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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; |
59597d59 | 27 | import be.nikiroo.jvcard.remote.SimpleSocket.BlockAppendable; |
7da41ecd | 28 | import be.nikiroo.jvcard.resources.StringUtils; |
e119a1c1 NR |
29 | import be.nikiroo.jvcard.resources.bundles.RemoteBundle; |
30 | import be.nikiroo.jvcard.resources.enums.RemotingOption; | |
a046fa49 NR |
31 | |
32 | /** | |
33 | * This class will synchronise {@link Card}s between a local instance an a | |
34 | * remote jVCard server. | |
35 | * | |
36 | * @author niki | |
37 | * | |
38 | */ | |
39 | public class Sync { | |
40 | /** The time in ms after which we declare that 2 timestamps are different */ | |
02b341aa | 41 | static private final int GRACE_TIME = 2001; |
a046fa49 NR |
42 | |
43 | /** Directory where to store local cache of remote {@link Card}s. */ | |
44 | static private File cacheDir; | |
45 | ||
46 | /** | |
47 | * Directory where to store cache of remote {@link Card}s without | |
48 | * modifications since the last synchronisation. | |
49 | */ | |
50 | static private File cacheDirOrig; | |
51 | /** Directory where to store timestamps for files in cacheDirOrig */ | |
52 | static private File cacheDirOrigTS; | |
53 | ||
54 | static private boolean autoSync; | |
55 | private String host; | |
56 | private int port; | |
57 | ||
58 | /** Resource name on the remote server. */ | |
59 | private String name; | |
60 | ||
61 | /** | |
62 | * Create a new {@link Sync} object, ready to operate for the given resource | |
63 | * on the given server. | |
64 | * | |
65 | * <p> | |
66 | * Note that the format used is the standard "host:port_number/file", with | |
67 | * an optional <tt>jvcard://</tt> prefix. | |
68 | * </p> | |
69 | * | |
70 | * <p> | |
71 | * E.g.: <tt>jvcard://localhost:4444/family.vcf</tt> | |
72 | * </p> | |
73 | * | |
74 | * @param url | |
75 | * the server and port to contact, optionally prefixed with | |
76 | * <tt>jvcard://</tt> | |
77 | * | |
78 | * @throws InvalidParameterException | |
79 | * if the remote configuration file <tt>remote.properties</tt> | |
80 | * cannot be accessed or if the cache directory cannot be used | |
81 | */ | |
82 | public Sync(String url) { | |
83 | if (cacheDir == null) { | |
84 | config(); | |
85 | } | |
86 | ||
87 | try { | |
88 | url = url.replace("jvcard://", ""); | |
89 | int indexSl = url.indexOf('/'); | |
90 | this.name = url.substring(indexSl + 1); | |
91 | url = url.substring(0, indexSl); | |
92 | this.host = url.split("\\:")[0]; | |
93 | this.port = Integer.parseInt(url.split("\\:")[1]); | |
94 | } catch (Exception e) { | |
95 | throw new InvalidParameterException( | |
96 | "the given parameter was not a valid HOST:PORT value: " | |
97 | + url); | |
98 | } | |
99 | } | |
100 | ||
101 | /** | |
102 | * Create a new {@link Sync} object, ready to operate on the given server. | |
103 | * | |
104 | * | |
105 | * @param host | |
106 | * the server to contact | |
107 | * @param port | |
108 | * the port to use | |
109 | * @param name | |
110 | * the resource name to synchronise to | |
111 | */ | |
112 | public Sync(String host, int port, String name) { | |
113 | this.host = host; | |
114 | this.port = port; | |
115 | this.name = name; | |
116 | } | |
117 | ||
118 | /** | |
02b341aa | 119 | * Check if the remote server already know about this resource. |
a046fa49 NR |
120 | * |
121 | * @return TRUE if it is possible to contact the remote server and that this | |
122 | * server has the resource available | |
123 | */ | |
124 | public boolean isAvailable() { | |
125 | try { | |
126 | SimpleSocket s = new SimpleSocket(new Socket(host, port), | |
127 | "check avail client"); | |
128 | s.open(true); | |
845fb1d7 | 129 | s.sendCommand(Command.LIST_CARD); |
a046fa49 NR |
130 | List<String> timestampedFiles = s.receiveBlock(); |
131 | s.close(); | |
132 | ||
133 | for (String timestampedFile : timestampedFiles) { | |
134 | String file = timestampedFile.substring(StringUtils.fromTime(0) | |
135 | .length() + 1); | |
136 | if (file.equals(name)) { | |
137 | return true; | |
138 | } | |
139 | } | |
140 | } catch (Exception e) { | |
141 | } | |
142 | ||
143 | return false; | |
144 | } | |
145 | ||
02b341aa NR |
146 | /** |
147 | * Synchronise the current resource if needed, then return the locally | |
148 | * cached version of said resource. | |
149 | * | |
150 | * <p> | |
151 | * A synchronisation is deemed necessary if one of the following is true: | |
152 | * <ul> | |
153 | * <li><tt>force</tt> is TRUE</li> | |
154 | * <li><tt>CLIENT_AUTO_SYNC</tt> is TRUE in the configuration file</li> | |
155 | * <li>the {@link Card} exists locally but not on the remote server</li> | |
156 | * <li>the {@link Card} exists on the remote server but not locally</li> | |
157 | * </ul> | |
158 | * </p> | |
159 | * | |
160 | * @param force | |
161 | * force the synchronisation to occur | |
5ad0e17e NR |
162 | * @param callback |
163 | * the {@link MergeCallback} to call in case of conflict | |
02b341aa NR |
164 | * |
165 | * @return the synchronised (or not) {@link Card} | |
166 | * | |
167 | * @throws UnknownHostException | |
168 | * in case of server name resolution failure | |
169 | * @throws IOException | |
170 | * in case of IO error | |
171 | */ | |
5ad0e17e NR |
172 | public CardResult sync(boolean force, MergeCallback callback) |
173 | throws UnknownHostException, IOException { | |
a046fa49 NR |
174 | long tsOriginal = getLastModified(); |
175 | ||
845fb1d7 | 176 | Card local = new Card(getCache(cacheDir), Format.VCard21); |
845fb1d7 | 177 | |
a046fa49 NR |
178 | // do NOT update unless we are in autoSync or forced mode or we don't |
179 | // have the file on cache | |
180 | if (!autoSync && !force && tsOriginal != -1) { | |
5ad0e17e | 181 | return new CardResult(local, true, false, false); |
a046fa49 NR |
182 | } |
183 | ||
184 | SimpleSocket s = new SimpleSocket(new Socket(host, port), "sync client"); | |
185 | ||
186 | // get the server time stamp | |
187 | long tsServer = -1; | |
5ad0e17e | 188 | boolean serverChanges = false; |
a046fa49 NR |
189 | try { |
190 | s.open(true); | |
845fb1d7 | 191 | s.sendCommand(Command.LIST_CARD); |
a046fa49 NR |
192 | List<String> timestampedFiles = s.receiveBlock(); |
193 | ||
194 | for (String timestampedFile : timestampedFiles) { | |
195 | String file = timestampedFile.substring(StringUtils.fromTime(0) | |
196 | .length() + 1); | |
197 | if (file.equals(name)) { | |
198 | tsServer = StringUtils.toTime(timestampedFile.substring(0, | |
199 | StringUtils.fromTime(0).length())); | |
200 | break; | |
201 | } | |
202 | } | |
a046fa49 | 203 | |
4298276a | 204 | // Error cases: |
02b341aa | 205 | // - file not present neither in cache nor on server |
4298276a NR |
206 | // - remote < previous |
207 | if ((tsServer == -1 && tsOriginal == -1) | |
208 | || (tsServer != -1 && tsOriginal != -1 && ((tsOriginal - tsServer) > GRACE_TIME))) { | |
209 | throw new IOException( | |
210 | "The timestamps between server and client are invalid"); | |
211 | } | |
a046fa49 | 212 | |
4298276a | 213 | // Check changes |
5ad0e17e | 214 | serverChanges = (tsServer - tsOriginal) > GRACE_TIME; |
4298276a | 215 | boolean localChanges = false; |
4298276a NR |
216 | Card original = null; |
217 | if (tsOriginal != -1) { | |
4298276a NR |
218 | original = new Card(getCache(cacheDirOrig), Format.VCard21); |
219 | localChanges = !local.isEquals(original, true); | |
220 | } | |
a046fa49 | 221 | |
845fb1d7 | 222 | Command action = null; |
a046fa49 | 223 | |
4298276a NR |
224 | // Sync to server if: |
225 | if (localChanges) { | |
845fb1d7 | 226 | action = Command.PUT_CARD; |
4298276a | 227 | } |
a046fa49 | 228 | |
4298276a NR |
229 | // Sync from server if: |
230 | if (serverChanges) { | |
845fb1d7 | 231 | action = Command.HASH_CONTACT; |
4298276a | 232 | } |
0b6140e4 | 233 | |
4298276a NR |
234 | // Sync from/to server if |
235 | if (serverChanges && localChanges) { | |
845fb1d7 | 236 | action = Command.HELP; |
4298276a | 237 | } |
a046fa49 | 238 | |
02b341aa | 239 | // POST the whole file if: |
4298276a | 240 | if (tsServer == -1) { |
845fb1d7 | 241 | action = Command.POST_CARD; |
4298276a | 242 | } |
a046fa49 | 243 | |
4298276a NR |
244 | // GET the whole file if: |
245 | if (tsOriginal == -1) { | |
845fb1d7 | 246 | action = Command.GET_CARD; |
4298276a | 247 | } |
a046fa49 | 248 | |
4298276a NR |
249 | System.err.println("remote: " + (tsServer / 1000) % 1000 + " (" |
250 | + tsServer + ")"); | |
251 | System.err.println("previous: " + (tsOriginal / 1000) % 1000 + " (" | |
252 | + tsOriginal + ")"); | |
253 | System.err.println("local changes: " + localChanges); | |
254 | System.err.println("server changes: " + serverChanges); | |
255 | System.err.println("choosen action: " + action); | |
256 | ||
257 | if (action != null) { | |
845fb1d7 | 258 | s.sendCommand(Command.SELECT, name); |
4298276a NR |
259 | if (tsServer != StringUtils.toTime(s.receiveLine())) { |
260 | System.err.println("DEBUG: it changed. retry."); | |
845fb1d7 | 261 | s.sendCommand(Command.SELECT); |
4298276a | 262 | s.close(); |
5ad0e17e | 263 | return sync(force, callback); |
0b6140e4 | 264 | } |
4298276a NR |
265 | |
266 | switch (action) { | |
02b341aa | 267 | case GET_CARD: { |
845fb1d7 | 268 | s.sendCommand(Command.GET_CARD); |
4298276a NR |
269 | List<String> data = s.receiveBlock(); |
270 | setLastModified(data.remove(0)); | |
5ad0e17e | 271 | local.replaceListContent(Vcard21Parser.parseContact(data)); |
4298276a | 272 | |
845fb1d7 NR |
273 | if (local.isDirty()) |
274 | local.save(); | |
275 | local.saveAs(getCache(cacheDirOrig), Format.VCard21); | |
4298276a | 276 | break; |
02b341aa NR |
277 | } |
278 | case POST_CARD: { | |
845fb1d7 | 279 | s.sendCommand(Command.POST_CARD); |
59597d59 NR |
280 | BlockAppendable app = s.createBlockAppendable(); |
281 | Vcard21Parser.write(app, local); | |
282 | app.close(); | |
845fb1d7 | 283 | local.saveAs(getCache(cacheDirOrig), Format.VCard21); |
4298276a NR |
284 | setLastModified(s.receiveLine()); |
285 | break; | |
02b341aa | 286 | } |
845fb1d7 | 287 | case PUT_CARD: { |
02b341aa NR |
288 | String serverLastModifTime = updateToServer(s, original, |
289 | local); | |
4298276a | 290 | |
845fb1d7 | 291 | local.saveAs(getCache(cacheDirOrig), Format.VCard21); |
845fb1d7 | 292 | |
02b341aa | 293 | setLastModified(serverLastModifTime); |
4298276a | 294 | break; |
845fb1d7 NR |
295 | } |
296 | case HASH_CONTACT: { | |
02b341aa | 297 | String serverLastModifTime = updateFromServer(s, local); |
845fb1d7 NR |
298 | |
299 | local.save(); | |
300 | local.saveAs(getCache(cacheDirOrig), Format.VCard21); | |
02b341aa NR |
301 | |
302 | setLastModified(serverLastModifTime); | |
303 | break; | |
304 | } | |
305 | case HELP: { | |
02b341aa NR |
306 | // note: we are holding the server here, so it could throw |
307 | // us away if we take too long | |
308 | ||
5ad0e17e | 309 | // TODO: check if those files are deleted |
02b341aa NR |
310 | File mergeF = File.createTempFile("contact-merge", ".vcf"); |
311 | File serverF = File | |
312 | .createTempFile("contact-server", ".vcf"); | |
313 | original.saveAs(serverF, Format.VCard21); | |
314 | ||
315 | Card server = new Card(serverF, Format.VCard21); | |
316 | updateFromServer(s, server); | |
317 | ||
5ad0e17e NR |
318 | // Do an auto sync |
319 | server.saveAs(mergeF, Format.VCard21); | |
02b341aa | 320 | Card merge = new Card(mergeF, Format.VCard21); |
5ad0e17e NR |
321 | List<Contact> added = new LinkedList<Contact>(); |
322 | List<Contact> removed = new LinkedList<Contact>(); | |
323 | original.compare(local, added, removed, removed, added); | |
324 | for (Contact c : removed) | |
325 | merge.getById(c.getId()).delete(); | |
326 | for (Contact c : added) | |
327 | merge.add(Vcard21Parser.clone(c)); | |
328 | ||
329 | merge.save(); | |
330 | ||
331 | // defer to client: | |
332 | if (callback == null) { | |
333 | throw new IOException( | |
334 | "Conflicting changes detected and merge operation not allowed"); | |
335 | } | |
336 | ||
337 | merge = callback.merge(original, local, server, merge); | |
338 | if (merge == null) { | |
339 | throw new IOException( | |
340 | "Conflicting changes detected and merge operation cancelled"); | |
341 | } | |
342 | ||
343 | // TODO: something like: | |
344 | // String serverLastModifTime = updateToServer(s, original, | |
345 | // merge); | |
346 | // ...but without starting with original since it is not | |
347 | // true here | |
348 | s.sendCommand(Command.POST_CARD); | |
59597d59 NR |
349 | BlockAppendable app = s.createBlockAppendable(); |
350 | Vcard21Parser.write(app, merge); | |
351 | app.close(); | |
5ad0e17e NR |
352 | String serverLastModifTime = s.receiveLine(); |
353 | // | |
02b341aa NR |
354 | |
355 | merge.saveAs(getCache(cacheDir), Format.VCard21); | |
356 | merge.saveAs(getCache(cacheDirOrig), Format.VCard21); | |
357 | ||
358 | setLastModified(serverLastModifTime); | |
359 | ||
360 | local = merge; | |
361 | ||
845fb1d7 NR |
362 | break; |
363 | } | |
5ad0e17e NR |
364 | default: |
365 | // will not happen | |
366 | break; | |
0b6140e4 | 367 | } |
4298276a | 368 | |
845fb1d7 | 369 | s.sendCommand(Command.SELECT); |
a046fa49 | 370 | } |
4298276a | 371 | } catch (IOException e) { |
5ad0e17e | 372 | return new CardResult(e); |
4298276a | 373 | } catch (Exception e) { |
5ad0e17e | 374 | return new CardResult(new IOException(e)); |
4298276a NR |
375 | } finally { |
376 | s.close(); | |
a046fa49 NR |
377 | } |
378 | ||
5ad0e17e | 379 | return new CardResult(local, true, true, serverChanges); |
a046fa49 NR |
380 | } |
381 | ||
02b341aa NR |
382 | /** |
383 | * Will update the currently selected {@link Card} on the remote server to | |
384 | * be in the same state as <tt>local</tt>, assuming the server is currently | |
385 | * in <tt>original</tt> state. | |
386 | * | |
387 | * @param s | |
388 | * the {@link SimpleSocket} to work on, which <b>MUST</b> be in | |
389 | * SELECT mode | |
390 | * @param original | |
391 | * the original {@link Card} as it was before the client made | |
392 | * changes to it | |
393 | * @param local | |
394 | * the {@link Card} to which state we want the server in | |
395 | * | |
396 | * @return the last modified time from the remote server (which is basically | |
397 | * "now") | |
398 | * | |
399 | * @throws IOException | |
400 | * in case of IO error | |
401 | */ | |
402 | private String updateToServer(SimpleSocket s, Card original, Card local) | |
403 | throws IOException { | |
404 | List<Contact> added = new LinkedList<Contact>(); | |
405 | List<Contact> removed = new LinkedList<Contact>(); | |
406 | List<Contact> from = new LinkedList<Contact>(); | |
407 | List<Contact> to = new LinkedList<Contact>(); | |
408 | original.compare(local, added, removed, from, to); | |
409 | ||
410 | s.sendCommand(Command.PUT_CARD); | |
411 | ||
412 | for (Contact c : removed) { | |
413 | s.sendCommand(Command.DELETE_CONTACT, c.getId()); | |
414 | } | |
415 | for (Contact c : added) { | |
416 | s.sendCommand(Command.POST_CONTACT, c.getId()); | |
59597d59 NR |
417 | BlockAppendable app = s.createBlockAppendable(); |
418 | Vcard21Parser.write(app, c, -1); | |
419 | s.close(); | |
02b341aa NR |
420 | } |
421 | if (from.size() > 0) { | |
422 | for (int index = 0; index < from.size(); index++) { | |
423 | Contact f = from.get(index); | |
424 | Contact t = to.get(index); | |
425 | ||
426 | List<Data> subadded = new LinkedList<Data>(); | |
427 | List<Data> subremoved = new LinkedList<Data>(); | |
428 | f.compare(t, subadded, subremoved, subremoved, subadded); | |
5ad0e17e | 429 | s.sendCommand(Command.PUT_CONTACT, f.getId()); |
02b341aa | 430 | for (Data d : subremoved) { |
5ad0e17e | 431 | s.sendCommand(Command.DELETE_DATA, d.getContentState(true)); |
02b341aa NR |
432 | } |
433 | for (Data d : subadded) { | |
5ad0e17e | 434 | s.sendCommand(Command.POST_DATA, d.getContentState(true)); |
59597d59 NR |
435 | BlockAppendable app = s.createBlockAppendable(); |
436 | Vcard21Parser.write(app, d); | |
437 | app.close(); | |
02b341aa | 438 | } |
5ad0e17e | 439 | s.sendCommand(Command.PUT_CONTACT); |
02b341aa NR |
440 | } |
441 | } | |
442 | ||
443 | s.sendCommand(Command.PUT_CARD); | |
444 | ||
445 | return s.receiveLine(); | |
446 | } | |
447 | ||
448 | /** | |
449 | * Will update the given {@link Card} object (not {@link File}) to the | |
450 | * currently selected {@link Card} on the remote server. | |
451 | * | |
452 | * @param s | |
453 | * the {@link SimpleSocket} to work on, which <b>MUST</b> be in | |
454 | * SELECT mode | |
455 | * @param local | |
456 | * the {@link Card} to update | |
457 | * | |
458 | * @return the last modified time from the remote server | |
459 | * | |
460 | * @throws IOException | |
461 | * in case of IO error | |
462 | */ | |
463 | private String updateFromServer(SimpleSocket s, Card local) | |
464 | throws IOException { | |
465 | s.sendCommand(Command.PUT_CARD); | |
466 | ||
467 | s.sendCommand(Command.LIST_CONTACT); | |
468 | Map<String, String> remote = new HashMap<String, String>(); | |
469 | for (String line : s.receiveBlock()) { | |
470 | int indexSp = line.indexOf(" "); | |
471 | String hash = line.substring(0, indexSp); | |
472 | String uid = line.substring(indexSp + 1); | |
473 | ||
474 | remote.put(uid, hash); | |
475 | } | |
476 | ||
477 | List<Contact> deleted = new LinkedList<Contact>(); | |
478 | List<Contact> changed = new LinkedList<Contact>(); | |
479 | List<String> added = new LinkedList<String>(); | |
480 | ||
481 | for (Contact c : local) { | |
482 | String hash = remote.get(c.getId()); | |
483 | if (hash == null) { | |
484 | deleted.add(c); | |
5ad0e17e | 485 | } else if (!hash.equals(c.getContentState(true))) { |
02b341aa NR |
486 | changed.add(c); |
487 | } | |
488 | } | |
489 | ||
490 | for (String uid : remote.keySet()) { | |
491 | if (local.getById(uid) == null) | |
492 | added.add(uid); | |
493 | } | |
494 | ||
495 | // process: | |
496 | ||
497 | for (Contact c : deleted) { | |
498 | c.delete(); | |
499 | } | |
500 | ||
501 | for (String uid : added) { | |
502 | s.sendCommand(Command.GET_CONTACT, uid); | |
503 | for (Contact cc : Vcard21Parser.parseContact(s.receiveBlock())) { | |
504 | local.add(cc); | |
505 | } | |
506 | } | |
507 | ||
508 | for (Contact c : changed) { | |
509 | c.delete(); | |
510 | s.sendCommand(Command.GET_CONTACT, c.getId()); | |
511 | for (Contact cc : Vcard21Parser.parseContact(s.receiveBlock())) { | |
512 | local.add(cc); | |
513 | } | |
514 | } | |
515 | ||
516 | s.sendCommand(Command.PUT_CARD); | |
517 | ||
518 | return s.receiveLine(); | |
519 | } | |
520 | ||
a046fa49 NR |
521 | /** |
522 | * Return the requested cache for the current resource. | |
523 | * | |
524 | * @param dir | |
525 | * the cache to use | |
526 | * | |
527 | * @return the cached {@link File} | |
528 | */ | |
529 | private File getCache(File dir) { | |
530 | return new File(dir.getPath() + File.separator + name); | |
531 | } | |
532 | ||
533 | /** | |
534 | * Return the cached {@link File} corresponding to the current resource. | |
535 | * | |
536 | * @return the cached {@link File} | |
537 | */ | |
538 | public File getCache() { | |
539 | return new File(cacheDir.getPath() + File.separator + name); | |
540 | } | |
541 | ||
542 | /** | |
543 | * Get the last modified date of the current resource's original cached | |
544 | * file, that is, the time the server reported as the "last modified time" | |
545 | * when this resource was transfered. | |
546 | * | |
547 | * @return the last modified time from the server back when this resource | |
548 | * was transfered | |
549 | */ | |
550 | public long getLastModified() { | |
551 | try { | |
552 | BufferedReader in = new BufferedReader(new InputStreamReader( | |
553 | new FileInputStream(cacheDirOrigTS.getPath() | |
554 | + File.separator + name))); | |
555 | String line = in.readLine(); | |
556 | in.close(); | |
557 | ||
558 | return StringUtils.toTime(line); | |
559 | } catch (FileNotFoundException e) { | |
560 | return -1; | |
cf77cb35 | 561 | } catch (Exception e) { |
a046fa49 NR |
562 | return -1; |
563 | } | |
564 | } | |
565 | ||
566 | /** | |
567 | * Set the last modified date of the current resource's original cached | |
568 | * file, that is, the time the server reported as the "last modified time" | |
569 | * when this resource was transfered. | |
570 | * | |
571 | * @param time | |
572 | * the last modified time from the server back when this resource | |
573 | * was transfered | |
574 | */ | |
575 | public void setLastModified(String time) { | |
576 | try { | |
577 | BufferedWriter out = new BufferedWriter(new OutputStreamWriter( | |
578 | new FileOutputStream(cacheDirOrigTS.getPath() | |
579 | + File.separator + name))); | |
580 | out.append(time); | |
581 | out.newLine(); | |
582 | out.close(); | |
583 | } catch (FileNotFoundException e) { | |
584 | e.printStackTrace(); | |
585 | } catch (IOException e) { | |
586 | e.printStackTrace(); | |
587 | } | |
588 | } | |
589 | ||
590 | /** | |
591 | * Configure the synchronisation mechanism (cache, auto update...). | |
592 | * | |
593 | * @throws InvalidParameterException | |
594 | * if the remote configuration file <tt>remote.properties</tt> | |
595 | * cannot be accessed or if the cache directory cannot be used | |
596 | */ | |
597 | static private void config() { | |
598 | String dir = null; | |
e119a1c1 | 599 | RemoteBundle bundle = new RemoteBundle(); |
a046fa49 NR |
600 | |
601 | try { | |
e119a1c1 | 602 | dir = bundle.getString(RemotingOption.CLIENT_CACHE_DIR); |
a046fa49 NR |
603 | |
604 | cacheDir = new File(dir + File.separator + "current"); | |
605 | cacheDir.mkdir(); | |
606 | cacheDirOrig = new File(dir + File.separator + "original"); | |
607 | cacheDirOrig.mkdir(); | |
608 | cacheDirOrigTS = new File(dir + File.separator + "timestamps"); | |
609 | cacheDirOrigTS.mkdir(); | |
610 | ||
611 | if (!cacheDir.exists() || !cacheDirOrig.exists()) { | |
612 | throw new IOException("Cannot open or create cache store at: " | |
613 | + dir); | |
614 | } | |
615 | ||
e119a1c1 NR |
616 | autoSync = bundle |
617 | .getBoolean(RemotingOption.CLIENT_AUTO_SYNC, false); | |
a046fa49 NR |
618 | } catch (Exception e) { |
619 | throw new InvalidParameterException( | |
620 | "Cannot open or create cache store at: " + dir); | |
621 | } | |
622 | } | |
623 | } |