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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 | **********************************************************************/ | |
12 | package org.eclipse.linuxtools.internal.lttng2.ui.views.control.handlers; | |
13 | ||
14 | import java.util.Iterator; | |
15 | ||
16 | import org.eclipse.core.commands.ExecutionEvent; | |
17 | import org.eclipse.core.commands.ExecutionException; | |
18 | import org.eclipse.core.runtime.IProgressMonitor; | |
19 | import org.eclipse.core.runtime.IStatus; | |
20 | import org.eclipse.core.runtime.Status; | |
21 | import org.eclipse.core.runtime.jobs.Job; | |
22 | import org.eclipse.jface.viewers.ISelection; | |
23 | import org.eclipse.jface.viewers.StructuredSelection; | |
24 | import org.eclipse.linuxtools.internal.lttng2.ui.Activator; | |
25 | import org.eclipse.linuxtools.internal.lttng2.ui.views.control.ControlView; | |
9315aeee | 26 | import org.eclipse.linuxtools.internal.lttng2.ui.views.control.messages.Messages; |
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27 | import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceDomainComponent; |
28 | import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceSessionComponent; | |
29 | import org.eclipse.ui.IWorkbenchPage; | |
30 | import org.eclipse.ui.IWorkbenchWindow; | |
31 | import org.eclipse.ui.PlatformUI; | |
32 | ||
33 | /** | |
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34 | * <p> |
35 | * Command handler implementation to execute command calibrate to quantify LTTng overhead. | |
36 | * </p> | |
cfdb727a | 37 | * |
dbd4432d | 38 | * @author Bernd Hufmann |
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39 | */ |
40 | public class CalibrateHandler extends BaseControlViewHandler { | |
41 | ||
42 | // ------------------------------------------------------------------------ | |
43 | // Attributes | |
44 | // ------------------------------------------------------------------------ | |
45 | /** | |
46 | * The command execution parameter. | |
47 | */ | |
48 | protected DomainCommandParameter fParam = null; | |
49 | ||
50 | // ------------------------------------------------------------------------ | |
51 | // Operations | |
52 | // ------------------------------------------------------------------------ | |
cfdb727a | 53 | |
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54 | /* |
55 | * (non-Javadoc) | |
56 | * @see org.eclipse.core.commands.AbstractHandler#execute(org.eclipse.core.commands.ExecutionEvent) | |
57 | */ | |
58 | @Override | |
59 | public Object execute(ExecutionEvent event) throws ExecutionException { | |
60 | ||
61 | final IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow(); | |
62 | ||
63 | if (window == null) { | |
64 | return false; | |
65 | } | |
66 | fLock.lock(); | |
67 | try { | |
68 | // Make a copy for thread safety | |
69 | final DomainCommandParameter param = fParam.clone(); | |
70 | ||
71 | Job addJob = new Job(Messages.TraceControl_AddCalibrateJob) { | |
72 | @Override | |
73 | protected IStatus run(IProgressMonitor monitor) { | |
74 | try { | |
75 | param.getDomain().calibrate(monitor); | |
76 | } catch (ExecutionException e) { | |
cfdb727a | 77 | return new Status(IStatus.ERROR, Activator.PLUGIN_ID, Messages.TraceControl_AddCalibrateFailure, e); |
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78 | } |
79 | ||
80 | return Status.OK_STATUS; | |
81 | } | |
82 | }; | |
83 | addJob.setUser(true); | |
84 | addJob.schedule(); | |
85 | ||
86 | } finally { | |
87 | fLock.unlock(); | |
88 | } | |
89 | return Status.OK_STATUS; | |
90 | } | |
91 | ||
92 | /* | |
93 | * (non-Javadoc) | |
94 | * @see org.eclipse.core.commands.AbstractHandler#isEnabled() | |
95 | */ | |
96 | @Override | |
97 | public boolean isEnabled() { | |
cfdb727a | 98 | |
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99 | // Get workbench page for the Control View |
100 | IWorkbenchPage page = getWorkbenchPage(); | |
101 | if (page == null) { | |
102 | return false; | |
103 | } | |
104 | ||
105 | TraceDomainComponent domain = null; | |
106 | TraceSessionComponent session = null; | |
107 | ||
108 | // Check if one domain is selected | |
109 | ISelection selection = page.getSelection(ControlView.ID); | |
110 | if (selection instanceof StructuredSelection) { | |
111 | StructuredSelection structered = ((StructuredSelection) selection); | |
112 | for (Iterator<?> iterator = structered.iterator(); iterator.hasNext();) { | |
cfdb727a | 113 | Object element = iterator.next(); |
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114 | if (element instanceof TraceDomainComponent) { |
115 | TraceDomainComponent tmpDomain = (TraceDomainComponent) element; | |
116 | session = (TraceSessionComponent) tmpDomain.getParent(); | |
cfdb727a | 117 | |
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118 | // Add only TraceDomainComponent whose TraceSessionComponent parent is not destroyed |
119 | if ((!session.isDestroyed())) { | |
120 | domain = tmpDomain; | |
121 | } | |
122 | } | |
123 | } | |
124 | } | |
125 | ||
126 | boolean isEnabled = domain != null; | |
127 | ||
128 | fLock.lock(); | |
129 | try { | |
130 | fParam = null; | |
131 | if (isEnabled) { | |
132 | fParam = new DomainCommandParameter(session, domain); | |
133 | } | |
134 | } finally { | |
135 | fLock.unlock(); | |
136 | } | |
137 | ||
138 | return isEnabled; | |
139 | } | |
140 | } |