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; 010import java.util.Arrays; 011 012import javax.swing.JOptionPane; 013 014import org.openstreetmap.josm.Main; 015import org.openstreetmap.josm.actions.ExtensionFileFilter; 016import org.openstreetmap.josm.data.osm.DataSet; 017import org.openstreetmap.josm.data.osm.visitor.BoundingXYVisitor; 018import org.openstreetmap.josm.gui.layer.OsmDataLayer; 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 = ExtensionFileFilter.newFilterWithArchiveExtensions( 028 "osm,xml", "osm", tr("OSM Server Files") + " (*.osm, *.osm.gz, *.osm.bz2, *.osm.zip, *.xml)", 029 ExtensionFileFilter.AddArchiveExtension.NONE, Arrays.asList("gz", "bz", "bz2", "zip")); 030 031 /** 032 * Utility class containing imported OSM layer, and a task to run after it is added to MapView. 033 */ 034 public static class OsmImporterData { 035 036 private final OsmDataLayer layer; 037 private final Runnable postLayerTask; 038 039 public OsmImporterData(OsmDataLayer layer, Runnable postLayerTask) { 040 this.layer = layer; 041 this.postLayerTask = postLayerTask; 042 } 043 044 public OsmDataLayer getLayer() { 045 return layer; 046 } 047 048 public Runnable getPostLayerTask() { 049 return postLayerTask; 050 } 051 } 052 053 /** 054 * Constructs a new {@code OsmImporter}. 055 */ 056 public OsmImporter() { 057 super(FILE_FILTER); 058 } 059 060 /** 061 * Constructs a new {@code OsmImporter} with the given extension file filter. 062 * @param filter The extension file filter 063 */ 064 public OsmImporter(ExtensionFileFilter filter) { 065 super(filter); 066 } 067 068 /** 069 * Imports OSM data from file 070 * @param file file to read data from 071 * @param progressMonitor handler for progress monitoring and canceling 072 */ 073 @Override 074 public void importData(File file, ProgressMonitor progressMonitor) throws IOException, IllegalDataException { 075 try (InputStream in = Compression.getUncompressedFileInputStream(file)) { 076 importData(in, file, progressMonitor); 077 } catch (FileNotFoundException e) { 078 Main.error(e); 079 throw new IOException(tr("File ''{0}'' does not exist.", file.getName()), e); 080 } 081 } 082 083 /** 084 * Imports OSM data from stream 085 * @param in input stream 086 * @param associatedFile filename of data (layer name will be generated from name of file) 087 * @param pm handler for progress monitoring and canceling 088 * @throws IllegalDataException if an error was found while parsing the OSM data 089 */ 090 protected void importData(InputStream in, final File associatedFile, ProgressMonitor pm) throws IllegalDataException { 091 final OsmImporterData data = loadLayer(in, associatedFile, 092 associatedFile == null ? OsmDataLayer.createNewName() : associatedFile.getName(), pm); 093 094 // FIXME: remove UI stuff from IO subsystem 095 GuiHelper.runInEDT(new Runnable() { 096 @Override 097 public void run() { 098 OsmDataLayer layer = data.getLayer(); 099 BoundingXYVisitor v = new BoundingXYVisitor(); 100 v.visit(layer.data.getDataSourceBoundingBox()); 101 if (!v.hasExtend()) { 102 v.computeBoundingBox(layer.data.getNodes()); 103 } 104 Main.main.addLayer(layer, v.getBounds()); 105 data.getPostLayerTask().run(); 106 data.getLayer().onPostLoadFromFile(); 107 } 108 }); 109 } 110 111 /** 112 * Load osm data layer from InputStream. 113 * @param in input stream 114 * @param associatedFile filename of data (can be <code>null</code> if the stream does not come from a file) 115 * @param layerName name of generated layer 116 * @param progressMonitor handler for progress monitoring and canceling 117 * @return Utility class containing imported OSM layer, and a task to run after it is added to MapView 118 * @throws IllegalDataException if an error was found while parsing the OSM data 119 */ 120 public OsmImporterData loadLayer(InputStream in, final File associatedFile, final String layerName, ProgressMonitor progressMonitor) 121 throws IllegalDataException { 122 final DataSet dataSet = parseDataSet(in, progressMonitor); 123 if (dataSet == null) { 124 throw new IllegalDataException(tr("Invalid dataset")); 125 } 126 OsmDataLayer layer = createLayer(dataSet, associatedFile, layerName); 127 Runnable postLayerTask = createPostLayerTask(dataSet, associatedFile, layerName, layer); 128 return new OsmImporterData(layer, postLayerTask); 129 } 130 131 protected DataSet parseDataSet(InputStream in, ProgressMonitor progressMonitor) throws IllegalDataException { 132 return OsmReader.parseDataSet(in, progressMonitor); 133 } 134 135 protected OsmDataLayer createLayer(final DataSet dataSet, final File associatedFile, final String layerName) { 136 return new OsmDataLayer(dataSet, layerName, associatedFile); 137 } 138 139 protected Runnable createPostLayerTask(final DataSet dataSet, final File associatedFile, final String layerName, final OsmDataLayer layer) { 140 return new Runnable() { 141 @Override 142 public void run() { 143 if (dataSet.allPrimitives().isEmpty()) { 144 String msg; 145 if (associatedFile == null) { 146 msg = tr("No data found for layer ''{0}''.", layerName); 147 } else { 148 msg = tr("No data found in file ''{0}''.", associatedFile.getPath()); 149 } 150 JOptionPane.showMessageDialog( 151 Main.parent, 152 msg, 153 tr("Open OSM file"), 154 JOptionPane.INFORMATION_MESSAGE); 155 } 156 layer.onPostLoadFromFile(); 157 } 158 }; 159 } 160}