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1 | /******************************************************************************* |
2 | * Copyright (c) 2009, 2010, 2011 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 | * Francois Chouinard - Initial API and implementation | |
11 | *******************************************************************************/ | |
12 | ||
13 | package org.eclipse.linuxtools.tmf.ui.project.handlers; | |
14 | ||
15 | import java.io.FileNotFoundException; | |
16 | import java.util.List; | |
17 | ||
18 | import org.eclipse.core.commands.AbstractHandler; | |
19 | import org.eclipse.core.commands.ExecutionEvent; | |
20 | import org.eclipse.core.commands.ExecutionException; | |
21 | import org.eclipse.jface.viewers.ISelection; | |
1595249b | 22 | import org.eclipse.jface.viewers.ISelectionProvider; |
12c155f5 | 23 | import org.eclipse.jface.viewers.TreeSelection; |
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24 | import org.eclipse.linuxtools.tmf.core.event.TmfEvent; |
25 | import org.eclipse.linuxtools.tmf.core.experiment.TmfExperiment; | |
26 | import org.eclipse.linuxtools.tmf.core.signal.TmfExperimentSelectedSignal; | |
27 | import org.eclipse.linuxtools.tmf.core.signal.TmfSignalManager; | |
28 | import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace; | |
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29 | import org.eclipse.linuxtools.tmf.ui.project.model.TmfExperimentElement; |
30 | import org.eclipse.linuxtools.tmf.ui.project.model.TmfTraceElement; | |
31 | import org.eclipse.swt.widgets.MessageBox; | |
32 | import org.eclipse.ui.IWorkbenchPage; | |
33 | import org.eclipse.ui.IWorkbenchPart; | |
34 | import org.eclipse.ui.IWorkbenchWindow; | |
35 | import org.eclipse.ui.PlatformUI; | |
36 | ||
37 | /** | |
38 | * <b><u>OpenExperimentHandler</u></b> | |
39 | * <p> | |
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40 | */ |
41 | public class OpenExperimentHandler extends AbstractHandler { | |
42 | ||
43 | private TmfExperimentElement fExperiment = null; | |
44 | ||
45 | // ------------------------------------------------------------------------ | |
46 | // Validation | |
47 | // ------------------------------------------------------------------------ | |
48 | ||
49 | @Override | |
50 | public boolean isEnabled() { | |
51 | ||
52 | // Check if we are closing down | |
53 | IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow(); | |
54 | if (window == null) | |
55 | return false; | |
56 | ||
57 | // Get the selection | |
58 | IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage(); | |
59 | IWorkbenchPart part = page.getActivePart(); | |
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60 | ISelectionProvider selectionProvider = part.getSite().getSelectionProvider(); |
61 | if (selectionProvider == null) | |
62 | return false; | |
63 | ISelection selection = selectionProvider.getSelection(); | |
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64 | |
65 | // Make sure there is only one selection and that it is an experiment | |
66 | fExperiment = null; | |
67 | if (selection instanceof TreeSelection) { | |
68 | TreeSelection sel = (TreeSelection) selection; | |
69 | // There should be only one item selected as per the plugin.xml | |
70 | Object element = sel.getFirstElement(); | |
71 | if (element instanceof TmfExperimentElement) { | |
72 | fExperiment = (TmfExperimentElement) element; | |
73 | } | |
74 | } | |
75 | ||
76 | // We only enable opening from the Traces folder for now | |
77 | return (fExperiment != null); | |
78 | } | |
79 | ||
80 | // ------------------------------------------------------------------------ | |
81 | // Execution | |
82 | // ------------------------------------------------------------------------ | |
83 | ||
84 | @SuppressWarnings({ "rawtypes", "unchecked" }) | |
85 | @Override | |
86 | public Object execute(ExecutionEvent event) throws ExecutionException { | |
87 | ||
88 | // Check if we are closing down | |
89 | IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow(); | |
90 | if (window == null) | |
91 | return false; | |
92 | ||
93 | // Close the current experiment, if any | |
94 | TmfExperiment<?> currentExperiment = TmfExperiment.getCurrentExperiment(); | |
95 | if (currentExperiment != null) { | |
96 | currentExperiment.dispose(); | |
97 | } | |
98 | ||
99 | // Instantiate the experiment's traces | |
100 | List<TmfTraceElement> traceEntries = fExperiment.getTraces(); | |
101 | int nbTraces = traceEntries.size(); | |
102 | ITmfTrace<?>[] traces = new ITmfTrace[nbTraces]; | |
103 | for (int i = 0; i < nbTraces; i++) { | |
104 | TmfTraceElement element = traceEntries.get(i); | |
105 | ITmfTrace trace = element.instantiateTrace(); | |
106 | TmfEvent traceEvent = element.instantiateEvent(); | |
107 | try { | |
108 | trace.initTrace(element.getLocation().getPath(), traceEvent.getClass()); | |
109 | } catch (FileNotFoundException e) { | |
110 | displayErrorMsg(""); //$NON-NLS-1$ | |
111 | } | |
112 | traces[i] = trace; | |
113 | } | |
114 | ||
115 | // Create the experiment and signal | |
c5b45b39 | 116 | TmfExperiment experiment = new TmfExperiment(traces[0].getClass(), fExperiment.getName(), traces, traces[0].getCacheSize()); |
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117 | TmfExperiment.setCurrentExperiment(experiment); |
118 | TmfSignalManager.dispatchSignal(new TmfExperimentSelectedSignal(this, experiment)); | |
119 | ||
120 | return null; | |
121 | } | |
122 | ||
123 | private void displayErrorMsg(String errorMsg) { | |
124 | MessageBox mb = new MessageBox(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell()); | |
125 | mb.setText(Messages.OpenTraceHandler_Title); | |
126 | mb.setMessage(errorMsg); | |
127 | mb.open(); | |
128 | } | |
129 | ||
130 | } |