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.net.Authenticator.RequestorType;
|
---|
9 | import java.net.HttpURLConnection;
|
---|
10 | import java.net.MalformedURLException;
|
---|
11 | import java.net.URL;
|
---|
12 | import java.util.List;
|
---|
13 |
|
---|
14 | import javax.xml.parsers.ParserConfigurationException;
|
---|
15 |
|
---|
16 | import org.openstreetmap.josm.Main;
|
---|
17 | import org.openstreetmap.josm.data.gpx.GpxData;
|
---|
18 | import org.openstreetmap.josm.data.notes.Note;
|
---|
19 | import org.openstreetmap.josm.data.osm.DataSet;
|
---|
20 | import org.openstreetmap.josm.gui.progress.ProgressMonitor;
|
---|
21 | import org.openstreetmap.josm.io.auth.CredentialsAgentException;
|
---|
22 | import org.openstreetmap.josm.io.auth.CredentialsManager;
|
---|
23 | import org.openstreetmap.josm.tools.HttpClient;
|
---|
24 | import org.openstreetmap.josm.tools.Logging;
|
---|
25 | import org.openstreetmap.josm.tools.Utils;
|
---|
26 | import org.openstreetmap.josm.tools.XmlParsingException;
|
---|
27 | import org.w3c.dom.Document;
|
---|
28 | import org.w3c.dom.Node;
|
---|
29 | import org.xml.sax.SAXException;
|
---|
30 |
|
---|
31 | /**
|
---|
32 | * This DataReader reads directly from the REST API of the osm server.
|
---|
33 | *
|
---|
34 | * It supports plain text transfer as well as gzip or deflate encoded transfers;
|
---|
35 | * if compressed transfers are unwanted, set property osm-server.use-compression
|
---|
36 | * to false.
|
---|
37 | *
|
---|
38 | * @author imi
|
---|
39 | */
|
---|
40 | public abstract class OsmServerReader extends OsmConnection {
|
---|
41 | private final OsmApi api = OsmApi.getOsmApi();
|
---|
42 | private boolean doAuthenticate;
|
---|
43 | protected boolean gpxParsedProperly;
|
---|
44 |
|
---|
45 | /**
|
---|
46 | * Constructs a new {@code OsmServerReader}.
|
---|
47 | */
|
---|
48 | public OsmServerReader() {
|
---|
49 | try {
|
---|
50 | doAuthenticate = OsmApi.isUsingOAuth() && CredentialsManager.getInstance().lookupOAuthAccessToken() != null;
|
---|
51 | } catch (CredentialsAgentException e) {
|
---|
52 | Logging.warn(e);
|
---|
53 | }
|
---|
54 | }
|
---|
55 |
|
---|
56 | /**
|
---|
57 | * Open a connection to the given url and return a reader on the input stream
|
---|
58 | * from that connection. In case of user cancel, return <code>null</code>.
|
---|
59 | * Relative URL's are directed to API base URL.
|
---|
60 | * @param urlStr The url to connect to.
|
---|
61 | * @param progressMonitor progress monitoring and abort handler
|
---|
62 | * @return A reader reading the input stream (servers answer) or <code>null</code>.
|
---|
63 | * @throws OsmTransferException if data transfer errors occur
|
---|
64 | */
|
---|
65 | protected InputStream getInputStream(String urlStr, ProgressMonitor progressMonitor) throws OsmTransferException {
|
---|
66 | return getInputStream(urlStr, progressMonitor, null);
|
---|
67 | }
|
---|
68 |
|
---|
69 | /**
|
---|
70 | * Open a connection to the given url and return a reader on the input stream
|
---|
71 | * from that connection. In case of user cancel, return <code>null</code>.
|
---|
72 | * Relative URL's are directed to API base URL.
|
---|
73 | * @param urlStr The url to connect to.
|
---|
74 | * @param progressMonitor progress monitoring and abort handler
|
---|
75 | * @param reason The reason to show on console. Can be {@code null} if no reason is given
|
---|
76 | * @return A reader reading the input stream (servers answer) or <code>null</code>.
|
---|
77 | * @throws OsmTransferException if data transfer errors occur
|
---|
78 | */
|
---|
79 | protected InputStream getInputStream(String urlStr, ProgressMonitor progressMonitor, String reason) throws OsmTransferException {
|
---|
80 | try {
|
---|
81 | api.initialize(progressMonitor);
|
---|
82 | String url = urlStr.startsWith("http") ? urlStr : (getBaseUrl() + urlStr);
|
---|
83 | return getInputStreamRaw(url, progressMonitor, reason);
|
---|
84 | } finally {
|
---|
85 | progressMonitor.invalidate();
|
---|
86 | }
|
---|
87 | }
|
---|
88 |
|
---|
89 | /**
|
---|
90 | * Return the base URL for relative URL requests
|
---|
91 | * @return base url of API
|
---|
92 | */
|
---|
93 | protected String getBaseUrl() {
|
---|
94 | return api.getBaseUrl();
|
---|
95 | }
|
---|
96 |
|
---|
97 | /**
|
---|
98 | * Open a connection to the given url and return a reader on the input stream
|
---|
99 | * from that connection. In case of user cancel, return <code>null</code>.
|
---|
100 | * @param urlStr The exact url to connect to.
|
---|
101 | * @param progressMonitor progress monitoring and abort handler
|
---|
102 | * @return An reader reading the input stream (servers answer) or <code>null</code>.
|
---|
103 | * @throws OsmTransferException if data transfer errors occur
|
---|
104 | */
|
---|
105 | protected InputStream getInputStreamRaw(String urlStr, ProgressMonitor progressMonitor) throws OsmTransferException {
|
---|
106 | return getInputStreamRaw(urlStr, progressMonitor, null);
|
---|
107 | }
|
---|
108 |
|
---|
109 | /**
|
---|
110 | * Open a connection to the given url and return a reader on the input stream
|
---|
111 | * from that connection. In case of user cancel, return <code>null</code>.
|
---|
112 | * @param urlStr The exact url to connect to.
|
---|
113 | * @param progressMonitor progress monitoring and abort handler
|
---|
114 | * @param reason The reason to show on console. Can be {@code null} if no reason is given
|
---|
115 | * @return An reader reading the input stream (servers answer) or <code>null</code>.
|
---|
116 | * @throws OsmTransferException if data transfer errors occur
|
---|
117 | */
|
---|
118 | protected InputStream getInputStreamRaw(String urlStr, ProgressMonitor progressMonitor, String reason) throws OsmTransferException {
|
---|
119 | return getInputStreamRaw(urlStr, progressMonitor, reason, false);
|
---|
120 | }
|
---|
121 |
|
---|
122 | /**
|
---|
123 | * Open a connection to the given url (if HTTP, trough a GET request) and return a reader on the input stream
|
---|
124 | * from that connection. In case of user cancel, return <code>null</code>.
|
---|
125 | * @param urlStr The exact url to connect to.
|
---|
126 | * @param progressMonitor progress monitoring and abort handler
|
---|
127 | * @param reason The reason to show on console. Can be {@code null} if no reason is given
|
---|
128 | * @param uncompressAccordingToContentDisposition Whether to inspect the HTTP header {@code Content-Disposition}
|
---|
129 | * for {@code filename} and uncompress a gzip/bzip2/xz/zip stream.
|
---|
130 | * @return An reader reading the input stream (servers answer) or <code>null</code>.
|
---|
131 | * @throws OsmTransferException if data transfer errors occur
|
---|
132 | */
|
---|
133 | protected InputStream getInputStreamRaw(String urlStr, ProgressMonitor progressMonitor, String reason,
|
---|
134 | boolean uncompressAccordingToContentDisposition) throws OsmTransferException {
|
---|
135 | return getInputStreamRaw(urlStr, progressMonitor, reason, uncompressAccordingToContentDisposition, "GET", null);
|
---|
136 | }
|
---|
137 |
|
---|
138 | /**
|
---|
139 | * Open a connection to the given url (if HTTP, with the specified method) and return a reader on the input stream
|
---|
140 | * from that connection. In case of user cancel, return <code>null</code>.
|
---|
141 | * @param urlStr The exact url to connect to.
|
---|
142 | * @param progressMonitor progress monitoring and abort handler
|
---|
143 | * @param reason The reason to show on console. Can be {@code null} if no reason is given
|
---|
144 | * @param uncompressAccordingToContentDisposition Whether to inspect the HTTP header {@code Content-Disposition}
|
---|
145 | * for {@code filename} and uncompress a gzip/bzip2/xz/zip stream.
|
---|
146 | * @param httpMethod HTTP method ("GET", "POST" or "PUT")
|
---|
147 | * @param requestBody HTTP request body (for "POST" and "PUT" methods only). Must be null for "GET" method.
|
---|
148 | * @return An reader reading the input stream (servers answer) or <code>null</code>.
|
---|
149 | * @throws OsmTransferException if data transfer errors occur
|
---|
150 | * @since 12596
|
---|
151 | */
|
---|
152 | @SuppressWarnings("resource")
|
---|
153 | protected InputStream getInputStreamRaw(String urlStr, ProgressMonitor progressMonitor, String reason,
|
---|
154 | boolean uncompressAccordingToContentDisposition, String httpMethod, byte[] requestBody) throws OsmTransferException {
|
---|
155 | try {
|
---|
156 | OnlineResource.JOSM_WEBSITE.checkOfflineAccess(urlStr, Main.getJOSMWebsite());
|
---|
157 | OnlineResource.OSM_API.checkOfflineAccess(urlStr, OsmApi.getOsmApi().getServerUrl());
|
---|
158 |
|
---|
159 | URL url = null;
|
---|
160 | try {
|
---|
161 | url = new URL(urlStr.replace(" ", "%20"));
|
---|
162 | } catch (MalformedURLException e) {
|
---|
163 | throw new OsmTransferException(e);
|
---|
164 | }
|
---|
165 |
|
---|
166 | String protocol = url.getProtocol();
|
---|
167 | if ("file".equals(protocol) || "jar".equals(protocol)) {
|
---|
168 | try {
|
---|
169 | return Utils.openStream(url);
|
---|
170 | } catch (IOException e) {
|
---|
171 | throw new OsmTransferException(e);
|
---|
172 | }
|
---|
173 | }
|
---|
174 |
|
---|
175 | final HttpClient client = HttpClient.create(url, httpMethod)
|
---|
176 | .setFinishOnCloseOutput(false)
|
---|
177 | .setReasonForRequest(reason)
|
---|
178 | .setOutputMessage(tr("Downloading data..."))
|
---|
179 | .setRequestBody(requestBody);
|
---|
180 | activeConnection = client;
|
---|
181 | adaptRequest(client);
|
---|
182 | if (doAuthenticate) {
|
---|
183 | addAuth(client);
|
---|
184 | }
|
---|
185 | if (cancel)
|
---|
186 | throw new OsmTransferCanceledException("Operation canceled");
|
---|
187 |
|
---|
188 | final HttpClient.Response response;
|
---|
189 | try {
|
---|
190 | response = client.connect(progressMonitor);
|
---|
191 | } catch (IOException e) {
|
---|
192 | Logging.error(e);
|
---|
193 | OsmTransferException ote = new OsmTransferException(
|
---|
194 | tr("Could not connect to the OSM server. Please check your internet connection."), e);
|
---|
195 | ote.setUrl(url.toString());
|
---|
196 | throw ote;
|
---|
197 | }
|
---|
198 | try {
|
---|
199 | if (response.getResponseCode() == HttpURLConnection.HTTP_UNAUTHORIZED) {
|
---|
200 | CredentialsManager.getInstance().purgeCredentialsCache(RequestorType.SERVER);
|
---|
201 | throw new OsmApiException(HttpURLConnection.HTTP_UNAUTHORIZED, null, null);
|
---|
202 | }
|
---|
203 |
|
---|
204 | if (response.getResponseCode() == HttpURLConnection.HTTP_PROXY_AUTH)
|
---|
205 | throw new OsmTransferCanceledException("Proxy Authentication Required");
|
---|
206 |
|
---|
207 | if (response.getResponseCode() != HttpURLConnection.HTTP_OK) {
|
---|
208 | String errorHeader = response.getHeaderField("Error");
|
---|
209 | String errorBody = fetchResponseText(response);
|
---|
210 | throw new OsmApiException(response.getResponseCode(), errorHeader, errorBody, url.toString());
|
---|
211 | }
|
---|
212 |
|
---|
213 | response.uncompressAccordingToContentDisposition(uncompressAccordingToContentDisposition);
|
---|
214 | return response.getContent();
|
---|
215 | } catch (OsmTransferException e) {
|
---|
216 | throw e;
|
---|
217 | } catch (IOException e) {
|
---|
218 | throw new OsmTransferException(e);
|
---|
219 | }
|
---|
220 | } finally {
|
---|
221 | progressMonitor.invalidate();
|
---|
222 | }
|
---|
223 | }
|
---|
224 |
|
---|
225 | private static String fetchResponseText(final HttpClient.Response response) {
|
---|
226 | try {
|
---|
227 | return response.fetchContent();
|
---|
228 | } catch (IOException e) {
|
---|
229 | Logging.error(e);
|
---|
230 | return tr("Reading error text failed.");
|
---|
231 | }
|
---|
232 | }
|
---|
233 |
|
---|
234 | /**
|
---|
235 | * Allows subclasses to modify the request.
|
---|
236 | * @param request the prepared request
|
---|
237 | * @since 9308
|
---|
238 | */
|
---|
239 | protected void adaptRequest(HttpClient request) {
|
---|
240 | }
|
---|
241 |
|
---|
242 | /**
|
---|
243 | * Download OSM files from somewhere
|
---|
244 | * @param progressMonitor The progress monitor
|
---|
245 | * @return The corresponding dataset
|
---|
246 | * @throws OsmTransferException if any error occurs
|
---|
247 | */
|
---|
248 | public abstract DataSet parseOsm(ProgressMonitor progressMonitor) throws OsmTransferException;
|
---|
249 |
|
---|
250 | /**
|
---|
251 | * Download compressed OSM files from somewhere
|
---|
252 | * @param progressMonitor The progress monitor
|
---|
253 | * @param compression compression to use
|
---|
254 | * @return The corresponding dataset
|
---|
255 | * @throws OsmTransferException if any error occurs
|
---|
256 | * @since 13352
|
---|
257 | */
|
---|
258 | public DataSet parseOsm(ProgressMonitor progressMonitor, Compression compression) throws OsmTransferException {
|
---|
259 | return null;
|
---|
260 | }
|
---|
261 |
|
---|
262 | /**
|
---|
263 | * Download OSM Change uncompressed files from somewhere
|
---|
264 | * @param progressMonitor The progress monitor
|
---|
265 | * @return The corresponding dataset
|
---|
266 | * @throws OsmTransferException if any error occurs
|
---|
267 | */
|
---|
268 | public DataSet parseOsmChange(ProgressMonitor progressMonitor) throws OsmTransferException {
|
---|
269 | return null;
|
---|
270 | }
|
---|
271 |
|
---|
272 | /**
|
---|
273 | * Download OSM Change compressed files from somewhere
|
---|
274 | * @param progressMonitor The progress monitor
|
---|
275 | * @param compression compression to use
|
---|
276 | * @return The corresponding dataset
|
---|
277 | * @throws OsmTransferException if any error occurs
|
---|
278 | * @since 13352
|
---|
279 | */
|
---|
280 | public DataSet parseOsmChange(ProgressMonitor progressMonitor, Compression compression) throws OsmTransferException {
|
---|
281 | return null;
|
---|
282 | }
|
---|
283 |
|
---|
284 | /**
|
---|
285 | * Download BZip2-compressed OSM Change files from somewhere
|
---|
286 | * @param progressMonitor The progress monitor
|
---|
287 | * @return The corresponding dataset
|
---|
288 | * @throws OsmTransferException if any error occurs
|
---|
289 | * @deprecated use {@link #parseOsmChange(ProgressMonitor, Compression)} instead
|
---|
290 | */
|
---|
291 | @Deprecated
|
---|
292 | public DataSet parseOsmChangeBzip2(ProgressMonitor progressMonitor) throws OsmTransferException {
|
---|
293 | return parseOsmChange(progressMonitor, Compression.BZIP2);
|
---|
294 | }
|
---|
295 |
|
---|
296 | /**
|
---|
297 | * Download GZip-compressed OSM Change files from somewhere
|
---|
298 | * @param progressMonitor The progress monitor
|
---|
299 | * @return The corresponding dataset
|
---|
300 | * @throws OsmTransferException if any error occurs
|
---|
301 | * @deprecated use {@link #parseOsmChange(ProgressMonitor, Compression)} instead
|
---|
302 | */
|
---|
303 | @Deprecated
|
---|
304 | public DataSet parseOsmChangeGzip(ProgressMonitor progressMonitor) throws OsmTransferException {
|
---|
305 | return parseOsmChange(progressMonitor, Compression.GZIP);
|
---|
306 | }
|
---|
307 |
|
---|
308 | /**
|
---|
309 | * Retrieve raw gps waypoints from the server API.
|
---|
310 | * @param progressMonitor The progress monitor
|
---|
311 | * @return The corresponding GPX tracks
|
---|
312 | * @throws OsmTransferException if any error occurs
|
---|
313 | */
|
---|
314 | public GpxData parseRawGps(ProgressMonitor progressMonitor) throws OsmTransferException {
|
---|
315 | return null;
|
---|
316 | }
|
---|
317 |
|
---|
318 | /**
|
---|
319 | * Retrieve compressed GPX files from somewhere.
|
---|
320 | * @param progressMonitor The progress monitor
|
---|
321 | * @param compression compression to use
|
---|
322 | * @return The corresponding GPX tracks
|
---|
323 | * @throws OsmTransferException if any error occurs
|
---|
324 | * @since 13352
|
---|
325 | */
|
---|
326 | public GpxData parseRawGps(ProgressMonitor progressMonitor, Compression compression) throws OsmTransferException {
|
---|
327 | return null;
|
---|
328 | }
|
---|
329 |
|
---|
330 | /**
|
---|
331 | * Retrieve BZip2-compressed GPX files from somewhere.
|
---|
332 | * @param progressMonitor The progress monitor
|
---|
333 | * @return The corresponding GPX tracks
|
---|
334 | * @throws OsmTransferException if any error occurs
|
---|
335 | * @deprecated use {@link #parseRawGps(ProgressMonitor, Compression)} instead
|
---|
336 | * @since 6244
|
---|
337 | */
|
---|
338 | @Deprecated
|
---|
339 | public GpxData parseRawGpsBzip2(ProgressMonitor progressMonitor) throws OsmTransferException {
|
---|
340 | return parseRawGps(progressMonitor, Compression.BZIP2);
|
---|
341 | }
|
---|
342 |
|
---|
343 | /**
|
---|
344 | * Download BZip2-compressed OSM files from somewhere
|
---|
345 | * @param progressMonitor The progress monitor
|
---|
346 | * @return The corresponding dataset
|
---|
347 | * @throws OsmTransferException if any error occurs
|
---|
348 | * @deprecated use {@link #parseOsm(ProgressMonitor, Compression)} instead
|
---|
349 | */
|
---|
350 | @Deprecated
|
---|
351 | public DataSet parseOsmBzip2(ProgressMonitor progressMonitor) throws OsmTransferException {
|
---|
352 | return parseOsm(progressMonitor, Compression.BZIP2);
|
---|
353 | }
|
---|
354 |
|
---|
355 | /**
|
---|
356 | * Download GZip-compressed OSM files from somewhere
|
---|
357 | * @param progressMonitor The progress monitor
|
---|
358 | * @return The corresponding dataset
|
---|
359 | * @throws OsmTransferException if any error occurs
|
---|
360 | * @deprecated use {@link #parseOsm(ProgressMonitor, Compression)} instead
|
---|
361 | */
|
---|
362 | @Deprecated
|
---|
363 | public DataSet parseOsmGzip(ProgressMonitor progressMonitor) throws OsmTransferException {
|
---|
364 | return parseOsm(progressMonitor, Compression.GZIP);
|
---|
365 | }
|
---|
366 |
|
---|
367 | /**
|
---|
368 | * Download Zip-compressed OSM files from somewhere
|
---|
369 | * @param progressMonitor The progress monitor
|
---|
370 | * @return The corresponding dataset
|
---|
371 | * @throws OsmTransferException if any error occurs
|
---|
372 | * @deprecated use {@link #parseOsm(ProgressMonitor, Compression)} instead
|
---|
373 | * @since 6882
|
---|
374 | */
|
---|
375 | @Deprecated
|
---|
376 | public DataSet parseOsmZip(final ProgressMonitor progressMonitor) throws OsmTransferException {
|
---|
377 | return parseOsm(progressMonitor, Compression.ZIP);
|
---|
378 | }
|
---|
379 |
|
---|
380 | /**
|
---|
381 | * Returns true if this reader is adding authentication credentials to the read
|
---|
382 | * request sent to the server.
|
---|
383 | *
|
---|
384 | * @return true if this reader is adding authentication credentials to the read
|
---|
385 | * request sent to the server
|
---|
386 | */
|
---|
387 | public boolean isDoAuthenticate() {
|
---|
388 | return doAuthenticate;
|
---|
389 | }
|
---|
390 |
|
---|
391 | /**
|
---|
392 | * Sets whether this reader adds authentication credentials to the read
|
---|
393 | * request sent to the server.
|
---|
394 | *
|
---|
395 | * @param doAuthenticate true if this reader adds authentication credentials to the read
|
---|
396 | * request sent to the server
|
---|
397 | */
|
---|
398 | public void setDoAuthenticate(boolean doAuthenticate) {
|
---|
399 | this.doAuthenticate = doAuthenticate;
|
---|
400 | }
|
---|
401 |
|
---|
402 | /**
|
---|
403 | * Determines if the GPX data has been parsed properly.
|
---|
404 | * @return true if the GPX data has been parsed properly, false otherwise
|
---|
405 | * @see GpxReader#parse
|
---|
406 | */
|
---|
407 | public final boolean isGpxParsedProperly() {
|
---|
408 | return gpxParsedProperly;
|
---|
409 | }
|
---|
410 |
|
---|
411 | /**
|
---|
412 | * Downloads notes from the API, given API limit parameters
|
---|
413 | *
|
---|
414 | * @param noteLimit How many notes to download.
|
---|
415 | * @param daysClosed Return notes closed this many days in the past. -1 means all notes, ever. 0 means only unresolved notes.
|
---|
416 | * @param progressMonitor Progress monitor for user feedback
|
---|
417 | * @return List of notes returned by the API
|
---|
418 | * @throws OsmTransferException if any errors happen
|
---|
419 | */
|
---|
420 | public List<Note> parseNotes(int noteLimit, int daysClosed, ProgressMonitor progressMonitor) throws OsmTransferException {
|
---|
421 | return null;
|
---|
422 | }
|
---|
423 |
|
---|
424 | /**
|
---|
425 | * Downloads notes from a given raw URL. The URL is assumed to be complete and no API limits are added
|
---|
426 | *
|
---|
427 | * @param progressMonitor progress monitor
|
---|
428 | * @return A list of notes parsed from the URL
|
---|
429 | * @throws OsmTransferException if any error occurs during dialog with OSM API
|
---|
430 | */
|
---|
431 | public List<Note> parseRawNotes(final ProgressMonitor progressMonitor) throws OsmTransferException {
|
---|
432 | return null;
|
---|
433 | }
|
---|
434 |
|
---|
435 | /**
|
---|
436 | * Download notes from a URL that contains a compressed notes dump file
|
---|
437 | * @param progressMonitor progress monitor
|
---|
438 | * @param compression compression to use
|
---|
439 | * @return A list of notes parsed from the URL
|
---|
440 | * @throws OsmTransferException if any error occurs during dialog with OSM API
|
---|
441 | * @since 13352
|
---|
442 | */
|
---|
443 | public List<Note> parseRawNotes(ProgressMonitor progressMonitor, Compression compression) throws OsmTransferException {
|
---|
444 | return null;
|
---|
445 | }
|
---|
446 |
|
---|
447 | /**
|
---|
448 | * Download notes from a URL that contains a bzip2 compressed notes dump file
|
---|
449 | * @param progressMonitor progress monitor
|
---|
450 | * @return A list of notes parsed from the URL
|
---|
451 | * @throws OsmTransferException if any error occurs during dialog with OSM API
|
---|
452 | * @deprecated Use {@link #parseRawNotes(ProgressMonitor, Compression)} instead
|
---|
453 | */
|
---|
454 | @Deprecated
|
---|
455 | public List<Note> parseRawNotesBzip2(final ProgressMonitor progressMonitor) throws OsmTransferException {
|
---|
456 | return parseRawNotes(progressMonitor, Compression.BZIP2);
|
---|
457 | }
|
---|
458 |
|
---|
459 | /**
|
---|
460 | * Returns an attribute from the given DOM node.
|
---|
461 | * @param node DOM node
|
---|
462 | * @param name attribute name
|
---|
463 | * @return attribute value for the given attribute
|
---|
464 | * @since 12510
|
---|
465 | */
|
---|
466 | protected static String getAttribute(Node node, String name) {
|
---|
467 | return node.getAttributes().getNamedItem(name).getNodeValue();
|
---|
468 | }
|
---|
469 |
|
---|
470 | /**
|
---|
471 | * DOM document parser.
|
---|
472 | * @param <R> resulting type
|
---|
473 | * @since 12510
|
---|
474 | */
|
---|
475 | @FunctionalInterface
|
---|
476 | protected interface DomParser<R> {
|
---|
477 | /**
|
---|
478 | * Parses a given DOM document.
|
---|
479 | * @param doc DOM document
|
---|
480 | * @return parsed data
|
---|
481 | * @throws XmlParsingException if an XML parsing error occurs
|
---|
482 | */
|
---|
483 | R parse(Document doc) throws XmlParsingException;
|
---|
484 | }
|
---|
485 |
|
---|
486 | /**
|
---|
487 | * Fetches generic data from the DOM document resulting an API call.
|
---|
488 | * @param api the OSM API call
|
---|
489 | * @param subtask the subtask translated message
|
---|
490 | * @param parser the parser converting the DOM document (OSM API result)
|
---|
491 | * @param <T> data type
|
---|
492 | * @param monitor The progress monitor
|
---|
493 | * @param reason The reason to show on console. Can be {@code null} if no reason is given
|
---|
494 | * @return The converted data
|
---|
495 | * @throws OsmTransferException if something goes wrong
|
---|
496 | * @since 12510
|
---|
497 | */
|
---|
498 | public <T> T fetchData(String api, String subtask, DomParser<T> parser, ProgressMonitor monitor, String reason)
|
---|
499 | throws OsmTransferException {
|
---|
500 | try {
|
---|
501 | monitor.beginTask("");
|
---|
502 | monitor.indeterminateSubTask(subtask);
|
---|
503 | try (InputStream in = getInputStream(api, monitor.createSubTaskMonitor(1, true), reason)) {
|
---|
504 | return parser.parse(Utils.parseSafeDOM(in));
|
---|
505 | }
|
---|
506 | } catch (OsmTransferException e) {
|
---|
507 | throw e;
|
---|
508 | } catch (IOException | ParserConfigurationException | SAXException e) {
|
---|
509 | throw new OsmTransferException(e);
|
---|
510 | } finally {
|
---|
511 | monitor.finishTask();
|
---|
512 | }
|
---|
513 | }
|
---|
514 | }
|
---|