1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.gui.io.importexport;
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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.io.File;
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7 | import java.io.IOException;
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8 | import java.io.InputStream;
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9 |
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10 | import javax.swing.JOptionPane;
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11 |
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12 | import org.openstreetmap.josm.Main;
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13 | import org.openstreetmap.josm.actions.ExtensionFileFilter;
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14 | import org.openstreetmap.josm.data.gpx.GpxData;
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15 | import org.openstreetmap.josm.gui.MainApplication;
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16 | import org.openstreetmap.josm.gui.layer.GpxLayer;
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17 | import org.openstreetmap.josm.gui.layer.markerlayer.MarkerLayer;
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18 | import org.openstreetmap.josm.gui.progress.ProgressMonitor;
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19 | import org.openstreetmap.josm.gui.util.GuiHelper;
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20 | import org.openstreetmap.josm.io.Compression;
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21 | import org.openstreetmap.josm.io.GpxReader;
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22 | import org.openstreetmap.josm.tools.Logging;
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23 | import org.xml.sax.SAXException;
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24 |
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25 | /**
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26 | * File importer allowing to import GPX files (*.gpx/gpx.gz files).
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27 | *
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28 | */
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29 | public class GpxImporter extends FileImporter {
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30 |
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31 | /**
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32 | * Utility class containing imported GPX and marker layers, and a task to run after they are added to MapView.
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33 | */
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34 | public static class GpxImporterData {
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35 | /**
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36 | * The imported GPX layer. May be null if no GPX data.
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37 | */
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38 | private final GpxLayer gpxLayer;
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39 | /**
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40 | * The imported marker layer. May be null if no marker.
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41 | */
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42 | private final MarkerLayer markerLayer;
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43 | /**
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44 | * The task to run after GPX and/or marker layer has been added to MapView.
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45 | */
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46 | private final Runnable postLayerTask;
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47 |
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48 | /**
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49 | * Constructs a new {@code GpxImporterData}.
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50 | * @param gpxLayer The imported GPX layer. May be null if no GPX data.
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51 | * @param markerLayer The imported marker layer. May be null if no marker.
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52 | * @param postLayerTask The task to run after GPX and/or marker layer has been added to MapView.
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53 | */
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54 | public GpxImporterData(GpxLayer gpxLayer, MarkerLayer markerLayer, Runnable postLayerTask) {
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55 | this.gpxLayer = gpxLayer;
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56 | this.markerLayer = markerLayer;
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57 | this.postLayerTask = postLayerTask;
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58 | }
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59 |
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60 | /**
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61 | * Returns the imported GPX layer. May be null if no GPX data.
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62 | * @return the imported GPX layer. May be null if no GPX data.
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63 | */
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64 | public GpxLayer getGpxLayer() {
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65 | return gpxLayer;
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66 | }
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67 |
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68 | /**
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69 | * Returns the imported marker layer. May be null if no marker.
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70 | * @return the imported marker layer. May be null if no marker.
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71 | */
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72 | public MarkerLayer getMarkerLayer() {
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73 | return markerLayer;
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74 | }
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75 |
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76 | /**
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77 | * Returns the task to run after GPX and/or marker layer has been added to MapView.
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78 | * @return the task to run after GPX and/or marker layer has been added to MapView.
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79 | */
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80 | public Runnable getPostLayerTask() {
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81 | return postLayerTask;
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82 | }
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83 | }
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84 |
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85 | /**
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86 | * Constructs a new {@code GpxImporter}.
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87 | */
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88 | public GpxImporter() {
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89 | super(getFileFilter());
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90 | }
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91 |
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92 | /**
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93 | * Returns a GPX file filter (*.gpx and *.gpx.gz files).
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94 | * @return a GPX file filter
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95 | */
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96 | public static ExtensionFileFilter getFileFilter() {
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97 | return ExtensionFileFilter.newFilterWithArchiveExtensions(
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98 | "gpx", Main.pref.get("save.extension.gpx", "gpx"), tr("GPX Files"), true);
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99 | }
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100 |
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101 | @Override
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102 | public void importData(File file, ProgressMonitor progressMonitor) throws IOException {
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103 | final String fileName = file.getName();
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104 |
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105 | try (InputStream is = Compression.getUncompressedFileInputStream(file)) {
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106 | GpxReader r = new GpxReader(is);
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107 | boolean parsedProperly = r.parse(true);
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108 | r.getGpxData().storageFile = file;
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109 | addLayers(loadLayers(r.getGpxData(), parsedProperly, fileName, tr("Markers from {0}", fileName)));
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110 | } catch (SAXException e) {
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111 | Logging.error(e);
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112 | throw new IOException(tr("Parsing data for layer ''{0}'' failed", fileName), e);
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113 | }
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114 | }
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115 |
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116 | /**
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117 | * Adds the specified GPX and marker layers to Map.main
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118 | * @param data The layers to add
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119 | * @see #loadLayers
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120 | */
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121 | public static void addLayers(final GpxImporterData data) {
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122 | // FIXME: remove UI stuff from the IO subsystem
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123 | GuiHelper.runInEDT(() -> {
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124 | if (data.markerLayer != null) {
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125 | MainApplication.getLayerManager().addLayer(data.markerLayer);
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126 | }
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127 | if (data.gpxLayer != null) {
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128 | MainApplication.getLayerManager().addLayer(data.gpxLayer);
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129 | }
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130 | data.postLayerTask.run();
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131 | });
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132 | }
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133 |
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134 | /**
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135 | * Replies the new GPX and marker layers corresponding to the specified GPX data.
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136 | * @param data The GPX data
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137 | * @param parsedProperly True if GPX data has been properly parsed by {@link GpxReader#parse}
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138 | * @param gpxLayerName The GPX layer name
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139 | * @param markerLayerName The marker layer name
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140 | * @return the new GPX and marker layers corresponding to the specified GPX data, to be used with {@link #addLayers}
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141 | * @see #addLayers
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142 | */
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143 | public static GpxImporterData loadLayers(final GpxData data, final boolean parsedProperly,
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144 | final String gpxLayerName, String markerLayerName) {
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145 | GpxLayer gpxLayer = null;
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146 | MarkerLayer markerLayer = null;
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147 | if (data.hasRoutePoints() || data.hasTrackPoints()) {
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148 | gpxLayer = new GpxLayer(data, gpxLayerName, data.storageFile != null);
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149 | }
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150 | if (Main.pref.getBoolean("marker.makeautomarkers", true) && !data.waypoints.isEmpty()) {
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151 | markerLayer = new MarkerLayer(data, markerLayerName, data.storageFile, gpxLayer);
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152 | if (markerLayer.data.isEmpty()) {
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153 | markerLayer = null;
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154 | }
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155 | }
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156 | Runnable postLayerTask = () -> {
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157 | if (!parsedProperly) {
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158 | String msg;
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159 | if (data.storageFile == null) {
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160 | msg = tr("Error occurred while parsing gpx data for layer ''{0}''. Only a part of the file will be available.",
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161 | gpxLayerName);
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162 | } else {
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163 | msg = tr("Error occurred while parsing gpx file ''{0}''. Only a part of the file will be available.",
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164 | data.storageFile.getPath());
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165 | }
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166 | JOptionPane.showMessageDialog(null, msg);
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167 | }
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168 | };
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169 | return new GpxImporterData(gpxLayer, markerLayer, postLayerTask);
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170 | }
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171 |
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172 | /**
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173 | * Replies the new GPX and marker layers corresponding to the specified GPX file.
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174 | * @param is input stream to GPX data
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175 | * @param associatedFile GPX file
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176 | * @param gpxLayerName The GPX layer name
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177 | * @param markerLayerName The marker layer name
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178 | * @param progressMonitor The progress monitor
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179 | * @return the new GPX and marker layers corresponding to the specified GPX file
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180 | * @throws IOException if an I/O error occurs
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181 | */
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182 | public static GpxImporterData loadLayers(InputStream is, final File associatedFile,
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183 | final String gpxLayerName, String markerLayerName, ProgressMonitor progressMonitor) throws IOException {
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184 | try {
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185 | final GpxReader r = new GpxReader(is);
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186 | final boolean parsedProperly = r.parse(true);
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187 | r.getGpxData().storageFile = associatedFile;
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188 | return loadLayers(r.getGpxData(), parsedProperly, gpxLayerName, markerLayerName);
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189 | } catch (SAXException e) {
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190 | Logging.error(e);
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191 | throw new IOException(tr("Parsing data for layer ''{0}'' failed", gpxLayerName), e);
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192 | }
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193 | }
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194 | }
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