| 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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