1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.gui.conflict.pair.tags;
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3 |
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4 | import java.beans.PropertyChangeEvent;
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5 | import java.beans.PropertyChangeListener;
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6 | import java.util.ArrayList;
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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.Set;
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10 |
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11 | import javax.swing.table.DefaultTableModel;
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12 |
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13 | import org.openstreetmap.josm.command.TagConflictResolveCommand;
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14 | import org.openstreetmap.josm.data.conflict.Conflict;
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15 | import org.openstreetmap.josm.data.osm.OsmPrimitive;
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16 | import org.openstreetmap.josm.gui.conflict.pair.MergeDecisionType;
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17 |
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18 | /**
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19 | * This is the {@link TableModel} used in the tables of the {@link TagMerger}.
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20 | *
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21 | * The model can {@link #populate(OsmPrimitive, OsmPrimitive)} itself from the conflicts
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22 | * in the tag sets of two {@link OsmPrimitive}s. Internally, it keeps a list of {@link TagMergeItem}s.
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23 | *
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24 | * {@link #decide(int, MergeDecisionType)} and {@link #decide(int[], MergeDecisionType)} can be used
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25 | * to remember a merge decision for a specific row in the model.
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26 | *
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27 | * The model notifies {@link PropertyChangeListener}s about updates of the number of
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28 | * undecided tags (see {@link #PROP_NUM_UNDECIDED_TAGS}).
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29 | *
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30 | */
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31 | public class TagMergeModel extends DefaultTableModel {
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32 | static public final String PROP_NUM_UNDECIDED_TAGS = TagMergeModel.class.getName() + ".numUndecidedTags";
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33 |
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34 | /** the list of tag merge items */
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35 | private final List<TagMergeItem> tagMergeItems;
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36 |
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37 | /** the property change listeners */
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38 | private final List<PropertyChangeListener> listeners;
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39 |
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40 | private int numUndecidedTags = 0;
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41 |
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42 | public TagMergeModel() {
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43 | tagMergeItems = new ArrayList<TagMergeItem>();
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44 | listeners = new ArrayList<PropertyChangeListener>();
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45 | }
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46 |
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47 | public void addPropertyChangeListener(PropertyChangeListener listener) {
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48 | synchronized(listeners) {
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49 | if (listener == null) return;
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50 | if (listeners.contains(listener)) return;
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51 | listeners.add(listener);
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52 | }
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53 | }
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54 |
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55 | public void removePropertyChangeListener(PropertyChangeListener listener) {
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56 | synchronized(listeners) {
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57 | if (listener == null) return;
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58 | if (!listeners.contains(listener)) return;
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59 | listeners.remove(listener);
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60 | }
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61 | }
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62 |
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63 | /**
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64 | * notifies {@link PropertyChangeListener}s about an update of {@link TagMergeModel#PROP_NUM_UNDECIDED_TAGS}
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65 |
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66 | * @param oldValue the old value
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67 | * @param newValue the new value
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68 | */
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69 | protected void fireNumUndecidedTagsChanged(int oldValue, int newValue) {
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70 | PropertyChangeEvent evt = new PropertyChangeEvent(this,PROP_NUM_UNDECIDED_TAGS,oldValue, newValue);
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71 | synchronized(listeners) {
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72 | for(PropertyChangeListener l : listeners) {
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73 | l.propertyChange(evt);
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74 | }
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75 | }
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76 | }
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77 |
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78 | /**
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79 | * refreshes the number of undecided tag conflicts after an update in the list of
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80 | * {@link TagMergeItem}s. Notifies {@link PropertyChangeListener} if necessary.
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81 | *
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82 | */
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83 | protected void refreshNumUndecidedTags() {
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84 | int newValue=0;
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85 | for(TagMergeItem item: tagMergeItems) {
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86 | if (MergeDecisionType.UNDECIDED.equals(item.getMergeDecision())) {
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87 | newValue++;
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88 | }
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89 | }
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90 | int oldValue = numUndecidedTags;
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91 | numUndecidedTags = newValue;
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92 | fireNumUndecidedTagsChanged(oldValue, numUndecidedTags);
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93 |
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94 | }
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95 |
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96 | /**
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97 | * Populate the model with conflicts between the tag sets of the two
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98 | * {@link OsmPrimitive} <code>my</code> and <code>their</code>.
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99 | *
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100 | * @param my my primitive (i.e. the primitive from the local dataset)
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101 | * @param their their primitive (i.e. the primitive from the server dataset)
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102 | *
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103 | */
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104 | public void populate(OsmPrimitive my, OsmPrimitive their) {
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105 | tagMergeItems.clear();
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106 | Set<String> keys = new HashSet<String>();
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107 | keys.addAll(my.keySet());
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108 | keys.addAll(their.keySet());
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109 | for(String key : keys) {
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110 | String myValue = my.get(key);
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111 | String theirValue = their.get(key);
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112 | if (myValue == null || theirValue == null || ! myValue.equals(theirValue)) {
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113 | tagMergeItems.add(
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114 | new TagMergeItem(key, my, their)
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115 | );
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116 | }
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117 | }
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118 | fireTableDataChanged();
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119 | refreshNumUndecidedTags();
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120 | }
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121 |
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122 | /**
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123 | * add a {@link TagMergeItem} to the model
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124 | *
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125 | * @param item the item
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126 | */
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127 | public void addItem(TagMergeItem item) {
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128 | if (item != null) {
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129 | tagMergeItems.add(item);
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130 | fireTableDataChanged();
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131 | refreshNumUndecidedTags();
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132 | }
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133 | }
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134 |
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135 | protected void rememberDecision(int row, MergeDecisionType decision) {
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136 | TagMergeItem item = tagMergeItems.get(row);
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137 | item.decide(decision);
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138 | }
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139 |
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140 | /**
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141 | * set the merge decision of the {@link TagMergeItem} in row <code>row</code>
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142 | * to <code>decision</code>.
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143 | *
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144 | * @param row the row
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145 | * @param decision the decision
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146 | */
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147 | public void decide(int row, MergeDecisionType decision) {
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148 | rememberDecision(row, decision);
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149 | fireTableRowsUpdated(row, row);
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150 | refreshNumUndecidedTags();
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151 | }
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152 |
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153 | /**
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154 | * set the merge decision of all {@link TagMergeItem} given by indices in <code>rows</code>
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155 | * to <code>decision</code>.
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156 | *
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157 | * @param row the array of row indices
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158 | * @param decision the decision
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159 | */
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160 |
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161 | public void decide(int [] rows, MergeDecisionType decision) {
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162 | if (rows == null || rows.length == 0)
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163 | return;
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164 | for (int row : rows) {
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165 | rememberDecision(row, decision);
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166 | }
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167 | fireTableDataChanged();
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168 | refreshNumUndecidedTags();
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169 | }
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170 |
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171 | @Override
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172 | public int getRowCount() {
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173 | return tagMergeItems == null ? 0 : tagMergeItems.size();
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174 | }
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175 |
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176 | @Override
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177 | public Object getValueAt(int row, int column) {
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178 | // return the tagMergeItem for both columns. The cell
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179 | // renderer will dispatch on the column index and get
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180 | // the key or the value from the TagMergeItem
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181 | //
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182 | return tagMergeItems.get(row);
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183 | }
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184 |
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185 | @Override
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186 | public boolean isCellEditable(int row, int column) {
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187 | return false;
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188 | }
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189 |
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190 | public TagConflictResolveCommand buildResolveCommand(Conflict<? extends OsmPrimitive> conflict) {
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191 | return new TagConflictResolveCommand(conflict, tagMergeItems);
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192 | }
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193 |
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194 | public boolean isResolvedCompletely() {
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195 | for (TagMergeItem item: tagMergeItems) {
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196 | if (item.getMergeDecision().equals(MergeDecisionType.UNDECIDED))
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197 | return false;
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198 | }
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199 | return true;
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200 | }
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201 |
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202 | public int getNumResolvedConflicts() {
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203 | int n = 0;
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204 | for (TagMergeItem item: tagMergeItems) {
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205 | if (!item.getMergeDecision().equals(MergeDecisionType.UNDECIDED)) {
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206 | n++;
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207 | }
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208 | }
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209 | return n;
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210 |
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211 | }
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212 |
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213 | public int getFirstUndecided(int startIndex) {
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214 | for (int i=startIndex; i<tagMergeItems.size(); i++) {
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215 | if (tagMergeItems.get(i).getMergeDecision() == MergeDecisionType.UNDECIDED)
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216 | return i;
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217 | }
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218 | return -1;
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219 | }
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220 | }
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