1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.data.conflict;
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3 |
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4 | import java.util.Map;
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5 | import java.util.Objects;
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6 |
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7 | import org.openstreetmap.josm.data.osm.OsmPrimitive;
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8 | import org.openstreetmap.josm.data.osm.PrimitiveId;
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9 |
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10 | /**
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11 | * Represents a conflict between two {@link OsmPrimitive}s. It is represented as
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12 | * a pair of {@link OsmPrimitive}s where one element of the pair has the role <em>my</em>
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13 | * and the other has the role <em>their</em>.
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14 | * <ul>
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15 | * <li><code>my</code> is the {@link OsmPrimitive} in the local dataset</li>
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16 | * <li><code>their</code> is the {@link OsmPrimitive} which caused the conflict when it
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17 | * it was tried to merge it onto <code>my</code>. <code>their</code> is usually the
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18 | * {@link OsmPrimitive} from the dataset in another layer or the one retrieved from the server.</li>
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19 | * </ul>
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20 | * @param <T> primitive type of the conflict
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21 | * @since 1750
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22 | */
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23 | public class Conflict<T extends OsmPrimitive> {
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24 | private final T my;
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25 | private final T their;
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26 | private final boolean isMyDeleted;
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27 |
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28 | // mergedMap is only set if the conflict results from merging two layers
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29 | private Map<PrimitiveId, PrimitiveId> mergedMap;
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30 |
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31 | public Conflict(T my, T their) {
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32 | this(my, their, false);
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33 | }
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34 |
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35 | public Conflict(T my, T their, boolean isMyDeleted) {
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36 | this.my = my;
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37 | this.their = their;
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38 | this.isMyDeleted = isMyDeleted;
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39 | }
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40 |
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41 | public T getMy() {
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42 | return my;
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43 | }
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44 |
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45 | public T getTheir() {
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46 | return their;
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47 | }
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48 |
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49 | public boolean isMatchingMy(OsmPrimitive my) {
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50 | return this.my == my;
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51 | }
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52 |
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53 | public boolean isMatchingTheir(OsmPrimitive their) {
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54 | return this.their == their;
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55 | }
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56 |
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57 | /**
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58 | * Replies true if the primitive <code>primitive</code> is participating
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59 | * in this conflict
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60 | *
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61 | * @param primitive the primitive
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62 | * @return true if the primitive <code>primitive</code> is participating
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63 | * in this conflict
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64 | */
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65 | public boolean isParticipating(OsmPrimitive primitive) {
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66 | if (primitive == null) return false;
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67 | return primitive.getPrimitiveId().equals(my.getPrimitiveId())
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68 | || primitive.getPrimitiveId().equals(their.getPrimitiveId());
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69 | }
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70 |
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71 | /**
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72 | * Replies true if the primitive with id <code>id</code> is participating
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73 | * in this conflict
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74 | *
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75 | * @param id the primitive id
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76 | * @return true if the primitive <code>primitive</code> is participating
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77 | * in this conflict
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78 | */
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79 | public boolean isParticipating(PrimitiveId id) {
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80 | if (id == null) return false;
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81 | return id.equals(my.getPrimitiveId())
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82 | || id.equals(their.getPrimitiveId());
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83 | }
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84 |
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85 | @Override
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86 | public int hashCode() {
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87 | return Objects.hash(my, their);
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88 | }
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89 |
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90 | @Override
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91 | public boolean equals(Object obj) {
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92 | if (this == obj) return true;
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93 | if (obj == null || getClass() != obj.getClass()) return false;
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94 | Conflict<?> conflict = (Conflict<?>) obj;
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95 | return Objects.equals(my, conflict.my) &&
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96 | Objects.equals(their, conflict.their);
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97 | }
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98 |
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99 | /**
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100 | *
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101 | * @return True if my primitive was deleted but it has set non deleted status because it's referred by another
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102 | * primitive and references to deleted primitives are not allowed.
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103 | */
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104 | public boolean isMyDeleted() {
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105 | return isMyDeleted;
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106 | }
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107 |
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108 | public final Map<PrimitiveId, PrimitiveId> getMergedMap() {
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109 | return mergedMap;
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110 | }
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111 |
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112 | public final void setMergedMap(Map<PrimitiveId, PrimitiveId> mergedMap) {
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113 | this.mergedMap = mergedMap;
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114 | }
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115 |
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116 | @Override
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117 | public String toString() {
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118 | return "Conflict [my=" + my + ", their=" + their + ']';
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119 | }
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120 | }
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