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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.lttng.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; | |
21 | import org.eclipse.linuxtools.lttng.ui.views.control.ControlView; | |
22 | import org.eclipse.linuxtools.lttng.ui.views.control.model.impl.TraceChannelComponent; | |
23 | import org.eclipse.ui.IWorkbenchPage; | |
24 | ||
25 | /** | |
26 | * <b><u>EnableEventOnChannelHandler</u></b> | |
27 | * <p> | |
28 | * Command handler implementation to enable events for a known channel. | |
29 | * </p> | |
30 | */ | |
31 | public class EnableEventOnChannelHandler extends BaseEnableEventHandler { | |
32 | ||
33 | // ------------------------------------------------------------------------ | |
34 | // Attributes | |
35 | // ------------------------------------------------------------------------ | |
36 | /** | |
37 | * The channel component the command is to be executed on. | |
38 | */ | |
39 | private TraceChannelComponent fChannel = null; | |
40 | ||
41 | // ------------------------------------------------------------------------ | |
42 | // Operations | |
43 | // ------------------------------------------------------------------------ | |
44 | /* | |
45 | * (non-Javadoc) | |
46 | * @see org.eclipse.linuxtools.lttng.ui.views.control.handlers.BaseEnableEventHandler#enableEvents(java.util.List, org.eclipse.core.runtime.IProgressMonitor) | |
47 | */ | |
48 | @Override | |
49 | void enableEvents(List<String> eventNames, IProgressMonitor monitor) throws ExecutionException { | |
50 | fChannel.enableEvents(eventNames, monitor); | |
51 | } | |
52 | ||
53 | /* | |
54 | * (non-Javadoc) | |
55 | * @see org.eclipse.linuxtools.lttng.ui.views.control.handlers.BaseEnableEventHandler#enableSyscalls(org.eclipse.core.runtime.IProgressMonitor) | |
56 | */ | |
57 | @Override | |
58 | void enableSyscalls(IProgressMonitor monitor) throws ExecutionException { | |
59 | fChannel.enableSyscalls(monitor); | |
60 | } | |
61 | ||
62 | /* | |
63 | * (non-Javadoc) | |
64 | * @see org.eclipse.linuxtools.lttng.ui.views.control.handlers.BaseEnableEventHandler#enableProbe(java.lang.String, java.lang.String, org.eclipse.core.runtime.IProgressMonitor) | |
65 | */ | |
66 | @Override | |
67 | void enableProbe(String eventName, String probe, IProgressMonitor monitor) throws ExecutionException { | |
68 | fChannel.enableProbe(eventName, probe, monitor); | |
69 | } | |
70 | ||
71 | /* | |
72 | * (non-Javadoc) | |
73 | * @see org.eclipse.linuxtools.lttng.ui.views.control.handlers.BaseEnableEventHandler#enableFunctionProbe(java.lang.String, java.lang.String, org.eclipse.core.runtime.IProgressMonitor) | |
74 | */ | |
75 | @Override | |
76 | void enableFunctionProbe(String eventName, String probe, IProgressMonitor monitor) throws ExecutionException { | |
77 | fChannel.enableFunctionProbe(eventName, probe, monitor); | |
78 | } | |
79 | ||
80 | /* | |
81 | * (non-Javadoc) | |
82 | * @see org.eclipse.core.commands.AbstractHandler#isEnabled() | |
83 | */ | |
84 | @Override | |
85 | public boolean isEnabled() { | |
86 | // Get workbench page for the Control View | |
87 | IWorkbenchPage page = getWorkbenchPage(); | |
88 | if (page == null) { | |
89 | return false; | |
90 | } | |
91 | ||
92 | fChannel = null; | |
93 | ISelection selection = page.getSelection(ControlView.ID); | |
94 | if (selection instanceof StructuredSelection) { | |
95 | StructuredSelection structered = ((StructuredSelection) selection); | |
96 | for (Iterator<?> iterator = structered.iterator(); iterator.hasNext();) { | |
97 | Object element = (Object) iterator.next(); | |
98 | if (element instanceof TraceChannelComponent) { | |
99 | fChannel = (TraceChannelComponent) element; | |
100 | fSession = fChannel.getSession(); | |
101 | } | |
102 | } | |
103 | } | |
104 | return fChannel != null; | |
105 | } | |
106 | ||
107 | } |