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409bea20 | 1 | /******************************************************************************* |
897eaeb5 | 2 | * Copyright (c) 2014, 2016 Ericsson |
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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 | * Matthew Khouzam - Initial API and implementation | |
11 | *******************************************************************************/ | |
12 | ||
2bdf0193 | 13 | package org.eclipse.tracecompass.tmf.core.trace; |
409bea20 | 14 | |
897eaeb5 | 15 | import java.util.Collection; |
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16 | import java.util.HashSet; |
17 | import java.util.Set; | |
18 | ||
df2597e0 | 19 | import org.eclipse.jdt.annotation.NonNull; |
2bdf0193 | 20 | import org.eclipse.tracecompass.tmf.core.event.ITmfEventType; |
409bea20 | 21 | |
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22 | import com.google.common.collect.HashMultimap; |
23 | import com.google.common.collect.Multimap; | |
24 | ||
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25 | /** |
26 | * Set Helper for sets of ITmfTraceType | |
27 | * | |
28 | * TODO Remove once Java 8 is used (replace with Streams) | |
29 | * | |
30 | * @author Matthew Khouzam | |
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31 | */ |
32 | public final class TmfEventTypeCollectionHelper { | |
33 | ||
34 | private TmfEventTypeCollectionHelper() { | |
35 | } | |
36 | ||
37 | /** | |
38 | * Gets the event names from a collection of event types | |
39 | * | |
40 | * @param eventTypes | |
41 | * an iterable collection of ITmfEventTypes | |
42 | * @return a set of the names of these events, if some names are clashing | |
43 | * they will only appear once | |
44 | */ | |
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45 | public static Set<@NonNull String> getEventNames(Iterable<@NonNull ? extends ITmfEventType> eventTypes) { |
46 | Set<@NonNull String> retSet = new HashSet<>(); | |
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47 | for (ITmfEventType eventType : eventTypes) { |
48 | retSet.add(eventType.getName()); | |
49 | } | |
50 | return retSet; | |
51 | } | |
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52 | |
53 | /** | |
54 | * Gets a map from event name to a collection of field names from a | |
55 | * collection of event types | |
56 | * | |
57 | * @param eventTypes | |
58 | * an iterable collection of ITmfEventTypes | |
59 | * @return a set of the names of these events, if some event names are | |
60 | * clashing they will only appear once | |
61 | * @since 2.0 | |
62 | */ | |
63 | public static Multimap<@NonNull String, @NonNull String> getEventFieldNames(Iterable<@NonNull ? extends ITmfEventType> eventTypes) { | |
64 | Multimap<@NonNull String, @NonNull String> retMap = HashMultimap.create(); | |
65 | eventTypes.forEach(eventType -> { | |
66 | Collection<String> collection = eventType.getFieldNames(); | |
67 | if (collection != null) { | |
68 | collection.forEach(field -> { | |
69 | if (field != null) { | |
70 | retMap.put(eventType.getName(), field); | |
71 | } | |
72 | }); | |
73 | } | |
74 | }); | |
75 | return retMap; | |
76 | } | |
77 | ||
409bea20 | 78 | } |