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 static org.openstreetmap.josm.tools.I18n.tr;
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5 |
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6 | import java.text.MessageFormat;
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7 | import java.util.Collection;
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8 | import java.util.Collections;
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9 | import java.util.Date;
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10 | import java.util.HashMap;
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11 | import java.util.HashSet;
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12 | import java.util.Locale;
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13 | import java.util.Map;
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14 | import java.util.Map.Entry;
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15 | import java.util.Set;
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16 | import java.util.concurrent.atomic.AtomicLong;
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17 |
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18 | public abstract class AbstractPrimitive implements IPrimitive {
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19 |
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20 | private static final AtomicLong idCounter = new AtomicLong(0);
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21 |
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22 | static long generateUniqueId() {
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23 | return idCounter.decrementAndGet();
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24 | }
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25 |
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26 | /**
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27 | * This flag shows, that the properties have been changed by the user
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28 | * and on upload the object will be send to the server
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29 | */
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30 | protected static final int FLAG_MODIFIED = 1 << 0;
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31 |
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32 | /**
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33 | * The visible flag indicates, that an object is marked
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34 | * as deleted on the server.
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35 | */
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36 | protected static final int FLAG_VISIBLE = 1 << 1;
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37 |
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38 | /**
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39 | * An object that was deleted by the user.
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40 | * Deleted objects are usually hidden on the map and a request
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41 | * for deletion will be send to the server on upload.
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42 | * An object usually cannot be deleted if it has non-deleted
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43 | * objects still referring to it.
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44 | */
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45 | protected static final int FLAG_DELETED = 1 << 2;
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46 |
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47 | /**
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48 | * A primitive is incomplete if we know its id and type, but nothing more.
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49 | * Typically some members of a relation are incomplete until they are
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50 | * fetched from the server.
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51 | */
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52 | protected static final int FLAG_INCOMPLETE = 1 << 3;
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53 |
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54 | /**
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55 | * Put several boolean flag to one short int field to save memory.
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56 | * Other bits of this field are used in subclasses.
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57 | */
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58 | protected volatile short flags = FLAG_VISIBLE; // visible per default
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59 |
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60 | /*-------------------
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61 | * OTHER PROPERTIES
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62 | *-------------------*/
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63 |
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64 | /**
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65 | * Unique identifier in OSM. This is used to identify objects on the server.
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66 | * An id of 0 means an unknown id. The object has not been uploaded yet to
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67 | * know what id it will get.
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68 | *
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69 | */
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70 | protected long id = 0;
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71 |
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72 | /**
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73 | * User that last modified this primitive, as specified by the server.
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74 | * Never changed by JOSM.
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75 | */
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76 | protected User user = null;
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77 |
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78 | /**
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79 | * Contains the version number as returned by the API. Needed to
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80 | * ensure update consistency
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81 | */
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82 | protected int version = 0;
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83 |
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84 | /**
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85 | * The id of the changeset this primitive was last uploaded to.
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86 | * 0 if it wasn't uploaded to a changeset yet of if the changeset
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87 | * id isn't known.
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88 | */
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89 | protected int changesetId;
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90 |
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91 | protected int timestamp;
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92 |
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93 | /**
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94 | * Get and write all attributes from the parameter. Does not fire any listener, so
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95 | * use this only in the data initializing phase
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96 | */
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97 | public void cloneFrom(AbstractPrimitive other) {
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98 | setKeys(other.getKeys());
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99 | id = other.id;
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100 | if (id <=0) {
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101 | // reset version and changeset id
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102 | version = 0;
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103 | changesetId = 0;
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104 | }
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105 | timestamp = other.timestamp;
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106 | if (id > 0) {
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107 | version = other.version;
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108 | }
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109 | flags = other.flags;
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110 | user= other.user;
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111 | if (id > 0 && other.changesetId > 0) {
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112 | // #4208: sometimes we cloned from other with id < 0 *and*
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113 | // an assigned changeset id. Don't know why yet. For primitives
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114 | // with id < 0 we don't propagate the changeset id any more.
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115 | //
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116 | setChangesetId(other.changesetId);
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117 | }
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118 | }
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119 |
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120 | /**
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121 | * Replies the version number as returned by the API. The version is 0 if the id is 0 or
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122 | * if this primitive is incomplete.
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123 | *
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124 | * @see #setVersion(int)
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125 | */
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126 | @Override
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127 | public int getVersion() {
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128 | return version;
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129 | }
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130 |
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131 | /**
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132 | * Replies the id of this primitive.
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133 | *
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134 | * @return the id of this primitive.
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135 | */
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136 | @Override
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137 | public long getId() {
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138 | long id = this.id;
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139 | return id >= 0?id:0;
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140 | }
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141 |
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142 | /**
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143 | *
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144 | * @return Osm id if primitive already exists on the server. Unique negative value if primitive is new
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145 | */
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146 | @Override
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147 | public long getUniqueId() {
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148 | return id;
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149 | }
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150 |
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151 | /**
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152 | *
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153 | * @return True if primitive is new (not yet uploaded the server, id <= 0)
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154 | */
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155 | @Override
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156 | public boolean isNew() {
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157 | return id <= 0;
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158 | }
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159 |
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160 | /**
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161 | *
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162 | * @return True if primitive is new or undeleted
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163 | * @see #isNew()
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164 | * @see #isUndeleted()
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165 | */
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166 | @Override
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167 | public boolean isNewOrUndeleted() {
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168 | return (id <= 0) || ((flags & (FLAG_VISIBLE + FLAG_DELETED)) == 0);
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169 | }
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170 |
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171 | /**
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172 | * Sets the id and the version of this primitive if it is known to the OSM API.
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173 | *
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174 | * Since we know the id and its version it can't be incomplete anymore. incomplete
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175 | * is set to false.
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176 | *
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177 | * @param id the id. > 0 required
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178 | * @param version the version > 0 required
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179 | * @throws IllegalArgumentException thrown if id <= 0
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180 | * @throws IllegalArgumentException thrown if version <= 0
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181 | * @throws DataIntegrityProblemException If id is changed and primitive was already added to the dataset
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182 | */
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183 | @Override
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184 | public void setOsmId(long id, int version) {
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185 | if (id <= 0)
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186 | throw new IllegalArgumentException(tr("ID > 0 expected. Got {0}.", id));
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187 | if (version <= 0)
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188 | throw new IllegalArgumentException(tr("Version > 0 expected. Got {0}.", version));
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189 | this.id = id;
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190 | this.version = version;
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191 | this.setIncomplete(false);
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192 | }
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193 |
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194 | /**
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195 | * Clears the id and version known to the OSM API. The id and the version is set to 0.
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196 | * incomplete is set to false. It's preferred to use copy constructor with clearId set to true instead
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197 | * of calling this method.
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198 | */
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199 | public void clearOsmId() {
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200 | // Not part of dataset - no lock necessary
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201 | this.id = generateUniqueId();
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202 | this.version = 0;
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203 | this.user = null;
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204 | this.changesetId = 0; // reset changeset id on a new object
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205 | this.setIncomplete(false);
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206 | }
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207 |
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208 | /**
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209 | * Replies the user who has last touched this object. May be null.
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210 | *
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211 | * @return the user who has last touched this object. May be null.
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212 | */
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213 | @Override
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214 | public User getUser() {
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215 | return user;
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216 | }
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217 |
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218 | /**
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219 | * Sets the user who has last touched this object.
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220 | *
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221 | * @param user the user
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222 | */
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223 | @Override
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224 | public void setUser(User user) {
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225 | this.user = user;
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226 | }
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227 |
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228 | /**
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229 | * Replies the id of the changeset this primitive was last uploaded to.
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230 | * 0 if this primitive wasn't uploaded to a changeset yet or if the
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231 | * changeset isn't known.
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232 | *
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233 | * @return the id of the changeset this primitive was last uploaded to.
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234 | */
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235 | @Override
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236 | public int getChangesetId() {
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237 | return changesetId;
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238 | }
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239 |
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240 | /**
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241 | * Sets the changeset id of this primitive. Can't be set on a new
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242 | * primitive.
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243 | *
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244 | * @param changesetId the id. >= 0 required.
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245 | * @throws IllegalStateException thrown if this primitive is new.
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246 | * @throws IllegalArgumentException thrown if id < 0
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247 | */
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248 | @Override
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249 | public void setChangesetId(int changesetId) throws IllegalStateException, IllegalArgumentException {
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250 | if (this.changesetId == changesetId)
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251 | return;
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252 | if (changesetId < 0)
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253 | throw new IllegalArgumentException(MessageFormat.format("Parameter ''{0}'' >= 0 expected, got {1}", "changesetId", changesetId));
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254 | if (isNew() && changesetId > 0)
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255 | throw new IllegalStateException(tr("Cannot assign a changesetId > 0 to a new primitive. Value of changesetId is {0}", changesetId));
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256 |
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257 | int old = this.changesetId;
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258 | this.changesetId = changesetId;
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259 | }
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260 |
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261 | /**
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262 | * Replies the unique primitive id for this primitive
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263 | *
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264 | * @return the unique primitive id for this primitive
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265 | */
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266 | @Override
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267 | public PrimitiveId getPrimitiveId() {
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268 | return new SimplePrimitiveId(getUniqueId(), getType());
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269 | }
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270 |
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271 | public OsmPrimitiveType getDisplayType() {
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272 | return getType();
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273 | }
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274 |
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275 | @Override
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276 | public void setTimestamp(Date timestamp) {
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277 | this.timestamp = (int)(timestamp.getTime() / 1000);
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278 | }
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279 |
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280 | /**
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281 | * Time of last modification to this object. This is not set by JOSM but
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282 | * read from the server and delivered back to the server unmodified. It is
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283 | * used to check against edit conflicts.
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284 | *
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285 | */
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286 | @Override
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287 | public Date getTimestamp() {
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288 | return new Date(timestamp * 1000l);
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289 | }
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290 |
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291 | @Override
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292 | public boolean isTimestampEmpty() {
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293 | return timestamp == 0;
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294 | }
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295 |
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296 | /* -------
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297 | /* FLAGS
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298 | /* ------*/
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299 |
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300 | protected void updateFlags(int flag, boolean value) {
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301 | if (value) {
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302 | flags |= flag;
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303 | } else {
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304 | flags &= ~flag;
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305 | }
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306 | }
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307 |
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308 | /**
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309 | * Marks this primitive as being modified.
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310 | *
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311 | * @param modified true, if this primitive is to be modified
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312 | */
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313 | @Override
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314 | public void setModified(boolean modified) {
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315 | updateFlags(FLAG_MODIFIED, modified);
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316 | }
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317 |
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318 | /**
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319 | * Replies <code>true</code> if the object has been modified since it was loaded from
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320 | * the server. In this case, on next upload, this object will be updated.
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321 | *
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322 | * Deleted objects are deleted from the server. If the objects are added (id=0),
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323 | * the modified is ignored and the object is added to the server.
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324 | *
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325 | * @return <code>true</code> if the object has been modified since it was loaded from
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326 | * the server
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327 | */
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328 | @Override
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329 | public boolean isModified() {
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330 | return (flags & FLAG_MODIFIED) != 0;
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331 | }
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332 |
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333 | /**
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334 | * Replies <code>true</code>, if the object has been deleted.
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335 | *
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336 | * @return <code>true</code>, if the object has been deleted.
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337 | * @see #setDeleted(boolean)
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338 | */
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339 | @Override
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340 | public boolean isDeleted() {
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341 | return (flags & FLAG_DELETED) != 0;
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342 | }
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343 |
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344 | /**
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345 | * Replies <code>true</code> if the object has been deleted on the server and was undeleted by the user.
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346 | * @return <code>true</code> if the object has been undeleted
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347 | */
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348 | public boolean isUndeleted() {
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349 | return (flags & (FLAG_VISIBLE + FLAG_DELETED)) == 0;
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350 | }
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351 |
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352 | /**
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353 | * Replies <code>true</code>, if the object is usable (i.e. complete
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354 | * and not deleted).
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355 | *
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356 | * @return <code>true</code>, if the object is usable.
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357 | * @see #delete(boolean)
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358 | */
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359 | public boolean isUsable() {
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360 | return (flags & (FLAG_DELETED + FLAG_INCOMPLETE)) == 0;
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361 | }
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362 |
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363 | /**
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364 | * Replies true if this primitive is either unknown to the server (i.e. its id
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365 | * is 0) or it is known to the server and it hasn't be deleted on the server.
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366 | * Replies false, if this primitive is known on the server and has been deleted
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367 | * on the server.
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368 | *
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369 | * @see #setVisible(boolean)
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370 | */
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371 | @Override
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372 | public boolean isVisible() {
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373 | return (flags & FLAG_VISIBLE) != 0;
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374 | }
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375 |
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376 | /**
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377 | * Sets whether this primitive is visible, i.e. whether it is known on the server
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378 | * and not deleted on the server.
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379 | *
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380 | * @see #isVisible()
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381 | * @throws IllegalStateException thrown if visible is set to false on an primitive with
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382 | * id==0
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383 | */
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384 | @Override
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385 | public void setVisible(boolean visible) throws IllegalStateException{
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386 | if (isNew() && visible == false)
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387 | throw new IllegalStateException(tr("A primitive with ID = 0 cannot be invisible."));
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388 | updateFlags(FLAG_VISIBLE, visible);
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389 | }
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390 |
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391 | /**
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392 | * Sets whether this primitive is deleted or not.
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393 | *
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394 | * Also marks this primitive as modified if deleted is true.
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395 | *
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396 | * @param deleted true, if this primitive is deleted; false, otherwise
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397 | */
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398 | @Override
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399 | public void setDeleted(boolean deleted) {
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400 | updateFlags(FLAG_DELETED, deleted);
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401 | setModified(deleted ^ !isVisible());
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402 | }
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403 |
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404 | /**
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405 | * If set to true, this object is incomplete, which means only the id
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406 | * and type is known (type is the objects instance class)
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407 | */
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408 | protected void setIncomplete(boolean incomplete) {
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409 | updateFlags(FLAG_INCOMPLETE, incomplete);
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410 | }
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411 |
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412 | @Override
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413 | public boolean isIncomplete() {
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414 | return (flags & FLAG_INCOMPLETE) != 0;
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415 | }
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416 |
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417 | protected String getFlagsAsString() {
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418 | StringBuilder builder = new StringBuilder();
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419 |
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420 | if (isIncomplete()) {
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421 | builder.append("I");
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422 | }
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423 | if (isModified()) {
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424 | builder.append("M");
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425 | }
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426 | if (isVisible()) {
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427 | builder.append("V");
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428 | }
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429 | if (isDeleted()) {
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430 | builder.append("D");
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431 | }
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432 | return builder.toString();
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433 | }
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434 |
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435 | /*------------
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436 | * Keys handling
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437 | ------------*/
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438 |
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439 | // Note that all methods that read keys first make local copy of keys array reference. This is to ensure thread safety - reading
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440 | // doesn't have to be locked so it's possible that keys array will be modified. But all write methods make copy of keys array so
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441 | // the array itself will be never modified - only reference will be changed
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442 |
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443 | /**
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444 | * The key/value list for this primitive.
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445 | *
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446 | */
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447 | protected String[] keys;
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448 |
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449 | /**
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450 | * Replies the map of key/value pairs. Never replies null. The map can be empty, though.
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451 | *
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452 | * @return tags of this primitive. Changes made in returned map are not mapped
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453 | * back to the primitive, use setKeys() to modify the keys
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454 | */
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455 | @Override
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456 | public Map<String, String> getKeys() {
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457 | Map<String, String> result = new HashMap<String, String>();
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458 | String[] keys = this.keys;
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459 | if (keys != null) {
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460 | for (int i=0; i<keys.length ; i+=2) {
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461 | result.put(keys[i], keys[i + 1]);
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462 | }
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463 | }
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464 | return result;
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465 | }
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466 |
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467 | /**
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468 | * Sets the keys of this primitives to the key/value pairs in <code>keys</code>.
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469 | * Old key/value pairs are removed.
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470 | * If <code>keys</code> is null, clears existing key/value pairs.
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471 | *
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472 | * @param keys the key/value pairs to set. If null, removes all existing key/value pairs.
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473 | */
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474 | @Override
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475 | public void setKeys(Map<String, String> keys) {
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476 | Map<String, String> originalKeys = getKeys();
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477 | if (keys == null || keys.isEmpty()) {
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478 | this.keys = null;
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479 | keysChangedImpl(originalKeys);
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480 | return;
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481 | }
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482 | String[] newKeys = new String[keys.size() * 2];
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483 | int index = 0;
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484 | for (Entry<String, String> entry:keys.entrySet()) {
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485 | newKeys[index++] = entry.getKey();
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486 | newKeys[index++] = entry.getValue();
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487 | }
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488 | this.keys = newKeys;
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489 | keysChangedImpl(originalKeys);
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490 | }
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491 |
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492 | /**
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493 | * Set the given value to the given key. If key is null, does nothing. If value is null,
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494 | * removes the key and behaves like {@see #remove(String)}.
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495 | *
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496 | * @param key The key, for which the value is to be set. Can be null, does nothing in this case.
|
---|
497 | * @param value The value for the key. If null, removes the respective key/value pair.
|
---|
498 | *
|
---|
499 | * @see #remove(String)
|
---|
500 | */
|
---|
501 | @Override
|
---|
502 | public void put(String key, String value) {
|
---|
503 | Map<String, String> originalKeys = getKeys();
|
---|
504 | if (key == null)
|
---|
505 | return;
|
---|
506 | else if (value == null) {
|
---|
507 | remove(key);
|
---|
508 | } else if (keys == null){
|
---|
509 | keys = new String[] {key, value};
|
---|
510 | keysChangedImpl(originalKeys);
|
---|
511 | } else {
|
---|
512 | for (int i=0; i<keys.length;i+=2) {
|
---|
513 | if (keys[i].equals(key)) {
|
---|
514 | keys[i+1] = value; // This modifies the keys array but it doesn't make it invalidate for any time so its ok (see note no top)
|
---|
515 | keysChangedImpl(originalKeys);
|
---|
516 | return;
|
---|
517 | }
|
---|
518 | }
|
---|
519 | String[] newKeys = new String[keys.length + 2];
|
---|
520 | for (int i=0; i< keys.length;i+=2) {
|
---|
521 | newKeys[i] = keys[i];
|
---|
522 | newKeys[i+1] = keys[i+1];
|
---|
523 | }
|
---|
524 | newKeys[keys.length] = key;
|
---|
525 | newKeys[keys.length + 1] = value;
|
---|
526 | keys = newKeys;
|
---|
527 | keysChangedImpl(originalKeys);
|
---|
528 | }
|
---|
529 | }
|
---|
530 |
|
---|
531 | /**
|
---|
532 | * Remove the given key from the list
|
---|
533 | *
|
---|
534 | * @param key the key to be removed. Ignored, if key is null.
|
---|
535 | */
|
---|
536 | @Override
|
---|
537 | public void remove(String key) {
|
---|
538 | if (key == null || keys == null) return;
|
---|
539 | if (!hasKey(key))
|
---|
540 | return;
|
---|
541 | Map<String, String> originalKeys = getKeys();
|
---|
542 | if (keys.length == 2) {
|
---|
543 | keys = null;
|
---|
544 | keysChangedImpl(originalKeys);
|
---|
545 | return;
|
---|
546 | }
|
---|
547 | String[] newKeys = new String[keys.length - 2];
|
---|
548 | int j=0;
|
---|
549 | for (int i=0; i < keys.length; i+=2) {
|
---|
550 | if (!keys[i].equals(key)) {
|
---|
551 | newKeys[j++] = keys[i];
|
---|
552 | newKeys[j++] = keys[i+1];
|
---|
553 | }
|
---|
554 | }
|
---|
555 | keys = newKeys;
|
---|
556 | keysChangedImpl(originalKeys);
|
---|
557 | }
|
---|
558 |
|
---|
559 | /**
|
---|
560 | * Removes all keys from this primitive.
|
---|
561 | */
|
---|
562 | @Override
|
---|
563 | public void removeAll() {
|
---|
564 | if (keys != null) {
|
---|
565 | Map<String, String> originalKeys = getKeys();
|
---|
566 | keys = null;
|
---|
567 | keysChangedImpl(originalKeys);
|
---|
568 | }
|
---|
569 | }
|
---|
570 |
|
---|
571 | /**
|
---|
572 | * Replies the value for key <code>key</code>. Replies null, if <code>key</code> is null.
|
---|
573 | * Replies null, if there is no value for the given key.
|
---|
574 | *
|
---|
575 | * @param key the key. Can be null, replies null in this case.
|
---|
576 | * @return the value for key <code>key</code>.
|
---|
577 | */
|
---|
578 | @Override
|
---|
579 | public final String get(String key) {
|
---|
580 | String[] keys = this.keys;
|
---|
581 | if (key == null)
|
---|
582 | return null;
|
---|
583 | if (keys == null)
|
---|
584 | return null;
|
---|
585 | for (int i=0; i<keys.length;i+=2) {
|
---|
586 | if (keys[i].equals(key)) return keys[i+1];
|
---|
587 | }
|
---|
588 | return null;
|
---|
589 | }
|
---|
590 |
|
---|
591 | public final String getIgnoreCase(String key) {
|
---|
592 | String[] keys = this.keys;
|
---|
593 | if (key == null)
|
---|
594 | return null;
|
---|
595 | if (keys == null)
|
---|
596 | return null;
|
---|
597 | for (int i=0; i<keys.length;i+=2) {
|
---|
598 | if (keys[i].equalsIgnoreCase(key)) return keys[i+1];
|
---|
599 | }
|
---|
600 | return null;
|
---|
601 | }
|
---|
602 |
|
---|
603 | @Override
|
---|
604 | public final Collection<String> keySet() {
|
---|
605 | String[] keys = this.keys;
|
---|
606 | if (keys == null)
|
---|
607 | return Collections.emptySet();
|
---|
608 | Set<String> result = new HashSet<String>(keys.length / 2);
|
---|
609 | for (int i=0; i<keys.length; i+=2) {
|
---|
610 | result.add(keys[i]);
|
---|
611 | }
|
---|
612 | return result;
|
---|
613 | }
|
---|
614 |
|
---|
615 | /**
|
---|
616 | * Replies true, if the map of key/value pairs of this primitive is not empty.
|
---|
617 | *
|
---|
618 | * @return true, if the map of key/value pairs of this primitive is not empty; false
|
---|
619 | * otherwise
|
---|
620 | */
|
---|
621 | @Override
|
---|
622 | public final boolean hasKeys() {
|
---|
623 | return keys != null;
|
---|
624 | }
|
---|
625 |
|
---|
626 | /**
|
---|
627 | * Replies true if this primitive has a tag with key <code>key</code>
|
---|
628 | *
|
---|
629 | * @param key the key
|
---|
630 | * @return true, if his primitive has a tag with key <code>key</code>
|
---|
631 | */
|
---|
632 | public boolean hasKey(String key) {
|
---|
633 | String[] keys = this.keys;
|
---|
634 | if (key == null) return false;
|
---|
635 | if (keys == null) return false;
|
---|
636 | for (int i=0; i< keys.length;i+=2) {
|
---|
637 | if (keys[i].equals(key)) return true;
|
---|
638 | }
|
---|
639 | return false;
|
---|
640 | }
|
---|
641 |
|
---|
642 | /**
|
---|
643 | * Replies true if other isn't null and has the same tags (key/value-pairs) as this.
|
---|
644 | *
|
---|
645 | * @param other the other object primitive
|
---|
646 | * @return true if other isn't null and has the same tags (key/value-pairs) as this.
|
---|
647 | */
|
---|
648 | public boolean hasSameTags(OsmPrimitive other) {
|
---|
649 | return getKeys().equals(other.getKeys());
|
---|
650 | }
|
---|
651 |
|
---|
652 | /**
|
---|
653 | * What to do, when the tags have changed by one of the tag-changing methods.
|
---|
654 | */
|
---|
655 | abstract protected void keysChangedImpl(Map<String, String> originalKeys);
|
---|
656 |
|
---|
657 | /**
|
---|
658 | * Replies the name of this primitive. The default implementation replies the value
|
---|
659 | * of the tag <tt>name</tt> or null, if this tag is not present.
|
---|
660 | *
|
---|
661 | * @return the name of this primitive
|
---|
662 | */
|
---|
663 | @Override
|
---|
664 | public String getName() {
|
---|
665 | return get("name");
|
---|
666 | }
|
---|
667 |
|
---|
668 | /**
|
---|
669 | * Replies the a localized name for this primitive given by the value of the tags (in this order)
|
---|
670 | * <ul>
|
---|
671 | * <li>name:lang_COUNTRY_Variant of the current locale</li>
|
---|
672 | * <li>name:lang_COUNTRY of the current locale</li>
|
---|
673 | * <li>name:lang of the current locale</li>
|
---|
674 | * <li>name of the current locale</li>
|
---|
675 | * </ul>
|
---|
676 | *
|
---|
677 | * null, if no such tag exists
|
---|
678 | *
|
---|
679 | * @return the name of this primitive
|
---|
680 | */
|
---|
681 | @Override
|
---|
682 | public String getLocalName() {
|
---|
683 | String key = "name:" + Locale.getDefault().toString();
|
---|
684 | if (get(key) != null)
|
---|
685 | return get(key);
|
---|
686 | key = "name:" + Locale.getDefault().getLanguage() + "_" + Locale.getDefault().getCountry();
|
---|
687 | if (get(key) != null)
|
---|
688 | return get(key);
|
---|
689 | key = "name:" + Locale.getDefault().getLanguage();
|
---|
690 | if (get(key) != null)
|
---|
691 | return get(key);
|
---|
692 | return getName();
|
---|
693 | }
|
---|
694 |
|
---|
695 | }
|
---|