1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.actions.upload;
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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.awt.BorderLayout;
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7 | import java.awt.Dimension;
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8 | import java.util.Iterator;
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9 | import java.util.List;
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10 |
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11 | import javax.swing.JLabel;
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12 | import javax.swing.JPanel;
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13 | import javax.swing.JScrollPane;
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14 | import javax.swing.JTable;
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15 | import javax.swing.table.DefaultTableModel;
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16 |
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17 | import org.openstreetmap.josm.Main;
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18 | import org.openstreetmap.josm.data.APIDataSet;
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19 | import org.openstreetmap.josm.data.osm.Relation;
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20 | import org.openstreetmap.josm.gui.ExtendedDialog;
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21 | import org.openstreetmap.josm.gui.OsmPrimitivRenderer;
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22 | import org.openstreetmap.josm.tools.WindowGeometry;
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23 |
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24 | /**
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25 | * This upload hook reorders the list of new relations to upload such that child
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26 | * relations are uploaded before parent relations. It also checks for cyclic
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27 | * dependencies in the list of new relations.
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28 | *
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29 | *
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30 | */
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31 | public class RelationUploadOrderHook implements UploadHook {
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32 |
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33 | /**
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34 | * builds the panel which warns users about a cyclic dependency
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35 | *
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36 | * @param dep the list of relations with a cyclic dependency
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37 | * @return the panel
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38 | */
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39 | protected JPanel buildWarningPanel(List<Relation> dep) {
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40 | JPanel pnl = new JPanel();
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41 | pnl.setLayout(new BorderLayout());
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42 | String msg = tr("<html>{0} relations build a cycle because they refer to each other.<br>"
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43 | + "JOSM cannot upload them. Please edit the relations and remove the "
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44 | + "cyclic dependency.</html>", dep.size()-1);
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45 | pnl.add(new JLabel(msg), BorderLayout.NORTH);
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46 |
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47 | DefaultTableModel model = new DefaultTableModel();
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48 | model.addColumn(tr("Relation ..."));
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49 | model.addColumn(tr("... refers to relation"));
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50 | for (int i=0; i<dep.size()-1;i++) {
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51 | Relation r1 = dep.get(i);
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52 | Relation r2 = dep.get(i+1);
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53 | model.addRow(new Relation[] {r1,r2});
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54 | }
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55 | JTable tbl = new JTable(model);
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56 | OsmPrimitivRenderer renderer = new OsmPrimitivRenderer();
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57 | tbl.getColumnModel().getColumn(0).setCellRenderer(renderer);
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58 | tbl.getColumnModel().getColumn(1).setCellRenderer(renderer);
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59 | pnl.add(new JScrollPane(tbl), BorderLayout.CENTER);
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60 | return pnl;
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61 | }
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62 |
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63 | /**
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64 | * Warns the user if a cyclic dependency is detected
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65 | *
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66 | * @param e the cyclic dependency exception
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67 | */
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68 | protected void warnCyclicUploadDependency(CyclicUploadDependencyException e) {
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69 | List<Relation> dep = e.getCyclicUploadDependency();
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70 | Relation last = dep.get(dep.size() -1);
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71 | Iterator<Relation> it = dep.iterator();
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72 | while(it.hasNext()) {
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73 | if (it.next() != last) {
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74 | it.remove();
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75 | } else {
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76 | break;
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77 | }
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78 | }
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79 | JPanel pnl = buildWarningPanel(dep);
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80 | ExtendedDialog dialog = new ExtendedDialog(
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81 | Main.parent,
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82 | tr("Cycling dependencies"),
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83 | new String[] {tr("OK")}
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84 | );
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85 | dialog.setContent(pnl, false /* don't embed in scroll pane */);
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86 | dialog.setButtonIcons(new String[] {"ok"});
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87 | dialog.setRememberWindowGeometry(
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88 | getClass().getName() + ".geometry",
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89 | WindowGeometry.centerInWindow(Main.parent, new Dimension(300, 300))
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90 | );
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91 | dialog.showDialog();
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92 | }
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93 |
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94 | @Override
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95 | public boolean checkUpload(APIDataSet apiDataSet) {
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96 | try {
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97 | apiDataSet.adjustRelationUploadOrder();
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98 | return true;
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99 | } catch(CyclicUploadDependencyException e) {
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100 | warnCyclicUploadDependency(e);
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101 | return false;
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102 | }
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103 | }
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104 | }
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