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1 | /******************************************************************************* |
2 | * Copyright (c) 2015, 2016 EfficiOS Inc., Alexandre Montplaisir | |
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 | ||
10 | package org.eclipse.tracecompass.internal.provisional.analysis.lami.core.module; | |
11 | ||
12 | import static org.eclipse.tracecompass.common.core.NonNullUtils.checkNotNull; | |
13 | ||
14 | import java.util.List; | |
15 | import java.util.Optional; | |
16 | import java.util.stream.Collectors; | |
17 | ||
18 | import org.eclipse.jdt.annotation.NonNull; | |
19 | import org.eclipse.jdt.annotation.Nullable; | |
20 | import org.eclipse.tracecompass.internal.provisional.analysis.lami.core.types.LamiData; | |
21 | import org.eclipse.tracecompass.internal.provisional.analysis.lami.core.types.LamiTimeRange; | |
22 | import org.eclipse.tracecompass.internal.provisional.analysis.lami.core.types.LamiTimestamp; | |
23 | ||
24 | import com.google.common.collect.ImmutableList; | |
25 | ||
26 | /** | |
27 | * Entry of a LAMI output. Usually corresponds to one row in a JSON LAMI table | |
28 | * output. | |
29 | * | |
30 | * @author Alexandre Montplaisir | |
31 | */ | |
32 | public class LamiTableEntry { | |
33 | ||
34 | private final List<LamiData> fValues; | |
35 | ||
36 | /** | |
37 | * Constructor | |
38 | * | |
39 | * @param values Values contained in this row | |
40 | */ | |
41 | public LamiTableEntry(List<LamiData> values) { | |
42 | fValues = checkNotNull(ImmutableList.copyOf(values)); | |
43 | } | |
44 | ||
45 | /** | |
46 | * Get the value at a given index | |
47 | * | |
48 | * @param index | |
49 | * Index to look at | |
50 | * @return The value at this index | |
51 | */ | |
52 | public LamiData getValue(int index) { | |
53 | return fValues.get(index); | |
54 | } | |
55 | ||
56 | /** | |
57 | * Get the time range represented by this row. | |
58 | * | |
59 | * If more than one exists, one of them (usually the first) is returned. | |
60 | * | |
61 | * If there are no time ranges in this row, null is returned. | |
62 | * | |
63 | * @return The time range of this row | |
64 | */ | |
65 | public @Nullable LamiTimeRange getCorrespondingTimeRange() { | |
66 | /* | |
67 | * If there is one or more time range(s) in the values, return the first | |
68 | * one we find directly. | |
69 | */ | |
70 | Optional<LamiTimeRange> oTimerange = fValues.stream() | |
71 | .filter(data -> (data instanceof LamiTimeRange)) | |
72 | .<@NonNull LamiTimeRange> map(data -> (LamiTimeRange) data) | |
73 | .findFirst(); | |
74 | if (oTimerange.isPresent()) { | |
75 | return oTimerange.get(); | |
76 | } | |
77 | ||
78 | /* Look for individual timestamps instead */ | |
79 | List<LamiTimestamp> timestamps = fValues.stream() | |
80 | .filter(data -> (data instanceof LamiTimestamp)) | |
81 | .<@NonNull LamiTimestamp> map(data -> (LamiTimestamp) data) | |
82 | .collect(Collectors.toList()); | |
83 | ||
84 | if (timestamps.size() > 1) { | |
85 | /* We can try using the first two timestamps to create a range (making sure it's valid) */ | |
86 | long first = timestamps.get(0).getValue(); | |
87 | long second = timestamps.get(1).getValue(); | |
88 | if (second >= first) { | |
89 | return new LamiTimeRange(first, second); | |
90 | } | |
91 | } | |
92 | ||
93 | if (!timestamps.isEmpty()) { | |
94 | /* If there is only one timestamp, use it to create a punctual range */ | |
95 | long ts = timestamps.get(0).getValue(); | |
96 | return new LamiTimeRange(ts, ts); | |
97 | } | |
98 | ||
99 | /* Didn't find any timestamp we can't use */ | |
100 | return null; | |
101 | } | |
102 | } |