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8c8bf09f | 1 | /******************************************************************************* |
0316808c | 2 | * Copyright (c) 2009, 2010, 2012 Ericsson |
ce2388e0 | 3 | * |
8c8bf09f ASL |
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 | |
ce2388e0 | 8 | * |
8c8bf09f ASL |
9 | * Contributors: |
10 | * Francois Chouinard - Initial API and implementation | |
0316808c | 11 | * Francois Chouinard - Put in shape for 1.0 |
8c8bf09f ASL |
12 | *******************************************************************************/ |
13 | ||
6c13869b | 14 | package org.eclipse.linuxtools.tmf.core.experiment; |
8c8bf09f | 15 | |
72f1e62a | 16 | import org.eclipse.linuxtools.tmf.core.event.ITmfEvent; |
34ccf9a9 | 17 | import org.eclipse.linuxtools.tmf.core.trace.ITmfContext; |
6c13869b | 18 | import org.eclipse.linuxtools.tmf.core.trace.ITmfLocation; |
6c13869b | 19 | import org.eclipse.linuxtools.tmf.core.trace.TmfContext; |
8c8bf09f ASL |
20 | |
21 | /** | |
0316808c | 22 | * The experiment context in TMF. |
8c8bf09f | 23 | * <p> |
cbdacf03 FC |
24 | * The experiment keeps track of the next event from each of its traces so it |
25 | * can pick the next one in chronological order. | |
8f50c396 | 26 | * <p> |
ce2388e0 FC |
27 | * This implies that the "next" event from each trace has already been |
28 | * read and that we at least know its timestamp. This doesn't imply that a | |
0316808c FC |
29 | * full parse of the event content was performed (read: the legacy LTTng works |
30 | * like this...). | |
8f50c396 | 31 | * <p> |
cbdacf03 FC |
32 | * The last trace refers to the trace from which the last event was "consumed" |
33 | * at the experiment level. | |
8c8bf09f | 34 | */ |
9f584e4c FC |
35 | public class TmfExperimentContext extends TmfContext { |
36 | ||
cbdacf03 FC |
37 | // ------------------------------------------------------------------------ |
38 | // Constants | |
39 | // ------------------------------------------------------------------------ | |
40 | ||
0316808c FC |
41 | /** |
42 | * No last trace read indicator | |
43 | */ | |
44 | static final int NO_TRACE = -1; | |
cbdacf03 FC |
45 | |
46 | // ------------------------------------------------------------------------ | |
47 | // Attributes | |
48 | // ------------------------------------------------------------------------ | |
49 | ||
0316808c | 50 | // private ITmfTrace<?>[] fTraces = new ITmfTrace[0]; |
cbdacf03 | 51 | private final ITmfContext[] fContexts; |
ce2388e0 | 52 | private ITmfEvent[] fEvents; |
cbdacf03 FC |
53 | private int lastTraceRead; |
54 | ||
55 | // ------------------------------------------------------------------------ | |
56 | // Constructors | |
57 | // ------------------------------------------------------------------------ | |
58 | ||
0316808c | 59 | public TmfExperimentContext(final ITmfContext[] contexts) { |
cbdacf03 | 60 | super(); |
0316808c | 61 | // fTraces = traces; |
cbdacf03 | 62 | fContexts = contexts; |
0316808c FC |
63 | fEvents = new ITmfEvent[fContexts.length]; |
64 | final ITmfLocation<?>[] locations = new ITmfLocation[fContexts.length]; | |
65 | final long[] ranks = new long[fContexts.length]; | |
cbdacf03 | 66 | long rank = 0; |
0316808c | 67 | for (int i = 0; i < fContexts.length; i++) |
cbdacf03 FC |
68 | if (contexts[i] != null) { |
69 | locations[i] = contexts[i].getLocation(); | |
70 | ranks[i] = contexts[i].getRank(); | |
71 | rank += contexts[i].getRank(); | |
72 | } | |
73 | ||
0316808c | 74 | setLocation(new TmfExperimentLocation(new TmfLocationArray(locations))); |
cbdacf03 FC |
75 | setRank(rank); |
76 | lastTraceRead = NO_TRACE; | |
77 | } | |
78 | ||
ce2388e0 | 79 | public TmfExperimentContext(final TmfExperimentContext other) { |
0316808c | 80 | this(other.cloneContexts()); |
ce2388e0 FC |
81 | fEvents = other.fEvents; |
82 | if (other.getLocation() != null) | |
83 | setLocation(other.getLocation().clone()); | |
84 | setRank(other.getRank()); | |
85 | setLastTrace(other.lastTraceRead); | |
86 | } | |
87 | ||
0316808c FC |
88 | // public TmfExperimentContext(final ITmfTrace<?>[] traces) { |
89 | // this(traces, new TmfContext[traces.length]); | |
90 | // } | |
cbdacf03 | 91 | |
ce2388e0 FC |
92 | private ITmfContext[] cloneContexts() { |
93 | final ITmfContext[] contexts = new ITmfContext[fContexts.length]; | |
94 | for (int i = 0; i < fContexts.length; i++) | |
95 | contexts[i] = fContexts[i].clone(); | |
96 | return contexts; | |
97 | } | |
98 | ||
99 | ||
100 | // public TmfExperimentContext(TmfExperimentContext other) { | |
101 | // this(other.fTraces, other.cloneContexts()); | |
102 | // fEvents = other.fEvents; | |
103 | // if (other.getLocation() != null) | |
104 | // setLocation(other.getLocation().clone()); | |
105 | // setRank(other.getRank()); | |
106 | // setLastTrace(other.lastTraceRead); | |
107 | // } | |
108 | ||
109 | // private ITmfContext[] cloneContexts() { | |
110 | // ITmfContext[] contexts = new TmfContext[fContexts.length]; | |
111 | // for (int i = 0; i < fContexts.length; i++) | |
112 | // contexts[i] = fContexts[i].clone(); | |
113 | // return contexts; | |
114 | // } | |
cbdacf03 FC |
115 | |
116 | // ------------------------------------------------------------------------ | |
117 | // Accessors | |
118 | // ------------------------------------------------------------------------ | |
119 | ||
0316808c FC |
120 | // public ITmfTrace<?>[] getTraces() { |
121 | // return fTraces; | |
122 | // } | |
cbdacf03 FC |
123 | |
124 | public ITmfContext[] getContexts() { | |
125 | return fContexts; | |
126 | } | |
127 | ||
128 | public ITmfEvent[] getEvents() { | |
129 | return fEvents; | |
130 | } | |
131 | ||
132 | public int getLastTrace() { | |
133 | return lastTraceRead; | |
134 | } | |
135 | ||
136 | public void setLastTrace(final int newIndex) { | |
137 | lastTraceRead = newIndex; | |
138 | } | |
139 | ||
140 | // ------------------------------------------------------------------------ | |
141 | // Object | |
142 | // ------------------------------------------------------------------------ | |
550d787e FC |
143 | |
144 | @Override | |
145 | public int hashCode() { | |
cbdacf03 | 146 | int result = 17; |
0316808c FC |
147 | for (int i = 0; i < fContexts.length; i++) { |
148 | // result = 37 * result + fTraces[i].hashCode(); | |
cbdacf03 FC |
149 | result = 37 * result + fContexts[i].hashCode(); |
150 | } | |
151 | return result; | |
550d787e | 152 | } |
cbdacf03 | 153 | |
550d787e | 154 | @Override |
cbdacf03 | 155 | public boolean equals(final Object other) { |
6e85c58d FC |
156 | if (this == other) |
157 | return true; | |
158 | if (!super.equals(other)) | |
159 | return false; | |
cbdacf03 FC |
160 | if (!(other instanceof TmfExperimentContext)) |
161 | return false; | |
162 | final TmfExperimentContext o = (TmfExperimentContext) other; | |
163 | boolean isEqual = true; | |
164 | int i = 0; | |
0316808c FC |
165 | while (isEqual && (i < fContexts.length)) { |
166 | // isEqual &= fTraces[i].equals(o.fTraces[i]); | |
cbdacf03 FC |
167 | isEqual &= fContexts[i].equals(o.fContexts[i]); |
168 | i++; | |
169 | } | |
170 | return isEqual; | |
550d787e | 171 | } |
cbdacf03 | 172 | |
8c8bf09f | 173 | } |