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b793fbe1 | 1 | /********************************************************************** |
11252342 | 2 | * Copyright (c) 2012, 2013 Ericsson |
cfdb727a | 3 | * |
b793fbe1 BH |
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 | |
cfdb727a AM |
8 | * |
9 | * Contributors: | |
b793fbe1 BH |
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 | import java.util.List; | |
16 | ||
17 | import org.eclipse.core.commands.ExecutionException; | |
18 | import org.eclipse.core.runtime.IProgressMonitor; | |
19 | import org.eclipse.jface.viewers.ISelection; | |
20 | import org.eclipse.jface.viewers.StructuredSelection; | |
9315aeee | 21 | import org.eclipse.linuxtools.internal.lttng2.core.control.model.TraceSessionState; |
b793fbe1 | 22 | import org.eclipse.linuxtools.internal.lttng2.ui.views.control.ControlView; |
b793fbe1 BH |
23 | import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceChannelComponent; |
24 | import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceSessionComponent; | |
25 | import org.eclipse.ui.IWorkbenchPage; | |
26 | ||
27 | /** | |
b793fbe1 BH |
28 | * <p> |
29 | * Command handler implementation to add contexts to a given channel and all of its events. | |
30 | * </p> | |
cfdb727a | 31 | * |
dbd4432d | 32 | * @author Bernd Hufmann |
b793fbe1 BH |
33 | */ |
34 | public class AddContextOnChannelHandler extends BaseAddContextHandler { | |
35 | ||
36 | // ------------------------------------------------------------------------ | |
37 | // Attributes | |
38 | // ------------------------------------------------------------------------ | |
cfdb727a | 39 | |
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40 | // ------------------------------------------------------------------------ |
41 | // Operations | |
42 | // ------------------------------------------------------------------------ | |
11252342 | 43 | |
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44 | @Override |
45 | public void addContexts(CommandParameter param, List<String> contextNames, IProgressMonitor monitor) throws ExecutionException { | |
46 | if (param instanceof ChannelCommandParameter) { | |
47 | TraceChannelComponent channel = ((ChannelCommandParameter)param).getChannel(); | |
48 | channel.addContexts(contextNames, monitor); | |
49 | } | |
50 | } | |
51 | ||
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52 | @Override |
53 | public boolean isEnabled() { | |
54 | // Get workbench page for the Control View | |
55 | IWorkbenchPage page = getWorkbenchPage(); | |
56 | if (page == null) { | |
57 | return false; | |
58 | } | |
59 | ||
60 | TraceChannelComponent channel = null; | |
61 | TraceSessionComponent session = null; | |
62 | ISelection selection = page.getSelection(ControlView.ID); | |
63 | if (selection instanceof StructuredSelection) { | |
64 | StructuredSelection structered = ((StructuredSelection) selection); | |
65 | for (Iterator<?> iterator = structered.iterator(); iterator.hasNext();) { | |
cfdb727a | 66 | Object element = iterator.next(); |
b793fbe1 BH |
67 | if (element instanceof TraceChannelComponent) { |
68 | // Add only if corresponding TraceSessionComponents is inactive and not destroyed | |
cfdb727a | 69 | TraceChannelComponent tmpChannel = (TraceChannelComponent) element; |
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70 | session = tmpChannel.getSession(); |
71 | if(session.getSessionState() == TraceSessionState.INACTIVE && !session.isDestroyed()) { | |
72 | channel = tmpChannel; | |
73 | } | |
74 | } | |
75 | } | |
76 | } | |
cfdb727a | 77 | |
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78 | boolean isEnabled = (channel != null); |
79 | fLock.lock(); | |
80 | try { | |
81 | fParam = null; | |
82 | if(isEnabled) { | |
83 | fParam = new ChannelCommandParameter(session, channel); | |
84 | } | |
85 | } finally { | |
86 | fLock.unlock(); | |
87 | } | |
88 | return isEnabled; | |
89 | } | |
90 | } |