[5927] | 1 | // License: GPL. For details, see LICENSE file.
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[4530] | 2 | package org.openstreetmap.josm.actions.downloadtasks;
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| 3 |
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[6248] | 4 | import static org.openstreetmap.josm.tools.I18n.tr;
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| 5 |
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[4734] | 6 | import java.util.Date;
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[5476] | 7 | import java.util.HashMap;
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[4734] | 8 | import java.util.Iterator;
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| 9 | import java.util.List;
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[5476] | 10 | import java.util.Map;
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[4530] | 11 | import java.util.concurrent.Future;
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| 12 |
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| 13 | import org.openstreetmap.josm.Main;
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| 14 | import org.openstreetmap.josm.data.Bounds;
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| 15 | import org.openstreetmap.josm.data.osm.DataSet;
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[5476] | 16 | import org.openstreetmap.josm.data.osm.Node;
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[4734] | 17 | import org.openstreetmap.josm.data.osm.NodeData;
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| 18 | import org.openstreetmap.josm.data.osm.OsmPrimitive;
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[5476] | 19 | import org.openstreetmap.josm.data.osm.OsmPrimitiveType;
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[4734] | 20 | import org.openstreetmap.josm.data.osm.PrimitiveData;
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| 21 | import org.openstreetmap.josm.data.osm.PrimitiveId;
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| 22 | import org.openstreetmap.josm.data.osm.RelationData;
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[5476] | 23 | import org.openstreetmap.josm.data.osm.RelationMemberData;
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[4734] | 24 | import org.openstreetmap.josm.data.osm.WayData;
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| 25 | import org.openstreetmap.josm.data.osm.history.History;
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| 26 | import org.openstreetmap.josm.data.osm.history.HistoryDataSet;
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| 27 | import org.openstreetmap.josm.data.osm.history.HistoryDataSetListener;
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| 28 | import org.openstreetmap.josm.data.osm.history.HistoryNode;
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| 29 | import org.openstreetmap.josm.data.osm.history.HistoryOsmPrimitive;
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| 30 | import org.openstreetmap.josm.data.osm.history.HistoryRelation;
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| 31 | import org.openstreetmap.josm.data.osm.history.HistoryWay;
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| 32 | import org.openstreetmap.josm.gui.history.HistoryLoadTask;
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[4530] | 33 | import org.openstreetmap.josm.gui.progress.ProgressMonitor;
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| 34 | import org.openstreetmap.josm.io.OsmServerLocationReader;
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| 35 | import org.openstreetmap.josm.io.OsmServerReader;
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| 36 | import org.openstreetmap.josm.io.OsmTransferException;
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| 37 |
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[5921] | 38 | /**
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| 39 | * Task allowing to download OsmChange data (http://wiki.openstreetmap.org/wiki/OsmChange).
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| 40 | * @since 4530
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| 41 | */
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[4530] | 42 | public class DownloadOsmChangeTask extends DownloadOsmTask {
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| 43 |
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| 44 | @Override
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[6031] | 45 | public String[] getPatterns() {
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[6920] | 46 | return new String[]{"https?://.*/api/0.6/changeset/\\p{Digit}+/download", // OSM API 0.6 changesets
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[6031] | 47 | "https?://.*/.*\\.osc" // Remote .osc files
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| 48 | };
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[4530] | 49 | }
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| 50 |
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[6031] | 51 | @Override
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| 52 | public String getTitle() {
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| 53 | return tr("Download OSM Change");
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| 54 | }
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[6920] | 55 |
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[4530] | 56 | @Override
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| 57 | public Future<?> download(boolean newLayer, Bounds downloadArea,
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| 58 | ProgressMonitor progressMonitor) {
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| 59 | return null;
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| 60 | }
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| 61 |
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| 62 | @Override
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| 63 | public Future<?> loadUrl(boolean new_layer, String url,
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| 64 | ProgressMonitor progressMonitor) {
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| 65 | downloadTask = new DownloadTask(new_layer,
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| 66 | new OsmServerLocationReader(url),
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| 67 | progressMonitor);
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[5345] | 68 | // Extract .osc filename from URL to set the new layer name
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[5486] | 69 | extractOsmFilename("https?://.*/(.*\\.osc)", url);
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[4530] | 70 | return Main.worker.submit(downloadTask);
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| 71 | }
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[4874] | 72 |
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[4530] | 73 | protected class DownloadTask extends DownloadOsmTask.DownloadTask {
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| 74 |
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| 75 | public DownloadTask(boolean newLayer, OsmServerReader reader,
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| 76 | ProgressMonitor progressMonitor) {
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| 77 | super(newLayer, reader, progressMonitor);
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| 78 | }
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| 79 |
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| 80 | @Override
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| 81 | protected DataSet parseDataSet() throws OsmTransferException {
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| 82 | return reader.parseOsmChange(progressMonitor.createSubTaskMonitor(ProgressMonitor.ALL_TICKS, false));
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| 83 | }
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| 84 |
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| 85 | @Override
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| 86 | protected void finish() {
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| 87 | super.finish();
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[4661] | 88 | if (isFailed() || isCanceled() || downloadedData == null)
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| 89 | return; // user canceled download or error occurred
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[4734] | 90 | try {
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[5476] | 91 | // A changeset does not contain all referred primitives, this is the map of incomplete ones
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[4734] | 92 | // For each incomplete primitive, we'll have to get its state at date it was referred
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[7005] | 93 | Map<OsmPrimitive, Date> toLoad = new HashMap<>();
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[4734] | 94 | for (OsmPrimitive p : downloadedData.allNonDeletedPrimitives()) {
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| 95 | if (p.isIncomplete()) {
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| 96 | Date timestamp = null;
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| 97 | for (OsmPrimitive ref : p.getReferrers()) {
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| 98 | if (!ref.isTimestampEmpty()) {
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| 99 | timestamp = ref.getTimestamp();
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| 100 | break;
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| 101 | }
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| 102 | }
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[5476] | 103 | toLoad.put(p, timestamp);
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[4734] | 104 | }
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| 105 | }
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| 106 | if (isCanceled()) return;
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| 107 | // Let's load all required history
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[5476] | 108 | Main.worker.submit(new HistoryLoaderAndListener(toLoad));
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[4734] | 109 | } catch (Exception e) {
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| 110 | rememberException(e);
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| 111 | setFailed(true);
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| 112 | }
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[4530] | 113 | }
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| 114 | }
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[6920] | 115 |
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[4734] | 116 | /**
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[5476] | 117 | * Loads history and updates incomplete primitives.
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[4734] | 118 | */
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[5476] | 119 | private static class HistoryLoaderAndListener extends HistoryLoadTask implements HistoryDataSetListener {
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[4734] | 120 |
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[5476] | 121 | private final Map<OsmPrimitive, Date> toLoad;
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[4874] | 122 |
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[5476] | 123 | public HistoryLoaderAndListener(Map<OsmPrimitive, Date> toLoad) {
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| 124 | this.toLoad = toLoad;
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| 125 | add(toLoad.keySet());
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| 126 | // Updating process is done after all history requests have been made
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| 127 | HistoryDataSet.getInstance().addHistoryDataSetListener(this);
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[4734] | 128 | }
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| 129 |
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| 130 | @Override
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| 131 | public void historyUpdated(HistoryDataSet source, PrimitiveId id) {
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[7005] | 132 | Map<OsmPrimitive, Date> toLoadNext = new HashMap<>();
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[5476] | 133 | for (Iterator<OsmPrimitive> it = toLoad.keySet().iterator(); it.hasNext();) {
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| 134 | OsmPrimitive p = it.next();
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| 135 | History history = source.getHistory(p.getPrimitiveId());
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| 136 | Date date = toLoad.get(p);
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[4734] | 137 | // If the history has been loaded and a timestamp is known
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[5476] | 138 | if (history != null && date != null) {
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[4734] | 139 | // Lookup for the primitive version at the specified timestamp
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[5476] | 140 | HistoryOsmPrimitive hp = history.getByDate(date);
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[4734] | 141 | if (hp != null) {
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| 142 | PrimitiveData data = null;
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[4874] | 143 |
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[5476] | 144 | switch (p.getType()) {
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[4874] | 145 | case NODE:
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| 146 | data = new NodeData();
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| 147 | ((NodeData)data).setCoor(((HistoryNode)hp).getCoords());
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| 148 | break;
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| 149 | case WAY:
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| 150 | data = new WayData();
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[5476] | 151 | List<Long> nodeIds = ((HistoryWay)hp).getNodes();
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| 152 | ((WayData)data).setNodes(nodeIds);
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| 153 | // Find incomplete nodes to load at next run
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| 154 | for (Long nodeId : nodeIds) {
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| 155 | if (p.getDataSet().getPrimitiveById(nodeId, OsmPrimitiveType.NODE) == null) {
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| 156 | Node n = new Node(nodeId);
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| 157 | p.getDataSet().addPrimitive(n);
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| 158 | toLoadNext.put(n, date);
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| 159 | }
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| 160 | }
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[4874] | 161 | break;
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| 162 | case RELATION:
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| 163 | data = new RelationData();
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[5476] | 164 | List<RelationMemberData> members = ((HistoryRelation)hp).getMembers();
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| 165 | ((RelationData)data).setMembers(members);
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[4874] | 166 | break;
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[5476] | 167 | default: throw new AssertionError("Unknown primitive type");
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[4734] | 168 | }
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[4874] | 169 |
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[4734] | 170 | data.setUser(hp.getUser());
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[5171] | 171 | try {
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| 172 | data.setVisible(hp.isVisible());
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| 173 | } catch (IllegalStateException e) {
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[6248] | 174 | Main.error("Cannot change visibility for "+p+": "+e.getMessage());
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[5171] | 175 | }
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[4734] | 176 | data.setTimestamp(hp.getTimestamp());
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| 177 | data.setKeys(hp.getTags());
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[5921] | 178 | data.setOsmId(hp.getId(), (int) hp.getVersion());
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[4874] | 179 |
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[4734] | 180 | // Load the history data
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[5476] | 181 | try {
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| 182 | p.load(data);
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| 183 | // Forget this primitive
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| 184 | it.remove();
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| 185 | } catch (AssertionError e) {
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[6248] | 186 | Main.error("Cannot load "+p + ": " + e.getMessage());
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[5476] | 187 | }
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[4734] | 188 | }
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| 189 | }
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| 190 | }
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[5476] | 191 | source.removeHistoryDataSetListener(this);
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| 192 | if (toLoadNext.isEmpty()) {
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[4734] | 193 | // No more primitive to update. Processing is finished
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| 194 | // Be sure all updated primitives are correctly drawn
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| 195 | Main.map.repaint();
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[5476] | 196 | } else {
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| 197 | // Some primitives still need to be loaded
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| 198 | // Let's load all required history
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| 199 | Main.worker.submit(new HistoryLoaderAndListener(toLoadNext));
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[4734] | 200 | }
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| 201 | }
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| 202 |
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| 203 | @Override
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| 204 | public void historyDataSetCleared(HistoryDataSet source) {
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| 205 | }
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| 206 | }
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[4530] | 207 | }
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