001 /**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017 package org.apache.camel.component.file.remote;
018
019 import java.io.ByteArrayOutputStream;
020 import java.io.File;
021 import java.io.FileOutputStream;
022 import java.io.IOException;
023 import java.io.InputStream;
024 import java.io.OutputStream;
025 import java.util.ArrayList;
026 import java.util.Arrays;
027 import java.util.Iterator;
028 import java.util.List;
029
030 import org.apache.camel.Exchange;
031 import org.apache.camel.InvalidPayloadException;
032 import org.apache.camel.component.file.FileComponent;
033 import org.apache.camel.component.file.GenericFile;
034 import org.apache.camel.component.file.GenericFileEndpoint;
035 import org.apache.camel.component.file.GenericFileExist;
036 import org.apache.camel.component.file.GenericFileOperationFailedException;
037 import org.apache.camel.util.FileUtil;
038 import org.apache.camel.util.IOHelper;
039 import org.apache.camel.util.ObjectHelper;
040 import org.apache.commons.net.ftp.FTPClient;
041 import org.apache.commons.net.ftp.FTPClientConfig;
042 import org.apache.commons.net.ftp.FTPFile;
043 import org.apache.commons.net.ftp.FTPReply;
044 import org.slf4j.Logger;
045 import org.slf4j.LoggerFactory;
046
047 /**
048 * FTP remote file operations
049 */
050 public class FtpOperations implements RemoteFileOperations<FTPFile> {
051
052 protected final transient Logger log = LoggerFactory.getLogger(getClass());
053 protected final FTPClient client;
054 protected final FTPClientConfig clientConfig;
055 protected RemoteFileEndpoint<FTPFile> endpoint;
056
057 public FtpOperations(FTPClient client, FTPClientConfig clientConfig) {
058 this.client = client;
059 this.clientConfig = clientConfig;
060 }
061
062 public void setEndpoint(GenericFileEndpoint<FTPFile> endpoint) {
063 this.endpoint = (RemoteFileEndpoint<FTPFile>) endpoint;
064 }
065
066 public boolean connect(RemoteFileConfiguration configuration) throws GenericFileOperationFailedException {
067 if (log.isTraceEnabled()) {
068 log.trace("Connecting using FTPClient: " + client);
069 }
070
071 String host = configuration.getHost();
072 int port = configuration.getPort();
073 String username = configuration.getUsername();
074
075 if (clientConfig != null) {
076 log.trace("Configuring FTPClient with config: " + clientConfig);
077 client.configure(clientConfig);
078 }
079
080 if (log.isTraceEnabled()) {
081 log.trace("Connecting to " + configuration.remoteServerInformation() + " using connection timeout: " + client.getConnectTimeout());
082 }
083
084 boolean connected = false;
085 int attempt = 0;
086
087 while (!connected) {
088 try {
089 if (log.isTraceEnabled() && attempt > 0) {
090 log.trace("Reconnect attempt #" + attempt + " connecting to + " + configuration.remoteServerInformation());
091 }
092 client.connect(host, port);
093 // must check reply code if we are connected
094 int reply = client.getReplyCode();
095
096 if (FTPReply.isPositiveCompletion(reply)) {
097 // yes we could connect
098 connected = true;
099 } else {
100 // throw an exception to force the retry logic in the catch exception block
101 throw new GenericFileOperationFailedException(client.getReplyCode(), client.getReplyString(), "Server refused connection");
102 }
103 } catch (Exception e) {
104 // check if we are interrupted so we can break out
105 if (Thread.currentThread().isInterrupted()) {
106 throw new GenericFileOperationFailedException("Interrupted during connecting", new InterruptedException("Interrupted during connecting"));
107 }
108
109 GenericFileOperationFailedException failed;
110 if (e instanceof GenericFileOperationFailedException) {
111 failed = (GenericFileOperationFailedException) e;
112 } else {
113 failed = new GenericFileOperationFailedException(client.getReplyCode(), client.getReplyString(), e.getMessage(), e);
114 }
115
116 if (log.isTraceEnabled()) {
117 log.trace("Cannot connect due: " + failed.getMessage());
118 }
119 attempt++;
120 if (attempt > endpoint.getMaximumReconnectAttempts()) {
121 throw failed;
122 }
123 if (endpoint.getReconnectDelay() > 0) {
124 try {
125 Thread.sleep(endpoint.getReconnectDelay());
126 } catch (InterruptedException ie) {
127 // we could potentially also be interrupted during sleep
128 Thread.currentThread().interrupt();
129 throw new GenericFileOperationFailedException("Interrupted during sleeping", ie);
130 }
131 }
132 }
133 }
134
135 // must enter passive mode directly after connect
136 if (configuration.isPassiveMode()) {
137 log.trace("Using passive mode connections");
138 client.enterLocalPassiveMode();
139 }
140
141 // must set soTimeout after connect
142 if (endpoint instanceof FtpEndpoint) {
143 FtpEndpoint ftpEndpoint = (FtpEndpoint) endpoint;
144 if (ftpEndpoint.getSoTimeout() > 0) {
145 log.trace("Using SoTimeout=" + ftpEndpoint.getSoTimeout());
146 try {
147 client.setSoTimeout(ftpEndpoint.getSoTimeout());
148 } catch (IOException e) {
149 throw new GenericFileOperationFailedException(client.getReplyCode(), client.getReplyString(), e.getMessage(), e);
150 }
151 }
152 }
153
154 try {
155 boolean login;
156 if (username != null) {
157 if (log.isTraceEnabled()) {
158 log.trace("Attempting to login user: " + username + " using password: " + configuration.getPassword());
159 }
160 login = client.login(username, configuration.getPassword());
161 } else {
162 log.trace("Attempting to login anonymous");
163 login = client.login("anonymous", "");
164 }
165 if (log.isTraceEnabled()) {
166 log.trace("User " + (username != null ? username : "anonymous") + " logged in: " + login);
167 }
168 if (!login) {
169 throw new GenericFileOperationFailedException(client.getReplyCode(), client.getReplyString());
170 }
171 client.setFileType(configuration.isBinary() ? FTPClient.BINARY_FILE_TYPE : FTPClient.ASCII_FILE_TYPE);
172 } catch (IOException e) {
173 throw new GenericFileOperationFailedException(client.getReplyCode(), client.getReplyString(), e.getMessage(), e);
174 }
175
176 // site commands
177 if (endpoint.getConfiguration().getSiteCommand() != null) {
178 // commands can be separated using new line
179 Iterator it = ObjectHelper.createIterator(endpoint.getConfiguration().getSiteCommand(), "\n");
180 while (it.hasNext()) {
181 Object next = it.next();
182 String command = endpoint.getCamelContext().getTypeConverter().convertTo(String.class, next);
183 if (log.isTraceEnabled()) {
184 log.trace("Site command to send: " + command);
185 }
186 if (command != null) {
187 boolean result = sendSiteCommand(command);
188 if (!result) {
189 throw new GenericFileOperationFailedException("Site command: " + command + " returned false");
190 }
191 }
192 }
193 }
194
195 return true;
196 }
197
198 public boolean isConnected() throws GenericFileOperationFailedException {
199 return client.isConnected();
200 }
201
202 public void disconnect() throws GenericFileOperationFailedException {
203 // logout before disconnecting
204 try {
205 client.logout();
206 } catch (IOException e) {
207 throw new GenericFileOperationFailedException(client.getReplyCode(), client.getReplyString(), e.getMessage(), e);
208 } finally {
209 try {
210 client.disconnect();
211 } catch (IOException e) {
212 throw new GenericFileOperationFailedException(client.getReplyCode(), client.getReplyString(), e.getMessage(), e);
213 }
214 }
215 }
216
217 public boolean deleteFile(String name) throws GenericFileOperationFailedException {
218 if (log.isDebugEnabled()) {
219 log.debug("Deleting file: " + name);
220 }
221 try {
222 return this.client.deleteFile(name);
223 } catch (IOException e) {
224 throw new GenericFileOperationFailedException(client.getReplyCode(), client.getReplyString(), e.getMessage(), e);
225 }
226 }
227
228 public boolean renameFile(String from, String to) throws GenericFileOperationFailedException {
229 if (log.isDebugEnabled()) {
230 log.debug("Renaming file: " + from + " to: " + to);
231 }
232 try {
233 return client.rename(from, to);
234 } catch (IOException e) {
235 throw new GenericFileOperationFailedException(client.getReplyCode(), client.getReplyString(), e.getMessage(), e);
236 }
237 }
238
239 public boolean buildDirectory(String directory, boolean absolute) throws GenericFileOperationFailedException {
240 // must normalize directory first
241 directory = endpoint.getConfiguration().normalizePath(directory);
242
243 if (log.isTraceEnabled()) {
244 log.trace("buildDirectory(" + directory + ")");
245 }
246 try {
247 String originalDirectory = client.printWorkingDirectory();
248
249 boolean success;
250 try {
251 // maybe the full directory already exists
252 success = client.changeWorkingDirectory(directory);
253 if (!success) {
254 if (log.isTraceEnabled()) {
255 log.trace("Trying to build remote directory: " + directory);
256 }
257 success = client.makeDirectory(directory);
258 if (!success) {
259 // we are here if the server side doesn't create intermediate folders so create the folder one by one
260 success = buildDirectoryChunks(directory);
261 }
262 }
263
264 return success;
265 } finally {
266 // change back to original directory
267 if (originalDirectory != null) {
268 changeCurrentDirectory(originalDirectory);
269 }
270 }
271 } catch (IOException e) {
272 throw new GenericFileOperationFailedException(client.getReplyCode(), client.getReplyString(), e.getMessage(), e);
273 }
274 }
275
276 public boolean retrieveFile(String name, Exchange exchange) throws GenericFileOperationFailedException {
277 if (log.isTraceEnabled()) {
278 log.trace("retrieveFile(" + name + ")");
279 }
280 if (ObjectHelper.isNotEmpty(endpoint.getLocalWorkDirectory())) {
281 // local work directory is configured so we should store file content as files in this local directory
282 return retrieveFileToFileInLocalWorkDirectory(name, exchange);
283 } else {
284 // store file content directory as stream on the body
285 return retrieveFileToStreamInBody(name, exchange);
286 }
287 }
288
289 @SuppressWarnings("unchecked")
290 private boolean retrieveFileToStreamInBody(String name, Exchange exchange) throws GenericFileOperationFailedException {
291 OutputStream os = null;
292 boolean result;
293 try {
294 os = new ByteArrayOutputStream();
295 GenericFile<FTPFile> target = (GenericFile<FTPFile>) exchange.getProperty(FileComponent.FILE_EXCHANGE_FILE);
296 ObjectHelper.notNull(target, "Exchange should have the " + FileComponent.FILE_EXCHANGE_FILE + " set");
297 target.setBody(os);
298
299 String remoteName = name;
300 String currentDir = null;
301 if (endpoint.getConfiguration().isStepwise()) {
302 // remember current directory
303 currentDir = getCurrentDirectory();
304
305 // change directory to path where the file is to be retrieved
306 // (must do this as some FTP servers cannot retrieve using absolute path)
307 String path = FileUtil.onlyPath(name);
308 if (path != null) {
309 changeCurrentDirectory(path);
310 }
311 // remote name is now only the file name as we just changed directory
312 remoteName = FileUtil.stripPath(name);
313 }
314
315 result = client.retrieveFile(remoteName, os);
316
317 // change back to current directory
318 if (endpoint.getConfiguration().isStepwise()) {
319 changeCurrentDirectory(currentDir);
320 }
321
322 } catch (IOException e) {
323 throw new GenericFileOperationFailedException(client.getReplyCode(), client.getReplyString(), e.getMessage(), e);
324 } finally {
325 IOHelper.close(os, "retrieve: " + name, log);
326 }
327
328 return result;
329 }
330
331 @SuppressWarnings("unchecked")
332 private boolean retrieveFileToFileInLocalWorkDirectory(String name, Exchange exchange) throws GenericFileOperationFailedException {
333 File temp;
334 File local = new File(FileUtil.normalizePath(endpoint.getLocalWorkDirectory()));
335 OutputStream os;
336 try {
337 // use relative filename in local work directory
338 GenericFile<FTPFile> target = (GenericFile<FTPFile>) exchange.getProperty(FileComponent.FILE_EXCHANGE_FILE);
339 ObjectHelper.notNull(target, "Exchange should have the " + FileComponent.FILE_EXCHANGE_FILE + " set");
340 String relativeName = target.getRelativeFilePath();
341
342 temp = new File(local, relativeName + ".inprogress");
343 local = new File(local, relativeName);
344
345 // create directory to local work file
346 local.mkdirs();
347
348 // delete any existing files
349 if (temp.exists()) {
350 if (!FileUtil.deleteFile(temp)) {
351 throw new GenericFileOperationFailedException("Cannot delete existing local work file: " + temp);
352 }
353 }
354 if (local.exists()) {
355 if (!FileUtil.deleteFile(local)) {
356 throw new GenericFileOperationFailedException("Cannot delete existing local work file: " + local);
357 }
358 }
359
360 // create new temp local work file
361 if (!temp.createNewFile()) {
362 throw new GenericFileOperationFailedException("Cannot create new local work file: " + temp);
363 }
364
365 // store content as a file in the local work directory in the temp handle
366 os = new FileOutputStream(temp);
367
368 // set header with the path to the local work file
369 exchange.getIn().setHeader(Exchange.FILE_LOCAL_WORK_PATH, local.getPath());
370
371 } catch (Exception e) {
372 throw new GenericFileOperationFailedException("Cannot create new local work file: " + local);
373 }
374
375 boolean result;
376 try {
377 GenericFile<FTPFile> target = (GenericFile<FTPFile>) exchange.getProperty(FileComponent.FILE_EXCHANGE_FILE);
378 // store the java.io.File handle as the body
379 target.setBody(local);
380
381 String remoteName = name;
382 String currentDir = null;
383 if (endpoint.getConfiguration().isStepwise()) {
384 // remember current directory
385 currentDir = getCurrentDirectory();
386
387 // change directory to path where the file is to be retrieved
388 // (must do this as some FTP servers cannot retrieve using absolute path)
389 String path = FileUtil.onlyPath(name);
390 if (path != null) {
391 changeCurrentDirectory(path);
392 }
393 // remote name is now only the file name as we just changed directory
394 remoteName = FileUtil.stripPath(name);
395 }
396
397 result = client.retrieveFile(remoteName, os);
398
399 // change back to current directory
400 if (endpoint.getConfiguration().isStepwise()) {
401 changeCurrentDirectory(currentDir);
402 }
403
404 } catch (IOException e) {
405 if (log.isTraceEnabled()) {
406 log.trace("Error occurred during retrieving file: " + name + " to local directory. Deleting local work file: " + temp);
407 }
408 // failed to retrieve the file so we need to close streams and delete in progress file
409 // must close stream before deleting file
410 IOHelper.close(os, "retrieve: " + name, log);
411 boolean deleted = FileUtil.deleteFile(temp);
412 if (!deleted) {
413 log.warn("Error occurred during retrieving file: " + name + " to local directory. Cannot delete local work file: " + temp);
414 }
415 throw new GenericFileOperationFailedException(client.getReplyCode(), client.getReplyString(), e.getMessage(), e);
416 } finally {
417 // need to close the stream before rename it
418 IOHelper.close(os, "retrieve: " + name, log);
419 }
420
421 if (log.isDebugEnabled()) {
422 log.debug("Retrieve file to local work file result: " + result);
423 }
424
425 if (result) {
426 if (log.isTraceEnabled()) {
427 log.trace("Renaming local in progress file from: " + temp + " to: " + local);
428 }
429 // operation went okay so rename temp to local after we have retrieved the data
430 if (!FileUtil.renameFile(temp, local)) {
431 throw new GenericFileOperationFailedException("Cannot rename local work file from: " + temp + " to: " + local);
432 }
433 }
434
435 return result;
436 }
437
438 public boolean storeFile(String name, Exchange exchange) throws GenericFileOperationFailedException {
439 // must normalize name first
440 name = endpoint.getConfiguration().normalizePath(name);
441
442 if (log.isTraceEnabled()) {
443 log.trace("storeFile(" + name + ")");
444 }
445
446 boolean answer = false;
447 String currentDir = null;
448 String path = FileUtil.onlyPath(name);
449 String targetName = name;
450
451 try {
452 if (path != null && endpoint.getConfiguration().isStepwise()) {
453 // must remember current dir so we stay in that directory after the write
454 currentDir = getCurrentDirectory();
455
456 // change to path of name
457 changeCurrentDirectory(path);
458
459 // the target name should be without path, as we have changed directory
460 targetName = FileUtil.stripPath(name);
461 }
462
463 // store the file
464 answer = doStoreFile(name, targetName, exchange);
465 } finally {
466 // change back to current directory if we changed directory
467 if (currentDir != null) {
468 changeCurrentDirectory(currentDir);
469 }
470 }
471
472 return answer;
473 }
474
475 private boolean doStoreFile(String name, String targetName, Exchange exchange) throws GenericFileOperationFailedException {
476 if (log.isTraceEnabled()) {
477 log.trace("doStoreFile(" + targetName + ")");
478 }
479
480 // if an existing file already exists what should we do?
481 if (endpoint.getFileExist() == GenericFileExist.Ignore || endpoint.getFileExist() == GenericFileExist.Fail) {
482 boolean existFile = existsFile(targetName);
483 if (existFile && endpoint.getFileExist() == GenericFileExist.Ignore) {
484 // ignore but indicate that the file was written
485 if (log.isTraceEnabled()) {
486 log.trace("An existing file already exists: " + name + ". Ignore and do not override it.");
487 }
488 return true;
489 } else if (existFile && endpoint.getFileExist() == GenericFileExist.Fail) {
490 throw new GenericFileOperationFailedException("File already exist: " + name + ". Cannot write new file.");
491 }
492 }
493
494 InputStream is = null;
495 try {
496 is = exchange.getIn().getMandatoryBody(InputStream.class);
497 if (endpoint.getFileExist() == GenericFileExist.Append) {
498 return client.appendFile(targetName, is);
499 } else {
500 return client.storeFile(targetName, is);
501 }
502 } catch (IOException e) {
503 throw new GenericFileOperationFailedException(client.getReplyCode(), client.getReplyString(), e.getMessage(), e);
504 } catch (InvalidPayloadException e) {
505 throw new GenericFileOperationFailedException("Cannot store file: " + name, e);
506 } finally {
507 IOHelper.close(is, "store: " + name, log);
508 }
509 }
510
511 public boolean existsFile(String name) throws GenericFileOperationFailedException {
512 if (log.isTraceEnabled()) {
513 log.trace("existsFile(" + name + ")");
514 }
515
516 // check whether a file already exists
517 String directory = FileUtil.onlyPath(name);
518 String onlyName = FileUtil.stripPath(name);
519 try {
520 String[] names;
521 if (directory != null) {
522 names = client.listNames(directory);
523 } else {
524 names = client.listNames();
525 }
526 // can return either null or an empty list depending on FTP servers
527 if (names == null) {
528 return false;
529 }
530 for (String existing : names) {
531 if (log.isTraceEnabled()) {
532 log.trace("Existing file: " + existing + ", target file: " + name);
533 }
534 existing = FileUtil.stripPath(existing);
535 if (existing != null && existing.equals(onlyName)) {
536 return true;
537 }
538 }
539 return false;
540 } catch (IOException e) {
541 throw new GenericFileOperationFailedException(client.getReplyCode(), client.getReplyString(), e.getMessage(), e);
542 }
543 }
544
545 public String getCurrentDirectory() throws GenericFileOperationFailedException {
546 if (log.isTraceEnabled()) {
547 log.trace("getCurrentDirectory()");
548 }
549 try {
550 return client.printWorkingDirectory();
551 } catch (IOException e) {
552 throw new GenericFileOperationFailedException(client.getReplyCode(), client.getReplyString(), e.getMessage(), e);
553 }
554 }
555
556 public void changeCurrentDirectory(String path) throws GenericFileOperationFailedException {
557 if (log.isTraceEnabled()) {
558 log.trace("changeCurrentDirectory(" + path + ")");
559 }
560 if (ObjectHelper.isEmpty(path)) {
561 return;
562 }
563
564 // must compact path so FTP server can traverse correctly
565 path = FileUtil.compactPath(path);
566
567 // not stepwise should change directory in one operation
568 if (!endpoint.getConfiguration().isStepwise()) {
569 doChangeDirectory(path);
570 return;
571 }
572
573 // if it starts with the root path then a little special handling for that
574 if (FileUtil.hasLeadingSeparator(path)) {
575 // change to root path
576 doChangeDirectory(path.substring(0, 1));
577 path = path.substring(1);
578 }
579
580 // split into multiple dirs
581 final String[] dirs = path.split("/|\\\\");
582
583 if (dirs == null || dirs.length == 0) {
584 // path was just a relative single path
585 doChangeDirectory(path);
586 return;
587 }
588
589 // there are multiple dirs so do this in chunks
590 for (String dir : dirs) {
591 doChangeDirectory(dir);
592 }
593 }
594
595 private void doChangeDirectory(String path) {
596 if (path == null || ".".equals(path) || ObjectHelper.isEmpty(path)) {
597 return;
598 }
599
600 if (log.isTraceEnabled()) {
601 log.trace("Changing directory: " + path);
602 }
603 boolean success;
604 try {
605 if ("..".equals(path)) {
606 changeToParentDirectory();
607 success = true;
608 } else {
609 success = client.changeWorkingDirectory(path);
610 }
611 } catch (IOException e) {
612 throw new GenericFileOperationFailedException(client.getReplyCode(), client.getReplyString(), e.getMessage(), e);
613 }
614 if (!success) {
615 throw new GenericFileOperationFailedException(client.getReplyCode(), client.getReplyString(), "Cannot change directory to: " + path);
616 }
617 }
618
619 public void changeToParentDirectory() throws GenericFileOperationFailedException {
620 try {
621 client.changeToParentDirectory();
622 } catch (IOException e) {
623 throw new GenericFileOperationFailedException(client.getReplyCode(), client.getReplyString(), e.getMessage(), e);
624 }
625 }
626
627 public List<FTPFile> listFiles() throws GenericFileOperationFailedException {
628 if (log.isTraceEnabled()) {
629 log.trace("listFiles()");
630 }
631 try {
632 final List<FTPFile> list = new ArrayList<FTPFile>();
633 FTPFile[] files = client.listFiles();
634 // can return either null or an empty list depending on FTP servers
635 if (files != null) {
636 list.addAll(Arrays.asList(files));
637 }
638 return list;
639 } catch (IOException e) {
640 throw new GenericFileOperationFailedException(client.getReplyCode(), client.getReplyString(), e.getMessage(), e);
641 }
642 }
643
644 public List<FTPFile> listFiles(String path) throws GenericFileOperationFailedException {
645 if (log.isTraceEnabled()) {
646 log.trace("listFiles(" + path + ")");
647 }
648 // use current directory if path not given
649 if (ObjectHelper.isEmpty(path)) {
650 path = ".";
651 }
652
653 try {
654 final List<FTPFile> list = new ArrayList<FTPFile>();
655 FTPFile[] files = client.listFiles(path);
656 // can return either null or an empty list depending on FTP servers
657 if (files != null) {
658 list.addAll(Arrays.asList(files));
659 }
660 return list;
661 } catch (IOException e) {
662 throw new GenericFileOperationFailedException(client.getReplyCode(), client.getReplyString(), e.getMessage(), e);
663 }
664 }
665
666 public boolean sendNoop() throws GenericFileOperationFailedException {
667 if (log.isTraceEnabled()) {
668 log.trace("sendNoOp");
669 }
670 try {
671 return client.sendNoOp();
672 } catch (IOException e) {
673 throw new GenericFileOperationFailedException(client.getReplyCode(), client.getReplyString(), e.getMessage(), e);
674 }
675 }
676
677 public boolean sendSiteCommand(String command) throws GenericFileOperationFailedException {
678 if (log.isTraceEnabled()) {
679 log.trace("sendSiteCommand(" + command + ")");
680 }
681 try {
682 return client.sendSiteCommand(command);
683 } catch (IOException e) {
684 throw new GenericFileOperationFailedException(client.getReplyCode(), client.getReplyString(), e.getMessage(), e);
685 }
686 }
687
688 protected FTPClient getFtpClient() {
689 return client;
690 }
691
692 private boolean buildDirectoryChunks(String dirName) throws IOException {
693 final StringBuilder sb = new StringBuilder(dirName.length());
694 final String[] dirs = dirName.split("/|\\\\");
695
696 boolean success = false;
697 for (String dir : dirs) {
698 sb.append(dir).append('/');
699 // must normalize the directory name
700 String directory = endpoint.getConfiguration().normalizePath(sb.toString());
701
702 // do not try to build root folder (/ or \)
703 if (!(directory.equals("/") || directory.equals("\\"))) {
704 if (log.isTraceEnabled()) {
705 log.trace("Trying to build remote directory by chunk: " + directory);
706 }
707
708 success = client.makeDirectory(directory);
709 }
710 }
711
712 return success;
713 }
714
715 }