001// License: GPL. For details, see LICENSE file. 002package org.openstreetmap.josm.io; 003 004import static org.openstreetmap.josm.tools.I18n.tr; 005 006import java.io.File; 007import java.io.FileNotFoundException; 008import java.io.IOException; 009import java.io.InputStream; 010 011import javax.swing.JOptionPane; 012 013import org.openstreetmap.josm.Main; 014import org.openstreetmap.josm.actions.ExtensionFileFilter; 015import org.openstreetmap.josm.data.osm.DataSet; 016import org.openstreetmap.josm.data.osm.visitor.BoundingXYVisitor; 017import org.openstreetmap.josm.gui.layer.OsmDataLayer; 018import org.openstreetmap.josm.gui.progress.NullProgressMonitor; 019import org.openstreetmap.josm.gui.progress.ProgressMonitor; 020import org.openstreetmap.josm.gui.util.GuiHelper; 021 022public class OsmImporter extends FileImporter { 023 024 /** 025 * The OSM file filter (*.osm and *.xml files). 026 */ 027 public static final ExtensionFileFilter FILE_FILTER = new ExtensionFileFilter( 028 "osm,xml", "osm", tr("OSM Server Files") + " (*.osm *.xml)"); 029 030 /** 031 * Utility class containing imported OSM layer, and a task to run after it is added to MapView. 032 */ 033 public static class OsmImporterData { 034 035 private final OsmDataLayer layer; 036 private final Runnable postLayerTask; 037 038 public OsmImporterData(OsmDataLayer layer, Runnable postLayerTask) { 039 this.layer = layer; 040 this.postLayerTask = postLayerTask; 041 } 042 043 public OsmDataLayer getLayer() { 044 return layer; 045 } 046 047 public Runnable getPostLayerTask() { 048 return postLayerTask; 049 } 050 } 051 052 /** 053 * Constructs a new {@code OsmImporter}. 054 */ 055 public OsmImporter() { 056 super(FILE_FILTER); 057 } 058 059 /** 060 * Constructs a new {@code OsmImporter} with the given extension file filter. 061 * @param filter The extension file filter 062 */ 063 public OsmImporter(ExtensionFileFilter filter) { 064 super(filter); 065 } 066 067 /** 068 * Imports OSM data from file 069 * @param file file to read data from 070 * @param progressMonitor handler for progress monitoring and canceling 071 */ 072 @Override 073 public void importData(File file, ProgressMonitor progressMonitor) throws IOException, IllegalDataException { 074 try (InputStream in = Compression.getUncompressedFileInputStream(file)) { 075 importData(in, file, progressMonitor); 076 } catch (FileNotFoundException e) { 077 Main.error(e); 078 throw new IOException(tr("File ''{0}'' does not exist.", file.getName()), e); 079 } 080 } 081 082 /** 083 * Imports OSM data from stream 084 * @param in input stream 085 * @param associatedFile filename of data 086 */ 087 protected void importData(InputStream in, final File associatedFile) throws IllegalDataException { 088 importData(in, associatedFile, NullProgressMonitor.INSTANCE); 089 } 090 091 /** 092 * Imports OSM data from stream 093 * @param in input stream 094 * @param associatedFile filename of data (layer name will be generated from name of file) 095 * @param pm handler for progress monitoring and canceling 096 */ 097 protected void importData(InputStream in, final File associatedFile, ProgressMonitor pm) throws IllegalDataException { 098 final OsmImporterData data = loadLayer(in, associatedFile, 099 associatedFile == null ? OsmDataLayer.createNewName() : associatedFile.getName(), pm); 100 101 // FIXME: remove UI stuff from IO subsystem 102 GuiHelper.runInEDT(new Runnable() { 103 @Override 104 public void run() { 105 OsmDataLayer layer = data.getLayer(); 106 BoundingXYVisitor v = new BoundingXYVisitor(); 107 v.visit(layer.data.getDataSourceBoundingBox()); 108 if (!v.hasExtend()) { 109 v.computeBoundingBox(layer.data.getNodes()); 110 } 111 Main.main.addLayer(layer, v.getBounds()); 112 data.getPostLayerTask().run(); 113 data.getLayer().onPostLoadFromFile(); 114 } 115 }); 116 } 117 118 /** 119 * Load osm data layer from InputStream. 120 * @param in input stream 121 * @param associatedFile filename of data (can be <code>null</code> if the stream does not come from a file) 122 * @param layerName name of generated layer 123 * @param progressMonitor handler for progress monitoring and canceling 124 */ 125 public OsmImporterData loadLayer(InputStream in, final File associatedFile, final String layerName, ProgressMonitor progressMonitor) throws IllegalDataException { 126 final DataSet dataSet = parseDataSet(in, progressMonitor); 127 if (dataSet == null) { 128 throw new IllegalDataException(tr("Invalid dataset")); 129 } 130 OsmDataLayer layer = createLayer(dataSet, associatedFile, layerName); 131 Runnable postLayerTask = createPostLayerTask(dataSet, associatedFile, layerName, layer); 132 return new OsmImporterData(layer, postLayerTask); 133 } 134 135 protected DataSet parseDataSet(InputStream in, ProgressMonitor progressMonitor) throws IllegalDataException { 136 return OsmReader.parseDataSet(in, progressMonitor); 137 } 138 139 protected OsmDataLayer createLayer(final DataSet dataSet, final File associatedFile, final String layerName) { 140 return new OsmDataLayer(dataSet, layerName, associatedFile); 141 } 142 143 protected Runnable createPostLayerTask(final DataSet dataSet, final File associatedFile, final String layerName, final OsmDataLayer layer) { 144 return new Runnable() { 145 @Override 146 public void run() { 147 if (dataSet.allPrimitives().isEmpty()) { 148 String msg; 149 if (associatedFile == null) { 150 msg = tr("No data found for layer ''{0}''.", layerName); 151 } else { 152 msg = tr("No data found in file ''{0}''.", associatedFile.getPath()); 153 } 154 JOptionPane.showMessageDialog( 155 Main.parent, 156 msg, 157 tr("Open OSM file"), 158 JOptionPane.INFORMATION_MESSAGE); 159 } 160 layer.onPostLoadFromFile(); 161 } 162 }; 163 } 164}