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378e7718 | 1 | /******************************************************************************* |
c8422608 | 2 | * Copyright (c) 2009, 2013 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; |
6c13869b FC |
21 | import org.eclipse.linuxtools.tmf.core.request.ITmfDataRequest; |
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; | |
0316808c | 25 | import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace; |
6e512b93 | 26 | |
378e7718 | 27 | /** |
95aa81ef JCK |
28 | * Class to request events for given time range from a trace to fill a |
29 | * HistogramDataModel and HistogramView. | |
20ff3b75 | 30 | * |
b544077e BH |
31 | * @version 1.0 |
32 | * @author Francois Chouinard | |
95aa81ef | 33 | * <p> |
378e7718 | 34 | */ |
6256d8ad | 35 | public class HistogramRequest extends TmfEventRequest { |
c392540b FC |
36 | |
37 | // ------------------------------------------------------------------------ | |
38 | // Attributes | |
39 | // ------------------------------------------------------------------------ | |
40 | ||
b544077e BH |
41 | /** |
42 | * The histogram data model to fill. | |
43 | */ | |
fbd124dd | 44 | protected final HistogramDataModel fHistogram; |
c392540b | 45 | |
95aa81ef JCK |
46 | private final boolean fFullRange; |
47 | ||
c392540b FC |
48 | // ------------------------------------------------------------------------ |
49 | // Constructor | |
50 | // ------------------------------------------------------------------------ | |
51 | ||
b544077e BH |
52 | /** |
53 | * Constructor | |
20ff3b75 AM |
54 | * |
55 | * @param histogram | |
56 | * The histogram data model | |
57 | * @param range | |
58 | * The time range to request data | |
59 | * @param rank | |
60 | * The index of the first event to retrieve | |
61 | * @param nbEvents | |
62 | * The number of events requested | |
63 | * @param blockSize | |
64 | * The number of events per block | |
65 | * @param execType | |
66 | * The requested execution priority | |
3bd46eef | 67 | * @since 2.0 |
20ff3b75 | 68 | * |
b544077e | 69 | */ |
95aa81ef | 70 | @Deprecated |
20ff3b75 AM |
71 | public HistogramRequest(HistogramDataModel histogram, TmfTimeRange range, |
72 | int rank, int nbEvents, int blockSize, | |
73 | ITmfDataRequest.ExecutionType execType) { | |
74 | super(ITmfEvent.class, range, rank, nbEvents, | |
75 | (blockSize > 0) ? blockSize : ITmfTrace.DEFAULT_TRACE_CACHE_SIZE, | |
76 | execType); | |
c392540b | 77 | fHistogram = histogram; |
95aa81ef JCK |
78 | if (execType == ExecutionType.FOREGROUND) { |
79 | fFullRange = false; | |
80 | } else { | |
81 | fFullRange = true; | |
82 | } | |
83 | } | |
84 | ||
85 | /** | |
86 | * Constructor | |
87 | * | |
88 | * @param histogram | |
89 | * The histogram data model | |
90 | * @param range | |
91 | * The time range to request data | |
92 | * @param rank | |
93 | * The index of the first event to retrieve | |
94 | * @param nbEvents | |
95 | * The number of events requested | |
96 | * @param blockSize | |
97 | * The number of events per block | |
98 | * @param execType | |
99 | * The requested execution priority | |
100 | * @param fullRange | |
101 | * Full range or time range for histogram request | |
102 | * @since 2.1 | |
103 | * | |
104 | */ | |
105 | public HistogramRequest(HistogramDataModel histogram, TmfTimeRange range, | |
106 | int rank, int nbEvents, int blockSize, | |
107 | ITmfDataRequest.ExecutionType execType, boolean fullRange) { | |
108 | super(ITmfEvent.class, range, rank, nbEvents, | |
109 | (blockSize > 0) ? blockSize : ITmfTrace.DEFAULT_TRACE_CACHE_SIZE, | |
110 | execType); | |
111 | fHistogram = histogram; | |
112 | fFullRange = fullRange; | |
c392540b FC |
113 | } |
114 | ||
c392540b FC |
115 | // ------------------------------------------------------------------------ |
116 | // TmfEventRequest | |
117 | // ------------------------------------------------------------------------ | |
20ff3b75 | 118 | |
b544077e BH |
119 | /** |
120 | * Handle the event from the trace by updating the histogram data model. | |
20ff3b75 | 121 | * |
95aa81ef JCK |
122 | * @param event |
123 | * a event from the trace | |
b544077e BH |
124 | * @see org.eclipse.linuxtools.tmf.core.request.TmfDataRequest#handleData(org.eclipse.linuxtools.tmf.core.event.ITmfEvent) |
125 | */ | |
c392540b | 126 | @Override |
e0752744 | 127 | public void handleData(ITmfEvent event) { |
c392540b | 128 | super.handleData(event); |
cb866e08 | 129 | if (event != null) { |
95aa81ef JCK |
130 | if (event instanceof ITmfLostEvent) { |
131 | ITmfLostEvent lostEvents = (ITmfLostEvent) event; | |
132 | /* clear the old data when it is a new request */ | |
133 | fHistogram.countLostEvent(lostEvents.getTimeRange(), lostEvents.getNbLostEvents(), fFullRange); | |
134 | ||
135 | } else { /* handle lost event */ | |
136 | long timestamp = event.getTimestamp().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue(); | |
137 | fHistogram.countEvent(getNbRead(), timestamp); | |
138 | } | |
7ef9ae3f | 139 | } |
6e512b93 | 140 | } |
c392540b | 141 | |
b544077e | 142 | /** |
95aa81ef JCK |
143 | * Complete the request. It also notifies the histogram model about the |
144 | * completion. | |
20ff3b75 | 145 | * |
b544077e BH |
146 | * @see org.eclipse.linuxtools.tmf.core.request.TmfDataRequest#handleCompleted() |
147 | */ | |
6e512b93 | 148 | @Override |
5419a136 | 149 | public void handleCompleted() { |
fbd124dd | 150 | fHistogram.complete(); |
c392540b | 151 | super.handleCompleted(); |
6e512b93 | 152 | } |
6e512b93 | 153 | } |