1 | //License: GPL. See README for details.
|
---|
2 | package org.openstreetmap.josm.io;
|
---|
3 |
|
---|
4 | import static org.openstreetmap.josm.tools.I18n.tr;
|
---|
5 |
|
---|
6 | import java.io.BufferedReader;
|
---|
7 | import java.io.BufferedWriter;
|
---|
8 | import java.io.IOException;
|
---|
9 | import java.io.InputStream;
|
---|
10 | import java.io.InputStreamReader;
|
---|
11 | import java.io.OutputStream;
|
---|
12 | import java.io.OutputStreamWriter;
|
---|
13 | import java.io.PrintWriter;
|
---|
14 | import java.io.StringReader;
|
---|
15 | import java.io.StringWriter;
|
---|
16 | import java.net.ConnectException;
|
---|
17 | import java.net.HttpURLConnection;
|
---|
18 | import java.net.SocketTimeoutException;
|
---|
19 | import java.net.URL;
|
---|
20 | import java.net.UnknownHostException;
|
---|
21 | import java.util.ArrayList;
|
---|
22 | import java.util.Collection;
|
---|
23 | import java.util.HashMap;
|
---|
24 | import java.util.Properties;
|
---|
25 |
|
---|
26 | import javax.swing.JPopupMenu;
|
---|
27 | import javax.xml.parsers.SAXParserFactory;
|
---|
28 |
|
---|
29 | import org.openstreetmap.josm.Main;
|
---|
30 | import org.openstreetmap.josm.data.osm.Changeset;
|
---|
31 | import org.openstreetmap.josm.data.osm.OsmPrimitive;
|
---|
32 | import org.openstreetmap.josm.data.osm.OsmPrimitiveType;
|
---|
33 | import org.openstreetmap.josm.data.osm.visitor.CreateOsmChangeVisitor;
|
---|
34 | import org.openstreetmap.josm.gui.progress.ProgressMonitor;
|
---|
35 | import org.xml.sax.Attributes;
|
---|
36 | import org.xml.sax.InputSource;
|
---|
37 | import org.xml.sax.SAXException;
|
---|
38 | import org.xml.sax.helpers.DefaultHandler;
|
---|
39 |
|
---|
40 | /**
|
---|
41 | * Class that encapsulates the communications with the OSM API.
|
---|
42 | *
|
---|
43 | * All interaction with the server-side OSM API should go through this class.
|
---|
44 | *
|
---|
45 | * It is conceivable to extract this into an interface later and create various
|
---|
46 | * classes implementing the interface, to be able to talk to various kinds of servers.
|
---|
47 | *
|
---|
48 | */
|
---|
49 | public class OsmApi extends OsmConnection {
|
---|
50 | /** max number of retries to send a request in case of HTTP 500 errors or timeouts */
|
---|
51 | static public final int DEFAULT_MAX_NUM_RETRIES = 5;
|
---|
52 |
|
---|
53 | /** the collection of instantiated OSM APIs */
|
---|
54 | private static HashMap<String, OsmApi> instances = new HashMap<String, OsmApi>();
|
---|
55 |
|
---|
56 | /**
|
---|
57 | * replies the {@see OsmApi} for a given server URL
|
---|
58 | *
|
---|
59 | * @param serverUrl the server URL
|
---|
60 | * @return the OsmApi
|
---|
61 | * @throws IllegalArgumentException thrown, if serverUrl is null
|
---|
62 | *
|
---|
63 | */
|
---|
64 | static public OsmApi getOsmApi(String serverUrl) {
|
---|
65 | OsmApi api = instances.get(serverUrl);
|
---|
66 | if (api == null) {
|
---|
67 | api = new OsmApi(serverUrl);
|
---|
68 | instances.put(serverUrl,api);
|
---|
69 | }
|
---|
70 | return api;
|
---|
71 | }
|
---|
72 | /**
|
---|
73 | * replies the {@see OsmApi} for the URL given by the preference <code>osm-server.url</code>
|
---|
74 | *
|
---|
75 | * @return the OsmApi
|
---|
76 | * @exception IllegalStateException thrown, if the preference <code>osm-server.url</code> is not set
|
---|
77 | *
|
---|
78 | */
|
---|
79 | static public OsmApi getOsmApi() {
|
---|
80 | String serverUrl = Main.pref.get("osm-server.url", "http://api.openstreetmap.org/api");
|
---|
81 | if (serverUrl == null)
|
---|
82 | throw new IllegalStateException(tr("preference ''{0}'' missing. Can't initialize OsmApi", "osm-server.url"));
|
---|
83 | return getOsmApi(serverUrl);
|
---|
84 | }
|
---|
85 |
|
---|
86 | /** the server URL */
|
---|
87 | private String serverUrl;
|
---|
88 |
|
---|
89 | /**
|
---|
90 | * Object describing current changeset
|
---|
91 | */
|
---|
92 | private Changeset changeset;
|
---|
93 |
|
---|
94 | /**
|
---|
95 | * API version used for server communications
|
---|
96 | */
|
---|
97 | private String version = null;
|
---|
98 |
|
---|
99 | /** the api capabilities */
|
---|
100 | private Capabilities capabilities = new Capabilities();
|
---|
101 |
|
---|
102 | /**
|
---|
103 | * true if successfully initialized
|
---|
104 | */
|
---|
105 | private boolean initialized = false;
|
---|
106 |
|
---|
107 | private StringWriter swriter = new StringWriter();
|
---|
108 | private OsmWriter osmWriter = new OsmWriter(new PrintWriter(swriter), true, null);
|
---|
109 |
|
---|
110 | /**
|
---|
111 | * A parser for the "capabilities" response XML
|
---|
112 | */
|
---|
113 | private class CapabilitiesParser extends DefaultHandler {
|
---|
114 | @Override
|
---|
115 | public void startDocument() throws SAXException {
|
---|
116 | capabilities.clear();
|
---|
117 | }
|
---|
118 |
|
---|
119 | @Override public void startElement(String namespaceURI, String localName, String qName, Attributes atts) throws SAXException {
|
---|
120 | for (int i=0; i< qName.length(); i++) {
|
---|
121 | capabilities.put(qName, atts.getQName(i), atts.getValue(i));
|
---|
122 | }
|
---|
123 | }
|
---|
124 | }
|
---|
125 |
|
---|
126 | /**
|
---|
127 | * creates an OSM api for a specific server URL
|
---|
128 | *
|
---|
129 | * @param serverUrl the server URL. Must not be null
|
---|
130 | * @exception IllegalArgumentException thrown, if serverUrl is null
|
---|
131 | */
|
---|
132 | protected OsmApi(String serverUrl) {
|
---|
133 | if (serverUrl == null)
|
---|
134 | throw new IllegalArgumentException(tr("parameter '{0}' must not be null", "serverUrl"));
|
---|
135 | this.serverUrl = serverUrl;
|
---|
136 | }
|
---|
137 |
|
---|
138 | /**
|
---|
139 | * Returns the OSM protocol version we use to talk to the server.
|
---|
140 | * @return protocol version, or null if not yet negotiated.
|
---|
141 | */
|
---|
142 | public String getVersion() {
|
---|
143 | return version;
|
---|
144 | }
|
---|
145 |
|
---|
146 | /**
|
---|
147 | * Returns true if the negotiated version supports changesets.
|
---|
148 | * @return true if the negotiated version supports changesets.
|
---|
149 | */
|
---|
150 | public boolean hasChangesetSupport() {
|
---|
151 | return ((version != null) && (version.compareTo("0.6")>=0));
|
---|
152 | }
|
---|
153 |
|
---|
154 | /**
|
---|
155 | * Initializes this component by negotiating a protocol version with the server.
|
---|
156 | *
|
---|
157 | * @exception OsmApiInitializationException thrown, if an exception occurs
|
---|
158 | */
|
---|
159 | public void initialize() throws OsmApiInitializationException {
|
---|
160 | if (initialized)
|
---|
161 | return;
|
---|
162 | initAuthentication();
|
---|
163 | try {
|
---|
164 | String s = sendRequest("GET", "capabilities", null);
|
---|
165 | InputSource inputSource = new InputSource(new StringReader(s));
|
---|
166 | SAXParserFactory.newInstance().newSAXParser().parse(inputSource, new CapabilitiesParser());
|
---|
167 | if (capabilities.supportsVersion("0.6")) {
|
---|
168 | version = "0.6";
|
---|
169 | } else if (capabilities.supportsVersion("0.5")) {
|
---|
170 | version = "0.5";
|
---|
171 | } else {
|
---|
172 | System.err.println(tr("This version of JOSM is incompatible with the configured server."));
|
---|
173 | System.err.println(tr("It supports protocol versions 0.5 and 0.6, while the server says it supports {0} to {1}.",
|
---|
174 | capabilities.get("version", "minimum"), capabilities.get("version", "maximum")));
|
---|
175 | initialized = false;
|
---|
176 | }
|
---|
177 | System.out.println(tr("Communications with {0} established using protocol version {1}",
|
---|
178 | serverUrl,
|
---|
179 | version));
|
---|
180 | osmWriter.setVersion(version);
|
---|
181 | initialized = true;
|
---|
182 | } catch (Exception ex) {
|
---|
183 | initialized = false;
|
---|
184 | throw new OsmApiInitializationException(ex);
|
---|
185 | }
|
---|
186 | }
|
---|
187 |
|
---|
188 | /**
|
---|
189 | * Makes an XML string from an OSM primitive. Uses the OsmWriter class.
|
---|
190 | * @param o the OSM primitive
|
---|
191 | * @param addBody true to generate the full XML, false to only generate the encapsulating tag
|
---|
192 | * @return XML string
|
---|
193 | */
|
---|
194 | private String toXml(OsmPrimitive o, boolean addBody) {
|
---|
195 | swriter.getBuffer().setLength(0);
|
---|
196 | osmWriter.setWithBody(addBody);
|
---|
197 | osmWriter.setChangeset(changeset);
|
---|
198 | osmWriter.header();
|
---|
199 | o.visit(osmWriter);
|
---|
200 | osmWriter.footer();
|
---|
201 | osmWriter.out.flush();
|
---|
202 | return swriter.toString();
|
---|
203 | }
|
---|
204 |
|
---|
205 | /**
|
---|
206 | * Returns the base URL for API requests, including the negotiated version number.
|
---|
207 | * @return base URL string
|
---|
208 | */
|
---|
209 | public String getBaseUrl() {
|
---|
210 | StringBuffer rv = new StringBuffer(serverUrl);
|
---|
211 | if (version != null) {
|
---|
212 | rv.append("/");
|
---|
213 | rv.append(version);
|
---|
214 | }
|
---|
215 | rv.append("/");
|
---|
216 | // this works around a ruby (or lighttpd) bug where two consecutive slashes in
|
---|
217 | // an URL will cause a "404 not found" response.
|
---|
218 | int p; while ((p = rv.indexOf("//", 6)) > -1) { rv.delete(p, p + 1); }
|
---|
219 | return rv.toString();
|
---|
220 | }
|
---|
221 |
|
---|
222 | /**
|
---|
223 | * Creates an OSM primitive on the server. The OsmPrimitive object passed in
|
---|
224 | * is modified by giving it the server-assigned id.
|
---|
225 | *
|
---|
226 | * @param osm the primitive
|
---|
227 | * @throws OsmTransferException if something goes wrong
|
---|
228 | */
|
---|
229 | public void createPrimitive(OsmPrimitive osm) throws OsmTransferException {
|
---|
230 | initialize();
|
---|
231 | String ret = "";
|
---|
232 | try {
|
---|
233 | ret = sendRequest("PUT", OsmPrimitiveType.from(osm).getAPIName()+"/create", toXml(osm, true));
|
---|
234 | osm.id = Long.parseLong(ret.trim());
|
---|
235 | osm.version = 1;
|
---|
236 | } catch(NumberFormatException e){
|
---|
237 | throw new OsmTransferException(tr("unexpected format of id replied by the server, got ''{0}''", ret));
|
---|
238 | }
|
---|
239 | }
|
---|
240 |
|
---|
241 | /**
|
---|
242 | * Modifies an OSM primitive on the server. For protocols greater than 0.5,
|
---|
243 | * the OsmPrimitive object passed in is modified by giving it the server-assigned
|
---|
244 | * version.
|
---|
245 | *
|
---|
246 | * @param osm the primitive
|
---|
247 | * @throws OsmTransferException if something goes wrong
|
---|
248 | */
|
---|
249 | public void modifyPrimitive(OsmPrimitive osm) throws OsmTransferException {
|
---|
250 | initialize();
|
---|
251 | if (version.equals("0.5")) {
|
---|
252 | // legacy mode does not return the new object version.
|
---|
253 | sendRequest("PUT", OsmPrimitiveType.from(osm).getAPIName()+"/" + osm.id, toXml(osm, true));
|
---|
254 | } else {
|
---|
255 | String ret = null;
|
---|
256 | // normal mode (0.6 and up) returns new object version.
|
---|
257 | try {
|
---|
258 | ret = sendRequest("PUT", OsmPrimitiveType.from(osm).getAPIName()+"/" + osm.id, toXml(osm, true));
|
---|
259 | osm.version = Integer.parseInt(ret.trim());
|
---|
260 | } catch(NumberFormatException e) {
|
---|
261 | throw new OsmTransferException(tr("unexpected format of new version of modified primitive ''{0}'', got ''{1}''", osm.id, ret));
|
---|
262 | }
|
---|
263 | }
|
---|
264 | }
|
---|
265 |
|
---|
266 | /**
|
---|
267 | * Deletes an OSM primitive on the server.
|
---|
268 | * @param osm the primitive
|
---|
269 | * @throws OsmTransferException if something goes wrong
|
---|
270 | */
|
---|
271 | public void deletePrimitive(OsmPrimitive osm) throws OsmTransferException {
|
---|
272 | initialize();
|
---|
273 | // legacy mode does not require payload. normal mode (0.6 and up) requires payload for version matching.
|
---|
274 | sendRequest("DELETE", OsmPrimitiveType.from(osm).getAPIName()+"/" + osm.id, version.equals("0.5") ? null : toXml(osm, false));
|
---|
275 | }
|
---|
276 |
|
---|
277 | /**
|
---|
278 | * Creates a new changeset on the server to use for subsequent calls.
|
---|
279 | * @param comment the "commit comment" for the new changeset
|
---|
280 | * @throws OsmTransferException signifying a non-200 return code, or connection errors
|
---|
281 | */
|
---|
282 | public void createChangeset(String comment, ProgressMonitor progressMonitor) throws OsmTransferException {
|
---|
283 | progressMonitor.beginTask((tr("Opening changeset...")));
|
---|
284 | try {
|
---|
285 | changeset = new Changeset();
|
---|
286 | Properties sysProp = System.getProperties();
|
---|
287 | Object ua = sysProp.get("http.agent");
|
---|
288 | changeset.put("created_by", (ua == null) ? "JOSM" : ua.toString());
|
---|
289 | changeset.put("comment", comment);
|
---|
290 | createPrimitive(changeset);
|
---|
291 | } finally {
|
---|
292 | progressMonitor.finishTask();
|
---|
293 | }
|
---|
294 | }
|
---|
295 |
|
---|
296 | /**
|
---|
297 | * Closes a changeset on the server.
|
---|
298 | *
|
---|
299 | * @throws OsmTransferException if something goes wrong.
|
---|
300 | */
|
---|
301 | public void stopChangeset(ProgressMonitor progressMonitor) throws OsmTransferException {
|
---|
302 | progressMonitor.beginTask(tr("Closing changeset..."));
|
---|
303 | try {
|
---|
304 | initialize();
|
---|
305 | sendRequest("PUT", "changeset" + "/" + changeset.id + "/close", null);
|
---|
306 | changeset = null;
|
---|
307 | } finally {
|
---|
308 | progressMonitor.finishTask();
|
---|
309 | }
|
---|
310 | }
|
---|
311 |
|
---|
312 | /**
|
---|
313 | * Uploads a list of changes in "diff" form to the server.
|
---|
314 | *
|
---|
315 | * @param list the list of changed OSM Primitives
|
---|
316 | * @return list of processed primitives
|
---|
317 | * @throws OsmTransferException if something is wrong
|
---|
318 | */
|
---|
319 | public Collection<OsmPrimitive> uploadDiff(final Collection<OsmPrimitive> list, ProgressMonitor progressMonitor) throws OsmTransferException {
|
---|
320 |
|
---|
321 | progressMonitor.beginTask("", list.size() * 2);
|
---|
322 | try {
|
---|
323 | if (changeset == null)
|
---|
324 | throw new OsmTransferException(tr("No changeset present for diff upload"));
|
---|
325 |
|
---|
326 | initialize();
|
---|
327 | final ArrayList<OsmPrimitive> processed = new ArrayList<OsmPrimitive>();
|
---|
328 |
|
---|
329 | CreateOsmChangeVisitor duv = new CreateOsmChangeVisitor(changeset, OsmApi.this);
|
---|
330 |
|
---|
331 | progressMonitor.subTask(tr("Preparing..."));
|
---|
332 | for (OsmPrimitive osm : list) {
|
---|
333 | osm.visit(duv);
|
---|
334 | progressMonitor.worked(1);
|
---|
335 | }
|
---|
336 | progressMonitor.indeterminateSubTask(tr("Uploading..."));
|
---|
337 |
|
---|
338 | String diff = duv.getDocument();
|
---|
339 | try {
|
---|
340 | String diffresult = sendRequest("POST", "changeset/" + changeset.id + "/upload", diff);
|
---|
341 | DiffResultReader.parseDiffResult(diffresult, list, processed, duv.getNewIdMap(),
|
---|
342 | progressMonitor.createSubTaskMonitor(ProgressMonitor.ALL_TICKS, false));
|
---|
343 | } catch(OsmTransferException e) {
|
---|
344 | throw e;
|
---|
345 | } catch(Exception e) {
|
---|
346 | throw new OsmTransferException(e);
|
---|
347 | }
|
---|
348 |
|
---|
349 | return processed;
|
---|
350 | } finally {
|
---|
351 | progressMonitor.finishTask();
|
---|
352 | }
|
---|
353 | }
|
---|
354 |
|
---|
355 |
|
---|
356 |
|
---|
357 | private void sleepAndListen() throws OsmTransferCancelledException {
|
---|
358 | System.out.print(tr("Waiting 10 seconds ... "));
|
---|
359 | for(int i=0; i < 10; i++) {
|
---|
360 | if (cancel || isAuthCancelled())
|
---|
361 | throw new OsmTransferCancelledException();
|
---|
362 | try {
|
---|
363 | Thread.sleep(1000);
|
---|
364 | } catch (InterruptedException ex) {}
|
---|
365 | }
|
---|
366 | System.out.println(tr("OK - trying again."));
|
---|
367 | }
|
---|
368 |
|
---|
369 | /**
|
---|
370 | * Replies the max. number of retries in case of 5XX errors on the server
|
---|
371 | *
|
---|
372 | * @return the max number of retries
|
---|
373 | */
|
---|
374 | protected int getMaxRetries() {
|
---|
375 | int ret = Main.pref.getInteger("osm-server.max-num-retries", DEFAULT_MAX_NUM_RETRIES);
|
---|
376 | return Math.max(ret,0);
|
---|
377 | }
|
---|
378 |
|
---|
379 | /**
|
---|
380 | * Generic method for sending requests to the OSM API.
|
---|
381 | *
|
---|
382 | * This method will automatically re-try any requests that are answered with a 5xx
|
---|
383 | * error code, or that resulted in a timeout exception from the TCP layer.
|
---|
384 | *
|
---|
385 | * @param requestMethod The http method used when talking with the server.
|
---|
386 | * @param urlSuffix The suffix to add at the server url, not including the version number,
|
---|
387 | * but including any object ids (e.g. "/way/1234/history").
|
---|
388 | * @param requestBody the body of the HTTP request, if any.
|
---|
389 | *
|
---|
390 | * @return the body of the HTTP response, if and only if the response code was "200 OK".
|
---|
391 | * @exception OsmTransferException if the HTTP return code was not 200 (and retries have
|
---|
392 | * been exhausted), or rewrapping a Java exception.
|
---|
393 | */
|
---|
394 | private String sendRequest(String requestMethod, String urlSuffix,
|
---|
395 | String requestBody) throws OsmTransferException {
|
---|
396 |
|
---|
397 | StringBuffer responseBody = new StringBuffer();
|
---|
398 |
|
---|
399 | int retries = getMaxRetries();
|
---|
400 |
|
---|
401 | while(true) { // the retry loop
|
---|
402 | try {
|
---|
403 | URL url = new URL(new URL(getBaseUrl()), urlSuffix, new MyHttpHandler());
|
---|
404 | System.out.print(requestMethod + " " + url + "... ");
|
---|
405 | activeConnection = (HttpURLConnection)url.openConnection();
|
---|
406 | activeConnection.setConnectTimeout(15000);
|
---|
407 | activeConnection.setRequestMethod(requestMethod);
|
---|
408 | addAuth(activeConnection);
|
---|
409 |
|
---|
410 | if (requestMethod.equals("PUT") || requestMethod.equals("POST") || requestMethod.equals("DELETE")) {
|
---|
411 | activeConnection.setDoOutput(true);
|
---|
412 | activeConnection.setRequestProperty("Content-type", "text/xml");
|
---|
413 | OutputStream out = activeConnection.getOutputStream();
|
---|
414 |
|
---|
415 | // It seems that certain bits of the Ruby API are very unhappy upon
|
---|
416 | // receipt of a PUT/POST message withtout a Content-length header,
|
---|
417 | // even if the request has no payload.
|
---|
418 | // Since Java will not generate a Content-length header unless
|
---|
419 | // we use the output stream, we create an output stream for PUT/POST
|
---|
420 | // even if there is no payload.
|
---|
421 | if (requestBody != null) {
|
---|
422 | BufferedWriter bwr = new BufferedWriter(new OutputStreamWriter(out, "UTF-8"));
|
---|
423 | bwr.write(requestBody);
|
---|
424 | bwr.flush();
|
---|
425 | }
|
---|
426 | out.close();
|
---|
427 | }
|
---|
428 |
|
---|
429 | activeConnection.connect();
|
---|
430 | System.out.println(activeConnection.getResponseMessage());
|
---|
431 | int retCode = activeConnection.getResponseCode();
|
---|
432 |
|
---|
433 | if (retCode >= 500) {
|
---|
434 | if (retries-- > 0) {
|
---|
435 | sleepAndListen();
|
---|
436 | int maxRetries = getMaxRetries();
|
---|
437 | System.out.println(tr("Starting retry {0} of {1}.", maxRetries - retries,maxRetries));
|
---|
438 | continue;
|
---|
439 | }
|
---|
440 | }
|
---|
441 |
|
---|
442 | // populate return fields.
|
---|
443 | responseBody.setLength(0);
|
---|
444 |
|
---|
445 | // If the API returned an error code like 403 forbidden, getInputStream
|
---|
446 | // will fail with an IOException.
|
---|
447 | InputStream i = null;
|
---|
448 | try {
|
---|
449 | i = activeConnection.getInputStream();
|
---|
450 | } catch (IOException ioe) {
|
---|
451 | i = activeConnection.getErrorStream();
|
---|
452 | }
|
---|
453 | BufferedReader in = new BufferedReader(new InputStreamReader(i));
|
---|
454 |
|
---|
455 | String s;
|
---|
456 | while((s = in.readLine()) != null) {
|
---|
457 | responseBody.append(s);
|
---|
458 | responseBody.append("\n");
|
---|
459 | }
|
---|
460 | String errorHeader = null;
|
---|
461 | // Look for a detailed error message from the server
|
---|
462 | if (activeConnection.getHeaderField("Error") != null) {
|
---|
463 | errorHeader = activeConnection.getHeaderField("Error");
|
---|
464 | System.err.println("Error header: " + errorHeader);
|
---|
465 | } else if (retCode != 200 && responseBody.length()>0) {
|
---|
466 | System.err.println("Error body: " + responseBody);
|
---|
467 | }
|
---|
468 | activeConnection.disconnect();
|
---|
469 |
|
---|
470 | if (retCode != 200)
|
---|
471 | throw new OsmApiException(
|
---|
472 | retCode,
|
---|
473 | errorHeader == null? null : errorHeader.trim(),
|
---|
474 | responseBody == null ? null : responseBody.toString().trim()
|
---|
475 | );
|
---|
476 |
|
---|
477 | return responseBody.toString();
|
---|
478 | } catch (UnknownHostException e) {
|
---|
479 | throw new OsmTransferException(e);
|
---|
480 | } catch (SocketTimeoutException e) {
|
---|
481 | if (retries-- > 0) {
|
---|
482 | continue;
|
---|
483 | }
|
---|
484 | throw new OsmTransferException(e);
|
---|
485 | } catch (ConnectException e) {
|
---|
486 | if (retries-- > 0) {
|
---|
487 | continue;
|
---|
488 | }
|
---|
489 | throw new OsmTransferException(e);
|
---|
490 | } catch (Exception e) {
|
---|
491 | if (e instanceof OsmTransferException) throw (OsmTransferException) e;
|
---|
492 | throw new OsmTransferException(e);
|
---|
493 | }
|
---|
494 | }
|
---|
495 | }
|
---|
496 |
|
---|
497 | /**
|
---|
498 | * returns the API capabilities; null, if the API is not initialized yet
|
---|
499 | *
|
---|
500 | * @return the API capabilities
|
---|
501 | */
|
---|
502 | public Capabilities getCapabilities() {
|
---|
503 | return capabilities;
|
---|
504 | }
|
---|
505 |
|
---|
506 | }
|
---|