Commit | Line | Data |
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378e7718 | 1 | /******************************************************************************* |
576f0a4e | 2 | * Copyright (c) 2009, 2014 Ericsson |
20ff3b75 | 3 | * |
378e7718 WB |
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 | |
20ff3b75 | 8 | * |
378e7718 WB |
9 | * Contributors: |
10 | * William Bourque - Initial API and implementation | |
c392540b FC |
11 | * Yuriy Vashchuk - Heritage correction. |
12 | * Francois Chouinard - Cleanup and refactoring | |
e0752744 | 13 | * Francois Chouinard - Moved from LTTng to TMF |
95aa81ef | 14 | * Simon Delisle - Added a new parameter to the constructor |
378e7718 | 15 | *******************************************************************************/ |
c392540b | 16 | |
e0752744 | 17 | package org.eclipse.linuxtools.tmf.ui.views.histogram; |
6e512b93 | 18 | |
e0752744 | 19 | import org.eclipse.linuxtools.tmf.core.event.ITmfEvent; |
95aa81ef | 20 | import org.eclipse.linuxtools.tmf.core.event.ITmfLostEvent; |
fd3f1eff | 21 | import org.eclipse.linuxtools.tmf.core.request.ITmfEventRequest; |
6c13869b | 22 | import org.eclipse.linuxtools.tmf.core.request.TmfEventRequest; |
3bd46eef AM |
23 | import org.eclipse.linuxtools.tmf.core.timestamp.ITmfTimestamp; |
24 | import org.eclipse.linuxtools.tmf.core.timestamp.TmfTimeRange; | |
6e512b93 | 25 | |
378e7718 | 26 | /** |
95aa81ef JCK |
27 | * Class to request events for given time range from a trace to fill a |
28 | * HistogramDataModel and HistogramView. | |
20ff3b75 | 29 | * |
b544077e BH |
30 | * @version 1.0 |
31 | * @author Francois Chouinard | |
95aa81ef | 32 | * <p> |
378e7718 | 33 | */ |
6256d8ad | 34 | public class HistogramRequest extends TmfEventRequest { |
c392540b FC |
35 | |
36 | // ------------------------------------------------------------------------ | |
37 | // Attributes | |
38 | // ------------------------------------------------------------------------ | |
39 | ||
b544077e BH |
40 | /** |
41 | * The histogram data model to fill. | |
42 | */ | |
fbd124dd | 43 | protected final HistogramDataModel fHistogram; |
c392540b | 44 | |
95aa81ef JCK |
45 | private final boolean fFullRange; |
46 | ||
c392540b FC |
47 | // ------------------------------------------------------------------------ |
48 | // Constructor | |
49 | // ------------------------------------------------------------------------ | |
50 | ||
95aa81ef JCK |
51 | /** |
52 | * Constructor | |
53 | * | |
54 | * @param histogram | |
55 | * The histogram data model | |
56 | * @param range | |
57 | * The time range to request data | |
58 | * @param rank | |
59 | * The index of the first event to retrieve | |
60 | * @param nbEvents | |
61 | * The number of events requested | |
62 | * @param blockSize | |
63 | * The number of events per block | |
64 | * @param execType | |
65 | * The requested execution priority | |
66 | * @param fullRange | |
67 | * Full range or time range for histogram request | |
c4767854 | 68 | * @since 3.0 |
95aa81ef JCK |
69 | */ |
70 | public HistogramRequest(HistogramDataModel histogram, TmfTimeRange range, | |
71 | int rank, int nbEvents, int blockSize, | |
fd3f1eff | 72 | ITmfEventRequest.ExecutionType execType, boolean fullRange) { |
5cc0453a | 73 | super(ITmfEvent.class, range, rank, nbEvents, execType); |
95aa81ef JCK |
74 | fHistogram = histogram; |
75 | fFullRange = fullRange; | |
c392540b FC |
76 | } |
77 | ||
c392540b FC |
78 | // ------------------------------------------------------------------------ |
79 | // TmfEventRequest | |
80 | // ------------------------------------------------------------------------ | |
20ff3b75 | 81 | |
b544077e BH |
82 | /** |
83 | * Handle the event from the trace by updating the histogram data model. | |
20ff3b75 | 84 | * |
95aa81ef JCK |
85 | * @param event |
86 | * a event from the trace | |
fd3f1eff | 87 | * @see org.eclipse.linuxtools.tmf.core.request.TmfEventRequest#handleData(org.eclipse.linuxtools.tmf.core.event.ITmfEvent) |
b544077e | 88 | */ |
c392540b | 89 | @Override |
e0752744 | 90 | public void handleData(ITmfEvent event) { |
c392540b | 91 | super.handleData(event); |
cb866e08 | 92 | if (event != null) { |
95aa81ef JCK |
93 | if (event instanceof ITmfLostEvent) { |
94 | ITmfLostEvent lostEvents = (ITmfLostEvent) event; | |
95 | /* clear the old data when it is a new request */ | |
96 | fHistogram.countLostEvent(lostEvents.getTimeRange(), lostEvents.getNbLostEvents(), fFullRange); | |
97 | ||
98 | } else { /* handle lost event */ | |
99 | long timestamp = event.getTimestamp().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue(); | |
100 | fHistogram.countEvent(getNbRead(), timestamp); | |
101 | } | |
7ef9ae3f | 102 | } |
6e512b93 | 103 | } |
c392540b | 104 | |
b544077e | 105 | /** |
95aa81ef JCK |
106 | * Complete the request. It also notifies the histogram model about the |
107 | * completion. | |
20ff3b75 | 108 | * |
fd3f1eff | 109 | * @see org.eclipse.linuxtools.tmf.core.request.TmfEventRequest#handleCompleted() |
b544077e | 110 | */ |
6e512b93 | 111 | @Override |
5419a136 | 112 | public void handleCompleted() { |
fbd124dd | 113 | fHistogram.complete(); |
c392540b | 114 | super.handleCompleted(); |
6e512b93 | 115 | } |
6e512b93 | 116 | } |