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1 | /******************************************************************************* |
2 | * Copyright (c) 2012 Ericsson | |
3 | * Copyright (c) 2010, 2011 École Polytechnique de Montréal | |
4 | * Copyright (c) 2010, 2011 Alexandre Montplaisir <alexandre.montplaisir@gmail.com> | |
5df842b3 | 5 | * |
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6 | * All rights reserved. This program and the accompanying materials are |
7 | * made available under the terms of the Eclipse Public License v1.0 which | |
8 | * accompanies this distribution, and is available at | |
9 | * http://www.eclipse.org/legal/epl-v10.html | |
5df842b3 | 10 | * |
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11 | *******************************************************************************/ |
12 | ||
13 | package org.eclipse.linuxtools.tmf.core.interval; | |
14 | ||
15 | import org.eclipse.linuxtools.tmf.core.statevalue.ITmfStateValue; | |
16 | ||
17 | /** | |
18 | * The StateInterval represents the "state" a particular attribute was in, at a | |
19 | * given time. It is the main object being returned from queries to the state | |
20 | * system. | |
5df842b3 | 21 | * |
a52fde77 | 22 | |
5df842b3 | 23 | * |
a52fde77 | 24 | * @author alexmont |
5df842b3 | 25 | * |
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26 | */ |
27 | public final class TmfStateInterval implements ITmfStateInterval { | |
28 | ||
29 | private final long start; | |
30 | private final long end; | |
31 | private final int attribute; | |
32 | private final ITmfStateValue sv; | |
33 | ||
34 | /** | |
35 | * Construct an interval from its given parameters | |
5df842b3 | 36 | * |
a52fde77 | 37 | * @param start |
5df842b3 | 38 | * Start time |
a52fde77 | 39 | * @param end |
5df842b3 | 40 | * End time |
a52fde77 | 41 | * @param attribute |
5df842b3 | 42 | * Attribute linked to this interval |
a52fde77 | 43 | * @param sv |
5df842b3 | 44 | * State value this interval will contain |
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45 | */ |
46 | public TmfStateInterval(long start, long end, int attribute, | |
47 | ITmfStateValue sv) { | |
48 | this.start = start; | |
49 | this.end = end; | |
50 | this.attribute = attribute; | |
51 | this.sv = sv; | |
52 | } | |
53 | ||
54 | @Override | |
55 | public long getStartTime() { | |
56 | return start; | |
57 | } | |
58 | ||
59 | @Override | |
60 | public long getEndTime() { | |
61 | return end; | |
62 | } | |
63 | ||
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64 | @Override |
65 | public long getViewerEndTime() { | |
66 | return end + 1; | |
67 | } | |
68 | ||
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69 | @Override |
70 | public int getAttribute() { | |
71 | return attribute; | |
72 | } | |
73 | ||
74 | @Override | |
75 | public ITmfStateValue getStateValue() { | |
76 | return sv; | |
77 | } | |
78 | ||
79 | @Override | |
80 | public boolean intersects(long timestamp) { | |
81 | if (start <= timestamp) { | |
82 | if (end >= timestamp) { | |
83 | return true; | |
84 | } | |
85 | } | |
86 | return false; | |
87 | } | |
88 | ||
89 | @Override | |
90 | public String toString() { | |
91 | /* Only used for debugging */ | |
92 | StringBuffer buf = new StringBuffer(start + " to "); //$NON-NLS-1$ | |
93 | buf.append(end + ' '); | |
94 | buf.append(String.format("key = %4d, ", attribute)); //$NON-NLS-1$ | |
95 | buf.append("value = " + sv.toString()); //$NON-NLS-1$ | |
96 | return buf.toString(); | |
97 | } | |
98 | ||
99 | } |