1 | // License: GPL. For details, see LICENSE file.
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2 | package reverter;
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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.ArrayList;
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8 | import java.util.Collection;
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9 | import java.util.Collections;
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10 | import java.util.List;
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11 | import java.util.concurrent.Callable;
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12 | import java.util.stream.Collectors;
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13 |
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14 | import javax.swing.JOptionPane;
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15 |
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16 | import org.openstreetmap.josm.command.Command;
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17 | import org.openstreetmap.josm.command.conflict.ConflictAddCommand;
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18 | import org.openstreetmap.josm.data.UndoRedoHandler;
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19 | import org.openstreetmap.josm.data.osm.DataSet;
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20 | import org.openstreetmap.josm.gui.MainApplication;
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21 | import org.openstreetmap.josm.gui.Notification;
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22 | import org.openstreetmap.josm.gui.PleaseWaitRunnable;
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23 | import org.openstreetmap.josm.gui.layer.OsmDataLayer;
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24 | import org.openstreetmap.josm.gui.progress.ProgressMonitor;
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25 | import org.openstreetmap.josm.gui.util.GuiHelper;
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26 | import org.openstreetmap.josm.io.OsmTransferException;
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27 | import org.openstreetmap.josm.tools.Logging;
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28 | import org.openstreetmap.josm.tools.UserCancelException;
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29 |
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30 | import reverter.ChangesetReverter.RevertType;
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31 |
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32 | public class RevertChangesetTask extends PleaseWaitRunnable {
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33 | private final Collection<Integer> changesetIds;
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34 | private final RevertType revertType;
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35 | private boolean newLayer;
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36 | private final DataSet oldDataSet;
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37 |
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38 | private ChangesetReverter rev;
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39 | private boolean downloadConfirmed;
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40 | private int numberOfConflicts;
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41 |
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42 | public RevertChangesetTask(int changesetId, RevertType revertType) {
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43 | this(changesetId, revertType, false);
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44 | }
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45 |
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46 | public RevertChangesetTask(int changesetId, RevertType revertType, boolean autoConfirmDownload) {
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47 | this(changesetId, revertType, autoConfirmDownload, false);
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48 | }
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49 |
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50 | public RevertChangesetTask(int changesetId, RevertType revertType, boolean autoConfirmDownload, boolean newLayer) {
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51 | this(Collections.singleton(changesetId), revertType, autoConfirmDownload, newLayer);
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52 | }
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53 |
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54 | public RevertChangesetTask(Collection<Integer> changesetIds, RevertType revertType, boolean autoConfirmDownload, boolean newLayer) {
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55 | this(null, changesetIds, revertType, autoConfirmDownload, newLayer);
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56 | }
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57 |
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58 | /**
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59 | * Create a new task for reverting a changeset
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60 | * @param progressMonitor The {@link ProgressMonitor} to use. May be {@code null}
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61 | * @param changesetIds The changeset ids to revert
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62 | * @param revertType The type of revert to do
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63 | * @param autoConfirmDownload {@code true} if the user has already indicated that they want to download missing data
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64 | * @param newLayer {@code true} if the user wants the reversion to be on a new layer
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65 | */
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66 | public RevertChangesetTask(ProgressMonitor progressMonitor, Collection<Integer> changesetIds, RevertType revertType, boolean autoConfirmDownload, boolean newLayer) {
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67 | super(tr("Reverting..."), progressMonitor, false);
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68 | this.changesetIds = new ArrayList<>(changesetIds);
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69 | this.revertType = revertType;
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70 | this.downloadConfirmed = autoConfirmDownload;
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71 | this.newLayer = newLayer;
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72 | OsmDataLayer editLayer = MainApplication.getLayerManager().getEditLayer();
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73 | this.oldDataSet = editLayer == null ? null : editLayer.data;
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74 | }
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75 |
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76 | private boolean checkAndDownloadMissing() throws OsmTransferException {
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77 | if (!rev.hasMissingObjects()) return true;
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78 | if (!downloadConfirmed) {
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79 | final Integer selectedOption = GuiHelper.runInEDTAndWaitAndReturn(new Callable<Integer>() {
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80 | @Override
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81 | public Integer call() throws Exception {
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82 | return JOptionPane.showConfirmDialog(MainApplication.getMainFrame(),
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83 | tr("This changeset has objects that are not present in current dataset.\n" +
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84 | "It is needed to download them before reverting. Do you want to continue?"),
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85 | tr("Confirm"), JOptionPane.YES_NO_OPTION);
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86 | }
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87 | });
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88 | downloadConfirmed = selectedOption != null && selectedOption == JOptionPane.YES_OPTION;
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89 | if (!downloadConfirmed) return false;
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90 | }
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91 | progressMonitor.setTicks(0);
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92 | rev.downloadMissingPrimitives(progressMonitor.createSubTaskMonitor(ProgressMonitor.ALL_TICKS, false));
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93 | return !progressMonitor.isCanceled();
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94 | }
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95 |
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96 | @Override
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97 | protected void realRun() throws OsmTransferException {
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98 | numberOfConflicts = 0;
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99 | final List<Command> allcmds = new ArrayList<>();
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100 | Logging.info("Reverting {0} changeset(s): {1}",
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101 | changesetIds.size(), changesetIds.stream().map(Long::toString).collect(Collectors.toList()));
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102 | for (int changesetId : changesetIds) {
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103 | try {
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104 | Logging.info("Reverting changeset {0}", Long.toString(changesetId));
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105 | RevertChangesetCommand cmd = revertChangeset(changesetId);
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106 | if (cmd != null) {
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107 | allcmds.add(cmd);
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108 | }
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109 | Logging.info("Reverted changeset {0}", Long.toString(changesetId));
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110 | newLayer = false; // reuse layer for subsequent reverts
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111 | } catch (OsmTransferException e) {
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112 | rollback(allcmds);
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113 | Logging.error(e);
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114 | throw e;
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115 | } catch (UserCancelException e) {
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116 | rollback(allcmds);
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117 | GuiHelper.executeByMainWorkerInEDT(() -> new Notification(tr("Revert was canceled")).show());
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118 | Logging.trace(e);
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119 | return;
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120 | }
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121 | }
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122 | if (!allcmds.isEmpty()) {
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123 | Command cmd = allcmds.size() == 1 ? allcmds.get(0) : new RevertChangesetCommand(tr("Revert changesets"), allcmds);
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124 | GuiHelper.runInEDT(() -> {
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125 | UndoRedoHandler.getInstance().add(cmd, false);
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126 | if (numberOfConflicts > 0) {
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127 | MainApplication.getMap().conflictDialog.warnNumNewConflicts(numberOfConflicts);
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128 | }
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129 | });
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130 | }
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131 | }
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132 |
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133 | private static void rollback(List<Command> allcmds) {
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134 | if (!allcmds.isEmpty()) {
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135 | GuiHelper.runInEDT(() -> UndoRedoHandler.getInstance().undo(allcmds.size()));
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136 | }
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137 | }
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138 |
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139 | private RevertChangesetCommand revertChangeset(int changesetId) throws OsmTransferException, UserCancelException {
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140 | progressMonitor.indeterminateSubTask(tr("Reverting changeset {0}", Long.toString(changesetId)));
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141 | try {
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142 | rev = new ChangesetReverter(changesetId, revertType, newLayer, oldDataSet, progressMonitor.createSubTaskMonitor(0, true));
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143 | } catch (final RevertRedactedChangesetException e) {
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144 | GuiHelper.runInEDT(() -> new Notification(
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145 | e.getMessage()+"<br>"+
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146 | tr("See {0}", "<a href=\"https://www.openstreetmap.org/redactions\">https://www.openstreetmap.org/redactions</a>"))
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147 | .setIcon(JOptionPane.ERROR_MESSAGE)
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148 | .setDuration(Notification.TIME_LONG)
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149 | .show());
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150 | progressMonitor.cancel();
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151 | }
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152 | if (progressMonitor.isCanceled())
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153 | throw new UserCancelException();
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154 | int numOldConflicts = oldDataSet == null ? 0 : oldDataSet.getConflicts().size();
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155 | // Check missing objects
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156 | rev.checkMissingCreated();
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157 | rev.checkMissingUpdated();
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158 | if (rev.hasMissingObjects()) {
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159 | // If missing created or updated objects, ask user
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160 | rev.checkMissingDeleted();
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161 | if (!checkAndDownloadMissing())
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162 | throw new UserCancelException();
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163 | } else {
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164 | // Don't ask user to download primitives going to be undeleted
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165 | rev.checkMissingDeleted();
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166 | rev.downloadMissingPrimitives(progressMonitor.createSubTaskMonitor(ProgressMonitor.ALL_TICKS, false));
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167 | }
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168 | int numConflicts = oldDataSet == null ? 0 : oldDataSet.getConflicts().size();
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169 | if (numConflicts > numOldConflicts) {
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170 | GuiHelper.runInEDT(() -> new Notification(tr("Please solve conflicts and maybe try again to revert."))
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171 | .setIcon(JOptionPane.ERROR_MESSAGE)
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172 | .show());
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173 | return null;
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174 | }
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175 |
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176 | if (progressMonitor.isCanceled())
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177 | throw new UserCancelException();
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178 | progressMonitor.setTicks(0);
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179 | rev.downloadObjectsHistory(progressMonitor.createSubTaskMonitor(ProgressMonitor.ALL_TICKS, false));
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180 | if (progressMonitor.isCanceled())
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181 | throw new UserCancelException();
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182 | if (!checkAndDownloadMissing())
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183 | throw new UserCancelException();
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184 | progressMonitor.setTicks(0);
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185 | rev.fixNodesWithoutCoordinates(progressMonitor.createSubTaskMonitor(ProgressMonitor.ALL_TICKS, false));
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186 | if (progressMonitor.isCanceled())
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187 | throw new UserCancelException();
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188 | List<Command> cmds = rev.getCommands();
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189 | if (cmds.isEmpty()) {
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190 | Logging.warn(MessageFormat.format("No revert commands found for changeset {0}", Long.toString(changesetId)));
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191 | return null;
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192 | }
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193 | GuiHelper.runInEDT(() -> {
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194 | for (Command c : cmds) {
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195 | if (c instanceof ConflictAddCommand) {
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196 | numberOfConflicts++;
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197 | }
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198 | c.executeCommand();
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199 | }
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200 | });
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201 | final String desc;
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202 | if (revertType == RevertType.FULL) {
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203 | desc = tr("Revert changeset {0}", String.valueOf(changesetId));
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204 | } else {
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205 | desc = tr("Partially revert changeset {0}", String.valueOf(changesetId));
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206 | }
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207 | return new RevertChangesetCommand(desc, cmds);
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208 | }
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209 |
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210 | @Override
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211 | protected void cancel() {
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212 | // nothing to do
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213 | }
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214 |
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215 | @Override
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216 | protected void finish() {
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217 | // nothing to do
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218 |
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219 | }
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220 |
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221 | /**
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222 | * Return number of conflicts for this changeset.
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223 | * @return number of conflicts for this changeset
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224 | */
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225 | public final int getNumberOfConflicts() {
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226 | return numberOfConflicts;
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227 | }
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228 | }
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