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8c8bf09f | 1 | /******************************************************************************* |
12c155f5 | 2 | * Copyright (c) 2009, 2011 Ericsson |
8c8bf09f ASL |
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 | * Francois Chouinard - Initial API and implementation | |
11 | *******************************************************************************/ | |
12 | ||
13 | package org.eclipse.linuxtools.tmf.trace; | |
14 | ||
12c155f5 FC |
15 | import java.io.FileNotFoundException; |
16 | ||
17 | import org.eclipse.core.resources.IProject; | |
ff4ed569 | 18 | import org.eclipse.linuxtools.tmf.component.ITmfComponent; |
8c8bf09f ASL |
19 | import org.eclipse.linuxtools.tmf.event.TmfEvent; |
20 | import org.eclipse.linuxtools.tmf.event.TmfTimeRange; | |
21 | import org.eclipse.linuxtools.tmf.event.TmfTimestamp; | |
22 | ||
23 | /** | |
146a887c | 24 | * <b><u>ITmfTrace</u></b> |
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25 | * <p> |
26 | */ | |
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27 | public interface ITmfTrace<T extends TmfEvent> extends ITmfComponent { |
28 | ||
29 | // initTrace variants | |
30 | public void initTrace(String path, Class<T> eventType) throws FileNotFoundException; | |
31 | ||
32 | public void initTrace(String path, Class<T> eventType, int cacheSize) throws FileNotFoundException; | |
33 | ||
34 | public void initTrace(String path, Class<T> eventType, boolean indexTrace) throws FileNotFoundException; | |
35 | ||
36 | public void initTrace(String path, Class<T> eventType, int cacheSize, boolean indexTrace) throws FileNotFoundException; | |
37 | ||
38 | // Trace type validation | |
39 | public boolean validate(IProject project, String path); | |
40 | ||
41 | public ITmfTrace<T> copy(); | |
b0a282fb | 42 | |
abfad0aa | 43 | /** |
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44 | * @return the trace path |
45 | */ | |
46 | public String getPath(); | |
47 | ||
48 | /** | |
49 | * @return the trace name | |
50 | */ | |
51 | @Override | |
52 | public String getName(); | |
53 | ||
54 | /** | |
55 | * @return the cache size | |
abfad0aa FC |
56 | */ |
57 | public int getCacheSize(); | |
58 | ||
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59 | /** |
60 | * @return the number of events in the trace | |
61 | */ | |
62 | public long getNbEvents(); | |
63 | ||
64 | /** | |
65 | * Trace time range accesses | |
66 | */ | |
67 | public TmfTimeRange getTimeRange(); | |
68 | ||
146a887c | 69 | public TmfTimestamp getStartTime(); |
12c155f5 | 70 | |
146a887c | 71 | public TmfTimestamp getEndTime(); |
62d1696a | 72 | |
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73 | /** |
74 | * Positions the trace at the first event with the specified timestamp or index (i.e. the nth event in the trace). | |
4e3aa37d FC |
75 | * |
76 | * Returns a context which can later be used to read the event. | |
8c8bf09f | 77 | * |
12c155f5 FC |
78 | * @param location |
79 | * @param timestamp | |
80 | * @param rank | |
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81 | * @return a context object for subsequent reads |
82 | */ | |
452ad365 | 83 | public TmfContext seekLocation(ITmfLocation<?> location); |
12c155f5 | 84 | |
9f584e4c | 85 | public TmfContext seekEvent(TmfTimestamp timestamp); |
12c155f5 | 86 | |
9f584e4c | 87 | public TmfContext seekEvent(long rank); |
146a887c | 88 | |
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89 | /** |
90 | * Positions the trace at the event located at the specified ratio. | |
91 | * | |
92 | * Returns a context which can later be used to read the event. | |
93 | * | |
12c155f5 FC |
94 | * @param ratio |
95 | * a floating-point number between 0.0 (beginning) and 1.0 (end) | |
c76c54bb FC |
96 | * @return a context object for subsequent reads |
97 | */ | |
98 | public TmfContext seekLocation(double ratio); | |
12c155f5 | 99 | |
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100 | /** |
101 | * Returns the ratio corresponding to the specified location. | |
102 | * | |
12c155f5 FC |
103 | * @param location |
104 | * a trace location | |
c76c54bb FC |
105 | * @return a floating-point number between 0.0 (beginning) and 1.0 (end) |
106 | */ | |
107 | public double getLocationRatio(ITmfLocation<?> location); | |
12c155f5 | 108 | |
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109 | public ITmfLocation<?> getCurrentLocation(); |
110 | ||
abfad0aa | 111 | /** |
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112 | * Returns the rank of the first event with the requested timestamp. If none, returns the index of the next event |
113 | * (if any). | |
114 | * | |
abfad0aa FC |
115 | * @param timestamp |
116 | * @return | |
117 | */ | |
118 | public long getRank(TmfTimestamp timestamp); | |
12c155f5 | 119 | |
146a887c | 120 | /** |
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121 | * Return the event pointed by the supplied context (or null if no event left) and updates the context to the next |
122 | * event. | |
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123 | * |
124 | * @return the next event in the stream | |
125 | */ | |
9f584e4c | 126 | public TmfEvent getNextEvent(TmfContext context); |
62d1696a | 127 | |
e31e01e8 | 128 | /** |
12c155f5 | 129 | * Return the event pointed by the supplied context (or null if no event left) and *does not* update the context. |
e31e01e8 FC |
130 | * |
131 | * @return the next event in the stream | |
132 | */ | |
9f584e4c | 133 | public TmfEvent parseEvent(TmfContext context); |
e31e01e8 | 134 | |
8c8bf09f | 135 | } |