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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 | * Alexandre Montplaisir - Initial API and implementation | |
11 | ******************************************************************************/ | |
12 | ||
13 | package org.eclipse.linuxtools.lttng2.kernel.core.trace; | |
14 | ||
15 | import java.io.File; | |
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16 | |
17 | import org.eclipse.core.resources.IProject; | |
5e4bf87d | 18 | import org.eclipse.core.resources.IResource; |
e12ecd30 | 19 | import org.eclipse.core.runtime.CoreException; |
dc0f7bfe | 20 | import org.eclipse.linuxtools.internal.lttng2.kernel.core.stateprovider.CtfKernelStateInput; |
e12ecd30 | 21 | import org.eclipse.linuxtools.tmf.core.TmfCommonConstants; |
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22 | import org.eclipse.linuxtools.tmf.core.ctfadaptor.CtfTmfTrace; |
23 | import org.eclipse.linuxtools.tmf.core.exceptions.TmfTraceException; | |
18ab1d18 | 24 | import org.eclipse.linuxtools.tmf.core.statesystem.IStateChangeInput; |
6e71ce46 | 25 | import org.eclipse.linuxtools.tmf.core.statesystem.StateSystemManager; |
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26 | |
27 | /** | |
28 | * This is the specification of CtfTmfTrace for use with LTTng 2.x kernel | |
29 | * traces. It uses the CtfKernelStateInput to generate the state history. | |
d85d2a6d | 30 | * |
11d6f468 | 31 | * @author alexmont |
d85d2a6d | 32 | * |
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33 | */ |
34 | public class CtfKernelTrace extends CtfTmfTrace { | |
35 | ||
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36 | /** |
37 | * The file name of the History Tree | |
38 | */ | |
39 | public final static String HISTORY_TREE_FILE_NAME = "stateHistory.ht"; //$NON-NLS-1$ | |
6752f420 | 40 | |
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41 | /** |
42 | * Default constructor | |
43 | */ | |
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44 | public CtfKernelTrace() { |
45 | super(); | |
46 | } | |
47 | ||
48 | @Override | |
49 | public boolean validate(final IProject project, final String path) { | |
50 | if (!super.validate(project, path)) { | |
51 | return false; | |
52 | } | |
f483ae24 | 53 | /* Add extra checks specific to kernel traces here */ |
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54 | return true; |
55 | } | |
56 | ||
57 | @Override | |
58 | protected void buildStateSystem() throws TmfTraceException { | |
59 | /* Set up the path to the history tree file we'll use */ | |
6e71ce46 | 60 | IResource resource = this.getResource(); |
d85d2a6d | 61 | String supplDirectory = null; |
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62 | |
63 | try { | |
64 | // get the directory where the history file will be stored. | |
65 | supplDirectory = resource.getPersistentProperty(TmfCommonConstants.TRACE_SUPPLEMENTARY_FOLDER); | |
66 | } catch (CoreException e) { | |
9fa32496 | 67 | throw new TmfTraceException(e.toString(), e); |
e12ecd30 BH |
68 | } |
69 | ||
70 | final File htFile = new File(supplDirectory + File.separator + HISTORY_TREE_FILE_NAME); | |
6e71ce46 | 71 | final IStateChangeInput htInput = new CtfKernelStateInput(this); |
11d6f468 | 72 | |
51e216bd | 73 | this.ss = StateSystemManager.loadStateHistory(htFile, htInput, false); |
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74 | } |
75 | } |