1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.data.osm;
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3 |
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4 | import java.util.ArrayList;
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5 | import java.util.Collection;
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6 | import java.util.Collections;
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7 | import java.util.Date;
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8 | import java.util.HashMap;
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9 | import java.util.List;
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10 | import java.util.Map;
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11 | import java.util.Objects;
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12 | import java.util.Optional;
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13 |
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14 | import org.openstreetmap.josm.data.Bounds;
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15 | import org.openstreetmap.josm.data.coor.LatLon;
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16 | import org.openstreetmap.josm.tools.CheckParameterUtil;
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17 | import org.openstreetmap.josm.tools.date.DateUtils;
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18 |
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19 | /**
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20 | * Represents a single changeset in JOSM. For now its only used during
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21 | * upload but in the future we may do more.
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22 | * @since 625
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23 | */
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24 | public final class Changeset implements Tagged, Comparable<Changeset> {
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25 |
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26 | /** The maximum changeset tag length allowed by API 0.6 **/
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27 | public static final int MAX_CHANGESET_TAG_LENGTH = MAX_TAG_LENGTH;
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28 |
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29 | /** the changeset id */
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30 | private int id;
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31 | /** the user who owns the changeset */
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32 | private User user;
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33 | /** date this changeset was created at */
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34 | private Date createdAt;
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35 | /** the date this changeset was closed at*/
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36 | private Date closedAt;
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37 | /** indicates whether this changeset is still open or not */
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38 | private boolean open;
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39 | /** the min. coordinates of the bounding box of this changeset */
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40 | private LatLon min;
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41 | /** the max. coordinates of the bounding box of this changeset */
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42 | private LatLon max;
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43 | /** the number of comments for this changeset */
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44 | private int commentsCount;
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45 | /** the map of tags */
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46 | private Map<String, String> tags;
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47 | /** indicates whether this changeset is incomplete. For an incomplete changeset we only know its id */
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48 | private boolean incomplete;
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49 | /** the changeset content */
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50 | private ChangesetDataSet content;
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51 | /** the changeset discussion */
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52 | private List<ChangesetDiscussionComment> discussion;
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53 |
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54 | /**
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55 | * Creates a new changeset with id 0.
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56 | */
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57 | public Changeset() {
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58 | this(0);
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59 | }
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60 |
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61 | /**
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62 | * Creates a changeset with id <code>id</code>. If id > 0, sets incomplete to true.
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63 | *
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64 | * @param id the id
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65 | */
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66 | public Changeset(int id) {
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67 | this.id = id;
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68 | this.incomplete = id > 0;
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69 | this.tags = new HashMap<>();
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70 | }
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71 |
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72 | /**
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73 | * Creates a clone of <code>other</code>
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74 | *
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75 | * @param other the other changeset. If null, creates a new changeset with id 0.
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76 | */
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77 | public Changeset(Changeset other) {
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78 | if (other == null) {
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79 | this.id = 0;
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80 | this.tags = new HashMap<>();
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81 | } else if (other.isIncomplete()) {
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82 | setId(other.getId());
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83 | this.incomplete = true;
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84 | this.tags = new HashMap<>();
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85 | } else {
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86 | this.id = other.id;
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87 | mergeFrom(other);
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88 | this.incomplete = false;
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89 | }
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90 | }
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91 |
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92 | /**
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93 | * Creates a changeset with the data obtained from the given preset, i.e.,
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94 | * the {@link AbstractPrimitive#getChangesetId() changeset id}, {@link AbstractPrimitive#getUser() user}, and
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95 | * {@link AbstractPrimitive#getTimestamp() timestamp}.
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96 | * @param primitive the primitive to use
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97 | * @return the created changeset
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98 | */
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99 | public static Changeset fromPrimitive(final OsmPrimitive primitive) {
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100 | final Changeset changeset = new Changeset(primitive.getChangesetId());
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101 | changeset.setUser(primitive.getUser());
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102 | changeset.setCreatedAt(primitive.getTimestamp()); // not accurate in all cases
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103 | return changeset;
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104 | }
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105 |
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106 | /**
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107 | * Compares this changeset to another, based on their identifier.
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108 | * @param other other changeset
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109 | * @return the value {@code 0} if {@code getId() == other.getId()};
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110 | * a value less than {@code 0} if {@code getId() < other.getId()}; and
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111 | * a value greater than {@code 0} if {@code getId() > other.getId()}
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112 | */
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113 | @Override
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114 | public int compareTo(Changeset other) {
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115 | return Integer.compare(getId(), other.getId());
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116 | }
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117 |
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118 | /**
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119 | * Returns the changeset name.
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120 | * @return the changeset name (untranslated: "changeset <identifier>")
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121 | */
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122 | public String getName() {
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123 | // no translation
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124 | return "changeset " + getId();
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125 | }
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126 |
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127 | /**
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128 | * Returns the changeset display name, as per given name formatter.
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129 | * @param formatter name formatter
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130 | * @return the changeset display name, as per given name formatter
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131 | */
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132 | public String getDisplayName(NameFormatter formatter) {
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133 | return formatter.format(this);
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134 | }
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135 |
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136 | /**
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137 | * Returns the changeset identifier.
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138 | * @return the changeset identifier
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139 | */
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140 | public int getId() {
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141 | return id;
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142 | }
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143 |
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144 | /**
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145 | * Sets the changeset identifier.
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146 | * @param id changeset identifier
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147 | */
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148 | public void setId(int id) {
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149 | this.id = id;
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150 | }
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151 |
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152 | /**
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153 | * Returns the changeset user.
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154 | * @return the changeset user
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155 | */
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156 | public User getUser() {
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157 | return user;
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158 | }
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159 |
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160 | /**
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161 | * Sets the changeset user.
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162 | * @param user changeset user
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163 | */
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164 | public void setUser(User user) {
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165 | this.user = user;
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166 | }
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167 |
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168 | /**
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169 | * Returns the changeset creation date.
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170 | * @return the changeset creation date
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171 | */
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172 | public Date getCreatedAt() {
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173 | return DateUtils.cloneDate(createdAt);
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174 | }
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175 |
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176 | /**
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177 | * Sets the changeset creation date.
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178 | * @param createdAt changeset creation date
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179 | */
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180 | public void setCreatedAt(Date createdAt) {
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181 | this.createdAt = DateUtils.cloneDate(createdAt);
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182 | }
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183 |
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184 | /**
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185 | * Returns the changeset closure date.
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186 | * @return the changeset closure date
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187 | */
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188 | public Date getClosedAt() {
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189 | return DateUtils.cloneDate(closedAt);
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190 | }
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191 |
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192 | /**
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193 | * Sets the changeset closure date.
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194 | * @param closedAt changeset closure date
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195 | */
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196 | public void setClosedAt(Date closedAt) {
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197 | this.closedAt = DateUtils.cloneDate(closedAt);
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198 | }
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199 |
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200 | /**
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201 | * Determines if this changeset is open.
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202 | * @return {@code true} if this changeset is open
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203 | */
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204 | public boolean isOpen() {
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205 | return open;
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206 | }
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207 |
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208 | /**
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209 | * Sets whether this changeset is open.
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210 | * @param open {@code true} if this changeset is open
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211 | */
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212 | public void setOpen(boolean open) {
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213 | this.open = open;
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214 | }
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215 |
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216 | /**
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217 | * Returns the min lat/lon of the changeset bounding box.
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218 | * @return the min lat/lon of the changeset bounding box
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219 | */
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220 | public LatLon getMin() {
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221 | return min;
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222 | }
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223 |
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224 | /**
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225 | * Sets the min lat/lon of the changeset bounding box.
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226 | * @param min min lat/lon of the changeset bounding box
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227 | */
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228 | public void setMin(LatLon min) {
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229 | this.min = min;
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230 | }
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231 |
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232 | /**
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233 | * Returns the max lat/lon of the changeset bounding box.
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234 | * @return the max lat/lon of the changeset bounding box
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235 | */
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236 | public LatLon getMax() {
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237 | return max;
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238 | }
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239 |
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240 | /**
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241 | * Sets the max lat/lon of the changeset bounding box.
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242 | * @param max min lat/lon of the changeset bounding box
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243 | */
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244 | public void setMax(LatLon max) {
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245 | this.max = max;
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246 | }
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247 |
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248 | /**
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249 | * Returns the changeset bounding box.
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250 | * @return the changeset bounding box
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251 | */
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252 | public Bounds getBounds() {
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253 | if (min != null && max != null)
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254 | return new Bounds(min, max);
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255 | return null;
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256 | }
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257 |
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258 | /**
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259 | * Replies this changeset comment.
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260 | * @return this changeset comment (empty string if missing)
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261 | * @since 12494
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262 | */
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263 | public String getComment() {
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264 | return Optional.ofNullable(get("comment")).orElse("");
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265 | }
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266 |
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267 | /**
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268 | * Replies the number of comments for this changeset discussion.
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269 | * @return the number of comments for this changeset discussion
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270 | * @since 7700
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271 | */
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272 | public int getCommentsCount() {
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273 | return commentsCount;
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274 | }
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275 |
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276 | /**
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277 | * Sets the number of comments for this changeset discussion.
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278 | * @param commentsCount the number of comments for this changeset discussion
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279 | * @since 7700
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280 | */
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281 | public void setCommentsCount(int commentsCount) {
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282 | this.commentsCount = commentsCount;
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283 | }
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284 |
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285 | @Override
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286 | public Map<String, String> getKeys() {
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287 | return tags;
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288 | }
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289 |
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290 | @Override
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291 | public void setKeys(Map<String, String> keys) {
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292 | CheckParameterUtil.ensureParameterNotNull(keys, "keys");
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293 | keys.values().stream()
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294 | .filter(value -> value != null && value.length() > MAX_CHANGESET_TAG_LENGTH)
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295 | .findFirst()
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296 | .ifPresent(value -> {
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297 | throw new IllegalArgumentException("Changeset tag value is too long: "+value);
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298 | });
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299 | this.tags = keys;
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300 | }
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301 |
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302 | /**
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303 | * Determines if this changeset is incomplete.
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304 | * @return {@code true} if this changeset is incomplete
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305 | */
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306 | public boolean isIncomplete() {
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307 | return incomplete;
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308 | }
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309 |
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310 | /**
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311 | * Sets whether this changeset is incomplete
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312 | * @param incomplete {@code true} if this changeset is incomplete
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313 | */
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314 | public void setIncomplete(boolean incomplete) {
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315 | this.incomplete = incomplete;
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316 | }
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317 |
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318 | @Override
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319 | public void put(String key, String value) {
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320 | CheckParameterUtil.ensureParameterNotNull(key, "key");
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321 | if (value != null && value.length() > MAX_CHANGESET_TAG_LENGTH) {
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322 | throw new IllegalArgumentException("Changeset tag value is too long: "+value);
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323 | }
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324 | this.tags.put(key, value);
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325 | }
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326 |
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327 | @Override
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328 | public String get(String key) {
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329 | return this.tags.get(key);
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330 | }
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331 |
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332 | @Override
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333 | public void remove(String key) {
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334 | this.tags.remove(key);
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335 | }
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336 |
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337 | @Override
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338 | public void removeAll() {
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339 | this.tags.clear();
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340 | }
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341 |
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342 | /**
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343 | * Determines if this changeset has equals semantic attributes with another one.
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344 | * @param other other changeset
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345 | * @return {@code true} if this changeset has equals semantic attributes with other changeset
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346 | */
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347 | public boolean hasEqualSemanticAttributes(Changeset other) {
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348 | if (other == null)
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349 | return false;
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350 | if (closedAt == null) {
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351 | if (other.closedAt != null)
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352 | return false;
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353 | } else if (!closedAt.equals(other.closedAt))
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354 | return false;
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355 | if (createdAt == null) {
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356 | if (other.createdAt != null)
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357 | return false;
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358 | } else if (!createdAt.equals(other.createdAt))
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359 | return false;
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360 | if (id != other.id)
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361 | return false;
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362 | if (max == null) {
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363 | if (other.max != null)
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364 | return false;
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365 | } else if (!max.equals(other.max))
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366 | return false;
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367 | if (min == null) {
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368 | if (other.min != null)
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369 | return false;
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370 | } else if (!min.equals(other.min))
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371 | return false;
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372 | if (open != other.open)
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373 | return false;
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374 | if (!tags.equals(other.tags))
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375 | return false;
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376 | if (user == null) {
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377 | if (other.user != null)
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378 | return false;
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379 | } else if (!user.equals(other.user))
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380 | return false;
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381 | return commentsCount == other.commentsCount;
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382 | }
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383 |
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384 | @Override
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385 | public int hashCode() {
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386 | return Objects.hash(id);
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387 | }
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388 |
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389 | @Override
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390 | public boolean equals(Object obj) {
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391 | if (this == obj) return true;
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392 | if (obj == null || getClass() != obj.getClass()) return false;
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393 | Changeset changeset = (Changeset) obj;
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394 | return id == changeset.id;
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395 | }
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396 |
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397 | @Override
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398 | public boolean hasKeys() {
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399 | return !tags.keySet().isEmpty();
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400 | }
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401 |
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402 | @Override
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403 | public Collection<String> keySet() {
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404 | return tags.keySet();
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405 | }
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406 |
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407 | @Override
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408 | public int getNumKeys() {
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409 | return tags.size();
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410 | }
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411 |
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412 | /**
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413 | * Determines if this changeset is new.
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414 | * @return {@code true} if this changeset is new ({@code id <= 0})
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415 | */
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416 | public boolean isNew() {
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417 | return id <= 0;
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418 | }
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419 |
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420 | /**
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421 | * Merges changeset metadata from another changeset.
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422 | * @param other other changeset
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423 | */
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424 | public void mergeFrom(Changeset other) {
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425 | if (other == null)
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426 | return;
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427 | if (id != other.id)
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428 | return;
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429 | this.user = other.user;
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430 | this.createdAt = DateUtils.cloneDate(other.createdAt);
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431 | this.closedAt = DateUtils.cloneDate(other.closedAt);
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432 | this.open = other.open;
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433 | this.min = other.min;
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434 | this.max = other.max;
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435 | this.commentsCount = other.commentsCount;
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436 | this.tags = new HashMap<>(other.tags);
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437 | this.incomplete = other.incomplete;
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438 | this.discussion = other.discussion != null ? new ArrayList<>(other.discussion) : null;
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439 |
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440 | // FIXME: merging of content required?
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441 | this.content = other.content;
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442 | }
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443 |
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444 | /**
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445 | * Determines if this changeset has contents.
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446 | * @return {@code true} if this changeset has contents
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447 | */
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448 | public boolean hasContent() {
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449 | return content != null;
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450 | }
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451 |
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452 | /**
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453 | * Returns the changeset contents.
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454 | * @return the changeset contents, can be null
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455 | */
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456 | public ChangesetDataSet getContent() {
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457 | return content;
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458 | }
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459 |
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460 | /**
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461 | * Sets the changeset contents.
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462 | * @param content changeset contents, can be null
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463 | */
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464 | public void setContent(ChangesetDataSet content) {
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465 | this.content = content;
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466 | }
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467 |
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468 | /**
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469 | * Replies the list of comments in the changeset discussion, if any.
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470 | * @return the list of comments in the changeset discussion. May be empty but never null
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471 | * @since 7704
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472 | */
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473 | public synchronized List<ChangesetDiscussionComment> getDiscussion() {
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474 | if (discussion == null) {
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475 | return Collections.emptyList();
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476 | }
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477 | return new ArrayList<>(discussion);
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478 | }
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479 |
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480 | /**
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481 | * Adds a comment to the changeset discussion.
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482 | * @param comment the comment to add. Ignored if null
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483 | * @since 7704
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484 | */
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485 | public synchronized void addDiscussionComment(ChangesetDiscussionComment comment) {
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486 | if (comment == null) {
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487 | return;
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488 | }
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489 | if (discussion == null) {
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490 | discussion = new ArrayList<>();
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491 | }
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492 | discussion.add(comment);
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493 | }
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494 | }
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