source: josm/trunk/src/org/openstreetmap/josm/actions/downloadtasks/DownloadNotesTask.java

Last change on this file was 18868, checked in by taylor.smock, 2 years ago

See #16207: Keep track of download area for notes
  • Property svn:eol-style set to native
File size: 9.7 KB
Line 
1// License: GPL. For details, see LICENSE file.
2package org.openstreetmap.josm.actions.downloadtasks;
3
4import static org.openstreetmap.josm.tools.I18n.tr;
5import static org.openstreetmap.josm.tools.I18n.trn;
6
7import java.io.IOException;
8import java.net.URL;
9import java.util.List;
10import java.util.concurrent.Future;
11
12import javax.swing.JOptionPane;
13
14import org.openstreetmap.josm.data.Bounds;
15import org.openstreetmap.josm.data.DataSource;
16import org.openstreetmap.josm.data.ProjectionBounds;
17import org.openstreetmap.josm.data.ViewportData;
18import org.openstreetmap.josm.data.notes.Note;
19import org.openstreetmap.josm.data.osm.NoteData;
20import org.openstreetmap.josm.data.preferences.IntegerProperty;
21import org.openstreetmap.josm.gui.MainApplication;
22import org.openstreetmap.josm.gui.MapFrame;
23import org.openstreetmap.josm.gui.PleaseWaitRunnable;
24import org.openstreetmap.josm.gui.layer.NoteLayer;
25import org.openstreetmap.josm.gui.progress.ProgressMonitor;
26import org.openstreetmap.josm.io.BoundingBoxDownloader;
27import org.openstreetmap.josm.io.BoundingBoxDownloader.MoreNotesException;
28import org.openstreetmap.josm.io.Compression;
29import org.openstreetmap.josm.io.OsmApi;
30import org.openstreetmap.josm.io.OsmServerLocationReader;
31import org.openstreetmap.josm.io.OsmServerReader;
32import org.openstreetmap.josm.io.OsmTransferException;
33import org.openstreetmap.josm.io.UrlPatterns.NoteUrlPattern;
34import org.openstreetmap.josm.tools.Logging;
35import org.xml.sax.SAXException;
36
37/**
38 * General task for downloading OSM notes.
39 * <p>
40 * It handles two URL patterns: API call and dump file export.
41 * @since 7531
42 */
43public class DownloadNotesTask extends AbstractDownloadTask<NoteData> {
44
45 /** Property defining the number of notes to be downloaded */
46 public static final IntegerProperty DOWNLOAD_LIMIT = new IntegerProperty("osm.notes.downloadLimit", 1000);
47 /** Property defining number of days a bug needs to be closed to no longer be downloaded */
48 public static final IntegerProperty DAYS_CLOSED = new IntegerProperty("osm.notes.daysClosed", 7);
49
50 private static final String PATTERN_COMPRESS = "https?://.*/(.*\\.osn.(gz|xz|bz2?|zip))";
51 private static final String NO_NOTES_FOUND = tr("No notes found in this area.");
52 static {
53 PostDownloadHandler.addNoDataErrorMessage(NO_NOTES_FOUND);
54 }
55
56 private DownloadTask downloadTask;
57 private NoteLayer noteLayer;
58
59 /** This allows subclasses to ignore this warning */
60 protected boolean warnAboutEmptyArea = true;
61
62 /**
63 * Download a specific note by its id.
64 * @param id Note identifier
65 * @param progressMonitor progress monitor
66 * @return the future representing the asynchronous task
67 */
68 public Future<?> download(long id, ProgressMonitor progressMonitor) {
69 final String url = OsmApi.getOsmApi().getBaseUrl() + "notes/" + id;
70 downloadTask = new DownloadRawUrlTask(new OsmServerLocationReader(url), progressMonitor);
71 return MainApplication.worker.submit(downloadTask);
72 }
73
74 @Override
75 public Future<?> download(DownloadParams settings, Bounds downloadArea, ProgressMonitor progressMonitor) {
76 downloadTask = new DownloadBoundingBoxTask(downloadArea, progressMonitor);
77 return MainApplication.worker.submit(downloadTask);
78 }
79
80 @Override
81 public Future<?> loadUrl(DownloadParams settings, String url, ProgressMonitor progressMonitor) {
82 if (url.matches(PATTERN_COMPRESS)) {
83 downloadTask = new DownloadCompressedRawUrlTask(new OsmServerLocationReader(url), progressMonitor, Compression.byExtension(url));
84 } else {
85 downloadTask = new DownloadRawUrlTask(new OsmServerLocationReader(url), progressMonitor);
86 }
87 return MainApplication.worker.submit(downloadTask);
88 }
89
90 @Override
91 public void cancel() {
92 if (downloadTask != null) {
93 downloadTask.cancel();
94 }
95 }
96
97 @Override
98 public String getConfirmationMessage(URL url) {
99 return null;
100 }
101
102 @Override
103 public String getTitle() {
104 return tr("Download OSM Notes");
105 }
106
107 @Override
108 public String[] getPatterns() {
109 return patterns(NoteUrlPattern.class);
110 }
111
112 @Override
113 public boolean isSafeForRemotecontrolRequests() {
114 return true;
115 }
116
117 @Override
118 public ProjectionBounds getDownloadProjectionBounds() {
119 return noteLayer != null ? noteLayer.getViewProjectionBounds() : null;
120 }
121
122 abstract class DownloadTask extends PleaseWaitRunnable {
123 protected OsmServerReader reader;
124 protected List<Note> notesData;
125
126 DownloadTask(OsmServerReader reader, ProgressMonitor progressMonitor) {
127 super(tr("Downloading notes"), progressMonitor, false);
128 this.reader = reader;
129 }
130
131 @Override
132 protected void finish() {
133 rememberDownloadedData(new NoteData(notesData));
134 if (isCanceled() || isFailed() || notesData == null) {
135 return;
136 }
137 if (notesData.isEmpty()) {
138 if (warnAboutEmptyArea) {
139 rememberErrorMessage(NO_NOTES_FOUND);
140 }
141 return;
142 }
143 if (Logging.isDebugEnabled()) {
144 Logging.debug("Notes downloaded: {0}", notesData.size());
145 }
146
147 noteLayer = new NoteLayer(notesData, tr("Notes"));
148 if (this instanceof DownloadBoundingBoxTask && ((DownloadBoundingBoxTask) this).bounds != null) {
149 noteLayer.getNoteData().addDataSource(new DataSource(((DownloadBoundingBoxTask) this).bounds, "OpenStreetMap server"));
150 }
151 NoteLayer l = MainApplication.getLayerManager().getNoteLayer();
152 if (l != null) {
153 l.mergeFrom(noteLayer);
154 MapFrame map = MainApplication.getMap();
155 if (map != null && zoomAfterDownload) {
156 map.mapView.scheduleZoomTo(new ViewportData(noteLayer.getViewProjectionBounds()));
157 }
158 } else {
159 MainApplication.getLayerManager().addLayer(noteLayer, zoomAfterDownload);
160 }
161 }
162
163 @Override
164 protected void cancel() {
165 setCanceled(true);
166 if (reader != null) {
167 reader.cancel();
168 }
169 }
170
171 @Override
172 public abstract void realRun() throws IOException, SAXException, OsmTransferException;
173 }
174
175 class DownloadBoundingBoxTask extends DownloadTask {
176 private Bounds bounds;
177
178 DownloadBoundingBoxTask(Bounds bounds, ProgressMonitor progressMonitor) {
179 this(new BoundingBoxDownloader(bounds), progressMonitor);
180 this.bounds = bounds;
181 }
182
183 DownloadBoundingBoxTask(OsmServerReader reader, ProgressMonitor progressMonitor) {
184 super(reader, progressMonitor);
185 }
186
187 @Override
188 public void realRun() throws IOException, SAXException, OsmTransferException {
189 if (isCanceled()) {
190 return;
191 }
192 ProgressMonitor subMonitor = progressMonitor.createSubTaskMonitor(ProgressMonitor.ALL_TICKS, false);
193 try {
194 notesData = reader.parseNotes(DOWNLOAD_LIMIT.get(), DAYS_CLOSED.get(), subMonitor);
195 } catch (MoreNotesException e) {
196 Logging.debug(e);
197 notesData = e.notes;
198 JOptionPane.showMessageDialog(MainApplication.getMainFrame(), "<html>"
199 + trn("{0} note has been downloaded.", "{0} notes have been downloaded.", e.limit, e.limit)
200 + "<br>"
201 + tr("Since the download limit was {0}, there might be more notes to download.", e.limit)
202 + "<br>"
203 + tr("Request a smaller area to make sure that all notes are being downloaded.")
204 + "</html>",
205 tr("More notes to download"), JOptionPane.INFORMATION_MESSAGE);
206 } catch (OsmTransferException e) {
207 if (isCanceled())
208 return;
209 rememberException(e);
210 }
211 }
212 }
213
214 class DownloadRawUrlTask extends DownloadTask {
215
216 DownloadRawUrlTask(OsmServerReader reader, ProgressMonitor progressMonitor) {
217 super(reader, progressMonitor);
218 }
219
220 @Override
221 public void realRun() throws IOException, SAXException, OsmTransferException {
222 if (isCanceled()) {
223 return;
224 }
225 ProgressMonitor subMonitor = progressMonitor.createSubTaskMonitor(ProgressMonitor.ALL_TICKS, false);
226 try {
227 notesData = reader.parseRawNotes(subMonitor);
228 } catch (OsmTransferException e) {
229 if (isCanceled())
230 return;
231 rememberException(e);
232 }
233 }
234 }
235
236 class DownloadCompressedRawUrlTask extends DownloadTask {
237
238 private final Compression compression;
239
240 DownloadCompressedRawUrlTask(OsmServerReader reader, ProgressMonitor progressMonitor, Compression compression) {
241 super(reader, progressMonitor);
242 this.compression = compression;
243 }
244
245 @Override
246 public void realRun() throws IOException, SAXException, OsmTransferException {
247 if (isCanceled()) {
248 return;
249 }
250 ProgressMonitor subMonitor = progressMonitor.createSubTaskMonitor(ProgressMonitor.ALL_TICKS, false);
251 try {
252 notesData = reader.parseRawNotes(subMonitor, compression);
253 } catch (OsmTransferException e) {
254 if (isCanceled())
255 return;
256 rememberException(e);
257 }
258 }
259 }
260}
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