Clover icon

Coverage Report

  1. Project Clover database Thu Nov 7 2024 17:01:39 GMT
  2. Package jalview.io

File BackupFiles.java

 

Coverage histogram

../../img/srcFileCovDistChart0.png
0% of files have more coverage

Code metrics

118
348
34
1
1,060
809
116
0.33
10.24
34
3.41

Classes

Class Line # Actions
BackupFiles 56 348 116
0.00%
 

Contributing tests

No tests hitting this source file were found.

Source view

1    /*
2    * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
3    * Copyright (C) $$Year-Rel$$ The Jalview Authors
4    *
5    * This file is part of Jalview.
6    *
7    * Jalview is free software: you can redistribute it and/or
8    * modify it under the terms of the GNU General Public License
9    * as published by the Free Software Foundation, either version 3
10    * of the License, or (at your option) any later version.
11    *
12    * Jalview is distributed in the hope that it will be useful, but
13    * WITHOUT ANY WARRANTY; without even the implied warranty
14    * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15    * PURPOSE. See the GNU General Public License for more details.
16    *
17    * You should have received a copy of the GNU General Public License
18    * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
19    * The Jalview Authors are detailed in the 'AUTHORS' file.
20    */
21    package jalview.io;
22   
23    import java.io.File;
24    import java.io.IOException;
25    import java.nio.file.Files;
26    import java.nio.file.Path;
27    import java.nio.file.Paths;
28    import java.nio.file.StandardCopyOption;
29    import java.text.SimpleDateFormat;
30    import java.util.ArrayList;
31    import java.util.HashMap;
32    import java.util.List;
33    import java.util.Map;
34    import java.util.TreeMap;
35    import java.util.concurrent.CompletableFuture;
36    import java.util.concurrent.ExecutionException;
37    import java.util.concurrent.ExecutorService;
38    import java.util.concurrent.Executors;
39    import java.util.concurrent.Future;
40   
41    import jalview.bin.Cache;
42    import jalview.bin.Console;
43    import jalview.gui.Desktop;
44    import jalview.gui.JvOptionPane;
45    import jalview.util.MessageManager;
46    import jalview.util.Platform;
47   
48    /*
49    * BackupFiles used for manipulating (naming rolling/deleting) backup/version files when an alignment or project file is saved.
50    * User configurable options are:
51    * BACKUPFILES_ENABLED - boolean flag as to whether to use this mechanism or act as before, including overwriting files as saved.
52    * The rest of the options are now saved as BACKUPFILES_PRESET, BACKUPFILES_SAVED and BACKUPFILES_CUSTOM
53    * (see BackupFilesPresetEntry)
54    */
55   
 
56    public class BackupFiles
57    {
58   
59    // labels for saved params in Cache and .jalview_properties
60    public static final String NS = "BACKUPFILES";
61   
62    public static final String ENABLED = NS + "_ENABLED";
63   
64    public static final String NUM_PLACEHOLDER = "%n";
65   
66    private static final String DEFAULT_TEMP_FILE = "jalview_temp_file_" + NS;
67   
68    private static final String TEMP_FILE_EXT = ".tmp";
69   
70    // file - File object to be backed up and then updated (written over)
71    private File file;
72   
73    // enabled - default flag as to whether to do the backup file roll (if not
74    // defined in preferences)
75    private static boolean enabled;
76   
77    // confirmDelete - default flag as to whether to confirm with the user before
78    // deleting old backup/version files
79    private static boolean confirmDelete;
80   
81    // defaultSuffix - default template to use to append to basename of file
82    private String suffix;
83   
84    // noMax - flag to turn off a maximum number of files
85    private boolean noMax;
86   
87    // defaultMax - default max number of backup files
88    private int max;
89   
90    // defaultDigits - number of zero-led digits to use in the filename
91    private int digits;
92   
93    // reverseOrder - set to true to make newest (latest) files lowest number
94    // (like rolled log files)
95    private boolean reverseOrder;
96   
97    // temp saved file to become new saved file
98    private File tempFile;
99   
100    // flag set to see if file save to temp file was successful
101    private boolean tempFileWriteSuccess;
102   
103    // array of files to be deleted, with extra information
104    private ArrayList<File> deleteFiles = new ArrayList<>();
105   
106    // date formatting for modification times
107    private static final SimpleDateFormat sdf = new SimpleDateFormat(
108    "yyyy-MM-dd HH:mm:ss");
109   
110    private static final String newTempFileSuffix = "_newfile";
111   
112    private static final String oldTempFileSuffix = "_oldfile_tobedeleted";
113   
114    // thread pool used for completablefutures
115    private static final ExecutorService executorService = Executors
116    .newFixedThreadPool(3);
117   
118    private static List<BackupFiles> savesInProgress = new ArrayList<>();
119   
120    private CompletableFuture<Boolean> myFuture = null;
121   
 
122  0 toggle private boolean addSaveInProgress()
123    {
124  0 if (savesInProgress.contains(this))
125    {
126  0 return false;
127    }
128    else
129    {
130  0 this.setMyFuture();
131  0 savesInProgress.add(this);
132  0 return true;
133    }
134    }
135   
 
136  0 toggle private boolean removeSaveInProgress(boolean ret)
137    {
138  0 if (savesInProgress.contains(this))
139    {
140  0 this.getMyFuture().complete(ret);
141    // remove all occurrences
142  0 while (savesInProgress.remove(this))
143    {
144    }
145  0 return true;
146    }
147  0 return false;
148    }
149   
 
150  0 toggle private static CompletableFuture<Boolean> getNewFuture()
151    {
152  0 return new CompletableFuture<Boolean>()
153    {
154    };
155    }
156   
 
157  0 toggle private CompletableFuture<Boolean> getMyFuture()
158    {
159  0 return this.myFuture;
160    }
161   
 
162  0 toggle private void setMyFuture()
163    {
164  0 this.myFuture = getNewFuture();
165    }
166   
 
167  0 toggle public static boolean hasSavesInProgress()
168    {
169  0 boolean has = false;
170  0 for (CompletableFuture cf : savesInProgressCompletableFutures(true))
171    {
172  0 has |= !cf.isDone();
173    }
174  0 return has;
175    }
176   
 
177  0 toggle public static List<File> savesInProgressFiles(boolean all)
178    {
179  0 List<File> files = new ArrayList<>();
180  0 for (BackupFiles bfile : savesInProgress)
181    {
182  0 if (all || !bfile.getMyFuture().isDone())
183  0 files.add(bfile.getFile());
184    }
185  0 return files;
186    }
187   
 
188  0 toggle public static List<CompletableFuture<Boolean>> savesInProgressCompletableFutures(
189    boolean all)
190    {
191  0 List<CompletableFuture<Boolean>> cfs = new ArrayList<>();
192  0 for (BackupFiles bfile : savesInProgress)
193    {
194  0 if (all || !bfile.getMyFuture().isDone())
195  0 cfs.add(bfile.getMyFuture());
196    }
197  0 return cfs;
198    }
199   
 
200  0 toggle public static Future<Boolean> allSaved()
201    {
202  0 CompletableFuture<Boolean> f = new CompletableFuture<>();
203   
204  0 executorService.submit(() -> {
205  0 for (BackupFiles buf : savesInProgress)
206    {
207  0 boolean allSaved = true;
208  0 try
209    {
210  0 allSaved &= buf.getMyFuture().get();
211    } catch (InterruptedException e)
212    {
213  0 Console.debug("InterruptedException waiting for files to save",
214    e);
215    } catch (ExecutionException e)
216    {
217  0 Console.debug("ExecutionException waiting for files to save", e);
218    }
219  0 f.complete(allSaved);
220    }
221    });
222  0 return f;
223    }
224   
 
225  0 toggle public BackupFiles(String filename)
226    {
227  0 this(new File(filename));
228    }
229   
230    // first time defaults for SUFFIX, NO_MAX, ROLL_MAX, SUFFIX_DIGITS and
231    // REVERSE_ORDER
 
232  0 toggle public BackupFiles(File file)
233    {
234  0 classInit();
235  0 if (file.getParentFile() == null)
236    {
237    // filename probably in pwd represented with no parent -- fix it before
238    // it's a problem
239  0 file = file.getAbsoluteFile();
240    }
241  0 this.file = file;
242   
243    // add this file from the save in progress stack
244  0 addSaveInProgress();
245   
246  0 BackupFilesPresetEntry bfpe = BackupFilesPresetEntry
247    .getSavedBackupEntry();
248  0 this.suffix = bfpe.suffix;
249  0 this.noMax = bfpe.keepAll;
250  0 this.max = bfpe.rollMax;
251  0 this.digits = bfpe.digits;
252  0 this.reverseOrder = bfpe.reverse;
253   
254    // create a temp file to save new data in
255  0 File temp = null;
256  0 try
257    {
258  0 if (file != null)
259    {
260  0 String tempfilename = file.getName();
261  0 File tempdir = file.getAbsoluteFile().getParentFile();
262  0 tempdir.mkdirs();
263  0 Console.trace(
264    "BACKUPFILES [file!=null] attempting to create temp file for "
265    + tempfilename + " in dir " + tempdir);
266  0 temp = File.createTempFile(tempfilename,
267    TEMP_FILE_EXT + newTempFileSuffix, tempdir);
268  0 Console.debug(
269    "BACKUPFILES using temp file " + temp.getAbsolutePath());
270    }
271    else
272    {
273  0 Console.trace(
274    "BACKUPFILES [file==null] attempting to create default temp file "
275    + DEFAULT_TEMP_FILE + " with extension "
276    + TEMP_FILE_EXT);
277  0 temp = File.createTempFile(DEFAULT_TEMP_FILE, TEMP_FILE_EXT);
278    }
279    } catch (IOException e)
280    {
281  0 Console.error("Could not create temp file to save to (IOException)");
282  0 Console.error(e.getMessage());
283  0 Console.debug(Cache.getStackTraceString(e));
284    } catch (Exception e)
285    {
286  0 Console.error("Exception creating temp file for saving");
287  0 Console.debug(Cache.getStackTraceString(e));
288    }
289  0 this.setTempFile(temp);
290    }
291   
 
292  0 toggle private static void classInit()
293    {
294  0 Console.initLogger();
295  0 Console.trace("BACKUPFILES classInit");
296  0 boolean e = Cache.getDefault(ENABLED, !Platform.isJS());
297  0 setEnabled(e);
298  0 Console.trace("BACKUPFILES " + (e ? "enabled" : "disabled"));
299  0 BackupFilesPresetEntry bfpe = BackupFilesPresetEntry
300    .getSavedBackupEntry();
301  0 Console.trace("BACKUPFILES preset scheme " + bfpe.toString());
302  0 setConfirmDelete(bfpe.confirmDelete);
303  0 Console.trace("BACKUPFILES confirm delete " + bfpe.confirmDelete);
304    }
305   
 
306  0 toggle public static void setEnabled(boolean flag)
307    {
308  0 enabled = flag;
309    }
310   
 
311  0 toggle public static boolean getEnabled()
312    {
313  0 classInit();
314  0 return enabled;
315    }
316   
 
317  0 toggle public static void setConfirmDelete(boolean flag)
318    {
319  0 confirmDelete = flag;
320    }
321   
 
322  0 toggle public static boolean getConfirmDelete()
323    {
324  0 classInit();
325  0 return confirmDelete;
326    }
327   
328    // set, get and rename temp file into place
 
329  0 toggle public void setTempFile(File temp)
330    {
331  0 this.tempFile = temp;
332    }
333   
 
334  0 toggle public File getTempFile()
335    {
336  0 return tempFile;
337    }
338   
 
339  0 toggle public String getTempFilePath()
340    {
341  0 String path = null;
342  0 try
343    {
344  0 path = this.getTempFile().getCanonicalPath();
345    } catch (IOException e)
346    {
347  0 Console.error("IOException when getting Canonical Path of temp file '"
348    + this.getTempFile().getName() + "'");
349  0 Console.debug(Cache.getStackTraceString(e));
350    }
351  0 return path;
352    }
353   
 
354  0 toggle public boolean setWriteSuccess(boolean flag)
355    {
356  0 boolean old = this.tempFileWriteSuccess;
357  0 this.tempFileWriteSuccess = flag;
358  0 return old;
359    }
360   
 
361  0 toggle public boolean getWriteSuccess()
362    {
363  0 return this.tempFileWriteSuccess;
364    }
365   
 
366  0 toggle public boolean renameTempFile()
367    {
368  0 return moveFileToFile(tempFile, file);
369    }
370   
371    // roll the backupfiles
 
372  0 toggle public boolean rollBackupFiles()
373    {
374  0 return this.rollBackupFiles(true);
375    }
376   
 
377  0 toggle public boolean rollBackupFiles(boolean tidyUp)
378    {
379    // file doesn't yet exist or backups are not enabled or template is null or
380    // empty
381  0 if ((!file.exists()) || (!enabled) || max < 0 || suffix == null
382    || suffix.length() == 0)
383    {
384    // nothing to do
385  0 Console.debug("BACKUPFILES rollBackupFiles nothing to do." + ", "
386  0 + "filename: " + (file != null ? file.getName() : "null")
387    + ", " + "file exists: " + file.exists() + ", " + "enabled: "
388    + enabled + ", " + "max: " + max + ", " + "suffix: '" + suffix
389    + "'");
390  0 return true;
391    }
392   
393  0 Console.trace("BACKUPFILES rollBackupFiles starting");
394   
395  0 String dir = "";
396  0 File dirFile;
397  0 try
398    {
399  0 dirFile = file.getParentFile();
400  0 dir = dirFile.getCanonicalPath();
401  0 Console.trace("BACKUPFILES dir: " + dir);
402    } catch (Exception e)
403    {
404  0 Console.error("Could not get canonical path for file '" + file + "'");
405  0 Console.error(e.getMessage());
406  0 Console.debug(Cache.getStackTraceString(e));
407  0 return false;
408    }
409  0 String filename = file.getName();
410  0 String basename = filename;
411   
412  0 Console.trace("BACKUPFILES filename is " + filename);
413  0 boolean ret = true;
414    // Create/move backups up one
415   
416  0 deleteFiles.clear();
417   
418    // find existing backup files
419  0 BackupFilenameFilter bff = new BackupFilenameFilter(basename, suffix,
420    digits);
421  0 File[] backupFiles = dirFile.listFiles(bff);
422  0 int nextIndexNum = 0;
423   
424  0 Console.trace("BACKUPFILES backupFiles.length: " + backupFiles.length);
425  0 if (backupFiles.length == 0)
426    {
427    // No other backup files. Just need to move existing file to backupfile_1
428  0 Console.trace(
429    "BACKUPFILES no existing backup files, setting index to 1");
430  0 nextIndexNum = 1;
431    }
432    else
433    {
434  0 TreeMap<Integer, File> bfTreeMap = sortBackupFilesAsTreeMap(
435    backupFiles, basename);
436    // bfTreeMap now a sorted list of <Integer index>,<File backupfile>
437    // mappings
438   
439  0 if (reverseOrder)
440    {
441    // backup style numbering
442  0 Console.trace("BACKUPFILES rolling files in reverse order");
443   
444  0 int tempMax = noMax ? -1 : max;
445    // noMax == true means no limits
446    // look for first "gap" in backupFiles
447    // if tempMax is -1 at this stage just keep going until there's a gap,
448    // then hopefully tempMax gets set to the right index (a positive
449    // integer so the loop breaks)...
450    // why do I feel a little uneasy about this loop?..
451  0 for (int i = 1; tempMax < 0 || i <= max; i++)
452    {
453  0 if (!bfTreeMap.containsKey(i)) // first index without existent
454    // backupfile
455    {
456  0 tempMax = i;
457    }
458    }
459   
460  0 File previousFile = null;
461  0 File fileToBeDeleted = null;
462  0 for (int n = tempMax; n > 0; n--)
463    {
464  0 String backupfilename = dir + File.separatorChar
465    + BackupFilenameParts.getBackupFilename(n, basename,
466    suffix, digits);
467  0 File backupfile_n = new File(backupfilename);
468   
469  0 if (!backupfile_n.exists())
470    {
471    // no "oldest" file to delete
472  0 previousFile = backupfile_n;
473  0 fileToBeDeleted = null;
474  0 Console.trace("BACKUPFILES No oldest file to delete");
475  0 continue;
476    }
477   
478    // check the modification time of this (backupfile_n) and the previous
479    // file (fileToBeDeleted) if the previous file is going to be deleted
480  0 if (fileToBeDeleted != null)
481    {
482  0 File replacementFile = backupfile_n;
483  0 long fileToBeDeletedLMT = fileToBeDeleted.lastModified();
484  0 long replacementFileLMT = replacementFile.lastModified();
485  0 Console.trace("BACKUPFILES fileToBeDeleted is "
486    + fileToBeDeleted.getAbsolutePath());
487  0 Console.trace("BACKUPFILES replacementFile is "
488    + backupfile_n.getAbsolutePath());
489   
490  0 try
491    {
492  0 File oldestTempFile = nextTempFile(fileToBeDeleted.getName(),
493    dirFile);
494   
495  0 if (fileToBeDeletedLMT > replacementFileLMT)
496    {
497  0 String fileToBeDeletedLMTString = sdf
498    .format(fileToBeDeletedLMT);
499  0 String replacementFileLMTString = sdf
500    .format(replacementFileLMT);
501  0 Console.warn("WARNING! I am set to delete backupfile "
502    + fileToBeDeleted.getName()
503    + " has modification time "
504    + fileToBeDeletedLMTString
505    + " which is newer than its replacement "
506    + replacementFile.getName()
507    + " with modification time "
508    + replacementFileLMTString);
509   
510  0 boolean delete = confirmNewerDeleteFile(fileToBeDeleted,
511    replacementFile, true);
512  0 Console.trace("BACKUPFILES "
513  0 + (delete ? "confirmed" : "not") + " deleting file "
514    + fileToBeDeleted.getAbsolutePath()
515    + " which is newer than "
516    + replacementFile.getAbsolutePath());
517   
518  0 if (delete)
519    {
520    // User has confirmed delete -- no need to add it to the list
521  0 fileToBeDeleted.delete();
522    }
523    else
524    {
525  0 Console.debug("BACKUPFILES moving "
526    + fileToBeDeleted.getAbsolutePath() + " to "
527    + oldestTempFile.getAbsolutePath());
528  0 moveFileToFile(fileToBeDeleted, oldestTempFile);
529    }
530    }
531    else
532    {
533  0 Console.debug("BACKUPFILES going to move "
534    + fileToBeDeleted.getAbsolutePath() + " to "
535    + oldestTempFile.getAbsolutePath());
536  0 moveFileToFile(fileToBeDeleted, oldestTempFile);
537  0 addDeleteFile(oldestTempFile);
538    }
539   
540    } catch (Exception e)
541    {
542  0 Console.error(
543    "Error occurred, probably making new temp file for '"
544    + fileToBeDeleted.getName() + "'");
545  0 Console.error(Cache.getStackTraceString(e));
546    }
547   
548    // reset
549  0 fileToBeDeleted = null;
550    }
551   
552  0 if (!noMax && n == tempMax && backupfile_n.exists())
553    {
554  0 fileToBeDeleted = backupfile_n;
555    }
556    else
557    {
558  0 if (previousFile != null)
559    {
560    // using boolean '&' instead of '&&' as don't want moveFileToFile
561    // attempt to be conditional (short-circuit)
562  0 ret = ret & moveFileToFile(backupfile_n, previousFile);
563    }
564    }
565   
566  0 previousFile = backupfile_n;
567    }
568   
569    // index to use for the latest backup
570  0 nextIndexNum = 1;
571    }
572    else // not reverse numbering
573    {
574    // version style numbering (with earliest file deletion if max files
575    // reached)
576   
577  0 bfTreeMap.values().toArray(backupFiles);
578  0 StringBuilder bfsb = new StringBuilder();
579  0 for (int i = 0; i < backupFiles.length; i++)
580    {
581  0 if (bfsb.length() > 0)
582    {
583  0 bfsb.append(", ");
584    }
585  0 bfsb.append(backupFiles[i].getName());
586    }
587  0 Console.trace("BACKUPFILES backupFiles: " + bfsb.toString());
588   
589    // noMax == true means keep all backup files
590  0 if ((!noMax) && bfTreeMap.size() >= max)
591    {
592  0 Console.trace("BACKUPFILES noMax: " + noMax + ", " + "max: " + max
593    + ", " + "bfTreeMap.size(): " + bfTreeMap.size());
594    // need to delete some files to keep number of backups to designated
595    // max.
596    // Note that if the suffix is not numbered then do not delete any
597    // backup files later or we'll delete the new backup file (there can
598    // be only one).
599  0 int numToDelete = suffix.indexOf(NUM_PLACEHOLDER) > -1
600    ? bfTreeMap.size() - max + 1
601    : 0;
602  0 Console.trace("BACKUPFILES numToDelete: " + numToDelete);
603    // the "replacement" file is the latest backup file being kept (it's
604    // not replacing though)
605  0 File replacementFile = numToDelete < backupFiles.length
606    ? backupFiles[numToDelete]
607    : null;
608  0 for (int i = 0; i < numToDelete; i++)
609    {
610    // check the deletion files for modification time of the last
611    // backupfile being saved
612  0 File fileToBeDeleted = backupFiles[i];
613  0 boolean delete = true;
614   
615  0 Console.trace(
616    "BACKUPFILES fileToBeDeleted: " + fileToBeDeleted);
617   
618  0 boolean newer = false;
619  0 if (replacementFile != null)
620    {
621  0 long fileToBeDeletedLMT = fileToBeDeleted.lastModified();
622  0 long replacementFileLMT = replacementFile != null
623    ? replacementFile.lastModified()
624    : Long.MAX_VALUE;
625  0 if (fileToBeDeletedLMT > replacementFileLMT)
626    {
627  0 String fileToBeDeletedLMTString = sdf
628    .format(fileToBeDeletedLMT);
629  0 String replacementFileLMTString = sdf
630    .format(replacementFileLMT);
631   
632  0 Console.warn("WARNING! I am set to delete backupfile '"
633    + fileToBeDeleted.getName()
634    + "' has modification time "
635    + fileToBeDeletedLMTString
636    + " which is newer than the oldest backupfile being kept '"
637    + replacementFile.getName()
638    + "' with modification time "
639    + replacementFileLMTString);
640   
641  0 delete = confirmNewerDeleteFile(fileToBeDeleted,
642    replacementFile, false);
643  0 if (delete)
644    {
645    // User has confirmed delete -- no need to add it to the list
646  0 fileToBeDeleted.delete();
647  0 Console.debug("BACKUPFILES deleting fileToBeDeleted: "
648    + fileToBeDeleted);
649  0 delete = false;
650    }
651    else
652    {
653    // keeping file, nothing to do!
654  0 Console.debug("BACKUPFILES keeping fileToBeDeleted: "
655    + fileToBeDeleted);
656    }
657    }
658    }
659  0 if (delete)
660    {
661  0 addDeleteFile(fileToBeDeleted);
662  0 Console.debug("BACKUPFILES addDeleteFile(fileToBeDeleted): "
663    + fileToBeDeleted);
664    }
665   
666    }
667   
668    }
669   
670  0 nextIndexNum = bfTreeMap.lastKey() + 1;
671    }
672    }
673   
674    // Let's make the new backup file!! yay, got there at last!
675  0 String latestBackupFilename = dir + File.separatorChar
676    + BackupFilenameParts.getBackupFilename(nextIndexNum, basename,
677    suffix, digits);
678  0 Console.trace("BACKUPFILES Moving old file [" + file
679    + "] to latestBackupFilename [" + latestBackupFilename + "]");
680    // using boolean '&' instead of '&&' as don't want moveFileToFile attempt to
681    // be conditional (short-circuit)
682  0 ret = ret & moveFileToFile(file, new File(latestBackupFilename));
683  0 Console.debug(
684    "BACKUPFILES moving " + file + " to " + latestBackupFilename
685  0 + " was " + (ret ? "" : "NOT ") + "successful");
686  0 if (tidyUp)
687    {
688  0 Console.debug("BACKUPFILES tidying up files");
689  0 tidyUpFiles();
690    }
691   
692  0 return ret;
693    }
694   
 
695  0 toggle private static File nextTempFile(String filename, File dirFile)
696    throws IOException
697    {
698  0 File temp = null;
699  0 COUNT: for (int i = 1; i < 1000; i++)
700    {
701  0 File trythis = new File(dirFile,
702    filename + '~' + Integer.toString(i));
703  0 if (!trythis.exists())
704    {
705  0 temp = trythis;
706  0 break COUNT;
707    }
708   
709    }
710  0 if (temp == null)
711    {
712  0 temp = File.createTempFile(filename, TEMP_FILE_EXT, dirFile);
713    }
714  0 return temp;
715    }
716   
 
717  0 toggle private void tidyUpFiles()
718    {
719  0 deleteOldFiles();
720    }
721   
 
722  0 toggle private static boolean confirmNewerDeleteFile(File fileToBeDeleted,
723    File replacementFile, boolean replace)
724    {
725  0 StringBuilder messageSB = new StringBuilder();
726   
727  0 File ftbd = fileToBeDeleted;
728  0 String ftbdLMT = sdf.format(ftbd.lastModified());
729  0 String ftbdSize = Long.toString(ftbd.length());
730   
731  0 File rf = replacementFile;
732  0 String rfLMT = sdf.format(rf.lastModified());
733  0 String rfSize = Long.toString(rf.length());
734   
735  0 int confirmButton = JvOptionPane.NO_OPTION;
736  0 if (replace)
737    {
738  0 File saveFile = null;
739  0 try
740    {
741  0 saveFile = nextTempFile(ftbd.getName(), ftbd.getParentFile());
742    } catch (Exception e)
743    {
744  0 Console.error(
745    "Error when confirming to keep backup file newer than other backup files.");
746  0 e.printStackTrace();
747    }
748  0 messageSB.append(MessageManager.formatMessage(
749    "label.newerdelete_replacement_line", new String[]
750    { ftbd.getName(), rf.getName(), ftbdLMT, rfLMT, ftbdSize,
751    rfSize }));
752    // "Backup file\n''{0}''\t(modified {2}, size {4})\nis to be deleted and
753    // replaced by apparently older file \n''{1}''\t(modified {3}, size
754    // {5}).""
755  0 messageSB.append("\n\n");
756  0 messageSB.append(MessageManager.formatMessage(
757    "label.confirm_deletion_or_rename", new String[]
758    { ftbd.getName(), saveFile.getName() }));
759    // "Confirm deletion of ''{0}'' or rename to ''{1}''?"
760  0 String[] options = new String[] {
761    MessageManager.getString("label.delete"),
762    MessageManager.getString("label.rename") };
763   
764  0 confirmButton = Platform.isHeadless() ? JvOptionPane.YES_OPTION
765    : JvOptionPane.showOptionDialog(Desktop.desktop,
766    messageSB.toString(),
767    MessageManager.getString(
768    "label.backupfiles_confirm_delete"),
769    // "Confirm delete"
770    JvOptionPane.YES_NO_OPTION,
771    JvOptionPane.WARNING_MESSAGE, null, options,
772    options[0]);
773    }
774    else
775    {
776  0 messageSB.append(MessageManager
777    .formatMessage("label.newerdelete_line", new String[]
778    { ftbd.getName(), rf.getName(), ftbdLMT, rfLMT, ftbdSize,
779    rfSize }));
780    // "Backup file\n''{0}''\t(modified {2}, size {4})\nis to be deleted but
781    // is newer than the oldest remaining backup file \n''{1}''\t(modified
782    // {3}, size {5})."
783  0 messageSB.append("\n\n");
784  0 messageSB.append(MessageManager
785    .formatMessage("label.confirm_deletion", new String[]
786    { ftbd.getName() }));
787    // "Confirm deletion of ''{0}''?"
788  0 String[] options = new String[] {
789    MessageManager.getString("label.delete"),
790    MessageManager.getString("label.keep") };
791   
792  0 confirmButton = Platform.isHeadless() ? JvOptionPane.YES_OPTION
793    : JvOptionPane.showOptionDialog(Desktop.desktop,
794    messageSB.toString(),
795    MessageManager.getString(
796    "label.backupfiles_confirm_delete"),
797    // "Confirm delete"
798    JvOptionPane.YES_NO_OPTION,
799    JvOptionPane.WARNING_MESSAGE, null, options,
800    options[0]);
801    }
802   
803    // return should be TRUE if file is to be deleted
804  0 return (confirmButton == JvOptionPane.YES_OPTION);
805    }
806   
 
807  0 toggle private void deleteOldFiles()
808    {
809  0 if (deleteFiles != null && !deleteFiles.isEmpty())
810    {
811  0 boolean doDelete = false;
812  0 StringBuilder messageSB = null;
813  0 if (confirmDelete && deleteFiles.size() > 0)
814    {
815  0 messageSB = new StringBuilder();
816  0 messageSB.append(MessageManager
817    .getString("label.backupfiles_confirm_delete_old_files"));
818    // "Delete the following older backup files? (see the Backups tab in
819    // Preferences for more options)"
820  0 for (int i = 0; i < deleteFiles.size(); i++)
821    {
822  0 File df = deleteFiles.get(i);
823  0 messageSB.append("\n");
824  0 messageSB.append(df.getName());
825  0 messageSB.append(" ");
826  0 messageSB.append(MessageManager.formatMessage("label.file_info",
827    new String[]
828    { sdf.format(df.lastModified()),
829    Long.toString(df.length()) }));
830    // "(modified {0}, size {1})"
831    }
832   
833  0 int confirmButton = Platform.isHeadless() ? JvOptionPane.YES_OPTION
834    : JvOptionPane.showConfirmDialog(Desktop.desktop,
835    messageSB.toString(),
836    MessageManager.getString(
837    "label.backupfiles_confirm_delete"),
838    // "Confirm delete"
839    JvOptionPane.YES_NO_OPTION,
840    JvOptionPane.WARNING_MESSAGE);
841   
842  0 doDelete = (confirmButton == JvOptionPane.YES_OPTION);
843    }
844    else
845    {
846  0 doDelete = true;
847    }
848   
849  0 if (doDelete)
850    {
851  0 for (int i = 0; i < deleteFiles.size(); i++)
852    {
853  0 File fileToDelete = deleteFiles.get(i);
854  0 Console.trace("BACKUPFILES about to delete fileToDelete:"
855    + fileToDelete);
856  0 fileToDelete.delete();
857  0 Console.warn("deleted '" + fileToDelete.getName() + "'");
858    }
859    }
860   
861    }
862   
863  0 deleteFiles.clear();
864    }
865   
 
866  0 toggle private TreeMap<Integer, File> sortBackupFilesAsTreeMap(
867    File[] backupFiles, String basename)
868    {
869    // sort the backup files (based on integer found in the suffix) using a
870    // precomputed Hashmap for speed
871  0 Map<Integer, File> bfHashMap = new HashMap<>();
872  0 for (int i = 0; i < backupFiles.length; i++)
873    {
874  0 File f = backupFiles[i];
875  0 BackupFilenameParts bfp = new BackupFilenameParts(f, basename, suffix,
876    digits);
877  0 bfHashMap.put(bfp.indexNum(), f);
878    }
879  0 TreeMap<Integer, File> bfTreeMap = new TreeMap<>();
880  0 bfTreeMap.putAll(bfHashMap);
881  0 return bfTreeMap;
882    }
883   
 
884  0 toggle public boolean rollBackupsAndRenameTempFile()
885    {
886  0 boolean write = this.getWriteSuccess();
887   
888  0 boolean roll = false;
889  0 boolean rename = false;
890  0 if (write)
891    {
892  0 roll = this.rollBackupFiles(false); // tidyUpFiles at the end
893  0 rename = this.renameTempFile();
894    }
895   
896    /*
897    * Not sure that this confirmation is desirable. By this stage the new file is
898    * already written successfully, but something (e.g. disk full) has happened while
899    * trying to roll the backup files, and most likely the filename needed will already
900    * be vacant so renaming the temp file is nearly always correct!
901    */
902  0 boolean okay = roll && rename;
903  0 if (!okay)
904    {
905  0 StringBuilder messageSB = new StringBuilder();
906  0 messageSB.append(MessageManager.getString(
907    "label.backupfiles_confirm_save_file_backupfiles_roll_wrong"));
908    // "Something possibly went wrong with the backups of this file."
909  0 if (rename)
910    {
911  0 if (messageSB.length() > 0)
912    {
913  0 messageSB.append("\n");
914    }
915  0 messageSB.append(MessageManager.getString(
916    "label.backupfiles_confirm_save_new_saved_file_ok"));
917    // "The new saved file seems okay."
918    }
919    else
920    {
921  0 if (messageSB.length() > 0)
922    {
923  0 messageSB.append("\n");
924    }
925  0 messageSB.append(MessageManager.getString(
926    "label.backupfiles_confirm_save_new_saved_file_not_ok"));
927    // "The new saved file might not be okay."
928    }
929  0 if (messageSB.length() > 0)
930    {
931  0 messageSB.append("\n");
932    }
933  0 messageSB
934    .append(MessageManager.getString("label.continue_operation"));
935   
936  0 int confirmButton = Platform.isHeadless() ? JvOptionPane.OK_OPTION
937    : JvOptionPane.showConfirmDialog(Desktop.desktop,
938    messageSB.toString(),
939    MessageManager.getString(
940    "label.backupfiles_confirm_save_file"),
941    // "Confirm save file"
942    JvOptionPane.OK_OPTION, JvOptionPane.WARNING_MESSAGE);
943  0 okay = confirmButton == JvOptionPane.OK_OPTION;
944    }
945  0 if (okay)
946    {
947  0 tidyUpFiles();
948    }
949   
950    // remove this file from the save in progress stack
951  0 removeSaveInProgress(rename);
952   
953  0 return rename;
954    }
955   
 
956  0 toggle public static TreeMap<Integer, File> getBackupFilesAsTreeMap(
957    String fileName, String suffix, int digits)
958    {
959  0 File[] backupFiles = null;
960   
961  0 File file = new File(fileName);
962   
963  0 File dirFile;
964  0 try
965    {
966  0 dirFile = file.getParentFile();
967    } catch (Exception e)
968    {
969  0 Console.error("Could not get canonical path for file '" + file + "'");
970  0 return new TreeMap<>();
971    }
972   
973  0 String filename = file.getName();
974  0 String basename = filename;
975   
976    // find existing backup files
977  0 BackupFilenameFilter bff = new BackupFilenameFilter(basename, suffix,
978    digits);
979  0 backupFiles = dirFile.listFiles(bff); // is clone needed?
980   
981    // sort the backup files (based on integer found in the suffix) using a
982    // precomputed Hashmap for speed
983  0 Map<Integer, File> bfHashMap = new HashMap<>();
984  0 for (int i = 0; i < backupFiles.length; i++)
985    {
986  0 File f = backupFiles[i];
987  0 BackupFilenameParts bfp = new BackupFilenameParts(f, basename, suffix,
988    digits);
989  0 bfHashMap.put(bfp.indexNum(), f);
990    }
991  0 TreeMap<Integer, File> bfTreeMap = new TreeMap<>();
992  0 bfTreeMap.putAll(bfHashMap);
993   
994  0 return bfTreeMap;
995    }
996   
997    /*
998    private boolean addDeleteFile(File fileToBeDeleted, File originalFile,
999    boolean delete, boolean newer)
1000    {
1001    return addDeleteFile(fileToBeDeleted, originalFile, null, delete, newer);
1002    }
1003    */
 
1004  0 toggle private boolean addDeleteFile(File fileToBeDeleted)
1005    {
1006  0 boolean ret = false;
1007  0 int pos = deleteFiles.indexOf(fileToBeDeleted);
1008  0 if (pos > -1)
1009    {
1010  0 Console.debug("BACKUPFILES not adding file "
1011    + fileToBeDeleted.getAbsolutePath()
1012    + " to the delete list (already at index" + pos + ")");
1013  0 return true;
1014    }
1015    else
1016    {
1017  0 Console.debug("BACKUPFILES adding file "
1018    + fileToBeDeleted.getAbsolutePath() + " to the delete list");
1019  0 deleteFiles.add(fileToBeDeleted);
1020    }
1021  0 return ret;
1022    }
1023   
 
1024  0 toggle public File getFile()
1025    {
1026  0 return file;
1027    }
1028   
 
1029  0 toggle public static boolean moveFileToFile(File oldFile, File newFile)
1030    {
1031  0 Console.initLogger();
1032  0 boolean ret = false;
1033  0 Path oldPath = Paths.get(oldFile.getAbsolutePath());
1034  0 Path newPath = Paths.get(newFile.getAbsolutePath());
1035  0 try
1036    {
1037    // delete destination file - not usually necessary but Just In Case...
1038  0 Console.trace("BACKUPFILES deleting " + newFile.getAbsolutePath());
1039  0 newFile.delete();
1040  0 Console.trace("BACKUPFILES moving " + oldFile.getAbsolutePath()
1041    + " to " + newFile.getAbsolutePath());
1042  0 Files.move(oldPath, newPath, StandardCopyOption.REPLACE_EXISTING);
1043  0 ret = true;
1044  0 Console.trace("BACKUPFILES move seems to have succeeded");
1045    } catch (IOException e)
1046    {
1047  0 Console.warn("Could not move file '" + oldPath.toString() + "' to '"
1048    + newPath.toString() + "'");
1049  0 Console.error(e.getMessage());
1050  0 Console.debug(Cache.getStackTraceString(e));
1051  0 ret = false;
1052    } catch (Exception e)
1053    {
1054  0 Console.error(e.getMessage());
1055  0 Console.debug(Cache.getStackTraceString(e));
1056  0 ret = false;
1057    }
1058  0 return ret;
1059    }
1060    }
  • Report generated by OpenClover v 4.4.1 on Thu Nov 7 2024 17:02:19 GMT using coverage data from Thu Jan 1 1970 01:00:00 GMT.
  • OpenClover is free and open-source software.