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1 | /********************************************************************** |
2 | * Copyright (c) 2012 Ericsson | |
3 | * | |
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 | |
8 | * | |
9 | * Contributors: | |
10 | * Bernd Hufmann - Initial API and implementation | |
11 | **********************************************************************/ | |
31a6a4e4 | 12 | package org.eclipse.linuxtools.internal.lttng.ui.views.control.handlers; |
6503ae0f BH |
13 | |
14 | import java.util.ArrayList; | |
15 | import java.util.Iterator; | |
16 | import java.util.List; | |
17 | ||
6503ae0f BH |
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; | |
24 | import org.eclipse.jface.viewers.ISelection; | |
25 | import org.eclipse.jface.viewers.StructuredSelection; | |
26 | import org.eclipse.jface.window.Window; | |
31a6a4e4 BH |
27 | import org.eclipse.linuxtools.internal.lttng.ui.Activator; |
28 | import org.eclipse.linuxtools.internal.lttng.ui.views.control.ControlView; | |
29 | import org.eclipse.linuxtools.internal.lttng.ui.views.control.Messages; | |
30 | import org.eclipse.linuxtools.internal.lttng.ui.views.control.dialogs.IGetEventInfoDialog; | |
31 | import org.eclipse.linuxtools.internal.lttng.ui.views.control.dialogs.TraceControlDialogFactory; | |
32 | import org.eclipse.linuxtools.internal.lttng.ui.views.control.model.ITraceControlComponent; | |
33 | import org.eclipse.linuxtools.internal.lttng.ui.views.control.model.impl.BaseEventComponent; | |
34 | import org.eclipse.linuxtools.internal.lttng.ui.views.control.model.impl.KernelProviderComponent; | |
35 | import org.eclipse.linuxtools.internal.lttng.ui.views.control.model.impl.TargetNodeComponent; | |
36 | import org.eclipse.linuxtools.internal.lttng.ui.views.control.model.impl.TraceChannelComponent; | |
37 | import org.eclipse.linuxtools.internal.lttng.ui.views.control.model.impl.TraceSessionComponent; | |
38 | import org.eclipse.linuxtools.internal.lttng.ui.views.control.model.impl.UstProviderComponent; | |
6503ae0f | 39 | import org.eclipse.ui.IWorkbenchPage; |
6503ae0f BH |
40 | |
41 | /** | |
42 | * <b><u>EnableEventHandler</u></b> | |
43 | * <p> | |
44 | * Command handler implementation to assign events to a session and channel and enable/configure them. | |
45 | * This is done on the trace provider level. | |
46 | * </p> | |
47 | */ | |
d132bcc7 | 48 | public class AssignEventHandler extends BaseControlViewHandler { |
6503ae0f BH |
49 | |
50 | // ------------------------------------------------------------------------ | |
51 | // Attributes | |
52 | // ------------------------------------------------------------------------ | |
53 | /** | |
54 | * The list of event components the command is to be executed on. | |
55 | */ | |
56 | private List<BaseEventComponent> fEvents = new ArrayList<BaseEventComponent>(); | |
57 | ||
58 | /** | |
59 | * The list of available sessions. | |
60 | */ | |
61 | private TraceSessionComponent[] fSessions; | |
62 | ||
63 | /** | |
64 | * Flag for indicating Kernel or UST. | |
65 | */ | |
66 | Boolean fIsKernel = null; | |
67 | ||
68 | // ------------------------------------------------------------------------ | |
69 | // Operations | |
70 | // ------------------------------------------------------------------------ | |
71 | ||
72 | /* | |
73 | * (non-Javadoc) | |
74 | * @see org.eclipse.core.commands.AbstractHandler#execute(org.eclipse.core.commands.ExecutionEvent) | |
75 | */ | |
76 | @Override | |
77 | public Object execute(ExecutionEvent event) throws ExecutionException { | |
78 | ||
6503ae0f | 79 | // Open dialog box to retrieve the session and channel where the events should be enabled in. |
d132bcc7 BH |
80 | final IGetEventInfoDialog dialog = TraceControlDialogFactory.getInstance().getGetEventInfoDialog(); |
81 | dialog.setIsKernel(fIsKernel); | |
82 | dialog.setSessions(fSessions); | |
6503ae0f BH |
83 | |
84 | if (dialog.open() != Window.OK) { | |
85 | return null; | |
86 | } | |
87 | ||
88 | Job job = new Job(Messages.TraceControl_EnableEventsJob) { | |
89 | @Override | |
90 | protected IStatus run(IProgressMonitor monitor) { | |
91 | ||
92 | String errorString = null; | |
93 | try { | |
94 | List<String> eventNames = new ArrayList<String>(); | |
95 | // Create list of event names | |
96 | for (Iterator<BaseEventComponent> iterator = fEvents.iterator(); iterator.hasNext();) { | |
97 | BaseEventComponent event = (BaseEventComponent) iterator.next(); | |
98 | eventNames.add(event.getName()); | |
99 | } | |
100 | ||
101 | TraceChannelComponent channel = dialog.getChannel(); | |
102 | if (channel == null) { | |
103 | // enable events on default channel (which will be created by lttng-tools) | |
498704b3 | 104 | dialog.getSession().enableEvents(eventNames, fIsKernel, monitor); |
6503ae0f | 105 | } else { |
498704b3 | 106 | channel.enableEvents(eventNames, monitor); |
6503ae0f BH |
107 | } |
108 | ||
109 | } catch (ExecutionException e) { | |
110 | errorString = e.toString() + "\n"; //$NON-NLS-1$ | |
111 | } | |
112 | ||
113 | // get session configuration in all cases | |
114 | try { | |
115 | dialog.getSession().getConfigurationFromNode(monitor); | |
116 | } catch (ExecutionException e) { | |
117 | if (errorString == null) { | |
118 | errorString = new String(); | |
119 | } | |
120 | errorString += Messages.TraceControl_ListSessionFailure + ": " + e.toString(); //$NON-NLS-1$ | |
121 | } | |
122 | ||
123 | if (errorString != null) { | |
31a6a4e4 | 124 | return new Status(Status.ERROR, Activator.PLUGIN_ID, errorString); |
6503ae0f BH |
125 | } |
126 | return Status.OK_STATUS; | |
127 | } | |
128 | }; | |
129 | job.setUser(true); | |
130 | job.schedule(); | |
131 | return null; | |
132 | } | |
133 | ||
134 | /* | |
135 | * (non-Javadoc) | |
136 | * @see org.eclipse.core.commands.AbstractHandler#isEnabled() | |
137 | */ | |
138 | @Override | |
139 | public boolean isEnabled() { | |
140 | fEvents.clear(); | |
141 | fSessions = null; | |
142 | fIsKernel = null; | |
143 | ||
d132bcc7 BH |
144 | // Get workbench page for the Control View |
145 | IWorkbenchPage page = getWorkbenchPage(); | |
6503ae0f BH |
146 | if (page == null) { |
147 | return false; | |
148 | } | |
149 | ||
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150 | // Check if one or more session are selected |
151 | ISelection selection = page.getSelection(ControlView.ID); | |
152 | if (selection instanceof StructuredSelection) { | |
153 | ||
154 | StructuredSelection structered = ((StructuredSelection) selection); | |
155 | for (Iterator<?> iterator = structered.iterator(); iterator.hasNext();) { | |
156 | Object element = (Object) iterator.next(); | |
157 | if (element instanceof BaseEventComponent) { | |
158 | BaseEventComponent event = (BaseEventComponent) element; | |
159 | ITraceControlComponent provider = event.getParent(); | |
160 | ||
161 | // check for kernel or UST provider | |
162 | boolean temp = false; | |
163 | if (provider instanceof KernelProviderComponent) { | |
164 | temp = true; | |
165 | } else if (provider instanceof UstProviderComponent) { | |
166 | temp = false; | |
167 | } else { | |
168 | return false; | |
169 | } | |
170 | if (fIsKernel == null) { | |
171 | fIsKernel = Boolean.valueOf(temp); | |
172 | } else { | |
173 | // don't mix events from Kernel and UST provider | |
174 | if (fIsKernel.booleanValue() != temp) { | |
175 | return false; | |
176 | } | |
177 | } | |
178 | ||
179 | // Add BaseEventComponents | |
180 | fEvents.add(event); | |
181 | ||
182 | if (fSessions == null) { | |
183 | TargetNodeComponent root = (TargetNodeComponent)event.getParent().getParent().getParent(); | |
184 | fSessions = root.getSessions(); | |
185 | } | |
186 | } | |
187 | } | |
188 | } | |
189 | return ((fEvents.size() > 0) && (fSessions != null) && (fSessions.length > 0)); | |
190 | } | |
191 | } |