1 | package net.simon04.comfort0;
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2 |
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3 | import static org.openstreetmap.josm.tools.I18n.tr;
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4 |
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5 | import java.awt.event.ActionEvent;
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6 | import java.io.BufferedReader;
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7 | import java.io.IOException;
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8 | import java.nio.charset.Charset;
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9 | import java.nio.file.Files;
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10 | import java.nio.file.Path;
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11 | import java.util.ArrayList;
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12 | import java.util.Collections;
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13 | import java.util.List;
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14 | import java.util.Objects;
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15 |
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16 | import net.simon04.comfort0.level0l.parsergen.Level0LParser;
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17 | import net.simon04.comfort0.level0l.parsergen.ParseException;
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18 | import org.openstreetmap.josm.actions.JosmAction;
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19 | import org.openstreetmap.josm.command.ChangePropertyCommand;
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20 | import org.openstreetmap.josm.command.Command;
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21 | import org.openstreetmap.josm.command.SequenceCommand;
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22 | import org.openstreetmap.josm.data.UndoRedoHandler;
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23 | import org.openstreetmap.josm.data.osm.DataSet;
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24 | import org.openstreetmap.josm.data.osm.OsmPrimitive;
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25 | import org.openstreetmap.josm.data.osm.PrimitiveData;
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26 | import org.openstreetmap.josm.data.osm.RelationData;
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27 | import org.openstreetmap.josm.data.osm.WayData;
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28 | import org.openstreetmap.josm.gui.MainApplication;
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29 | import org.openstreetmap.josm.gui.util.GuiHelper;
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30 | import org.openstreetmap.josm.tools.Logging;
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31 |
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32 | /**
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33 | * Edit the selected objects in an external editor in the Level0L format.
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34 | */
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35 | public class EditLevel0LAction extends JosmAction {
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36 |
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37 | private static final Charset CHARSET = Charset.defaultCharset();
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38 |
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39 | /**
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40 | * Constructs a new {@link EditLevel0LAction}.
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41 | */
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42 | public EditLevel0LAction() {
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43 | super(tr("Edit as Level0L"),
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44 | "theta",
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45 | tr("Edit the selected objects in an external editor in the Level0L format"),
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46 | null, false);
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47 | }
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48 |
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49 | @Override
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50 | public void actionPerformed(ActionEvent e) {
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51 | try {
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52 | editLevel0();
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53 | } catch (Exception ex) {
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54 | Logging.error(ex);
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55 | }
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56 | }
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57 |
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58 | private void editLevel0() throws IOException {
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59 | final DataSet dataSet = MainApplication.getLayerManager().getEditDataSet();
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60 | final Path path = writeLevel0(dataSet);
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61 | final Process editor = new EditorLauncher(path).launch();
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62 | Logging.info("Comfort0: Launching editor on file {0}", path);
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63 | new Thread(() -> awaitEditing(dataSet, path, editor), path.getFileName().toString()).start();
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64 | }
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65 |
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66 | private Path writeLevel0(DataSet dataSet) throws IOException {
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67 | final byte[] level0 = new OsmToLevel0L().visit(dataSet.getSelected())
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68 | .toString()
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69 | .replace("\u200E", "")
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70 | .replace("\u200F", "")
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71 | .getBytes(CHARSET);
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72 | final Path path = Files.createTempFile("josm_level0_", ".txt");
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73 | Files.write(path, level0);
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74 | return path;
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75 | }
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76 |
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77 | private void awaitEditing(DataSet dataSet, Path path, Process editor) {
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78 | try {
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79 | editor.waitFor();
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80 | Logging.info("Comfort0: Editing of file {0} done", path);
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81 | readLevel0(path, dataSet);
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82 | Files.delete(path);
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83 | } catch (Exception ex) {
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84 | Logging.error(ex);
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85 | }
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86 | }
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87 |
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88 | private void readLevel0(Path path, final DataSet dataSet) throws IOException, ParseException {
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89 | final List<PrimitiveData> primitives;
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90 | try (BufferedReader reader = Files.newBufferedReader(path, CHARSET)) {
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91 | primitives = new Level0LParser(reader).primitives();
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92 | }
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93 | Logging.info("Comfort0: Reading file {0} yielded {1} primitives", path, primitives.size());
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94 |
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95 | buildChangeCommands(dataSet, primitives);
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96 | }
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97 |
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98 | private void buildChangeCommands(DataSet dataSet, List<PrimitiveData> primitives) {
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99 | final List<Command> commands = new ArrayList<>();
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100 | for (PrimitiveData fromLevel0L : primitives) {
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101 | final OsmPrimitive fromDataSet = dataSet.getPrimitiveById(fromLevel0L);
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102 |
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103 | // TODO handle way nodes, relation members
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104 | if (fromLevel0L instanceof WayData) {
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105 | ((WayData) fromLevel0L).setNodeIds(Collections.emptyList());
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106 | } else if (fromLevel0L instanceof RelationData) {
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107 | ((RelationData) fromLevel0L).setMembers(Collections.emptyList());
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108 | }
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109 |
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110 | final OsmPrimitive newInstance = fromLevel0L.getType().newVersionedInstance(fromDataSet.getUniqueId(), fromDataSet.getVersion());
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111 | newInstance.load(fromLevel0L);
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112 |
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113 | final boolean equalKeys = Objects.equals(newInstance.getKeys(), fromDataSet.getKeys());
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114 | if (!equalKeys) {
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115 | final ChangePropertyCommand command = new ChangePropertyCommand(Collections.singleton(fromDataSet), newInstance.getKeys());
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116 | commands.add(command);
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117 | }
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118 | }
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119 |
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120 | Logging.info("Comfort0: Changing {0} primitives", commands.size());
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121 | if (commands.isEmpty()) {
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122 | return;
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123 | }
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124 | final SequenceCommand command = new SequenceCommand("Comfort0", commands);
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125 | GuiHelper.runInEDT(() -> UndoRedoHandler.getInstance().add(command));
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126 | }
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127 | }
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