1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
|
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
package com.sun.star.filter.config.tools.utils;
// __________ Imports __________
import java.io.*;
import java.lang.*;
import java.net.*;
import java.util.*;
// __________ Implementation __________
/**
* It collects some static helper functons to handle file system specific problems.
* Sometimes it's neccessary to convert URL from/to system paths;
* or from string notation to structural versions (e.g. com.sun.star.util.URL).
* And sometimes java had another notation then the office it has.
* Further it provides functionality to work easiear with the java.io.File class of java.
*
*
*/
public class FileHelper
{
// ____________________
/**
* Because the office need URLs for loading/saving documents
* we must convert used system paths.
* And java use another notation for file URLs ... correct it.
*
* @param aSystemPath
* represent the file in system notation
*
* @return [String]
* a file url which represent the given system path
*/
public static java.lang.String getFileURLFromSystemPath(java.io.File aSystemPath)
{
System.out.println("TODO: must be adapted to java 1.3 :-(");
System.exit(-1);
/*TODO_JAVA
try
{
sFileURL = aSystemPath.toURI().toURL().toString();
}
catch( MalformedURLException exWrong )
{
sFileURL = null;
}
*/
java.lang.String sFileURL = null;
// problem of java: file URL's are coded with 1 slash instead of 2 or 3 ones!
// => correct this problem first, otherwise office can't use these URL's
if(
(sFileURL != null ) &&
(sFileURL.startsWith("file:/")) &&
(!sFileURL.startsWith("file://"))
)
{
java.lang.StringBuffer sWorkBuffer = new java.lang.StringBuffer(sFileURL);
sWorkBuffer.insert(6,"//");
sFileURL = sWorkBuffer.toString();
}
return sFileURL;
}
// ____________________
/**
* The same as getFileURLFromSystemPath() before but uses string parameter instead
* of a java.io.File type. It exist to supress converting of neccessary parameters in the
* outside code. But of course getFileURLFromSystemPath(File) will be a little bit faster
* then this method ...
*
* @param sSystemPath
* represent the file in system notation
*
* @return [String]
* a file url which represent the given system path
*/
public static java.lang.String getFileURLFromSystemPath(java.lang.String sSystemPath)
{
return getFileURLFromSystemPath(new java.io.File(sSystemPath));
}
// ____________________
/**
* Does the same as getFileURLFromSystemPath() before ... but uses
* the given protocol string (e.g."http://") instead of "file:///".
*
* @param aSystemPath
* represent the file in system notation
*
* @param aBasePath
* define the base path of the aSystemPath value,
* which must be replaced with the value of "sServerPath".
*
* @param sServerURL
* Will be used to replace sBasePath.
*
* @example
* System Path = "d:\test\file.txt"
* Base Path = "d:\test"
* Server Path = "http://alaska:8000"
* => "http://alaska:8000/file.txt"
*
* @return [String]
* an url which represent the given system path
* and uses the given protocol
*/
public static java.lang.String getURLWithProtocolFromSystemPath(java.io.File aSystemPath,
java.io.File aBasePath ,
java.lang.String sServerURL )
{
System.out.println("TODO: must be adapted to java 1.3 :-(");
System.exit(-1);
java.lang.String sFileURL = FileHelper.getFileURLFromSystemPath(aSystemPath);
java.lang.String sBaseURL = FileHelper.getFileURLFromSystemPath(aBasePath );
// cut last '/'!
if (sBaseURL.lastIndexOf('/')==(sBaseURL.length()-1))
sBaseURL = sBaseURL.substring(0,sBaseURL.length()-1);
// cut last '/'!
if (sServerURL.lastIndexOf('/')==(sServerURL.length()-1))
sServerURL = sServerURL.substring(0,sServerURL.length()-1);
//TODO_JAVA java.lang.String sURL = sFileURL.replaceFirst(sBaseURL,sServerURL);
java.lang.String sURL = null;
return sURL;
}
// ____________________
/**
* The same as getURLWithProtocolFromSystemPath() before but uses string parameter instead
* of a java.io.File types. It exist to supress converting of neccessary parameters in the
* outside code. But of course getURLWithProtocolFromSystemPath(File,File,String) will be
* a little bit faster then this method ...
*
* @param sSystemPath
* represent the file in system notation
*
* @param sBasePath
* define the base path of the aSystemPath value,
* which must be replaced with the value of "sServerPath".
*
* @param sServerPath
* Will be used to replace sBasePath.
*
* @example
* System Path = "d:\test\file.txt"
* Base Path = "d:\test"
* Server Path = "http://alaska:8000"
* => "http://alaska:8000/file.txt"
*
* @return [String]
* an url which represent the given system path
* and uses the given protocol
*/
public static java.lang.String getURLWithProtocolFromSystemPath(java.lang.String sSystemPath,
java.lang.String sBasePath ,
java.lang.String sServerPath)
{
return getURLWithProtocolFromSystemPath(new java.io.File(sSystemPath), new java.io.File(sBasePath), sServerPath);
}
//_________________________________
/**
* Return a list of all available files of a directory.
* We filter sub directories. All other files
* are returned. So they can be used for further purposes.
* One parameter define the start directory,
* another one enable/disable recursive search into sub directories.
*
* @param aRoot
* the start directory, which should be analyzed.
*
* @param bRecursive
* enable/disable search in sub directories.
*
* @return [Vector]
* a filtered list of java java.io.File objects of all available files
* of the start dir (and may of its sub directories).
*/
public static java.util.Vector getSystemFilesFromDir(java.io.File aRoot ,
boolean bRecursive)
{
java.io.File[] lAllFiles = aRoot.listFiles();
if (lAllFiles == null)
return null;
int c = lAllFiles.length;
java.util.Vector lFilteredFiles = new java.util.Vector(c);
for (int i=0; i<c; ++i)
{
// simple files!
if (lAllFiles[i].isFile())
lFilteredFiles.add(lAllFiles[i]);
else
// recursion?
if (bRecursive && lAllFiles[i].isDirectory())
{
java.util.Vector lSubFiles = FileHelper.getSystemFilesFromDir(lAllFiles[i],bRecursive);
if (lSubFiles != null)
{
java.util.Enumeration aSnapshot = lSubFiles.elements();
while (aSnapshot.hasMoreElements())
lFilteredFiles.add(aSnapshot.nextElement());
}
}
}
return lFilteredFiles;
}
//_________________________________
/** it converts the given name (e.g. an internal type name) to
* an usable system file name.
*
* Do so some special characters (e.g. "/") must be replaced with other ones.
*
* @param sName
* the name, which should be analyzed and converted.
*
* @return A valid system file name, which should be similar to the
* given name, but does not contain special characters any longer.
*/
public static java.lang.String convertName2FileName(String sName)
{
int i = 0;
int nLength = sName.length();
char[] lBuffer = sName.toCharArray();
java.lang.StringBuffer sNewName = new java.lang.StringBuffer(nLength);
for (i=0; i<nLength; ++i)
{
char c = lBuffer[i];
if (
c>=48 && c<=57 // 0-9
&&
c>=97 && c<=122 // a-z
&&
c>=65 && c<=90 // A-Z
)
{
sNewName.append(c);
}
else
{
sNewName.append("_");
}
}
return sNewName.toString();
}
//___________________________________________
/** it removes all child nodes of a file system directory.
*
* @param aDirectory
* points to the directory, which should be made empty.
*
* @param bFilesOnly
* force deletion of files only. If its set to TRUE,
* no subdirectory will be removed.
*
* @throw [java.io.IOException]
* if some of the child nodes couldn't be removed.
*/
public static void makeDirectoryEmpty(java.io.File aDirectory,
boolean bFilesOnly)
throws java.io.IOException
{
if (!aDirectory.isDirectory())
throw new java.io.FileNotFoundException("\""+aDirectory.toString()+"\" is not a directory.");
java.io.File[] lChildren = aDirectory.listFiles();
for (int f=0; f<lChildren.length; ++f)
{
if (lChildren[f].isDirectory())
{
FileHelper.makeDirectoryEmpty(lChildren[f], bFilesOnly);
if (!bFilesOnly)
{
if (!lChildren[f].delete())
throw new java.io.IOException("\""+lChildren[f].toString()+"\" could not be deleted.");
}
}
else
{
if (!lChildren[f].delete())
throw new java.io.IOException("\""+lChildren[f].toString()+"\" could not be deleted.");
}
}
}
//___________________________________________
/** it try to generate a new file with a unique ID
* inside given directory.
*
* Call this method with a directory and a base name for
* a file. It will be used to generate a new files inside
* the directory. Existing files will be checked and new file
* name will be tested till a non existing file name would be found.
*
* @param aBaseDir
* must be a system path
* e.g.: "c:\temp"
*
* @param sBaseName
* must be a system file name without extensions.
* e.g.: "myfile_"
*
* @param sExtension
* the whished extension.
* e.g.: "dat"
*
* @return A valid file object, if an unique file could be created -
* Null otherwise.
* e.g.: "c:\temp\myfile_1.dat"
*/
public static java.io.File createUniqueFile(java.io.File aBaseDir ,
java.lang.String sBaseName ,
java.lang.String sExtension)
{
java.io.File aBaseFile = new java.io.File(aBaseDir, sBaseName);
java.io.File aFile = null;
long nr = 0;
while (aFile == null && nr < java.lang.Long.MAX_VALUE)
{
java.lang.String sFileName = aBaseFile.getPath() + java.lang.String.valueOf(nr) + "." + sExtension;
aFile = new java.io.File(sFileName);
if (aFile.exists())
aFile=null;
++nr;
}
return aFile;
}
//___________________________________________
/** reads the complete file, using the right encoding,
* into the given string buffer.
*
* @param aFile
* must point to a system file, which must exist.
* e.g.: "c:\temp\test.txt"
* "/tmp/test.txt"
*
* @param sEncoding
* will be used to encode the string content
* inside the file.
* e.g.: "UTF8"
*
* @param sBuffer
* used to return the file content.
*
* @throw [IOException]
* - if the file couldnt be opened
* - if the file does not use the right encoding
*/
public static void readEncodedBufferFromFile(java.io.File aFile ,
java.lang.String sEncoding,
java.lang.StringBuffer sBuffer )
throws java.io.IOException
{
if (sEncoding.equals("UTF-8Special"))
{
FileHelper.readAndCheckUTF8File(aFile,sBuffer);
return;
}
java.io.FileInputStream aByteStream = new java.io.FileInputStream(aFile.getAbsolutePath());
java.io.InputStreamReader aEncodedReader = new java.io.InputStreamReader(aByteStream, sEncoding);
char[] aEncodedBuffer = new char[4096];
int nReadCount = 0;
while((nReadCount=aEncodedReader.read(aEncodedBuffer))>0)
sBuffer.append(aEncodedBuffer, 0, nReadCount);
aEncodedReader.close();
}
//___________________________________________
private static void logEncodingData(java.lang.StringBuffer sLog ,
int nUTF8 ,
int nByteOrg1 ,
int nByteOrg2 ,
int nByteOrg3 ,
int nByteOrg4 ,
int nByte1 ,
int nByte2 ,
int nByte3 ,
int nByte4 ,
int nEncodingType)
{
sLog.append("["+nEncodingType+"]\t");
sLog.append((int)nUTF8+"\t=");
sLog.append("\t"+nByteOrg1+"/"+nByte1);
sLog.append("\t"+nByteOrg2+"/"+nByte2);
sLog.append("\t"+nByteOrg3+"/"+nByte3);
sLog.append("\t"+nByteOrg4+"/"+nByte4);
sLog.append("\n");
}
//___________________________________________
private static char impl_convertBytesToChar(int nByte1, int nByte2, int nByte3, int nByte4)
{
return (char)((nByte1*0x40000)+(nByte2*0x1000)+(nByte3*0x40)+nByte4);
}
//___________________________________________
private static int impl_readAndCheckNextByte(byte[] aBuffer ,
int nBufPos ,
int nBufLength ,
int nMinRange ,
int nMaxRange )
throws java.lang.Exception
{
if (nBufPos>=nBufLength)
throw new java.lang.Exception("impl_readAndCheckNextByte()\nEnd of buffer reached.");
int nByte = aBuffer[nBufPos] & 0xFF;
if (
(nByte < nMinRange) ||
(nByte > nMaxRange)
)
{
throw new java.lang.Exception("impl_readAndCheckNextByte()\nByte does not fit the specified range.");
}
return nByte;
}
//___________________________________________
public static void readAndCheckUTF8File(java.io.File aFile ,
java.lang.StringBuffer sBuffer)
throws java.io.IOException
{
java.io.FileInputStream aByteStream = new java.io.FileInputStream(aFile.getAbsolutePath());
byte[] aBuffer = new byte[4096];
int nReadCount = 0;
int nByteOrg_1 = 0;
int nByteOrg_2 = 0;
int nByteOrg_3 = 0;
int nByteOrg_4 = 0;
int nByte_1 = 0;
int nByte_2 = 0;
int nByte_3 = 0;
int nByte_4 = 0;
char nUTF8 = 0;
int i = 0;
int nEncodingType = 0;
java.lang.StringBuffer sLog = new java.lang.StringBuffer();
try
{
while((nReadCount=aByteStream.read(aBuffer))>0)
{
i=0;
while (i<nReadCount)
{
nByteOrg_1 = 0;
nByteOrg_2 = 0;
nByteOrg_3 = 0;
nByteOrg_4 = 0;
nByte_1 = 0;
nByte_2 = 0;
nByte_3 = 0;
nByte_4 = 0;
nUTF8 = 0;
nEncodingType = 0;
nByteOrg_1 = aBuffer[i++] & 0xFF;
nByte_1 = nByteOrg_1;
/*
Table 3-6. Well-Formed UTF-8 Byte Sequences
============================================================================
Nr. Code Points 1st Byte 2nd Byte 3rd Byte 4th Byte
============================================================================
01 U+ 0..U+ 7F 00..7F
02 U+ 80..U+ 7FF C2..DF 80..BF
03 U+ 800..U+ FFF E0 A0..BF 80..BF
04 U+ 1000..U+ CFFF E1..EC 80..BF 80..BF
05 U+ D000..U+ D7FF ED 80..9F 80..BF
06 U+ E000..U+ FFFF EE..EF 80..BF 80..BF
07 U+ 10000..U+ 3FFFF F0 90..BF 80..BF 80..BF
08 U+ 40000..U+ FFFFF F1..F3 80..BF 80..BF 80..BF
09 U+100000..U+10FFFF F4 80..8F 80..BF 80..BF
*/
// ------------------------------------------------------------
// 01
// 1 byte: 0xxxxxxx
// ------------------------------------------------------------
if (
(nByteOrg_1 >= 0x00) &&
(nByteOrg_1 <= 0x7F)
)
{
nEncodingType = 1;
nUTF8 = (char)nByte_1;
}
// ------------------------------------------------------------
// 02
// 1 byte: 110xxxxx
// 2 byte: 101xxxxx
// ------------------------------------------------------------
else
if (
(nByteOrg_1 >= 0xC2) &&
(nByteOrg_1 <= 0xDF)
)
{
nEncodingType = 2;
nByteOrg_2 = FileHelper.impl_readAndCheckNextByte(aBuffer, i++, nReadCount, 0x80, 0xBF);
nByte_1 = nByteOrg_1-0xC2;
nByte_2 = nByteOrg_2-0x80;
nUTF8 = FileHelper.impl_convertBytesToChar(0,0,nByte_1, nByte_2);
}
// ------------------------------------------------------------
// 03
// 1 byte: 11100000
// 2 byte: 101xxxxx
// 3 byte: 10xxxxxx
// ------------------------------------------------------------
else
if (nByteOrg_1 == 0xE0)
{
nEncodingType = 3;
nByteOrg_2 = FileHelper.impl_readAndCheckNextByte(aBuffer, i++, nReadCount, 0xA0, 0xBF);
nByteOrg_3 = FileHelper.impl_readAndCheckNextByte(aBuffer, i++, nReadCount, 0x80, 0xBF);
nByte_2 = nByteOrg_2-0xA0;
nByte_3 = nByteOrg_3-0x80;
nUTF8 = FileHelper.impl_convertBytesToChar(0,0,nByte_2, nByte_3);
}
// ------------------------------------------------------------
// 04
// 1 byte: 111xxxxx
// 2 byte: 10xxxxxx
// 3 byte: 10xxxxxx
// ------------------------------------------------------------
else
if (
(nByteOrg_1 >= 0xE1) &&
(nByteOrg_1 <= 0xEC)
)
{
nEncodingType = 4;
nByteOrg_2 = FileHelper.impl_readAndCheckNextByte(aBuffer, i++, nReadCount, 0x80, 0xBF);
nByteOrg_3 = FileHelper.impl_readAndCheckNextByte(aBuffer, i++, nReadCount, 0x80, 0xBF);
nByte_1 = nByteOrg_1-0xE1;
nByte_2 = nByteOrg_2-0x80;
nByte_3 = nByteOrg_3-0x80;
nUTF8 = FileHelper.impl_convertBytesToChar(0,nByte_1, nByte_2, nByte_3);
}
// ------------------------------------------------------------
// 05
// 1 byte: 11101101
// 2 byte: 10xxxxxx
// 3 byte: 10xxxxxx
// ------------------------------------------------------------
else
if (nByteOrg_1 == 0xED)
{
nEncodingType = 5;
nByteOrg_2 = FileHelper.impl_readAndCheckNextByte(aBuffer, i++, nReadCount, 0x80, 0x9F);
nByteOrg_3 = FileHelper.impl_readAndCheckNextByte(aBuffer, i++, nReadCount, 0x80, 0xBF);
nByte_2 = nByteOrg_2-0x80;
nByte_3 = nByteOrg_3-0x80;
nUTF8 = FileHelper.impl_convertBytesToChar(0,0, nByte_2, nByte_3);
}
// ------------------------------------------------------------
// 06
// 1 byte: 1110111x
// 2 byte: 10xxxxxx
// 3 byte: 10xxxxxx
// ------------------------------------------------------------
else
if (
(nByteOrg_1 >= 0xEE) &&
(nByteOrg_1 <= 0xEF)
)
{
nEncodingType = 6;
nByteOrg_2 = FileHelper.impl_readAndCheckNextByte(aBuffer, i++, nReadCount, 0x80, 0xBF);
nByteOrg_3 = FileHelper.impl_readAndCheckNextByte(aBuffer, i++, nReadCount, 0x80, 0xBF);
nByte_1 = nByteOrg_1-0xEE;
nByte_2 = nByteOrg_2-0x80;
nByte_3 = nByteOrg_3-0x80;
nUTF8 = FileHelper.impl_convertBytesToChar(0,nByte_1, nByte_2, nByte_3);
}
// ------------------------------------------------------------
// 07
// 1 byte: 11110000
// 2 byte: 1001xxxx
// 3 byte: 10xxxxxx
// 4 byte: 10xxxxxx
// ------------------------------------------------------------
else
if (nByteOrg_1 == 0xF0)
{
nEncodingType = 7;
nByteOrg_2 = FileHelper.impl_readAndCheckNextByte(aBuffer, i++, nReadCount, 0x90, 0xBF);
nByteOrg_3 = FileHelper.impl_readAndCheckNextByte(aBuffer, i++, nReadCount, 0x80, 0xBF);
nByteOrg_4 = FileHelper.impl_readAndCheckNextByte(aBuffer, i++, nReadCount, 0x80, 0xBF);
nByte_2 = nByteOrg_2-0x90;
nByte_3 = nByteOrg_3-0x80;
nByte_4 = nByteOrg_4-0x80;
nUTF8 = FileHelper.impl_convertBytesToChar(0, nByte_2, nByte_3, nByte_4);
}
// ------------------------------------------------------------
// 08
// 1 byte: 111100xx
// 2 byte: 10xxxxxx
// 3 byte: 10xxxxxx
// 3 byte: 10xxxxxx
// ------------------------------------------------------------
else
if (
(nByteOrg_1 >= 0xF1) &&
(nByteOrg_1 <= 0xF3)
)
{
nEncodingType = 8;
nByteOrg_2 = FileHelper.impl_readAndCheckNextByte(aBuffer, i++, nReadCount, 0x80, 0xBF);
nByteOrg_3 = FileHelper.impl_readAndCheckNextByte(aBuffer, i++, nReadCount, 0x80, 0xBF);
nByteOrg_4 = FileHelper.impl_readAndCheckNextByte(aBuffer, i++, nReadCount, 0x80, 0xBF);
nByte_1 = nByteOrg_1-0xF1;
nByte_2 = nByteOrg_2-0x80;
nByte_3 = nByteOrg_3-0x80;
nByte_4 = nByteOrg_4-0x80;
nUTF8 = FileHelper.impl_convertBytesToChar(nByte_1, nByte_2, nByte_3, nByte_4);
}
// ------------------------------------------------------------
// 09
// 1 byte: 11110100
// 2 byte: 10xxxxxx
// 3 byte: 10xxxxxx
// 4 byte: 10xxxxxx
// ------------------------------------------------------------
else
if (nByteOrg_1 == 0xF0)
{
nEncodingType = 9;
nByteOrg_2 = FileHelper.impl_readAndCheckNextByte(aBuffer, i++, nReadCount, 0x80, 0xBF);
nByteOrg_3 = FileHelper.impl_readAndCheckNextByte(aBuffer, i++, nReadCount, 0x80, 0xBF);
nByteOrg_4 = FileHelper.impl_readAndCheckNextByte(aBuffer, i++, nReadCount, 0x80, 0xBF);
nByte_2 = nByteOrg_2-0x80;
nByte_3 = nByteOrg_3-0x80;
nByte_4 = nByteOrg_4-0x80;
nUTF8 = FileHelper.impl_convertBytesToChar(0, nByte_2, nByte_3, nByte_4);
}
// wrong encoding ?
else
{
throw new java.lang.Exception("Non well formed UTF-8 encoding.");
}
sBuffer.append(nUTF8);
// -> DEBUG !
FileHelper.logEncodingData(sLog, nUTF8, nByteOrg_1, nByteOrg_2, nByteOrg_3, nByteOrg_4, nByte_1, nByte_2, nByte_3, nByte_4, nEncodingType);
// <- DEBUG !
}
}
}
catch(java.lang.Throwable ex)
{
// -> DEBUG !
FileHelper.logEncodingData(sLog, nUTF8, nByteOrg_1, nByteOrg_2, nByteOrg_3, nByteOrg_4, nByte_1, nByte_2, nByte_3, nByte_4, nEncodingType);
java.io.File aDir = new java.io.File(aFile.getParent());
java.lang.String sDump = aFile.getName();
java.io.File aDump = FileHelper.createUniqueFile(aDir, sDump, "dump");
FileHelper.writeEncodedBufferToFile(aDump, "UTF-8", false, sLog);
// <- DEBUG !
java.lang.String sMsg = "File '"+aFile.getPath()+"' is not encoded right as UTF-8.";
throw new java.io.IOException(sMsg);
}
aByteStream.close();
}
//___________________________________________
/** writes the given string buffer into the specified file
* using the specified encoding.
*
* Further it can be set, if the file should be expanded
* or replaced by this new string buffer.
*
* @param aFile
* must point to a system file. It can already exist!
* e.g.: "c:\temp\test.txt"
* "/tmp/test.txt"
*
* @param sEncoding
* will be used to encode the string content inside the file.
* e.g.: "UTF8"
*
* @param bAppend
* specify if an already existing file will be
* expanded or replaced.
*
* @param sBuffer
* the new string content for this file.
*/
public static void writeEncodedBufferToFile(java.io.File aFile ,
java.lang.String sEncoding,
boolean bAppend ,
java.lang.StringBuffer sBuffer )
throws java.io.IOException
{
java.io.FileOutputStream aByteStream = new java.io.FileOutputStream(aFile.getAbsolutePath(), bAppend);
java.io.OutputStreamWriter aEncodedWriter = new java.io.OutputStreamWriter(aByteStream, sEncoding);
java.lang.String sTemp = sBuffer.toString();
aEncodedWriter.write(sTemp, 0, sTemp.length());
aEncodedWriter.flush();
aEncodedWriter.close();
if (!aFile.exists())
throw new java.io.IOException("File \""+aFile.getAbsolutePath()+"\" not written correctly.");
}
}
|