Commit | Line | Data |
---|---|---|
a046fa49 NR |
1 | package be.nikiroo.jvcard.remote; |
2 | ||
3 | import java.io.BufferedReader; | |
4 | import java.io.BufferedWriter; | |
5 | import java.io.File; | |
6 | import java.io.FileInputStream; | |
7 | import java.io.FileNotFoundException; | |
8 | import java.io.FileOutputStream; | |
9 | import java.io.IOException; | |
10 | import java.io.InputStreamReader; | |
11 | import java.io.OutputStreamWriter; | |
12 | import java.net.Socket; | |
13 | import java.net.UnknownHostException; | |
14 | import java.security.InvalidParameterException; | |
845fb1d7 | 15 | import java.util.HashMap; |
0b6140e4 | 16 | import java.util.LinkedList; |
a046fa49 | 17 | import java.util.List; |
845fb1d7 | 18 | import java.util.Map; |
a046fa49 NR |
19 | |
20 | import be.nikiroo.jvcard.Card; | |
0b6140e4 NR |
21 | import be.nikiroo.jvcard.Contact; |
22 | import be.nikiroo.jvcard.Data; | |
5ad0e17e NR |
23 | import be.nikiroo.jvcard.launcher.CardResult; |
24 | import be.nikiroo.jvcard.launcher.CardResult.MergeCallback; | |
a046fa49 | 25 | import be.nikiroo.jvcard.parsers.Format; |
0b6140e4 | 26 | import be.nikiroo.jvcard.parsers.Vcard21Parser; |
7da41ecd | 27 | import be.nikiroo.jvcard.resources.StringUtils; |
e119a1c1 NR |
28 | import be.nikiroo.jvcard.resources.bundles.RemoteBundle; |
29 | import be.nikiroo.jvcard.resources.enums.RemotingOption; | |
a046fa49 NR |
30 | |
31 | /** | |
32 | * This class will synchronise {@link Card}s between a local instance an a | |
33 | * remote jVCard server. | |
34 | * | |
35 | * @author niki | |
36 | * | |
37 | */ | |
38 | public class Sync { | |
39 | /** The time in ms after which we declare that 2 timestamps are different */ | |
02b341aa | 40 | static private final int GRACE_TIME = 2001; |
a046fa49 NR |
41 | |
42 | /** Directory where to store local cache of remote {@link Card}s. */ | |
43 | static private File cacheDir; | |
44 | ||
45 | /** | |
46 | * Directory where to store cache of remote {@link Card}s without | |
47 | * modifications since the last synchronisation. | |
48 | */ | |
49 | static private File cacheDirOrig; | |
50 | /** Directory where to store timestamps for files in cacheDirOrig */ | |
51 | static private File cacheDirOrigTS; | |
52 | ||
53 | static private boolean autoSync; | |
54 | private String host; | |
55 | private int port; | |
56 | ||
57 | /** Resource name on the remote server. */ | |
58 | private String name; | |
59 | ||
60 | /** | |
61 | * Create a new {@link Sync} object, ready to operate for the given resource | |
62 | * on the given server. | |
63 | * | |
64 | * <p> | |
65 | * Note that the format used is the standard "host:port_number/file", with | |
66 | * an optional <tt>jvcard://</tt> prefix. | |
67 | * </p> | |
68 | * | |
69 | * <p> | |
70 | * E.g.: <tt>jvcard://localhost:4444/family.vcf</tt> | |
71 | * </p> | |
72 | * | |
73 | * @param url | |
74 | * the server and port to contact, optionally prefixed with | |
75 | * <tt>jvcard://</tt> | |
76 | * | |
77 | * @throws InvalidParameterException | |
78 | * if the remote configuration file <tt>remote.properties</tt> | |
79 | * cannot be accessed or if the cache directory cannot be used | |
80 | */ | |
81 | public Sync(String url) { | |
82 | if (cacheDir == null) { | |
83 | config(); | |
84 | } | |
85 | ||
86 | try { | |
87 | url = url.replace("jvcard://", ""); | |
88 | int indexSl = url.indexOf('/'); | |
89 | this.name = url.substring(indexSl + 1); | |
90 | url = url.substring(0, indexSl); | |
91 | this.host = url.split("\\:")[0]; | |
92 | this.port = Integer.parseInt(url.split("\\:")[1]); | |
93 | } catch (Exception e) { | |
94 | throw new InvalidParameterException( | |
95 | "the given parameter was not a valid HOST:PORT value: " | |
96 | + url); | |
97 | } | |
98 | } | |
99 | ||
100 | /** | |
101 | * Create a new {@link Sync} object, ready to operate on the given server. | |
102 | * | |
103 | * | |
104 | * @param host | |
105 | * the server to contact | |
106 | * @param port | |
107 | * the port to use | |
108 | * @param name | |
109 | * the resource name to synchronise to | |
110 | */ | |
111 | public Sync(String host, int port, String name) { | |
112 | this.host = host; | |
113 | this.port = port; | |
114 | this.name = name; | |
115 | } | |
116 | ||
117 | /** | |
02b341aa | 118 | * Check if the remote server already know about this resource. |
a046fa49 NR |
119 | * |
120 | * @return TRUE if it is possible to contact the remote server and that this | |
121 | * server has the resource available | |
122 | */ | |
123 | public boolean isAvailable() { | |
124 | try { | |
125 | SimpleSocket s = new SimpleSocket(new Socket(host, port), | |
126 | "check avail client"); | |
127 | s.open(true); | |
845fb1d7 | 128 | s.sendCommand(Command.LIST_CARD); |
a046fa49 NR |
129 | List<String> timestampedFiles = s.receiveBlock(); |
130 | s.close(); | |
131 | ||
132 | for (String timestampedFile : timestampedFiles) { | |
133 | String file = timestampedFile.substring(StringUtils.fromTime(0) | |
134 | .length() + 1); | |
135 | if (file.equals(name)) { | |
136 | return true; | |
137 | } | |
138 | } | |
139 | } catch (Exception e) { | |
140 | } | |
141 | ||
142 | return false; | |
143 | } | |
144 | ||
02b341aa NR |
145 | /** |
146 | * Synchronise the current resource if needed, then return the locally | |
147 | * cached version of said resource. | |
148 | * | |
149 | * <p> | |
150 | * A synchronisation is deemed necessary if one of the following is true: | |
151 | * <ul> | |
152 | * <li><tt>force</tt> is TRUE</li> | |
153 | * <li><tt>CLIENT_AUTO_SYNC</tt> is TRUE in the configuration file</li> | |
154 | * <li>the {@link Card} exists locally but not on the remote server</li> | |
155 | * <li>the {@link Card} exists on the remote server but not locally</li> | |
156 | * </ul> | |
157 | * </p> | |
158 | * | |
159 | * @param force | |
160 | * force the synchronisation to occur | |
5ad0e17e NR |
161 | * @param callback |
162 | * the {@link MergeCallback} to call in case of conflict | |
02b341aa NR |
163 | * |
164 | * @return the synchronised (or not) {@link Card} | |
165 | * | |
166 | * @throws UnknownHostException | |
167 | * in case of server name resolution failure | |
168 | * @throws IOException | |
169 | * in case of IO error | |
170 | */ | |
5ad0e17e NR |
171 | public CardResult sync(boolean force, MergeCallback callback) |
172 | throws UnknownHostException, IOException { | |
a046fa49 NR |
173 | long tsOriginal = getLastModified(); |
174 | ||
845fb1d7 | 175 | Card local = new Card(getCache(cacheDir), Format.VCard21); |
845fb1d7 | 176 | |
a046fa49 NR |
177 | // do NOT update unless we are in autoSync or forced mode or we don't |
178 | // have the file on cache | |
179 | if (!autoSync && !force && tsOriginal != -1) { | |
5ad0e17e | 180 | return new CardResult(local, true, false, false); |
a046fa49 NR |
181 | } |
182 | ||
183 | SimpleSocket s = new SimpleSocket(new Socket(host, port), "sync client"); | |
184 | ||
185 | // get the server time stamp | |
186 | long tsServer = -1; | |
5ad0e17e | 187 | boolean serverChanges = false; |
a046fa49 NR |
188 | try { |
189 | s.open(true); | |
845fb1d7 | 190 | s.sendCommand(Command.LIST_CARD); |
a046fa49 NR |
191 | List<String> timestampedFiles = s.receiveBlock(); |
192 | ||
193 | for (String timestampedFile : timestampedFiles) { | |
194 | String file = timestampedFile.substring(StringUtils.fromTime(0) | |
195 | .length() + 1); | |
196 | if (file.equals(name)) { | |
197 | tsServer = StringUtils.toTime(timestampedFile.substring(0, | |
198 | StringUtils.fromTime(0).length())); | |
199 | break; | |
200 | } | |
201 | } | |
a046fa49 | 202 | |
4298276a | 203 | // Error cases: |
02b341aa | 204 | // - file not present neither in cache nor on server |
4298276a NR |
205 | // - remote < previous |
206 | if ((tsServer == -1 && tsOriginal == -1) | |
207 | || (tsServer != -1 && tsOriginal != -1 && ((tsOriginal - tsServer) > GRACE_TIME))) { | |
208 | throw new IOException( | |
209 | "The timestamps between server and client are invalid"); | |
210 | } | |
a046fa49 | 211 | |
4298276a | 212 | // Check changes |
5ad0e17e | 213 | serverChanges = (tsServer - tsOriginal) > GRACE_TIME; |
4298276a | 214 | boolean localChanges = false; |
4298276a NR |
215 | Card original = null; |
216 | if (tsOriginal != -1) { | |
4298276a NR |
217 | original = new Card(getCache(cacheDirOrig), Format.VCard21); |
218 | localChanges = !local.isEquals(original, true); | |
219 | } | |
a046fa49 | 220 | |
845fb1d7 | 221 | Command action = null; |
a046fa49 | 222 | |
4298276a NR |
223 | // Sync to server if: |
224 | if (localChanges) { | |
845fb1d7 | 225 | action = Command.PUT_CARD; |
4298276a | 226 | } |
a046fa49 | 227 | |
4298276a NR |
228 | // Sync from server if: |
229 | if (serverChanges) { | |
845fb1d7 | 230 | action = Command.HASH_CONTACT; |
4298276a | 231 | } |
0b6140e4 | 232 | |
4298276a NR |
233 | // Sync from/to server if |
234 | if (serverChanges && localChanges) { | |
845fb1d7 | 235 | action = Command.HELP; |
4298276a | 236 | } |
a046fa49 | 237 | |
02b341aa | 238 | // POST the whole file if: |
4298276a | 239 | if (tsServer == -1) { |
845fb1d7 | 240 | action = Command.POST_CARD; |
4298276a | 241 | } |
a046fa49 | 242 | |
4298276a NR |
243 | // GET the whole file if: |
244 | if (tsOriginal == -1) { | |
845fb1d7 | 245 | action = Command.GET_CARD; |
4298276a | 246 | } |
a046fa49 | 247 | |
4298276a NR |
248 | System.err.println("remote: " + (tsServer / 1000) % 1000 + " (" |
249 | + tsServer + ")"); | |
250 | System.err.println("previous: " + (tsOriginal / 1000) % 1000 + " (" | |
251 | + tsOriginal + ")"); | |
252 | System.err.println("local changes: " + localChanges); | |
253 | System.err.println("server changes: " + serverChanges); | |
254 | System.err.println("choosen action: " + action); | |
255 | ||
256 | if (action != null) { | |
845fb1d7 | 257 | s.sendCommand(Command.SELECT, name); |
4298276a NR |
258 | if (tsServer != StringUtils.toTime(s.receiveLine())) { |
259 | System.err.println("DEBUG: it changed. retry."); | |
845fb1d7 | 260 | s.sendCommand(Command.SELECT); |
4298276a | 261 | s.close(); |
5ad0e17e | 262 | return sync(force, callback); |
0b6140e4 | 263 | } |
4298276a NR |
264 | |
265 | switch (action) { | |
02b341aa | 266 | case GET_CARD: { |
845fb1d7 | 267 | s.sendCommand(Command.GET_CARD); |
4298276a NR |
268 | List<String> data = s.receiveBlock(); |
269 | setLastModified(data.remove(0)); | |
5ad0e17e | 270 | local.replaceListContent(Vcard21Parser.parseContact(data)); |
4298276a | 271 | |
845fb1d7 NR |
272 | if (local.isDirty()) |
273 | local.save(); | |
274 | local.saveAs(getCache(cacheDirOrig), Format.VCard21); | |
4298276a | 275 | break; |
02b341aa NR |
276 | } |
277 | case POST_CARD: { | |
845fb1d7 NR |
278 | s.sendCommand(Command.POST_CARD); |
279 | s.sendBlock(Vcard21Parser.toStrings(local)); | |
280 | local.saveAs(getCache(cacheDirOrig), Format.VCard21); | |
4298276a NR |
281 | setLastModified(s.receiveLine()); |
282 | break; | |
02b341aa | 283 | } |
845fb1d7 | 284 | case PUT_CARD: { |
02b341aa NR |
285 | String serverLastModifTime = updateToServer(s, original, |
286 | local); | |
4298276a | 287 | |
845fb1d7 | 288 | local.saveAs(getCache(cacheDirOrig), Format.VCard21); |
845fb1d7 | 289 | |
02b341aa | 290 | setLastModified(serverLastModifTime); |
4298276a | 291 | break; |
845fb1d7 NR |
292 | } |
293 | case HASH_CONTACT: { | |
02b341aa | 294 | String serverLastModifTime = updateFromServer(s, local); |
845fb1d7 NR |
295 | |
296 | local.save(); | |
297 | local.saveAs(getCache(cacheDirOrig), Format.VCard21); | |
02b341aa NR |
298 | |
299 | setLastModified(serverLastModifTime); | |
300 | break; | |
301 | } | |
302 | case HELP: { | |
02b341aa NR |
303 | // note: we are holding the server here, so it could throw |
304 | // us away if we take too long | |
305 | ||
5ad0e17e | 306 | // TODO: check if those files are deleted |
02b341aa NR |
307 | File mergeF = File.createTempFile("contact-merge", ".vcf"); |
308 | File serverF = File | |
309 | .createTempFile("contact-server", ".vcf"); | |
310 | original.saveAs(serverF, Format.VCard21); | |
311 | ||
312 | Card server = new Card(serverF, Format.VCard21); | |
313 | updateFromServer(s, server); | |
314 | ||
5ad0e17e NR |
315 | // Do an auto sync |
316 | server.saveAs(mergeF, Format.VCard21); | |
02b341aa | 317 | Card merge = new Card(mergeF, Format.VCard21); |
5ad0e17e NR |
318 | List<Contact> added = new LinkedList<Contact>(); |
319 | List<Contact> removed = new LinkedList<Contact>(); | |
320 | original.compare(local, added, removed, removed, added); | |
321 | for (Contact c : removed) | |
322 | merge.getById(c.getId()).delete(); | |
323 | for (Contact c : added) | |
324 | merge.add(Vcard21Parser.clone(c)); | |
325 | ||
326 | merge.save(); | |
327 | ||
328 | // defer to client: | |
329 | if (callback == null) { | |
330 | throw new IOException( | |
331 | "Conflicting changes detected and merge operation not allowed"); | |
332 | } | |
333 | ||
334 | merge = callback.merge(original, local, server, merge); | |
335 | if (merge == null) { | |
336 | throw new IOException( | |
337 | "Conflicting changes detected and merge operation cancelled"); | |
338 | } | |
339 | ||
340 | // TODO: something like: | |
341 | // String serverLastModifTime = updateToServer(s, original, | |
342 | // merge); | |
343 | // ...but without starting with original since it is not | |
344 | // true here | |
345 | s.sendCommand(Command.POST_CARD); | |
346 | s.sendBlock(Vcard21Parser.toStrings(merge)); | |
347 | String serverLastModifTime = s.receiveLine(); | |
348 | // | |
02b341aa NR |
349 | |
350 | merge.saveAs(getCache(cacheDir), Format.VCard21); | |
351 | merge.saveAs(getCache(cacheDirOrig), Format.VCard21); | |
352 | ||
353 | setLastModified(serverLastModifTime); | |
354 | ||
355 | local = merge; | |
356 | ||
845fb1d7 NR |
357 | break; |
358 | } | |
5ad0e17e NR |
359 | default: |
360 | // will not happen | |
361 | break; | |
0b6140e4 | 362 | } |
4298276a | 363 | |
845fb1d7 | 364 | s.sendCommand(Command.SELECT); |
a046fa49 | 365 | } |
4298276a | 366 | } catch (IOException e) { |
5ad0e17e | 367 | return new CardResult(e); |
4298276a | 368 | } catch (Exception e) { |
5ad0e17e | 369 | return new CardResult(new IOException(e)); |
4298276a NR |
370 | } finally { |
371 | s.close(); | |
a046fa49 NR |
372 | } |
373 | ||
5ad0e17e | 374 | return new CardResult(local, true, true, serverChanges); |
a046fa49 NR |
375 | } |
376 | ||
02b341aa NR |
377 | /** |
378 | * Will update the currently selected {@link Card} on the remote server to | |
379 | * be in the same state as <tt>local</tt>, assuming the server is currently | |
380 | * in <tt>original</tt> state. | |
381 | * | |
382 | * @param s | |
383 | * the {@link SimpleSocket} to work on, which <b>MUST</b> be in | |
384 | * SELECT mode | |
385 | * @param original | |
386 | * the original {@link Card} as it was before the client made | |
387 | * changes to it | |
388 | * @param local | |
389 | * the {@link Card} to which state we want the server in | |
390 | * | |
391 | * @return the last modified time from the remote server (which is basically | |
392 | * "now") | |
393 | * | |
394 | * @throws IOException | |
395 | * in case of IO error | |
396 | */ | |
397 | private String updateToServer(SimpleSocket s, Card original, Card local) | |
398 | throws IOException { | |
399 | List<Contact> added = new LinkedList<Contact>(); | |
400 | List<Contact> removed = new LinkedList<Contact>(); | |
401 | List<Contact> from = new LinkedList<Contact>(); | |
402 | List<Contact> to = new LinkedList<Contact>(); | |
403 | original.compare(local, added, removed, from, to); | |
404 | ||
405 | s.sendCommand(Command.PUT_CARD); | |
406 | ||
407 | for (Contact c : removed) { | |
408 | s.sendCommand(Command.DELETE_CONTACT, c.getId()); | |
409 | } | |
410 | for (Contact c : added) { | |
411 | s.sendCommand(Command.POST_CONTACT, c.getId()); | |
412 | s.sendBlock(Vcard21Parser.toStrings(c, -1)); | |
413 | } | |
414 | if (from.size() > 0) { | |
415 | for (int index = 0; index < from.size(); index++) { | |
416 | Contact f = from.get(index); | |
417 | Contact t = to.get(index); | |
418 | ||
419 | List<Data> subadded = new LinkedList<Data>(); | |
420 | List<Data> subremoved = new LinkedList<Data>(); | |
421 | f.compare(t, subadded, subremoved, subremoved, subadded); | |
5ad0e17e | 422 | s.sendCommand(Command.PUT_CONTACT, f.getId()); |
02b341aa | 423 | for (Data d : subremoved) { |
5ad0e17e | 424 | s.sendCommand(Command.DELETE_DATA, d.getContentState(true)); |
02b341aa NR |
425 | } |
426 | for (Data d : subadded) { | |
5ad0e17e | 427 | s.sendCommand(Command.POST_DATA, d.getContentState(true)); |
02b341aa NR |
428 | s.sendBlock(Vcard21Parser.toStrings(d)); |
429 | } | |
5ad0e17e | 430 | s.sendCommand(Command.PUT_CONTACT); |
02b341aa NR |
431 | } |
432 | } | |
433 | ||
434 | s.sendCommand(Command.PUT_CARD); | |
435 | ||
436 | return s.receiveLine(); | |
437 | } | |
438 | ||
439 | /** | |
440 | * Will update the given {@link Card} object (not {@link File}) to the | |
441 | * currently selected {@link Card} on the remote server. | |
442 | * | |
443 | * @param s | |
444 | * the {@link SimpleSocket} to work on, which <b>MUST</b> be in | |
445 | * SELECT mode | |
446 | * @param local | |
447 | * the {@link Card} to update | |
448 | * | |
449 | * @return the last modified time from the remote server | |
450 | * | |
451 | * @throws IOException | |
452 | * in case of IO error | |
453 | */ | |
454 | private String updateFromServer(SimpleSocket s, Card local) | |
455 | throws IOException { | |
456 | s.sendCommand(Command.PUT_CARD); | |
457 | ||
458 | s.sendCommand(Command.LIST_CONTACT); | |
459 | Map<String, String> remote = new HashMap<String, String>(); | |
460 | for (String line : s.receiveBlock()) { | |
461 | int indexSp = line.indexOf(" "); | |
462 | String hash = line.substring(0, indexSp); | |
463 | String uid = line.substring(indexSp + 1); | |
464 | ||
465 | remote.put(uid, hash); | |
466 | } | |
467 | ||
468 | List<Contact> deleted = new LinkedList<Contact>(); | |
469 | List<Contact> changed = new LinkedList<Contact>(); | |
470 | List<String> added = new LinkedList<String>(); | |
471 | ||
472 | for (Contact c : local) { | |
473 | String hash = remote.get(c.getId()); | |
474 | if (hash == null) { | |
475 | deleted.add(c); | |
5ad0e17e | 476 | } else if (!hash.equals(c.getContentState(true))) { |
02b341aa NR |
477 | changed.add(c); |
478 | } | |
479 | } | |
480 | ||
481 | for (String uid : remote.keySet()) { | |
482 | if (local.getById(uid) == null) | |
483 | added.add(uid); | |
484 | } | |
485 | ||
486 | // process: | |
487 | ||
488 | for (Contact c : deleted) { | |
489 | c.delete(); | |
490 | } | |
491 | ||
492 | for (String uid : added) { | |
493 | s.sendCommand(Command.GET_CONTACT, uid); | |
494 | for (Contact cc : Vcard21Parser.parseContact(s.receiveBlock())) { | |
495 | local.add(cc); | |
496 | } | |
497 | } | |
498 | ||
499 | for (Contact c : changed) { | |
500 | c.delete(); | |
501 | s.sendCommand(Command.GET_CONTACT, c.getId()); | |
502 | for (Contact cc : Vcard21Parser.parseContact(s.receiveBlock())) { | |
503 | local.add(cc); | |
504 | } | |
505 | } | |
506 | ||
507 | s.sendCommand(Command.PUT_CARD); | |
508 | ||
509 | return s.receiveLine(); | |
510 | } | |
511 | ||
a046fa49 NR |
512 | /** |
513 | * Return the requested cache for the current resource. | |
514 | * | |
515 | * @param dir | |
516 | * the cache to use | |
517 | * | |
518 | * @return the cached {@link File} | |
519 | */ | |
520 | private File getCache(File dir) { | |
521 | return new File(dir.getPath() + File.separator + name); | |
522 | } | |
523 | ||
524 | /** | |
525 | * Return the cached {@link File} corresponding to the current resource. | |
526 | * | |
527 | * @return the cached {@link File} | |
528 | */ | |
529 | public File getCache() { | |
530 | return new File(cacheDir.getPath() + File.separator + name); | |
531 | } | |
532 | ||
533 | /** | |
534 | * Get the last modified date of the current resource's original cached | |
535 | * file, that is, the time the server reported as the "last modified time" | |
536 | * when this resource was transfered. | |
537 | * | |
538 | * @return the last modified time from the server back when this resource | |
539 | * was transfered | |
540 | */ | |
541 | public long getLastModified() { | |
542 | try { | |
543 | BufferedReader in = new BufferedReader(new InputStreamReader( | |
544 | new FileInputStream(cacheDirOrigTS.getPath() | |
545 | + File.separator + name))); | |
546 | String line = in.readLine(); | |
547 | in.close(); | |
548 | ||
549 | return StringUtils.toTime(line); | |
550 | } catch (FileNotFoundException e) { | |
551 | return -1; | |
cf77cb35 | 552 | } catch (Exception e) { |
a046fa49 NR |
553 | return -1; |
554 | } | |
555 | } | |
556 | ||
557 | /** | |
558 | * Set the last modified date of the current resource's original cached | |
559 | * file, that is, the time the server reported as the "last modified time" | |
560 | * when this resource was transfered. | |
561 | * | |
562 | * @param time | |
563 | * the last modified time from the server back when this resource | |
564 | * was transfered | |
565 | */ | |
566 | public void setLastModified(String time) { | |
567 | try { | |
568 | BufferedWriter out = new BufferedWriter(new OutputStreamWriter( | |
569 | new FileOutputStream(cacheDirOrigTS.getPath() | |
570 | + File.separator + name))); | |
571 | out.append(time); | |
572 | out.newLine(); | |
573 | out.close(); | |
574 | } catch (FileNotFoundException e) { | |
575 | e.printStackTrace(); | |
576 | } catch (IOException e) { | |
577 | e.printStackTrace(); | |
578 | } | |
579 | } | |
580 | ||
581 | /** | |
582 | * Configure the synchronisation mechanism (cache, auto update...). | |
583 | * | |
584 | * @throws InvalidParameterException | |
585 | * if the remote configuration file <tt>remote.properties</tt> | |
586 | * cannot be accessed or if the cache directory cannot be used | |
587 | */ | |
588 | static private void config() { | |
589 | String dir = null; | |
e119a1c1 | 590 | RemoteBundle bundle = new RemoteBundle(); |
a046fa49 NR |
591 | |
592 | try { | |
e119a1c1 | 593 | dir = bundle.getString(RemotingOption.CLIENT_CACHE_DIR); |
a046fa49 NR |
594 | |
595 | cacheDir = new File(dir + File.separator + "current"); | |
596 | cacheDir.mkdir(); | |
597 | cacheDirOrig = new File(dir + File.separator + "original"); | |
598 | cacheDirOrig.mkdir(); | |
599 | cacheDirOrigTS = new File(dir + File.separator + "timestamps"); | |
600 | cacheDirOrigTS.mkdir(); | |
601 | ||
602 | if (!cacheDir.exists() || !cacheDirOrig.exists()) { | |
603 | throw new IOException("Cannot open or create cache store at: " | |
604 | + dir); | |
605 | } | |
606 | ||
e119a1c1 NR |
607 | autoSync = bundle |
608 | .getBoolean(RemotingOption.CLIENT_AUTO_SYNC, false); | |
a046fa49 NR |
609 | } catch (Exception e) { |
610 | throw new InvalidParameterException( | |
611 | "Cannot open or create cache store at: " + dir); | |
612 | } | |
613 | } | |
614 | } |