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.Arrays;
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6 | import java.util.Collection;
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7 | import java.util.HashSet;
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8 | import java.util.List;
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9 | import java.util.Map;
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10 | import java.util.Set;
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11 |
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12 | import org.openstreetmap.josm.Main;
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13 | import org.openstreetmap.josm.data.osm.visitor.PrimitiveVisitor;
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14 | import org.openstreetmap.josm.data.osm.visitor.Visitor;
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15 | import org.openstreetmap.josm.tools.CopyList;
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16 | import org.openstreetmap.josm.tools.Utils;
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17 |
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18 | /**
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19 | * An relation, having a set of tags and any number (0...n) of members.
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20 | *
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21 | * @author Frederik Ramm <frederik@remote.org>
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22 | */
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23 | public final class Relation extends OsmPrimitive implements IRelation {
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24 |
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25 | private RelationMember[] members = new RelationMember[0];
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26 |
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27 | private BBox bbox;
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28 |
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29 | /**
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30 | * @return Members of the relation. Changes made in returned list are not mapped
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31 | * back to the primitive, use setMembers() to modify the members
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32 | * @since 1925
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33 | */
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34 | public List<RelationMember> getMembers() {
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35 | return new CopyList<RelationMember>(members);
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36 | }
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37 |
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38 | /**
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39 | *
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40 | * @param members Can be null, in that case all members are removed
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41 | * @since 1925
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42 | */
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43 | public void setMembers(List<RelationMember> members) {
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44 | boolean locked = writeLock();
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45 | try {
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46 | for (RelationMember rm : this.members) {
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47 | rm.getMember().removeReferrer(this);
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48 | rm.getMember().clearCachedStyle();
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49 | }
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50 |
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51 | if (members != null) {
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52 | this.members = members.toArray(new RelationMember[members.size()]);
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53 | } else {
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54 | this.members = new RelationMember[0];
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55 | }
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56 | for (RelationMember rm : this.members) {
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57 | rm.getMember().addReferrer(this);
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58 | rm.getMember().clearCachedStyle();
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59 | }
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60 |
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61 | fireMembersChanged();
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62 | } finally {
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63 | writeUnlock(locked);
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64 | }
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65 | }
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66 |
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67 | /**
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68 | * @return number of members
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69 | */
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70 | @Override
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71 | public int getMembersCount() {
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72 | return members.length;
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73 | }
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74 |
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75 | public RelationMember getMember(int index) {
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76 | return members[index];
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77 | }
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78 |
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79 | public void addMember(RelationMember member) {
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80 | boolean locked = writeLock();
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81 | try {
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82 | RelationMember[] newMembers = new RelationMember[members.length + 1];
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83 | System.arraycopy(members, 0, newMembers, 0, members.length);
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84 | newMembers[members.length] = member;
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85 | members = newMembers;
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86 | member.getMember().addReferrer(this);
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87 | member.getMember().clearCachedStyle();
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88 | fireMembersChanged();
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89 | } finally {
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90 | writeUnlock(locked);
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91 | }
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92 | }
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93 |
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94 | public void addMember(int index, RelationMember member) {
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95 | boolean locked = writeLock();
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96 | try {
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97 | RelationMember[] newMembers = new RelationMember[members.length + 1];
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98 | System.arraycopy(members, 0, newMembers, 0, index);
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99 | System.arraycopy(members, index, newMembers, index + 1, members.length - index);
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100 | newMembers[index] = member;
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101 | members = newMembers;
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102 | member.getMember().addReferrer(this);
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103 | member.getMember().clearCachedStyle();
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104 | fireMembersChanged();
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105 | } finally {
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106 | writeUnlock(locked);
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107 | }
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108 | }
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109 |
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110 | /**
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111 | * Replace member at position specified by index.
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112 | * @param index
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113 | * @param member
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114 | * @return Member that was at the position
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115 | */
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116 | public RelationMember setMember(int index, RelationMember member) {
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117 | boolean locked = writeLock();
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118 | try {
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119 | RelationMember originalMember = members[index];
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120 | members[index] = member;
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121 | if (originalMember.getMember() != member.getMember()) {
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122 | member.getMember().addReferrer(this);
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123 | member.getMember().clearCachedStyle();
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124 | originalMember.getMember().removeReferrer(this);
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125 | originalMember.getMember().clearCachedStyle();
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126 | fireMembersChanged();
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127 | }
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128 | return originalMember;
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129 | } finally {
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130 | writeUnlock(locked);
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131 | }
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132 | }
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133 |
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134 | /**
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135 | * Removes member at specified position.
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136 | * @param index
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137 | * @return Member that was at the position
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138 | */
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139 | public RelationMember removeMember(int index) {
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140 | boolean locked = writeLock();
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141 | try {
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142 | List<RelationMember> members = getMembers();
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143 | RelationMember result = members.remove(index);
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144 | setMembers(members);
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145 | return result;
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146 | } finally {
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147 | writeUnlock(locked);
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148 | }
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149 | }
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150 |
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151 | @Override
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152 | public long getMemberId(int idx) {
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153 | return members[idx].getUniqueId();
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154 | }
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155 |
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156 | @Override
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157 | public String getRole(int idx) {
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158 | return members[idx].getRole();
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159 | }
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160 |
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161 | @Override
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162 | public OsmPrimitiveType getMemberType(int idx) {
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163 | return members[idx].getType();
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164 | }
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165 |
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166 | @Override public void accept(Visitor visitor) {
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167 | visitor.visit(this);
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168 | }
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169 |
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170 | @Override public void accept(PrimitiveVisitor visitor) {
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171 | visitor.visit(this);
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172 | }
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173 |
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174 | protected Relation(long id, boolean allowNegative) {
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175 | super(id, allowNegative);
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176 | }
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177 |
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178 | /**
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179 | * Create a new relation with id 0
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180 | */
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181 | public Relation() {
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182 | super(0, false);
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183 | }
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184 |
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185 | /**
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186 | * Constructs an identical clone of the argument.
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187 | * @param clone The relation to clone
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188 | * @param clearMetadata If {@code true}, clears the OSM id and other metadata as defined by {@link #clearOsmMetadata}. If {@code false}, does nothing
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189 | */
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190 | public Relation(Relation clone, boolean clearMetadata) {
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191 | super(clone.getUniqueId(), true);
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192 | cloneFrom(clone);
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193 | if (clearMetadata) {
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194 | clearOsmMetadata();
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195 | }
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196 | }
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197 |
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198 | /**
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199 | * Create an identical clone of the argument (including the id)
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200 | * @param clone The relation to clone, including its id
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201 | */
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202 | public Relation(Relation clone) {
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203 | this(clone, false);
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204 | }
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205 |
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206 | /**
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207 | * Creates a new relation for the given id. If the id > 0, the way is marked
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208 | * as incomplete.
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209 | *
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210 | * @param id the id. > 0 required
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211 | * @throws IllegalArgumentException thrown if id < 0
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212 | */
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213 | public Relation(long id) throws IllegalArgumentException {
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214 | super(id, false);
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215 | }
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216 |
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217 | /**
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218 | * Creates new relation
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219 | * @param id
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220 | * @param version
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221 | */
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222 | public Relation(long id, int version) {
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223 | super(id, version, false);
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224 | }
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225 |
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226 | @Override public void cloneFrom(OsmPrimitive osm) {
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227 | boolean locked = writeLock();
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228 | try {
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229 | super.cloneFrom(osm);
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230 | // It's not necessary to clone members as RelationMember class is immutable
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231 | setMembers(((Relation)osm).getMembers());
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232 | } finally {
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233 | writeUnlock(locked);
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234 | }
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235 | }
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236 |
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237 | @Override public void load(PrimitiveData data) {
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238 | boolean locked = writeLock();
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239 | try {
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240 | super.load(data);
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241 |
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242 | RelationData relationData = (RelationData) data;
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243 |
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244 | List<RelationMember> newMembers = new ArrayList<RelationMember>();
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245 | for (RelationMemberData member : relationData.getMembers()) {
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246 | OsmPrimitive primitive = getDataSet().getPrimitiveById(member);
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247 | if (primitive == null)
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248 | throw new AssertionError("Data consistency problem - relation with missing member detected");
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249 | newMembers.add(new RelationMember(member.getRole(), primitive));
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250 | }
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251 | setMembers(newMembers);
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252 | } finally {
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253 | writeUnlock(locked);
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254 | }
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255 | }
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256 |
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257 | @Override public RelationData save() {
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258 | RelationData data = new RelationData();
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259 | saveCommonAttributes(data);
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260 | for (RelationMember member:getMembers()) {
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261 | data.getMembers().add(new RelationMemberData(member.getRole(), member.getMember()));
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262 | }
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263 | return data;
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264 | }
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265 |
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266 | @Override public String toString() {
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267 | StringBuilder result = new StringBuilder();
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268 | result.append("{Relation id=");
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269 | result.append(getUniqueId());
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270 | result.append(" version=");
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271 | result.append(getVersion());
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272 | result.append(" ");
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273 | result.append(getFlagsAsString());
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274 | result.append(" [");
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275 | for (RelationMember rm:getMembers()) {
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276 | result.append(OsmPrimitiveType.from(rm.getMember()));
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277 | result.append(" ");
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278 | result.append(rm.getMember().getUniqueId());
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279 | result.append(", ");
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280 | }
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281 | result.delete(result.length()-2, result.length());
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282 | result.append("]");
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283 | result.append("}");
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284 | return result.toString();
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285 | }
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286 |
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287 | @Override
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288 | public boolean hasEqualSemanticAttributes(OsmPrimitive other) {
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289 | if (!(other instanceof Relation))
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290 | return false;
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291 | if (! super.hasEqualSemanticAttributes(other))
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292 | return false;
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293 | Relation r = (Relation)other;
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294 | return Arrays.equals(members, r.members);
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295 | }
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296 |
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297 | @Override
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298 | public int compareTo(OsmPrimitive o) {
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299 | return o instanceof Relation ? Long.valueOf(getUniqueId()).compareTo(o.getUniqueId()) : -1;
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300 | }
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301 |
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302 | public RelationMember firstMember() {
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303 | if (isIncomplete()) return null;
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304 |
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305 | RelationMember[] members = this.members;
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306 | return (members.length == 0) ? null : members[0];
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307 | }
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308 | public RelationMember lastMember() {
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309 | if (isIncomplete()) return null;
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310 |
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311 | RelationMember[] members = this.members;
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312 | return (members.length == 0) ? null : members[members.length - 1];
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313 | }
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314 |
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315 | /**
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316 | * removes all members with member.member == primitive
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317 | *
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318 | * @param primitive the primitive to check for
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319 | */
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320 | public void removeMembersFor(OsmPrimitive primitive) {
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321 | if (primitive == null)
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322 | return;
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323 |
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324 | boolean locked = writeLock();
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325 | try {
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326 | List<RelationMember> todelete = new ArrayList<RelationMember>();
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327 | for (RelationMember member: members) {
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328 | if (member.getMember() == primitive) {
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329 | todelete.add(member);
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330 | }
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331 | }
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332 | List<RelationMember> members = getMembers();
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333 | members.removeAll(todelete);
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334 | setMembers(members);
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335 | } finally {
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336 | writeUnlock(locked);
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337 | }
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338 | }
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339 |
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340 | @Override
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341 | public void setDeleted(boolean deleted) {
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342 | boolean locked = writeLock();
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343 | try {
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344 | for (RelationMember rm:members) {
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345 | if (deleted) {
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346 | rm.getMember().removeReferrer(this);
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347 | } else {
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348 | rm.getMember().addReferrer(this);
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349 | }
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350 | }
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351 | super.setDeleted(deleted);
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352 | } finally {
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353 | writeUnlock(locked);
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354 | }
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355 | }
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356 |
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357 | /**
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358 | * removes all members with member.member == primitive
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359 | *
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360 | * @param primitives the primitives to check for
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361 | * @since 5613
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362 | */
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363 | public void removeMembersFor(Collection<? extends OsmPrimitive> primitives) {
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364 | if (primitives == null || primitives.isEmpty())
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365 | return;
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366 |
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367 | boolean locked = writeLock();
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368 | try {
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369 | List<RelationMember> todelete = new ArrayList<RelationMember>();
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370 | for (RelationMember member: members) {
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371 | if (primitives.contains(member.getMember())) {
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372 | todelete.add(member);
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373 | }
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374 | }
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375 | List<RelationMember> members = getMembers();
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376 | members.removeAll(todelete);
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377 | setMembers(members);
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378 | } finally {
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379 | writeUnlock(locked);
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380 | }
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381 | }
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382 |
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383 | @Override
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384 | public String getDisplayName(NameFormatter formatter) {
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385 | return formatter.format(this);
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386 | }
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387 |
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388 | /**
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389 | * Replies the set of {@link OsmPrimitive}s referred to by at least one
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390 | * member of this relation
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391 | *
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392 | * @return the set of {@link OsmPrimitive}s referred to by at least one
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393 | * member of this relation
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394 | */
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395 | public Set<OsmPrimitive> getMemberPrimitives() {
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396 | HashSet<OsmPrimitive> ret = new HashSet<OsmPrimitive>();
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397 | RelationMember[] members = this.members;
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398 | for (RelationMember m: members) {
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399 | if (m.getMember() != null) {
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400 | ret.add(m.getMember());
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401 | }
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402 | }
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403 | return ret;
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404 | }
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405 |
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406 | public List<OsmPrimitive> getMemberPrimitivesList() {
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407 | return Utils.transform(getMembers(), new Utils.Function<RelationMember, OsmPrimitive>() {
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408 | @Override
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409 | public OsmPrimitive apply(RelationMember x) {
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410 | return x.getMember();
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411 | }
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412 | });
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413 | }
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414 |
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415 | @Override
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416 | public OsmPrimitiveType getType() {
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417 | return OsmPrimitiveType.RELATION;
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418 | }
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419 |
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420 | @Override
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421 | public OsmPrimitiveType getDisplayType() {
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422 | return isMultipolygon() ? OsmPrimitiveType.MULTIPOLYGON
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423 | : OsmPrimitiveType.RELATION;
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424 | }
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425 |
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426 | public boolean isMultipolygon() {
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427 | return "multipolygon".equals(get("type")) || "boundary".equals(get("type"));
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428 | }
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429 |
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430 | @Override
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431 | public BBox getBBox() {
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432 | RelationMember[] members = this.members;
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433 |
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434 | if (members.length == 0)
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435 | return new BBox(0, 0, 0, 0);
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436 | if (getDataSet() == null)
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437 | return calculateBBox(new HashSet<PrimitiveId>());
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438 | else {
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439 | if (bbox == null) {
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440 | bbox = calculateBBox(new HashSet<PrimitiveId>());
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441 | }
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442 | if (bbox == null)
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443 | return new BBox(0, 0, 0, 0); // No real members
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444 | else
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445 | return new BBox(bbox);
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446 | }
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447 | }
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448 |
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449 | private BBox calculateBBox(Set<PrimitiveId> visitedRelations) {
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450 | if (visitedRelations.contains(this))
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451 | return null;
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452 | visitedRelations.add(this);
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453 |
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454 | RelationMember[] members = this.members;
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455 | if (members.length == 0)
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456 | return null;
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457 | else {
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458 | BBox result = null;
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459 | for (RelationMember rm:members) {
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460 | BBox box = rm.isRelation()?rm.getRelation().calculateBBox(visitedRelations):rm.getMember().getBBox();
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461 | if (box != null) {
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462 | if (result == null) {
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463 | result = box;
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464 | } else {
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465 | result.add(box);
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466 | }
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467 | }
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468 | }
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469 | return result;
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470 | }
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471 | }
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472 |
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473 | @Override
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474 | public void updatePosition() {
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475 | bbox = calculateBBox(new HashSet<PrimitiveId>());
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476 | }
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477 |
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478 | @Override
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479 | public void setDataset(DataSet dataSet) {
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480 | super.setDataset(dataSet);
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481 | checkMembers();
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482 | bbox = null; // bbox might have changed if relation was in ds, was removed, modified, added back to dataset
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483 | }
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484 |
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485 | private void checkMembers() {
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486 | DataSet dataSet = getDataSet();
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487 | if (dataSet != null) {
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488 | RelationMember[] members = this.members;
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489 | for (RelationMember rm: members) {
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490 | if (rm.getMember().getDataSet() != dataSet)
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491 | throw new DataIntegrityProblemException(String.format("Relation member must be part of the same dataset as relation(%s, %s)", getPrimitiveId(), rm.getMember().getPrimitiveId()));
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492 | }
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493 | if (Main.pref.getBoolean("debug.checkDeleteReferenced", true)) {
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494 | for (RelationMember rm: members) {
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495 | if (rm.getMember().isDeleted())
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496 | throw new DataIntegrityProblemException("Deleted member referenced: " + toString());
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497 | }
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498 | }
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499 | }
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500 | }
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501 |
|
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502 | private void fireMembersChanged() {
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503 | checkMembers();
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504 | if (getDataSet() != null) {
|
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505 | getDataSet().fireRelationMembersChanged(this);
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506 | }
|
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507 | }
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508 |
|
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509 | /**
|
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510 | * Replies true if at least one child primitive is incomplete
|
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511 | *
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512 | * @return true if at least one child primitive is incomplete
|
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513 | */
|
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514 | public boolean hasIncompleteMembers() {
|
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515 | RelationMember[] members = this.members;
|
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516 | for (RelationMember rm: members) {
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517 | if (rm.getMember().isIncomplete()) return true;
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518 | }
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519 | return false;
|
---|
520 | }
|
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521 |
|
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522 | /**
|
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523 | * Replies a collection with the incomplete children this relation
|
---|
524 | * refers to
|
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525 | *
|
---|
526 | * @return the incomplete children. Empty collection if no children are incomplete.
|
---|
527 | */
|
---|
528 | public Collection<OsmPrimitive> getIncompleteMembers() {
|
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529 | Set<OsmPrimitive> ret = new HashSet<OsmPrimitive>();
|
---|
530 | RelationMember[] members = this.members;
|
---|
531 | for (RelationMember rm: members) {
|
---|
532 | if (!rm.getMember().isIncomplete()) {
|
---|
533 | continue;
|
---|
534 | }
|
---|
535 | ret.add(rm.getMember());
|
---|
536 | }
|
---|
537 | return ret;
|
---|
538 | }
|
---|
539 |
|
---|
540 | @Override
|
---|
541 | protected void keysChangedImpl(Map<String, String> originalKeys) {
|
---|
542 | super.keysChangedImpl(originalKeys);
|
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543 | // fix #8346 - Clear style cache for multipolygon members after a tag change
|
---|
544 | if (isMultipolygon()) {
|
---|
545 | for (OsmPrimitive member : getMemberPrimitives()) {
|
---|
546 | member.clearCachedStyle();
|
---|
547 | }
|
---|
548 | }
|
---|
549 | }
|
---|
550 |
|
---|
551 | @Override
|
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552 | public boolean concernsArea() {
|
---|
553 | return isMultipolygon() && hasAreaTags();
|
---|
554 | }
|
---|
555 | }
|
---|