1 | // License: GPL. For details, see LICENSE file.
|
---|
2 | package org.openstreetmap.josm.io;
|
---|
3 |
|
---|
4 | import static org.openstreetmap.josm.tools.I18n.tr;
|
---|
5 |
|
---|
6 | import java.io.IOException;
|
---|
7 | import java.io.InputStream;
|
---|
8 | import java.util.List;
|
---|
9 |
|
---|
10 | import org.openstreetmap.josm.data.Bounds;
|
---|
11 | import org.openstreetmap.josm.data.DataSource;
|
---|
12 | import org.openstreetmap.josm.data.gpx.GpxData;
|
---|
13 | import org.openstreetmap.josm.data.notes.Note;
|
---|
14 | import org.openstreetmap.josm.data.osm.DataSet;
|
---|
15 | import org.openstreetmap.josm.gui.progress.ProgressMonitor;
|
---|
16 | import org.openstreetmap.josm.tools.CheckParameterUtil;
|
---|
17 | import org.xml.sax.SAXException;
|
---|
18 |
|
---|
19 | /**
|
---|
20 | * Read content from OSM server for a given bounding box
|
---|
21 | * @since 627
|
---|
22 | */
|
---|
23 | public class BoundingBoxDownloader extends OsmServerReader {
|
---|
24 |
|
---|
25 | /**
|
---|
26 | * The boundings of the desired map data.
|
---|
27 | */
|
---|
28 | protected final double lat1;
|
---|
29 | protected final double lon1;
|
---|
30 | protected final double lat2;
|
---|
31 | protected final double lon2;
|
---|
32 | protected final boolean crosses180th;
|
---|
33 |
|
---|
34 | /**
|
---|
35 | * Constructs a new {@code BoundingBoxDownloader}.
|
---|
36 | * @param downloadArea The area to download
|
---|
37 | */
|
---|
38 | public BoundingBoxDownloader(Bounds downloadArea) {
|
---|
39 | CheckParameterUtil.ensureParameterNotNull(downloadArea, "downloadArea");
|
---|
40 | this.lat1 = downloadArea.getMinLat();
|
---|
41 | this.lon1 = downloadArea.getMinLon();
|
---|
42 | this.lat2 = downloadArea.getMaxLat();
|
---|
43 | this.lon2 = downloadArea.getMaxLon();
|
---|
44 | this.crosses180th = downloadArea.crosses180thMeridian();
|
---|
45 | }
|
---|
46 |
|
---|
47 | private GpxData downloadRawGps(Bounds b, ProgressMonitor progressMonitor) throws IOException, OsmTransferException, SAXException {
|
---|
48 | boolean done = false;
|
---|
49 | GpxData result = null;
|
---|
50 | String url = "trackpoints?bbox="+b.getMinLon()+","+b.getMinLat()+","+b.getMaxLon()+","+b.getMaxLat()+"&page=";
|
---|
51 | for (int i = 0;!done;++i) {
|
---|
52 | progressMonitor.subTask(tr("Downloading points {0} to {1}...", i * 5000, (i + 1) * 5000));
|
---|
53 | try (InputStream in = getInputStream(url+i, progressMonitor.createSubTaskMonitor(1, true))) {
|
---|
54 | if (in == null) {
|
---|
55 | break;
|
---|
56 | }
|
---|
57 | progressMonitor.setTicks(0);
|
---|
58 | GpxReader reader = new GpxReader(in);
|
---|
59 | gpxParsedProperly = reader.parse(false);
|
---|
60 | GpxData currentGpx = reader.getGpxData();
|
---|
61 | if (result == null) {
|
---|
62 | result = currentGpx;
|
---|
63 | } else if (currentGpx.hasTrackPoints()) {
|
---|
64 | result.mergeFrom(currentGpx);
|
---|
65 | } else{
|
---|
66 | done = true;
|
---|
67 | }
|
---|
68 | }
|
---|
69 | activeConnection = null;
|
---|
70 | }
|
---|
71 | if (result != null) {
|
---|
72 | result.fromServer = true;
|
---|
73 | result.dataSources.add(new DataSource(b, "OpenStreetMap server"));
|
---|
74 | }
|
---|
75 | return result;
|
---|
76 | }
|
---|
77 |
|
---|
78 | @Override
|
---|
79 | public GpxData parseRawGps(ProgressMonitor progressMonitor) throws OsmTransferException {
|
---|
80 | progressMonitor.beginTask("", 1);
|
---|
81 | try {
|
---|
82 | progressMonitor.indeterminateSubTask(tr("Contacting OSM Server..."));
|
---|
83 | if (crosses180th) {
|
---|
84 | // API 0.6 does not support requests crossing the 180th meridian, so make two requests
|
---|
85 | GpxData result = downloadRawGps(new Bounds(lat1, lon1, lat2, 180.0), progressMonitor);
|
---|
86 | result.mergeFrom(downloadRawGps(new Bounds(lat1, -180.0, lat2, lon2), progressMonitor));
|
---|
87 | return result;
|
---|
88 | } else {
|
---|
89 | // Simple request
|
---|
90 | return downloadRawGps(new Bounds(lat1, lon1, lat2, lon2), progressMonitor);
|
---|
91 | }
|
---|
92 | } catch (IllegalArgumentException e) {
|
---|
93 | // caused by HttpUrlConnection in case of illegal stuff in the response
|
---|
94 | if (cancel)
|
---|
95 | return null;
|
---|
96 | throw new OsmTransferException("Illegal characters within the HTTP-header response.", e);
|
---|
97 | } catch (IOException e) {
|
---|
98 | if (cancel)
|
---|
99 | return null;
|
---|
100 | throw new OsmTransferException(e);
|
---|
101 | } catch (SAXException e) {
|
---|
102 | throw new OsmTransferException(e);
|
---|
103 | } catch (OsmTransferException e) {
|
---|
104 | throw e;
|
---|
105 | } catch (RuntimeException e) {
|
---|
106 | if (cancel)
|
---|
107 | return null;
|
---|
108 | throw e;
|
---|
109 | } finally {
|
---|
110 | progressMonitor.finishTask();
|
---|
111 | }
|
---|
112 | }
|
---|
113 |
|
---|
114 | protected String getRequestForBbox(double lon1, double lat1, double lon2, double lat2) {
|
---|
115 | return "map?bbox=" + lon1 + "," + lat1 + "," + lon2 + "," + lat2;
|
---|
116 | }
|
---|
117 |
|
---|
118 | @Override
|
---|
119 | public DataSet parseOsm(ProgressMonitor progressMonitor) throws OsmTransferException {
|
---|
120 | progressMonitor.beginTask(tr("Contacting OSM Server..."), 10);
|
---|
121 | try {
|
---|
122 | DataSet ds = null;
|
---|
123 | progressMonitor.indeterminateSubTask(null);
|
---|
124 | if (crosses180th) {
|
---|
125 | // API 0.6 does not support requests crossing the 180th meridian, so make two requests
|
---|
126 | DataSet ds2 = null;
|
---|
127 |
|
---|
128 | try (InputStream in = getInputStream(getRequestForBbox(lon1, lat1, 180.0, lat2), progressMonitor.createSubTaskMonitor(9, false))) {
|
---|
129 | if (in == null)
|
---|
130 | return null;
|
---|
131 | ds = OsmReader.parseDataSet(in, progressMonitor.createSubTaskMonitor(1, false));
|
---|
132 | }
|
---|
133 |
|
---|
134 | try (InputStream in = getInputStream(getRequestForBbox(-180.0, lat1, lon2, lat2), progressMonitor.createSubTaskMonitor(9, false))) {
|
---|
135 | if (in == null)
|
---|
136 | return null;
|
---|
137 | ds2 = OsmReader.parseDataSet(in, progressMonitor.createSubTaskMonitor(1, false));
|
---|
138 | }
|
---|
139 | if (ds2 == null)
|
---|
140 | return null;
|
---|
141 | ds.mergeFrom(ds2);
|
---|
142 |
|
---|
143 | } else {
|
---|
144 | // Simple request
|
---|
145 | try (InputStream in = getInputStream(getRequestForBbox(lon1, lat1, lon2, lat2), progressMonitor.createSubTaskMonitor(9, false))) {
|
---|
146 | if (in == null)
|
---|
147 | return null;
|
---|
148 | ds = OsmReader.parseDataSet(in, progressMonitor.createSubTaskMonitor(1, false));
|
---|
149 | }
|
---|
150 | }
|
---|
151 | return ds;
|
---|
152 | } catch(OsmTransferException e) {
|
---|
153 | throw e;
|
---|
154 | } catch (Exception e) {
|
---|
155 | throw new OsmTransferException(e);
|
---|
156 | } finally {
|
---|
157 | progressMonitor.finishTask();
|
---|
158 | activeConnection = null;
|
---|
159 | }
|
---|
160 | }
|
---|
161 |
|
---|
162 | @Override
|
---|
163 | public List<Note> parseNotes(int noteLimit, int daysClosed, ProgressMonitor progressMonitor) throws OsmTransferException, MoreNotesException {
|
---|
164 | progressMonitor.beginTask("Downloading notes");
|
---|
165 | CheckParameterUtil.ensureThat(noteLimit > 0, "Requested note limit is less than 1.");
|
---|
166 | // see result_limit in https://github.com/openstreetmap/openstreetmap-website/blob/master/app/controllers/notes_controller.rb
|
---|
167 | CheckParameterUtil.ensureThat(noteLimit <= 10000, "Requested note limit is over API hard limit of 10000.");
|
---|
168 | CheckParameterUtil.ensureThat(daysClosed >= -1, "Requested note limit is less than -1.");
|
---|
169 | String url = "notes?limit=" + noteLimit + "&closed=" + daysClosed + "&bbox=" + lon1 + "," + lat1 + "," + lon2 + "," + lat2;
|
---|
170 | try {
|
---|
171 | InputStream is = getInputStream(url, progressMonitor.createSubTaskMonitor(1, false));
|
---|
172 | NoteReader reader = new NoteReader(is);
|
---|
173 | final List<Note> notes = reader.parse();
|
---|
174 | if (notes.size() == noteLimit) {
|
---|
175 | throw new MoreNotesException(notes, noteLimit);
|
---|
176 | }
|
---|
177 | return notes;
|
---|
178 | } catch (IOException e) {
|
---|
179 | throw new OsmTransferException(e);
|
---|
180 | } catch (SAXException e) {
|
---|
181 | throw new OsmTransferException(e);
|
---|
182 | } finally {
|
---|
183 | progressMonitor.finishTask();
|
---|
184 | }
|
---|
185 | }
|
---|
186 |
|
---|
187 | /**
|
---|
188 | * Indicates that the number of fetched notes equals the specified limit. Thus there might be more notes to download.
|
---|
189 | */
|
---|
190 | public static class MoreNotesException extends RuntimeException{
|
---|
191 | /**
|
---|
192 | * The downloaded notes
|
---|
193 | */
|
---|
194 | public final transient List<Note> notes;
|
---|
195 | /**
|
---|
196 | * The download limit sent to the server.
|
---|
197 | */
|
---|
198 | public final int limit;
|
---|
199 |
|
---|
200 | public MoreNotesException(List<Note> notes, int limit) {
|
---|
201 | this.notes = notes;
|
---|
202 | this.limit = limit;
|
---|
203 | }
|
---|
204 | }
|
---|
205 |
|
---|
206 | }
|
---|