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d0043318 GB |
1 | /******************************************************************************* |
2 | * Copyright (c) 2016 École Polytechnique de Montréal | |
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 | ||
10 | package org.eclipse.tracecompass.analysis.os.linux.core.inputoutput; | |
11 | ||
12 | import java.util.Collection; | |
13 | import java.util.Collections; | |
14 | import java.util.HashSet; | |
15 | import java.util.Set; | |
16 | ||
17 | import org.eclipse.tracecompass.statesystem.core.ITmfStateSystem; | |
18 | ||
19 | /** | |
20 | * Utility methods to return data from a {@link InputOutputAnalysisModule} | |
21 | * analysis. | |
22 | * | |
23 | * @author Geneviève Bastien | |
24 | * @author Houssem Daoud | |
d0043318 GB |
25 | */ |
26 | public final class InputOutputInformationProvider { | |
27 | ||
28 | private InputOutputInformationProvider() { | |
29 | ||
30 | } | |
31 | ||
32 | /** | |
33 | * Get the disks for an input/output analysis module | |
34 | * | |
35 | * @param module | |
36 | * The analysis module | |
37 | * @return A collection of disks from this analysis | |
38 | */ | |
39 | public static Collection<Disk> getDisks(InputOutputAnalysisModule module) { | |
40 | module.schedule(); | |
41 | if (!module.waitForInitialization()) { | |
42 | return Collections.EMPTY_SET; | |
43 | } | |
44 | ITmfStateSystem ss = module.getStateSystem(); | |
45 | if (ss == null) { | |
46 | throw new IllegalStateException("The state system should not be null at this point"); //$NON-NLS-1$ | |
47 | } | |
48 | ||
49 | Set<Disk> disks = new HashSet<>(); | |
50 | for (Integer diskQuark : ss.getQuarks(Attributes.DISKS, "*")) { //$NON-NLS-1$ | |
51 | String devName = ss.getAttributeName(diskQuark); | |
52 | disks.add(new Disk(Integer.parseInt(devName), ss, diskQuark)); | |
53 | } | |
54 | return disks; | |
55 | } | |
56 | } |