** | |
cfdb727a | 51 | * The list of session components the command is to be executed on. |
bbb3538a | 52 | */ |
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53 | private final List<TraceSessionComponent> fSessions = new ArrayList<TraceSessionComponent>(); |
54 | ||
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55 | // ------------------------------------------------------------------------ |
56 | // Operations | |
57 | // ------------------------------------------------------------------------ | |
58 | /* | |
59 | * (non-Javadoc) | |
60 | * @see org.eclipse.core.commands.AbstractHandler#execute(org.eclipse.core.commands.ExecutionEvent) | |
61 | */ | |
62 | @Override | |
63 | public Object execute(ExecutionEvent event) throws ExecutionException { | |
64 | ||
65 | IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow(); | |
66 | ||
67 | if (window == null) { | |
68 | return false; | |
69 | } | |
70 | // Get user confirmation | |
d132bcc7 | 71 | IConfirmDialog dialog = TraceControlDialogFactory.getInstance().getConfirmDialog(); |
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72 | if (!dialog.openConfirm(window.getShell(), |
73 | Messages.TraceControl_DestroyConfirmationTitle, | |
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74 | Messages.TraceControl_DestroyConfirmationMessage)) { |
75 | ||
6503ae0f | 76 | return null; |
bbb3538a | 77 | } |
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78 | |
79 | Job job = new Job(Messages.TraceControl_DestroySessionJob) { | |
80 | @Override | |
81 | protected IStatus run(IProgressMonitor monitor) { | |
82 | try { | |
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83 | // Make a copy of the list of sessions to avoid ConcurrentModificationException when iterating |
84 | // over fSessions, since fSessions is modified in another thread triggered by the tree viewer refresh | |
6503ae0f | 85 | // after removing a session. |
cfdb727a | 86 | TraceSessionComponent[] sessions = fSessions.toArray(new TraceSessionComponent[fSessions.size()]); |
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87 | |
88 | for (int i = 0; i < sessions.length; i++) { | |
89 | // Destroy all selected sessions | |
90 | TraceSessionComponent session = sessions[i]; | |
91 | TraceSessionGroup sessionGroup = (TraceSessionGroup)session.getParent(); | |
92 | sessionGroup.destroySession(session, monitor); | |
93 | } | |
94 | } catch (ExecutionException e) { | |
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95 | return new Status(IStatus.ERROR, Activator.PLUGIN_ID, Messages.TraceControl_DestroySessionFailure, e); |
96 | } | |
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97 | return Status.OK_STATUS; |
98 | } | |
99 | }; | |
100 | job.setUser(true); | |
101 | job.schedule(); | |
102 | ||
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103 | return null; |
104 | } | |
105 | ||
106 | /* | |
107 | * (non-Javadoc) | |
108 | * @see org.eclipse.core.commands.AbstractHandler#isEnabled() | |
109 | */ | |
110 | @Override | |
111 | public boolean isEnabled() { | |
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112 | // Get workbench page for the Control View |
113 | IWorkbenchPage page = getWorkbenchPage(); | |
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114 | if (page == null) { |
115 | return false; | |
116 | } | |
498704b3 | 117 | fSessions.clear(); |
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118 | |
119 | // Check if one or more session are selected | |
120 | ISelection selection = page.getSelection(ControlView.ID); | |
121 | if (selection instanceof StructuredSelection) { | |
122 | StructuredSelection structered = ((StructuredSelection) selection); | |
123 | for (Iterator<?> iterator = structered.iterator(); iterator.hasNext();) { | |
cfdb727a | 124 | Object element = iterator.next(); |
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125 | if (element instanceof TraceSessionComponent) { |
126 | // Add only TraceSessionComponents that are inactive and not destroyed | |
127 | TraceSessionComponent session = (TraceSessionComponent) element; | |
128 | if ((session.getSessionState() == TraceSessionState.INACTIVE) && (!session.isDestroyed())) { | |
129 | fSessions.add((TraceSessionComponent)element); | |
130 | } | |
131 | } | |
132 | } | |
133 | } | |
c56972bb | 134 | return !fSessions.isEmpty(); |
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135 | } |
136 | } |