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
|
## Copyright (C) 2009-2018 Philip Nienhuis
##
## This program is free software; you can redistribute it and/or modify it under
## the terms of the GNU General Public License as published by the Free Software
## Foundation; either version 3 of the License, or (at your option) any later
## version.
##
## This program is distributed in the hope that it will be useful, but WITHOUT
## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
## details.
##
## You should have received a copy of the GNU General Public License along with
## this program; if not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn {Function File} {[ @var{retval}, @var{intfs}, @var{ljars} ]} = chk_spreadsheet_support ()
## @deftypefnx {Function File} {[ @var{retval}, @var{intfs}, @var{ljars} ]} = chk_spreadsheet_support ( @var{path_to_jars} )
## @deftypefnx {Function File} {[ @var{retval}, @var{intfs}, @var{ljars} ]} = chk_spreadsheet_support ( @var{path_to_jars}, @var{debug_level} )
## @deftypefnx {Function File} {[ @var{retval}, @var{intfs}, @var{ljars} ]} = chk_spreadsheet_support ( @var{path_to_jars}, @var{debug_level}, @var{path_to_ooo} )
## Check Octave environment for spreadsheet I/O support, report any problems,
## and optionally add or remove Java class libs for spreadsheet support.
##
## chk_spreadsheet_support first checks ActiveX (native MS-Excel); then
## Java JRE presence, then Java support (if builtin); then checks existing
## javaclasspath for Java class libraries (.jar files) needed for various
## Java-based spreadsheet I/O interfaces. If requested chk_spreadsheet_support
## will try to add the relevant Java class libs to the dynamic javaclasspath.
## chk_spreadsheet_support remembers which Java class libs it has added to
## the javaclasspath; optionally it can unload them as well.
##
## @var{path_to_jars} - relative or absolute path name to subdirectory
## containing these classes. TAKE NOTICE: /forward/ slashes are needed!
## chk_spreadsheet_support() will recurse into at most two subdir levels;
## if the Java class libs are scattered across deeper subdir levels or
## further apart in the file system, multiple calls to
## chk_spreadsheet_support may be required. @var{path_to_jars} can be []
## or '' if no class libs need to be added to the javaclasspath.
##
## @var{path_to_ooo} - installation directory of OpenOffice.org (again with
## /forward/ slashes). Usually that is something like (but no guarantees):
## @table @asis
## - Windows: C:/Program Files/OpenOffice.org or
## C:/Program Files (X86)/LibreOffice
##
## - *nix: /usr/lib/ooo or /opt/libreoffice
##
## - Mac OSX: ?????
##
## IMPORTANT: @var{path_to_ooo} should be such that both:
## @example
## @group
## 1. PATH_TO_OOO/program/
## and
## 2. PATH_TO_OOO/ure/.../ridl.jar
## resolve OK.
## @end group
## @end example
## @end table
##
## (Note that LibreOffice/OOo should match the bit width (32bit or 64bit) of the
## Java version Octave was built with.)
##
## @var{debug_level}: (integer) between [0 (no output) .. 3 (full output]
## @table @asis
## @indent
## @item 0
## No debug output is generated.
##
## @item 1
## Only proper operation of main interface groups (COM, Java) is shown.
## If @var{path_to_jars} and/or @var{path_to_ooo} was supplied,
## chk_spreadsheet_support indicates whether it could find the required
## Java class libs for all interfaces
##
## @item 2
## Like 1, proper working of individual implemented Java-based interfaces is
## shown as well. If @var{path_to_jars} and/or @var{path_to_ooo} was supplied,
## chk_spreadsheet_support indicates for each individual Java-based interface
## whether it could add the required Java class libs.
##
## @item 3
## Like 2, also presence of individual javaclass libs in javaclasspath is
## indicated. If @var{path_to_jars} and/or @var{path_to_ooo} was supplied,
## chk_spreadsheet_support reports for each individual Java-based interface
## which required Java class libs it could find and add to the javaclasspath.
##
## @item -1 (or any negative number)
## Remove all directories and Java class libs that chk_spreadsheet_support
## added to the javaclasspath. If @var{debug_level} < 1 report number of
## removed javclasspath entries; if @var{debug_level} < 2 report each
## individual removed entry.
## @noindent
## @end table
##
## Output:
## @var{retval} = 0: only spreadsheet support for OOXML & ODS 1.2
## and read support for gnumeric present through OCT interface, or
## @var{retval} <> 0: At least one read/write spreadsheet I/O
## interface found based on external software.
## RETVAL will be set to the sum of values for found interfaces:
## @example
## 0 = OCT (Native Octave)
## (read/write support for .xlsx, .ods and .gnumeric)
## ----------- XLS (Excel) interfaces: ----------
## 1 = COM (ActiveX / Excel) (any file format supported by MS-Excel)
## 2 = POI (Java / Apache POI) (Excel 97-2003 = BIFF8)
## 4 = POI+OOXML (Java / Apache POI) (Excel 2007-2010 = OOXML)
## 8 = JXL (Java / JExcelAPI) (Excel 95-read and Excel-97-2003-r/w)
## 16 = OXS (Java / OpenXLS) (Excel 97-2003)
## ---- ODS (OpenOffice.org Calc) interfaces ----
## 32 = OTK (Java/ ODF Toolkit) (ODS 1.2)
## 64 = JOD (Java / jOpenDocument) (.sxc (old OOo)-read, ODS 1.2)
## ------------------ XLS & ODS: ----------------
## 0 = OOXML / ODS read/write-, gnumeric read support (built-in)
## 128 = UNO (Java/UNO bridge - LibreOffice / OOs) (any format
## supported by LibreOffice/OOo)
## @end example
##
## @var{INTFS}: listing of supported spreadsheet interfaces. The OCT
## interface is always supported.
##
## @var{ljars}: listing of full paths of Java class libs and directories
## that chk_spreadsheet_support has added to the javaclasspath.
##
## @end deftypefn
## Author: Philip Nienhuis <prnienhuis@users.sf.net>
## Created 2010-11-03 for Octave
function [ retval, s_interfaces, jars_loaded ] = chk_spreadsheet_support (path_to_jars, dbug, path_to_ooo)
## Keep track of which Java class libs were loaded
persistent loaded_jars; ## Java .jar class libs added to
## javaclasspath by this func
persistent sinterfaces; ## Interfaces found to be supported
sinterfaces = {"OCT"};
jcp = [];
retval = 0;
if (nargin < 3)
path_to_ooo= "";
endif
if (nargin < 2)
dbug = 0;
endif
HAVE_JAVA = __have_feature__ ("JAVA");
if (dbug < 0 && HAVE_JAVA)
## Remove loaded Java class libs from the javaclasspath
if (dbug < -2 && numel (loaded_jars))
printf ("Removing javaclasspath entries loaded by chk_spreadsheet_support:\n");
endif
for ii=1:numel (loaded_jars)
javarmpath (loaded_jars{ii});
if (dbug < -2)
printf ("%s\n", loaded_jars{ii});
endif
endfor
if (dbug < -1)
printf ("%d jars removed from javaclasspath\n", numel (loaded_jars));
endif
loaded_jars = {};
## Re-assess supported interfaces
sinterfaces = {"OCT"};
retval = 0;
if (ismember ("COM", sinterfaces))
sinterfaces = [sinterfaces, "COM"];
retval = 1;
endif
jars_loaded = loaded_jars;
s_interfaces = sinterfaces;
return
elseif (dbug > 0)
printf ("\n");
endif
interfaces = {"COM", "POI", "POI+OOXML", "JXL", "OXS", "OTK", "JOD", "UNO", "OCT"};
## Order = vital
## Just mention OCT interface
if (dbug > 1)
printf ("(OCT interface... OK, included in io package)\n\n");
endif
## Check if MS-Excel COM ActiveX server runs. Only needed on Windows systems
if (ispc)
if (__COM_chk_sprt__ (dbug))
retval = retval + 1;
sinterfaces = [ sinterfaces, "COM" ];
endif
endif
## Check Java
if (dbug > 1)
printf ("1. Checking Octave's Java support... ");
endif
if (! HAVE_JAVA)
## Nothing to do here anymore
if (abs (dbug) > 1)
printf ("none.\nThis Octave has no built-in Java support. Skipping Java checks\n");
if (! retval)
printf ("Only ODS 1.2 (.ods) & OOXML (.xlsx) & .gnumeric r/w support present\n");
endif
endif
return
elseif (dbug > 1)
printf ("OK.\n");
endif
if (dbug > 1)
printf ("2. Checking Java dependencies...\n");
endif
if (dbug > 1)
printf (" Checking Java JRE presence.... ");
endif
## Try if Java is installed at all
if (ispc)
## FIXME the following call fails on 64-bit Windows
jtst = (system ("java -version 2> nul"));
else
jtst = (system ("java -version 2> /dev/null"));
endif
if (dbug)
if (jtst)
printf ("Apparently no Java JRE installed.\n");
if (! retval)
printf ("\nOnly ODS 1.2 (.ods) & OOXML (.xlsx) r/w support & .gnumeric read support present\n");
endif
return;
else
if (dbug > 1)
printf ("OK, found one.\n");
endif
endif
endif
try
## OK sufficient info to investigate further
[tmp1, jcp] = __chk_java_sprt__ (dbug);
if (tmp1)
if (dbug > 1)
## Check JVM virtual memory settings
jrt = javaMethod ("getRuntime", "java.lang.Runtime");
jmem = jrt.maxMemory ();
## Some Java versions return jmem as octave_value => convert to double
if (! isnumeric (jmem))
jmem = jmem.doubleValue();
endif
jmem = int16 (jmem/1024/1024);
printf (" Maximum JVM memory: %5d MiB; ", jmem);
if (jmem < 400)
printf ("should better be at least 400 MB!\n");
printf (" Hint: adapt setting -Xmx in file 'java.opts' (supposed to be here:)\n");
printf (" %s\n", [matlabroot filesep "share" filesep "octave" filesep "packages" filesep "java-<version>" filesep "java.opts\n"]);
else
printf ("sufficient.\n");
endif
endif
endif
catch
## No Java support
tmp1 = 0;
end_try_catch
if (! tmp1)
## We can return as for below code Java is required.
if (dbug > 1)
printf ("No Java support found.\n");
if (! retval)
printf ("Only ODS 1.2 (.ods) & OOXML (.xlsx) r/w support & .gnumeric read support present\n");
endif
endif
return
endif
if (dbug)
printf ("Checking javaclasspath for .jar class libraries needed for spreadsheet I/O...:\n");
endif
## FIXME Below only the javaclasspath is checked. Some unsupported .jar
## versions can only be detected after they've been added to the
## javaclasspath. That happens lower in the code; so shortly after that
## we run another check for version and if needed, call the below
## interface-specific functions again to remove the offending jar from
## the javaclasspath. All in all messy, but there's no other way yet.
## Try Java & Apache POI
[chk, missing1, missing2] = __POI_chk_sprt__ (jcp, dbug);
if (chk)
sinterfaces = [ sinterfaces, "POI" ];
retval += 2;
if (isempty (missing2))
sinterfaces = [ sinterfaces, "POI+OOXML" ];
retval += 4;
endif
endif
## Try Java & JExcelAPI
[chk, missing3] = __JXL_chk_sprt__ (jcp, dbug);
if (chk)
retval = retval + 8;
sinterfaces = [ sinterfaces, "JXL" ];
endif
## Try Java & OpenXLS
[chk, missing4] = __OXS_chk_sprt__ (jcp, dbug);
## Beware of unsupported openxls jar versions
if (isempty (missing4) && chk)
retval = retval + 16;
sinterfaces = [ sinterfaces, "OXS" ];
elseif (chk < 0)
## Probably unsupported jar versions. Avoid loading it
missing4 = {};
endif
## Try Java & ODF toolkit
[chk, missing5] = __OTK_chk_sprt__ (jcp, dbug);
## Beware of unsupported odfdom jar versions
if (isempty (missing5) && chk)
retval = retval + 32;
sinterfaces = [ sinterfaces, "OTK" ];
elseif (chk < 0)
## Probably unsupported jar versions. Avoid reloading it
missing5 = {};
endif
## Try Java & jOpenDocument
[chk, missing6] = __JOD_chk_sprt__ (jcp, dbug);
if (isempty (missing6) && chk)
retval = retval + 64;
sinterfaces = [ sinterfaces, "JOD" ];
endif
## Try Java & UNO
[chk, missing0] = __UNO_chk_sprt__ (jcp, dbug);
if (isempty (missing0) && chk)
retval = retval + 128;
sinterfaces = [ sinterfaces, "UNO" ];
endif
## ----------Add missing jars for Java interfaces except UNO--------------------
missing = [missing1 missing2 missing3 missing4 missing5 missing6];
jars_complete = isempty (missing);
if (dbug)
if (jars_complete)
printf ("All Java-based interfaces (save UNO) fully supported.\n\n");
else
printf ("Some class libs lacking yet...\n\n");
endif
endif
if (! jars_complete && nargin > 0 && ! isempty (path_to_jars))
## Add missing jars to javaclasspath. Assume they're all in the same place
## FIXME: add checks for proper odfdom && OpenXLS jar versions
if (dbug)
printf ("Trying to add missing java class libs to javaclasspath...\n");
endif
if (! ischar (path_to_jars))
printf ("Path expected for arg # 1\n");
return;
endif
## First combine all entries
targt = numel (missing);
## For each interface, search tru list of missing entries
for ii=1:6 ## Adapt number in case of future new interfaces
tmpm = eval ([ "missing" char(ii + "0") ]);
tmpmcnt = numel (tmpm);
if (tmpmcnt)
for jj=1:numel (tmpm)
if (iscellstr (tmpm{jj}))
rtval = 0; kk = 1;
while (kk <= numel (tmpm{jj}) && isnumeric (rtval))
jtmpm = tmpm{jj}{kk};
rtval = add_jars_to_jcp (path_to_jars, jtmpm, dbug);
++kk;
endwhile
else
rtval = add_jars_to_jcp (path_to_jars, tmpm{jj}, dbug);
endif
## Here's the moment to run checks for unsupported .jar versions.
switch ii
case 2 ## Apache POI, for POI >= 3.15
## Check if common-collections4 is req'd (only for POI >= 3.15)
try
poiv = javaObject ("org.apache.poi.Version").getVersion();
if (compare_versions (poiv, "3.14", "<=") &&
strncmpi (tmpm{jj}, "commons-collections4", 8))
--targt;
--tmpmcnt;
endif
catch
## Happens when POI hasn't been completely loaded yet.
## No action needed
end_try_catch
case 4 ## OpenXLS
chk = __OXS_chk_sprt__ (javaclasspath, dbug);
if (chk < 0)
rtval = 0;
endif
case 5 ## ODFDOM
chk = __OTK_chk_sprt__ (javaclasspath, dbug);
if (chk < 0)
rtval = 0;
endif
otherwise
endswitch
if (ischar (rtval))
--targt;
--tmpmcnt;
if (isempty (loaded_jars))
## Make sure we get a cellstr array
loaded_jars = {rtval};
else
loaded_jars = [ loaded_jars; rtval ];
endif
endif
endfor
if (! tmpmcnt)
retval = retval + 2^ii;
endif
endif
if (! tmpmcnt && ! any (ismember (sinterfaces, interfaces{ii+1})))
## Add interface to list. COM = 1, so start at #2 (add 1 to ii)
sinterfaces = [ sinterfaces, interfaces{ii+1} ];
## Consider POI+OOXML i.c.o. adding plain POI
if (ii == 1 && isempty (missing2))
## Apparently only POI itself missed jars, POI+OOXML was complete
sinterfaces = [ sinterfaces, interfaces{ii+2} ];
retval = retval + 4;
endif
endif
endfor
if (dbug)
if (targt)
printf ("Some class libs still lacking...\n\n");
endif
endif
endif
## ----------UNO (LO / OOo) ---------- (still experimental)
## If requested, try to add UNO stuff to javaclasspath
ujars_complete = isempty (missing0);
if ((! ujars_complete) && nargin > 0 && (! isempty (path_to_ooo)))
if (dbug)
printf ("\nTrying to add missing program subdir & UNO Java class libs to javaclasspath...\n");
endif
if (! ischar (path_to_ooo))
printf ("Path expected for arg # 3\n");
return;
endif
if (dbug && ! isempty (strfind (path_to_ooo, '\')))
printf ("\n(forward slashes are preferred over backward slashes in path)\n");
endif
## Add missing jars to javaclasspath.
## 1. Find out how many are still lacking
targt = numel (missing0);
## 2. Find where URE is located. Watch out because
## case of ./ure is unknown
uredir = get_dir_ (path_to_ooo, "ure");
new_lo = 0;
if (isempty (uredir))
## In newer LO, java jars live in <path_to_ooo>/program/classes
uredir = get_dir_ ([path_to_ooo filesep "program"], "classes");
new_lo = 1;
endif
if (isempty (uredir))
if (dbug > 1)
warning ("Wrong path to OOo/LO, or incomplete OOo/LO installation\n");
endif
return
endif
## 3. Most jars live in ./ure/share/java or ./ure/java. Construct unojarpath
if (new_lo)
## Newer LO version? <LO>/progam/classes has no "java" subdir
unojarpath = uredir;
else
unojardir = get_dir_ (uredir, "share");
if (isempty (unojardir))
tmp = uredir;
else
tmp = unojardir;
endif
unojarpath = get_dir_ (tmp, "java");
endif
## 4. Now search for UNO jars. There may be two special cases A. and B.
for ii=1:numel (missing0)
if (strcmpi (missing0{ii}, "program"))
## A. Add program dir (= where soffice or soffice.exe or ooffice resides)
programdir = [path_to_ooo filesep missing0{ii}];
if (exist (programdir, "dir"))
if (dbug > 2)
printf (" Found %s, adding it to javaclasspath ... ", programdir);
endif
try
javaaddpath (programdir);
targt -= targt;
if (dbug > 2)
printf ("OK\n");
endif
if (isempty (loaded_jars))
loaded_jars = { programdir };
else
loaded_jars = [ loaded_jars; programdir];
endif
catch
if (dbug > 2)
printf ("FAILED\n");
endif
end_try_catch
else
if (dbug > 2)
printf ("Suggested OpenOffice.org install directory: %s not found!\n", ...
path_to_ooo);
return
endif
endif
else
## Rest of missing UNO entries
if (new_lo)
## Search in <LO>/program/classes
sfile = dir ([unojarpath filesep missing0{ii} "*"]);
jfile = [unojarpath filesep sfile.name];
elseif (strcmpi (missing0{ii}, "unoil"))
## B. Special case as unoil.jar usually resides in
## ./Basis<something>/program/classes
## Find out the exact name of Basis.....
basisdirlst = dir ([path_to_ooo filesep "?asis" "*"]);
jj = 1;
if (numel (basisdirlst) > 0)
while (jj <= size (basisdirlst, 1) && jj > 0)
basisdir = basisdirlst(jj).name;
if (basisdirlst(jj).isdir)
basisdir = basisdirlst(jj).name;
jj = 0;
else
jj = jj + 1;
endif
endwhile
basisdir = [path_to_ooo filesep basisdir ];
else
basisdir = path_to_ooo;
endif
basisdirentries = {"program", "classes"};
tmp = basisdir; jj=1;
while (! isempty (tmp) && jj <= numel (basisdirentries))
tmp = get_dir_ (tmp, basisdirentries{jj});
jj = jj + 1;
endwhile
## sfile below = struct, not a string
sfile = dir ([ tmp filesep missing0{ii} "*" ]);
jfile = [tmp filesep sfile.name];
else
## A "normal" case. sfile = struct, not a string
sfile = dir ([unojarpath filesep missing0{ii} "*"]);
jfile = [unojarpath filesep sfile.name];
endif
## Path found, now try to add jar
if (isempty (sfile))
if (dbug > 2)
printf (" ? %s<...>.jar ?\n", missing0{ii});
endif
else
if (dbug > 2)
printf (" Found %s, adding it to javaclasspath ... ", sfile.name);
endif
try
javaaddpath (jfile);
targt -= targt;
if (dbug > 2)
printf ("OK\n");
endif
if (isempty (loaded_jars))
loaded_jars = {jfile};
else
loaded_jars = [ loaded_jars; jfile ];
endif
catch
if (dbug > 2)
printf ("FAILED\n");
endif
end_try_catch
endif
endif
endfor
## Check if all entries have been found
if (! targt)
## Yep
retval = retval + 128;
sinterfaces = [sinterfaces, "UNO"];
endif
if (dbug)
if (targt)
printf ("Some UNO class libs still lacking...\n\n");
else
printf ("UNO interface supported now.\n\n");
endif
endif
endif
jars_loaded = loaded_jars;
s_interfaces = sinterfaces;
endfunction
function [ ret_dir ] = get_dir_ (base_dir, req_dir)
## Construct path to subdirectory req_dir in a subdir tree, aimed
## at taking care of proper case (esp. for *nix) of existing subdir
## in the result. Case of input var req_dir is ignored on purpose.
ret_dir = '';
## Get list of directory entries
ret_dir_list = dir (base_dir);
## Find matching entries
idx = find (strcmpi ({ret_dir_list.name}, req_dir));
## On *nix, several files and subdirs in one dir may have the same name as long as case differs
if (! isempty (idx))
ii = 1;
while (! ret_dir_list(idx(ii)).isdir)
ii = ii + 1;
if (ii > numel (idx))
return;
endif
endwhile
## If we get here, a dir with proper name has been found. Construct path
ret_dir = [ base_dir filesep ret_dir_list(idx(ii)).name ];
endif
endfunction
function [ retval ] = add_jars_to_jcp (path_to_jars, jarname, dbug)
## Given a subdirectory path and a (sufficiently unique part of a) Java class
## lib file (.jar) name, checks if it can find the file in the subdir and
## tries to add it to the javaclasspath. Only two more subdir levels below the
## path_to_jar subdir will be searched to limit excessive search time.
## If found, return the full pathname
retval = 0;
## Search subdirs. Max search depth = 2 to avoid undue search time
file = rfsearch (path_to_jars, jarname, 2);
if (isempty (file))
## Still not found...
if (dbug > 2)
printf (" ? %s<...>.jar ?\n", jarname);
endif
elseif (stat ([path_to_jars filesep file]).size < 1024)
## Probably too small for a jar => apparently a symlink
if (dbug > 2)
printf (" File %s is probably a symlink ... \n", file);
endif
else
## FIXME: cache subdir in file name to speed up search
if (dbug > 2)
printf (" Found %s, adding it to javaclasspath ... ", file);
endif
try
javaaddpath ([path_to_jars filesep file]);
if (dbug > 2)
printf ("OK\n");
endif
retval = [path_to_jars filesep file];
catch
if (dbug > 2)
printf ("FAILED\n");
endif
end_try_catch
endif
endfunction
|
