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