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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 | **********************************************************************/ | |
12 | package org.eclipse.linuxtools.internal.lttng2.ui.views.control.handlers; | |
13 | ||
14 | import java.util.ArrayList; | |
15 | import java.util.List; | |
16 | ||
17 | import org.eclipse.core.commands.ExecutionEvent; | |
18 | import org.eclipse.core.commands.ExecutionException; | |
19 | import org.eclipse.core.runtime.IProgressMonitor; | |
20 | import org.eclipse.core.runtime.IStatus; | |
21 | import org.eclipse.core.runtime.Status; | |
22 | import org.eclipse.core.runtime.jobs.Job; | |
23 | import org.eclipse.jface.window.Window; | |
9315aeee | 24 | import org.eclipse.linuxtools.internal.lttng2.core.control.model.IChannelInfo; |
c56972bb | 25 | import org.eclipse.linuxtools.internal.lttng2.ui.Activator; |
d62bfa55 | 26 | import org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.IEnableChannelDialog; |
c56972bb | 27 | import org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.TraceControlDialogFactory; |
9315aeee | 28 | import org.eclipse.linuxtools.internal.lttng2.ui.views.control.messages.Messages; |
c56972bb BH |
29 | import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceDomainComponent; |
30 | ||
31 | /** | |
c56972bb | 32 | * <p> |
d62bfa55 | 33 | * Base implementation of a command handler to enable a trace channel. |
c56972bb | 34 | * </p> |
dbd4432d BH |
35 | * |
36 | * @author Bernd Hufmann | |
c56972bb | 37 | */ |
d62bfa55 | 38 | abstract class BaseEnableChannelHandler extends BaseControlViewHandler { |
c56972bb BH |
39 | |
40 | // ------------------------------------------------------------------------ | |
41 | // Attributes | |
42 | // ------------------------------------------------------------------------ | |
43 | protected CommandParameter fParam; | |
44 | ||
45 | // ------------------------------------------------------------------------ | |
46 | // Operations | |
47 | // ------------------------------------------------------------------------ | |
48 | /** | |
49 | * Enables channels with given names which are part of this domain. If a given channel | |
50 | * doesn't exists it creates a new channel with the given parameters (or default values | |
51 | * if given parameter is null). | |
52 | * @param - a parameter instance with data for the command execution | |
53 | * @param channelNames - a list of channel names to enable on this domain | |
54 | * @param info - channel information to set for the channel (use null for default) | |
55 | * @param isKernel - a flag for indicating kernel or UST. | |
56 | * @param monitor - a progress monitor | |
57 | * @throws ExecutionException | |
58 | */ | |
59 | abstract public void enableChannel(CommandParameter param, List<String> channelNames, IChannelInfo info, boolean isKernel, IProgressMonitor monitor) throws ExecutionException; | |
60 | ||
61 | /** | |
62 | * @param - a parameter instance with data for the command execution | |
63 | * @return returns the relevant domain (null if domain is not known) | |
64 | */ | |
65 | abstract public TraceDomainComponent getDomain(CommandParameter param); | |
66 | ||
67 | /* | |
68 | * (non-Javadoc) | |
69 | * @see org.eclipse.core.commands.AbstractHandler#execute(org.eclipse.core.commands.ExecutionEvent) | |
70 | */ | |
71 | @Override | |
72 | public Object execute(ExecutionEvent event) throws ExecutionException { | |
73 | fLock.lock(); | |
74 | try { | |
75 | final CommandParameter param = fParam.clone(); | |
76 | ||
d62bfa55 | 77 | final IEnableChannelDialog dialog = TraceControlDialogFactory.getInstance().getEnableChannelDialog(); |
c56972bb BH |
78 | dialog.setDomainComponent(getDomain(param)); |
79 | ||
80 | if (dialog.open() != Window.OK) { | |
81 | return null; | |
82 | } | |
83 | ||
f455db37 | 84 | Job job = new Job(Messages.TraceControl_CreateChannelStateJob) { |
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85 | @Override |
86 | protected IStatus run(IProgressMonitor monitor) { | |
f455db37 | 87 | Exception error = null; |
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88 | |
89 | List<String> channelNames = new ArrayList<String>(); | |
90 | channelNames.add(dialog.getChannelInfo().getName()); | |
91 | ||
92 | try { | |
93 | enableChannel(param, channelNames, dialog.getChannelInfo(), dialog.isKernel(), monitor); | |
94 | } catch (ExecutionException e) { | |
f455db37 | 95 | error = e; |
c56972bb BH |
96 | } |
97 | ||
f455db37 BH |
98 | // refresh in all cases |
99 | refresh(param); | |
c56972bb | 100 | |
f455db37 BH |
101 | if (error != null) { |
102 | return new Status(Status.ERROR, Activator.PLUGIN_ID, Messages.TraceControl_CreateChannelStateFailure, error); | |
c56972bb BH |
103 | } |
104 | return Status.OK_STATUS; | |
105 | } | |
106 | }; | |
107 | job.setUser(true); | |
108 | job.schedule(); | |
109 | } finally { | |
110 | fLock.unlock(); | |
111 | } | |
112 | return null; | |
113 | } | |
114 | ||
115 | } |