1 |
############################################## |
## --------------------------------------------------------------------------- |
2 |
# |
## $Id$ |
3 |
# $Id$ |
## --------------------------------------------------------------------------- |
4 |
# |
## $Log$ |
5 |
# $Log$ |
## Revision 1.14 2003/02/22 17:13:55 jonen |
6 |
# Revision 1.1 2002/11/29 04:49:20 joko |
## + added function 'childObject2string()' to encode 'child'-references to option related string |
7 |
# + initial check-in |
## + use new option at 'expand()' for replacing 'childObject2string' |
8 |
# |
## |
9 |
# Revision 1.1 2002/10/10 03:26:00 cvsjoko |
## Revision 1.13 2003/02/21 01:48:50 joko |
10 |
# + new |
## renamed core function |
11 |
# |
## |
12 |
############################################## |
## Revision 1.12 2003/02/20 22:45:19 joko |
13 |
|
## fix regarding new deep_copy |
14 |
|
## |
15 |
|
## Revision 1.11 2003/02/20 21:13:54 joko |
16 |
|
## - removed implementation of deep_copy2 - get this from the Pitonyak namespace (now cloned to repository) |
17 |
|
## |
18 |
|
## Revision 1.10 2003/02/20 20:48:00 joko |
19 |
|
## - refactored lots of code to Data::Code::Ref |
20 |
|
## + alternative 'deep_copy' implementation |
21 |
|
## |
22 |
|
## Revision 1.9 2003/02/18 19:35:56 joko |
23 |
|
## +- modified 'sub refexpr2perlref': now can get the $delimiter passed, too |
24 |
|
## |
25 |
|
## Revision 1.8 2003/02/09 05:10:56 joko |
26 |
|
## + minor update |
27 |
|
## |
28 |
|
## Revision 1.7 2003/01/19 03:26:59 joko |
29 |
|
## + added 'sub deep_copy' - refactored from libp |
30 |
|
## + add 'sub merge' - exported from CPAN's 'Hash::Merge' |
31 |
|
## |
32 |
|
## Revision 1.6 2002/12/23 11:27:53 jonen |
33 |
|
## + changed behavior WATCH! |
34 |
|
## |
35 |
|
## Revision 1.5 2002/12/16 19:57:54 joko |
36 |
|
## + option 'init' |
37 |
|
## |
38 |
|
## Revision 1.4 2002/12/05 13:56:49 joko |
39 |
|
## - var_deref |
40 |
|
## + expand - more sophisticated dereferencing with callbacks using Iterate |
41 |
|
## |
42 |
|
## Revision 1.3 2002/12/03 05:34:55 joko |
43 |
|
## + bugfix: now utilizing var_utf2iso from Data::Transform::Encode |
44 |
|
## |
45 |
|
## Revision 1.2 2002/12/01 04:44:07 joko |
46 |
|
## + code from Data::Transform::OO |
47 |
|
## |
48 |
|
## Revision 1.1 2002/11/29 04:49:20 joko |
49 |
|
## + initial check-in |
50 |
|
## |
51 |
|
## Revision 1.1 2002/10/10 03:26:00 cvsjoko |
52 |
|
## + new |
53 |
|
## --------------------------------------------------------------------------- |
54 |
|
|
55 |
|
|
56 |
package Data::Transform::Deep; |
package Data::Transform::Deep; |
60 |
|
|
61 |
require Exporter; |
require Exporter; |
62 |
our @ISA = qw( Exporter ); |
our @ISA = qw( Exporter ); |
63 |
our @EXPORT_OK = qw( |
our @EXPORT_OK = qw( |
64 |
&var_NumericalHashToArray |
&expand |
65 |
&var_deref |
&deep_copy |
66 |
&var_mixin |
&merge_to |
|
&getStructSlotByStringyAddress |
|
67 |
); |
); |
68 |
|
|
69 |
|
|
70 |
use attributes; |
use attributes; |
71 |
|
use Data::Dumper; |
72 |
|
use Iterate; |
73 |
|
|
74 |
|
use Pitonyak::DeepCopy; |
75 |
|
use Data::Transform::Encode qw( latin_to_utf8 latin_to_utf8_scalar utf8_to_latin utf8_to_latin_scalar ); |
76 |
|
use Data::Code::Ref qw( ref_slot ); |
77 |
|
|
78 |
sub var_NumericalHashToArray { |
sub numhash2list { |
79 |
my $vref = shift; |
my $vref = shift; |
80 |
#my $context = shift; |
#my $context = shift; |
81 |
if (ref $vref eq 'HASH') { |
if (ref $vref eq 'HASH') { |
91 |
} |
} |
92 |
$vref->{$_} = \@arr; |
$vref->{$_} = \@arr; |
93 |
} |
} |
94 |
var_NumericalHashToArray($vref->{$_}); |
numhash2list($vref->{$_}); |
95 |
} |
} |
96 |
# } else { |
# } else { |
97 |
# #$vref->{$_} = scalar2iso($vref->{$_}); |
# #$vref->{$_} = scalar2iso($vref->{$_}); |
101 |
} |
} |
102 |
|
|
103 |
|
|
104 |
sub var_deref { |
# FIXME: could this be refactored using expand? |
105 |
|
# btw: "expand": look at scripts@CPAN (System Administration): |
106 |
|
# there is a perl make with perl |
107 |
|
sub _var_deref_test { |
108 |
my $obj = shift; |
my $obj = shift; |
109 |
|
my $options = shift; |
110 |
my $result; |
my $result; |
111 |
if ((ref $obj) eq 'ARRAY') { |
if ((ref $obj) eq 'ARRAY') { |
112 |
foreach (@{$obj}) { |
foreach (@{$obj}) { |
113 |
my $ref = ref $_; |
my $ref = ref $_; |
114 |
if ($ref) { |
if ($ref) { |
115 |
push(@{$result}, var_deref($_)); |
push(@{$result}, var_deref($_, $options)); |
116 |
|
#undef $_; |
117 |
} else { |
} else { |
118 |
push(@{$result}, $_); |
#push(@{$result}, $_); |
119 |
|
push(@{$result}, deep_copy($_)); |
120 |
} |
} |
121 |
|
#undef $_ if $options->{destroy}; |
122 |
|
#$options->{destroy}->($_) if $options->{destroy}; |
123 |
} |
} |
124 |
|
# TODO: "} elsif (ref $obj eq 'HASH') { [...] } else { croak 'could not deref blah'; }" ??? |
125 |
} else { |
} else { |
126 |
foreach (keys %{$obj}) { |
foreach (keys %{$obj}) { |
127 |
my $key = $_; |
my $key = $_; |
128 |
my $ref = ref $obj->{$_}; |
my $ref = ref $obj->{$_}; |
129 |
if ($ref) { |
if ($ref) { |
130 |
$result->{$_} = var_deref($obj->{$_}); |
$result->{$_} = var_deref($obj->{$_}, $options); |
131 |
|
#undef $obj->{$_}; |
132 |
} else { |
} else { |
133 |
$result->{$_} = $obj->{$_}; |
#$result->{$_} = $obj->{$_}; |
134 |
|
$result->{$_} = deep_copy($obj->{$_}); |
135 |
} |
} |
136 |
|
#undef $obj->{$_} if $options->{destroy}; |
137 |
|
#$options->{destroy}->($obj->{$_}) if $options->{destroy}; |
138 |
} |
} |
139 |
} |
} |
140 |
|
#undef $obj if $options->{destroy}; |
141 |
|
$options->{cb_destroy}->($obj) if $options->{cb_destroy}; |
142 |
return $result; |
return $result; |
143 |
} |
} |
144 |
|
|
145 |
|
|
146 |
|
# convert values in hash to utf8 (and back) to be ready for (e.g.) encapsulation in XML |
147 |
|
# but still using the known latin locale stuff |
148 |
|
sub expand { |
149 |
|
|
150 |
|
my $obj = shift; |
151 |
|
my $options = shift; |
152 |
|
my $result; |
153 |
|
|
154 |
|
#print "ref: ", ref $obj, "\n"; |
155 |
|
|
156 |
|
if (ref $obj eq 'ARRAY') { |
157 |
|
|
158 |
|
IterArray @$obj, sub { |
159 |
|
my $item; |
160 |
|
# if current item is a reference ... |
161 |
|
if (ref $_[0]) { |
162 |
|
$item = $_[0]; |
163 |
|
# if $options->{childObj2string} is TRUE or STRING don't expand referenced object, |
164 |
|
# instead replace it by per option choosed string (default: o_<classname>_<ref type>_<guid> ) |
165 |
|
if ($item && $options->{childObj2string}) { |
166 |
|
$item = childObj2string($item, $options->{childObj2string}); |
167 |
|
} else { |
168 |
|
# ... expand structure recursively |
169 |
|
$item = expand($_[0], $options); |
170 |
|
} |
171 |
|
# destroy item via seperate callback method (a POST) if requested |
172 |
|
#$options->{cb}->{destroy}->($_[0]) if $options->{destroy}; |
173 |
|
|
174 |
|
# ... assume plain scalar |
175 |
|
} else { |
176 |
|
#$item = deep_copy($_[0]); |
177 |
|
$item = $_[0]; |
178 |
|
# conversions/encodings |
179 |
|
$item = latin_to_utf8_scalar($item) if ($item && $options->{utf8}); |
180 |
|
$item = utf8_to_latin_scalar($item) if ($item && $options->{to_latin}); |
181 |
|
} |
182 |
|
#push(@{$result}, $item) if $item; # use item only if not undef (TODO: make configurable via $options) |
183 |
|
push(@{$result}, $item); # use item in any case |
184 |
|
|
185 |
|
} |
186 |
|
|
187 |
|
} elsif (ref $obj eq 'CODE') { |
188 |
|
#print Dumper($obj); |
189 |
|
#exit; |
190 |
|
|
191 |
|
# TODO: "} elsif (ref $obj eq 'HASH') { [...] } else { croak 'could not deref blah'; }" ??? |
192 |
|
} elsif (ref $obj) { |
193 |
|
|
194 |
|
IterHash %$obj, sub { |
195 |
|
my $item; |
196 |
|
|
197 |
|
# if current item is a reference ... |
198 |
|
if (ref $_[1]) { |
199 |
|
$item = $_[1]; |
200 |
|
# if $options->{childObj2string} is TRUE or STRING don't expand referenced object, |
201 |
|
# instead replace it by per option choosed string (default: o_<classname>_<ref type>_<guid> ) |
202 |
|
if ($item && $options->{childObj2string} && !(ref $_[1] eq "ARRAY") && !(ref $_[1] eq "HASH")) { |
203 |
|
$item = childObj2string($item, $options->{childObj2string}); |
204 |
|
} else { |
205 |
|
# ... expand structure recursively |
206 |
|
$item = expand($_[1], $options); |
207 |
|
} |
208 |
|
# destroy item via seperate callback method (a POST) if requested |
209 |
|
#$options->{cb}->{destroy}->($_[1]) if $options->{destroy}; |
210 |
|
|
211 |
|
# ... assume plain scalar |
212 |
|
} else { |
213 |
|
#$item = deep_copy($_[1]); |
214 |
|
$item = $_[1]; |
215 |
|
# conversions/encodings |
216 |
|
$item = latin_to_utf8_scalar($item) if ($item && $options->{utf8}); |
217 |
|
$item = utf8_to_latin_scalar($item) if ($item && $options->{to_latin}); |
218 |
|
} |
219 |
|
#$result->{$_[0]} = $item if $item; # use item only if not undef (TODO: make configurable via $options) |
220 |
|
$result->{$_[0]} = $item; # use item in any case |
221 |
|
} |
222 |
|
|
223 |
|
} else { |
224 |
|
#die ("not a reference!"); |
225 |
|
$result = $obj; |
226 |
|
|
227 |
|
} |
228 |
|
|
229 |
|
# convert all values to utf8 (inside complex struct) |
230 |
|
# now done in core-item-callbacks via Greg London's "Iterate" from CPAN |
231 |
|
# latin_to_utf8($result) if ($options->{utf8}); |
232 |
|
|
233 |
|
# destroy persistent object from memory to be sure to get a fresh one next time |
234 |
|
#undef $obj if $options->{destroy}; |
235 |
|
#$options->{cb_destroy}->($obj) if $options->{cb_destroy}; |
236 |
|
#$options->{cb}->{destroy}->($obj) if $options->{destroy}; |
237 |
|
|
238 |
|
return $result; |
239 |
|
} |
240 |
|
|
241 |
|
|
242 |
|
|
243 |
my @indexstack; |
my @indexstack; |
244 |
sub var_traverse_mixin_update { |
sub _var_traverse_mixin_update_old { |
245 |
my $obj = shift; |
my $obj = shift; |
246 |
my $data = shift; |
my $data = shift; |
247 |
my $bool_recursion = shift; |
my $bool_recursion = shift; |
285 |
#return $result; |
#return $result; |
286 |
} |
} |
287 |
|
|
288 |
sub getStructSlotByStringyAddress { |
sub merge_to { |
289 |
my $var = shift; |
_hash2object(@_); |
290 |
my $indexstack_ref = shift; |
# TODO: |
291 |
my @indexstack = @{$indexstack_ref}; |
# re-implement using CPAN's "Iterate". |
292 |
my $joiner = '->'; |
} |
293 |
my @evlist; |
|
294 |
foreach (@indexstack) { |
|
295 |
my $elem; |
# todo: maybe do diff(s) here sometimes!? |
296 |
if ($_ =~ m/\d+/) { $elem = "[$_]"; } |
sub _hash2object { |
297 |
if ($_ =~ m/\D+/) { $elem = "{$_}"; } |
my $object = shift; |
298 |
push @evlist, $elem; |
my $data = shift; |
299 |
} |
my $options = shift; |
300 |
my $evstring = join($joiner, @evlist); |
|
301 |
$evstring = 'return $var->' . $evstring . ';'; |
#print "hash2object", "\n"; |
302 |
#print "ev: $evstring\n"; |
|
303 |
return eval($evstring); |
# "patch" needed 'cause php passes numerical-indexed-arrays as hash-tables, |
304 |
|
# this method corrects this |
305 |
|
numhash2list($data) if ($options->{php}); |
306 |
|
|
307 |
|
# utf8-conversion/-encoding (essential for I18N) |
308 |
|
var_utf2iso($data) if ($options->{utf8}); |
309 |
|
|
310 |
|
# get fresh object from database |
311 |
|
# todo: |
312 |
|
# - handle "locked" objects !!! |
313 |
|
# - check if already another update occoured (object-revisioning needed!) |
314 |
|
#my $obj = $self->getObject($oid); |
315 |
|
|
316 |
|
# mix changes into fresh object and save it back |
317 |
|
_hash2object_traverse_mixin($object, $data, 0, $options); |
318 |
|
|
319 |
|
# done in core mixin function? |
320 |
|
#$self->{storage}->update($obj); |
321 |
|
|
322 |
|
# we should "undef" some objects here to destroy them in memory and enforce reloading when used next time |
323 |
|
# simulate: |
324 |
|
#$self->{storage}->disconnect(); |
325 |
|
|
326 |
|
} |
327 |
|
|
328 |
|
# ------------------------------------ |
329 |
|
# core mixin function |
330 |
|
# TODO-FEATURE: make this possible in a reverse way: object is empty (no fields) and gets filled up by mixin-data |
331 |
|
|
332 |
|
# remember keys of structures we are traversing |
333 |
|
# this is a HACK: |
334 |
|
# - don't (!!!) "packageglobal" @indexstack |
335 |
|
# - it will lead to problems with parallelism! |
336 |
|
|
337 |
|
#my @indexstack; |
338 |
|
|
339 |
|
# traverse a deeply nested structure, mix in values from given hash, update underlying tangram-object |
340 |
|
sub _hash2object_traverse_mixin { |
341 |
|
my $object = shift; |
342 |
|
my $data = shift; |
343 |
|
my $bool_recursion = shift; |
344 |
|
my $options = shift; |
345 |
|
|
346 |
|
# clear our key - stack if we are called from user-code (non-recursively) |
347 |
|
@indexstack = () if (!$bool_recursion); |
348 |
|
|
349 |
|
my $classname = ref $object; |
350 |
|
# if ($classname) { |
351 |
|
# print STDERR "*****************", Dumper(Class::Tangram::attribute_types($classname)), "\n"; |
352 |
|
# } |
353 |
|
|
354 |
|
# parser: detected OBJECT (a Tangram one?) (reftype == HASH) (assume) |
355 |
|
# what's exactly done here? hmmm.... it works ;) |
356 |
|
# maybe a HACK: please try not to use "IntrHash"es, maybe this cannot handle them!!! |
357 |
|
# extend! check! |
358 |
|
|
359 |
|
#print attributes::reftype($object), "\n"; |
360 |
|
|
361 |
|
# V1 |
362 |
|
#if ((attributes::reftype($object) eq 'HASH') && (ref($object) ne 'HASH') && (ref($object) ne 'ARRAY')) { |
363 |
|
# V2 |
364 |
|
my $reftype = attributes::reftype($object); |
365 |
|
#print "reftype: '$reftype'", "\n"; |
366 |
|
if ($reftype eq 'HASH') { |
367 |
|
|
368 |
|
# print STDERR "===", "reftype: ", attributes::reftype($obj), "\n"; |
369 |
|
|
370 |
|
my @fields; |
371 |
|
# loop through fields of object (Tangram-object) |
372 |
|
@fields = keys %{$object}; |
373 |
|
|
374 |
|
# loop through fields of to.be.injected-data (arbitrary Perl-data-structure) |
375 |
|
@fields = keys %{$data} if $options->{init}; |
376 |
|
# @fields = keys %{$data} if $options->{mixin}; |
377 |
|
|
378 |
|
foreach (@fields) { |
379 |
|
my $field = $_; |
380 |
|
push @indexstack, $field; |
381 |
|
|
382 |
|
# determine type of object |
383 |
|
my $ref = ref $object->{$field}; |
384 |
|
# print STDERR "attrname: $_ ATTRref: $ref", "\n"; |
385 |
|
if ($ref) { |
386 |
|
_hash2object_traverse_mixin($object->{$field}, $data, 1, $options); |
387 |
|
} else { |
388 |
|
my $val = ref_slot($data, \@indexstack); |
389 |
|
|
390 |
|
#print Dumper($options); |
391 |
|
my $field_target = $field; |
392 |
|
if (my $pattern = $options->{pattern_strip_key}) { |
393 |
|
print "pattern: $pattern", "\n"; |
394 |
|
$field_target =~ s/$pattern//; |
395 |
|
print "field: $field_target", "\n"; |
396 |
|
} |
397 |
|
|
398 |
|
$object->{$field_target} = $val if defined $val; |
399 |
|
} |
400 |
|
pop @indexstack; |
401 |
|
} |
402 |
|
|
403 |
|
# save object to database ... |
404 |
|
# ... do an update if it already exists, do an insert if it doesn't |
405 |
|
# my $objectId = $self->{storage}->id($obj); |
406 |
|
# $logger->debug( __PACKAGE__ . "->saveObjectFromHash_traverse_mixin_update( object $obj objectId $objectId )" ); |
407 |
|
# if ($objectId) { |
408 |
|
# $self->{storage}->update($obj); |
409 |
|
|
410 |
|
#print __PACKAGE__ . ":", "\n"; |
411 |
|
#print Dumper($object); |
412 |
|
|
413 |
|
# } else { |
414 |
|
# $self->{storage}->insert($obj); |
415 |
|
# } |
416 |
|
|
417 |
|
} |
418 |
|
|
419 |
|
#&& ( ref($obj) ne 'HASH' ) |
420 |
|
|
421 |
|
# loop through entries of array (IntrArray, isn't it?) |
422 |
|
if ((ref $object) eq 'ARRAY') { |
423 |
|
# print STDERR "===", "refttype ", attributes::reftype($obj), "\n"; |
424 |
|
my $i = 0; |
425 |
|
foreach (@{$object}) { |
426 |
|
push @indexstack, $i; |
427 |
|
my $ref = ref $_; |
428 |
|
# print STDERR "attrname: $_ ATTRref: $ref", "\n"; |
429 |
|
# if ($ref && $_) { |
430 |
|
if ($ref) { |
431 |
|
_hash2object_traverse_mixin($_, $data, 1, $options); |
432 |
|
} else { |
433 |
|
$object->[$i] = $_ if defined $_; |
434 |
|
} |
435 |
|
pop @indexstack; |
436 |
|
$i++; |
437 |
|
} |
438 |
|
|
439 |
|
=pod |
440 |
|
# object? |
441 |
|
} else { |
442 |
|
print "reference: ", ref $object, "\n"; |
443 |
|
print "reftype: ", $reftype, "\n"; |
444 |
|
die(__PACKAGE__ . "->_hash2object_traverse_mixin: can not handle this!"); |
445 |
|
=cut |
446 |
|
|
447 |
|
} |
448 |
|
|
449 |
|
} |
450 |
|
|
451 |
|
|
452 |
|
# ACK's go to Randal L. Schwartz <merlyn@stonehenge.com> |
453 |
|
# on the website: |
454 |
|
# This text is copyright by Miller-Freeman, Inc., and is used with their permission. |
455 |
|
# Further distribution or use is not permitted. |
456 |
|
# please visit http://www.stonehenge.com/merlyn/UnixReview/col30.html |
457 |
|
sub deep_copy1 { |
458 |
|
my $this = shift; |
459 |
|
if (not ref $this) { |
460 |
|
$this; |
461 |
|
} elsif (ref $this eq "ARRAY") { |
462 |
|
[map deep_copy1($_), @$this]; |
463 |
|
} elsif (ref $this eq "HASH") { |
464 |
|
+{map { $_ => deep_copy1($this->{$_}) } keys %$this}; |
465 |
|
} elsif (ref $this eq "CODE") { |
466 |
|
$this; |
467 |
|
} else { die "deep_copy1 asks: what type is $this?" } |
468 |
|
#} else { print "deep_copy asks: what type is $this?", "\n"; } |
469 |
} |
} |
470 |
|
|
471 |
|
# ACK's go to Andrew Pitonyak |
472 |
|
# Copyright 2002, Andrew Pitonyak (perlboy@pitonyak.org) |
473 |
|
# please visit: http://www.pitonyak.org/code/perl/Pitonyak/DeepCopy.pm.html |
474 |
|
sub deep_copy { |
475 |
|
Pitonyak::DeepCopy::deep_copy(@_); |
476 |
|
} |
477 |
|
|
478 |
|
|
479 |
|
sub childObj2string { |
480 |
|
my $obj = shift; |
481 |
|
my $option = shift; |
482 |
|
my $classname = ref $obj; |
483 |
|
|
484 |
|
if($option == 1) { |
485 |
|
my $string = "o_" . $classname . "_" .$obj->{guid}; |
486 |
|
return $string; |
487 |
|
} |
488 |
|
} |
489 |
|
|
490 |
|
|
491 |
1; |
1; |
492 |
|
__END__ |