/
validate.py
535 lines (439 loc) · 20.2 KB
/
validate.py
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
# IfcOpenShell - IFC toolkit and geometry engine
# Copyright (C) 2021 Thomas Krijnen <thomas@aecgeeks.com>
#
# This file is part of IfcOpenShell.
#
# IfcOpenShell is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# IfcOpenShell 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with IfcOpenShell. If not, see <http://www.gnu.org/licenses/>.
"""Data validation module
Can be used to run validation on IFC file from the command line:
.. code-block:: bash
python -m ifcopenshell.validate /path/to/model.ifc --rules
Available flags:
- ``--rules``: Also check express rules.
- ``--json``: Produce JSON output.
- ``--fields``: Output more detailed information about failed entities (available only with ``--json``).
"""
import os
import sys
import json
import functools
from collections import namedtuple
from typing import Union, Iterator, Any, Optional
from logging import Logger
import ifcopenshell
import ifcopenshell.ifcopenshell_wrapper
import ifcopenshell.express.rule_executor
named_type = ifcopenshell.ifcopenshell_wrapper.named_type
aggregation_type = ifcopenshell.ifcopenshell_wrapper.aggregation_type
simple_type = ifcopenshell.ifcopenshell_wrapper.simple_type
type_declaration = ifcopenshell.ifcopenshell_wrapper.type_declaration
enumeration_type = ifcopenshell.ifcopenshell_wrapper.enumeration_type
entity_type = ifcopenshell.ifcopenshell_wrapper.entity
select_type = ifcopenshell.ifcopenshell_wrapper.select_type
attribute = ifcopenshell.ifcopenshell_wrapper.attribute
inverse_attribute = ifcopenshell.ifcopenshell_wrapper.inverse_attribute
schema_definition = ifcopenshell.ifcopenshell_wrapper.schema_definition
attribute_types = Union[simple_type, named_type, enumeration_type, select_type, aggregation_type, type_declaration]
class ValidationError(Exception):
def __init__(self, message, attribute=None):
super(ValidationError, self).__init__(message)
self.attribute = attribute
log_entry_type = namedtuple("log_entry_type", ("level", "message", "instance", "attribute"))
class json_logger:
def __init__(self):
self.statements = []
self.state = {}
def set_state(self, key, value):
self.state[key] = value
def log(self, level, message, *args):
self.statements.append({"level": level, "message": message % args, **self.state})
def __getattr__(self, level):
return functools.partial(self.log, level)
simple_type_python_mapping = {
# @todo should include unicode for Python2
"string": str,
"integer": int,
"real": float,
"number": float,
"boolean": bool,
"logical": {True, False, "UNKNOWN"},
"binary": str, # maps to a str of "0" and "1"
}
def annotate_inst_attr_pos(inst: ifcopenshell.entity_instance, pos: int) -> str:
def get_pos() -> Iterator[int]:
depth = 0
idx = -1
for c in str(inst):
if c == "(":
depth += 1
if depth == 1:
idx = 0
yield -1
else:
yield idx
elif c == ")":
depth -= 1
if depth == 0:
idx = -1
yield -1
else:
yield idx
elif depth == 1 and c == ",":
idx += 1
yield -1
else:
yield idx
return "".join(" ^"[i == pos] for i in get_pos())
def format(val: Any) -> str:
if isinstance(val, tuple) and val and isinstance(val[0], ifcopenshell.entity_instance):
return "[\n%s\n ]" % "\n".join(" {}. {}".format(*x) for x in enumerate(val, start=1))
else:
return repr(val)
def assert_valid_inverse(
attr: inverse_attribute, val: tuple[ifcopenshell.entity_instance], schema: schema_definition
) -> bool:
b1, b2 = attr.bound1(), attr.bound2()
if (b1, b2) == (-1, -1):
invalid = len(val) != 1
else:
invalid = len(val) < b1 or (b2 != -1 and len(val) > b2)
if invalid:
ent_ref = attr.entity_reference().name()
attr_ref = attr.attribute_reference().name()
aggr = attr.type_of_aggregation_string().upper()
if aggr:
aggr_str = f'{aggr} [{b1}:{"?" if b2 == -1 else b2}] OF '
else:
aggr_str = ""
attr_formatted = f"{attr.name()} : {aggr_str}{ent_ref} FOR {attr_ref}"
raise ValidationError(
f"With inverse:\n {attr_formatted}\nValue:\n {format(val)}\nNot valid\n", attr.name()
)
return True
select_members_cache: dict[tuple[str, str], set[str]] = {}
def get_select_members(schema: schema_definition, ty: select_type) -> set[str]:
cache_key = schema.name(), ty.name()
from_cache = select_members_cache.get(cache_key)
if from_cache:
return from_cache
def inner(ty: select_type) -> Iterator[str]:
if isinstance(ty, select_type):
for st in ty.select_list():
yield from inner(st)
elif isinstance(ty, entity_type):
yield ty.name()
for st in ty.subtypes():
yield from inner(st)
elif isinstance(ty, type_declaration):
# @todo shouldn't we list subtypes (e.g IfcPositiveLengthMeasure -> IfcLengthMeasure) here as well?
yield ty.name()
elif isinstance(ty, enumeration_type):
yield ty.name()
else:
# @todo raise exception?
pass
v = select_members_cache[cache_key] = set(inner(ty))
return v
def assert_valid(
attr_type: attribute_types,
val: Any,
schema: schema_definition,
no_throw=False,
attr: Optional[attribute] = None,
):
type_wrappers = (named_type,)
if not isinstance(val, ifcopenshell.entity_instance):
# If val is not an entity instance we need to
# flatten the type declaration to something that
# maps to the python types
type_wrappers += (type_declaration,)
while isinstance(attr_type, type_wrappers):
attr_type = attr_type.declared_type()
invalid = False
if isinstance(attr_type, simple_type):
simple_type_python = simple_type_python_mapping[attr_type.declared_type()]
if type(simple_type_python) == set:
invalid = val not in simple_type_python
else:
invalid = type(val) != simple_type_python
elif isinstance(attr_type, (entity_type, type_declaration)):
invalid = not isinstance(val, ifcopenshell.entity_instance) or not val.is_a(attr_type.name())
elif isinstance(attr_type, select_type):
if not isinstance(val, ifcopenshell.entity_instance):
invalid = True
else:
value_type = schema.declaration_by_name(val.is_a())
if not isinstance(value_type, entity_type):
# we need to check two things: is (enumeration) literal/value valid
# for this type and is enumeration/value type valid for this select.
assert_valid(value_type, val.wrappedValue, schema, no_throw=no_throw)
# Previously we relied on `is_a(x) for x in attr_type.select_items()`
# this was linear in the number of select leafs, which is very large
# for e.g IfcValue, which is an often used select. Therefore, we now
# calculate (and cache) the select leafs (including entity subtypes)
# for the select definition and simply check for membership in this
# set.
invalid = val.is_a() not in get_select_members(schema, attr_type)
elif isinstance(attr_type, enumeration_type):
invalid = val not in attr_type.enumeration_items()
elif isinstance(attr_type, aggregation_type):
b1, b2 = attr_type.bound1(), attr_type.bound2()
ty = attr_type.type_of_element()
invalid = (
len(val) < b1
or (b2 != -1 and len(val) > b2)
or not all(assert_valid(ty, v, schema, attr=attr) for v in val)
)
else:
raise NotImplementedError("Not impl %s %s" % (type(attr_type), attr_type))
if no_throw:
return not invalid
elif invalid:
raise ValidationError(
f"With attribute:\n {attr or attr_type}\nValue:\n {val}\nNot valid\n",
*([attr.name()] if attr else []),
)
else:
return True
def log_internal_cpp_errors(filename: str, logger: Logger) -> None:
import re
import bisect
chr_offset_re = re.compile(r"at offset (\d+)\s*")
log = ifcopenshell.get_log()
msgs = list(map(json.loads, filter(None, log.split("\n"))))
chr_offsets = [chr_offset_re.findall(m["message"]) for m in msgs]
if chr_offsets:
# The file is opened in binary mode, in order
# to correspond with the offsets reported by
# IfcOpenShell C++
lines = list(open(filename, "rb"))
lengths = list(map(len, lines))
cumsum = 0
cs = [cumsum := cumsum + x for x in lengths]
for offsets, msg in zip(chr_offsets, msgs):
if offsets:
line = lines[bisect.bisect_left(cs, int(offsets[0]))].decode("ascii", errors="ignore").rstrip()
m = chr_offset_re.sub("", msg["message"])
if hasattr(logger, "set_state"):
logger.set_state("instance", line)
logger.set_state("attribute", None)
logger.error("%s:\n\n%s" % (m, line))
else:
logger.error("For instance:\n %s\n%s", line, m)
entity_attribute_map: dict[tuple[str, str], tuple[entity_type, tuple[attribute]]] = {}
def get_entity_attributes(schema: schema_definition, entity: str) -> tuple[entity_type, tuple[attribute]]:
cache_key = schema.name(), entity
from_cache = entity_attribute_map.get(cache_key)
if from_cache:
return from_cache
entity_attrs = (
ent := schema.declaration_by_name(entity),
ent.all_attributes(),
)
entity_attribute_map[cache_key] = entity_attrs
return entity_attrs
def validate(f: Union[ifcopenshell.file, str], logger: Logger, express_rules=False) -> None:
"""
For an IFC population model `f` (or filepath to such a file) validate whether the entity attribute values are correctly supplied. As this
is a function that is applied after a file has been parsed, certain types of errors in syntax, duplicate
numeric identifiers or invalidate entity names are not caught by this function. Some of these might have been
logged and can be retrieved by calling `ifcopenshell.get_log()`. A verification of the type, entity and global
WHERE rules is also not implemented.
For every entity instance in the model, it is checked that the entity is not abstract that every attribute value
is of the correct type and that the inverse attributes are of the correct cardinality.
Express simple types are checked for their valuation type. For select types it is asserted that the value conforms
to one of the leaves. For enumerations it is checked that the value is indeed on of the items. For aggregations it
is checked that the elements and the cardinality conforms. Type declarations (IfcInteger which is an integer) are
unpacked until one of the above cases is reached.
It is recommended to supply the path to the file, so that internal C++ errors reported during the parse stage
are also captured.
Example:
.. code:: python
logger = ifcopenshell.validate.json_logger()
ifcopenshell.validate.validate("/path/to/model.ifc", logger, express_rules=True)
from pprint import pprint
pprint(logger.statements)
"""
# Originally there was no way in Python to distinguish on an entity instance attribute value whether the
# value supplied in the model was NIL ($) or 'missing because derived in subtype' (*). For validation this
# however this may be important, and hence a feature switch has been implemented to return *-values as
# instances of a dedicated type `ifcopenshell.ifcopenshell_wrapper.attribute_value_derived`.
attribute_value_derived_org = ifcopenshell.ifcopenshell_wrapper.get_feature("use_attribute_value_derived")
ifcopenshell.ifcopenshell_wrapper.set_feature("use_attribute_value_derived", True)
filename = None
if hasattr(logger, "set_state"):
logger.set_state("type", "schema")
if not isinstance(f, ifcopenshell.file):
# get_log() clears log existing output
ifcopenshell.get_log()
# @todo restore log format
ifcopenshell.ifcopenshell_wrapper.set_log_format_json()
filename = f
try:
f = ifcopenshell.open(f)
except ifcopenshell.SchemaError as e:
current_dir_files = {fn.lower(): fn for fn in os.listdir(".")}
schema_name = str(e).split(" ")[-1].lower()
exists = current_dir_files.get(schema_name + ".exp")
if exists:
schema = ifcopenshell.express.parse(exists)
ifcopenshell.register_schema(schema)
f = ifcopenshell.open(f)
else:
logger.error(f"Unsupported schema: {schema_name}")
return
log_internal_cpp_errors(filename, logger)
schema = ifcopenshell.ifcopenshell_wrapper.schema_by_name(f.schema_identifier)
used_guids: dict[str, ifcopenshell.entity_instance] = dict()
for inst in f:
if hasattr(logger, "set_state"):
logger.set_state("instance", inst)
if hasattr(inst, "GlobalId"):
guid = inst.GlobalId
if guid is not None and guid in used_guids:
rule = "Rule IfcRoot.UR1:\n The attribute GlobalId should be unique"
previous_element = used_guids[guid]
logger.error(
"On instance:\n %s\n %s\n%s\nViolated by:\n %s\n %s",
inst,
annotate_inst_attr_pos(inst, 0),
rule,
previous_element,
annotate_inst_attr_pos(previous_element, 0),
)
else:
used_guids[guid] = inst
entity, attrs = get_entity_attributes(schema, inst.is_a())
if entity.is_abstract():
e = "Entity %s is abstract" % entity.name()
if hasattr(logger, "set_state"):
logger.set_state("attribute", None)
logger.error(e)
else:
logger.error("For instance:\n %s\n%s", inst, e)
has_invalid_value = False
values = [None] * len(attrs)
for i in range(len(attrs)):
try:
values[i] = inst[i]
pass
except:
if hasattr(logger, "set_state"):
logger.set_state("attribute", f"{entity.name()}.{attrs[i].name()}")
logger.error("Invalid attribute value")
else:
logger.error(
"For instance:\n %s\n %s\nInvalid attribute value for %s.%s",
inst,
annotate_inst_attr_pos(inst, i),
entity,
attrs[i],
)
has_invalid_value = True
if not has_invalid_value:
for i, (attr, val, is_derived) in enumerate(zip(attrs, values, entity.derived())):
if is_derived and not isinstance(val, ifcopenshell.ifcopenshell_wrapper.attribute_value_derived):
if hasattr(logger, "set_state"):
logger.set_state("attribute", f"{entity.name()}.{attr.name()}")
logger.error("Attribute is derived in subtype")
else:
logger.error(
"For instance:\n %s\n %s\nWith attribute:\n %s\nDerived in subtype\n",
inst,
annotate_inst_attr_pos(inst, i),
attr,
)
if val is None and not attr.optional() and not is_derived:
if hasattr(logger, "set_state"):
logger.set_state("attribute", f"{entity.name()}.{attr.name()}")
logger.error("Attribute not optional")
else:
logger.error(
"For instance:\n %s\n %s\nWith attribute:\n %s\nNot optional\n",
inst,
annotate_inst_attr_pos(inst, i),
attr,
)
if val is not None and not is_derived:
attr_type = attr.type_of_attribute()
try:
assert_valid(attr_type, val, schema, attr=attr)
except ValidationError as e:
if hasattr(logger, "set_state"):
logger.set_state("attribute", e.attribute)
logger.error(str(e))
else:
logger.error(
"For instance:\n %s\n %s\n%s",
inst,
annotate_inst_attr_pos(inst, i),
e,
)
for attr in entity.all_inverse_attributes():
try:
val = getattr(inst, attr.name())
except Exception as e:
if hasattr(logger, "set_state"):
logger.set_state("attribute", f"{entity.name()}.{attr.name()}")
logger.error(str(e))
else:
logger.error("For instance:\n %s\n%s", inst, e)
continue
try:
assert_valid_inverse(attr, val, schema)
except ValidationError as e:
if hasattr(logger, "set_state"):
logger.set_state("attribute", f"{entity.name()}.{attr.name()}")
logger.error(str(e))
else:
logger.error("For instance:\n %s\n%s", inst, e)
if filename:
# IfcOpenShell uses lazy-loading, so entity instance
# attributes aren't parsed yet, and counts aren't verified yet.
# Re capturing the log when validate() is finished
# iterating over every instance so that all attribute counts
# are verified.
log_internal_cpp_errors(filename, logger)
# Restore the original value for 'use_attribute_value_derived'
ifcopenshell.ifcopenshell_wrapper.set_feature("use_attribute_value_derived", attribute_value_derived_org)
if express_rules:
if hasattr(logger, "set_state"):
logger.set_state("instance", None)
logger.set_state("attribute", None)
ifcopenshell.express.rule_executor.run(f, logger)
if __name__ == "__main__":
import sys
import logging
filenames = [x for x in sys.argv[1:] if not x.startswith("--")]
flags = set(x for x in sys.argv[1:] if x.startswith("--"))
for fn in filenames:
if "--json" in flags:
logger = json_logger()
else:
logger = logging.getLogger("validate")
logger.setLevel(logging.DEBUG)
print("Validating", fn, file=sys.stderr)
validate(fn, logger, "--rules" in flags)
if "--json" in flags:
sys.stdout.reconfigure(encoding="utf-8")
conv = str
if "--spf" in flags:
conv = lambda x: x.to_string() if isinstance(x, ifcopenshell.entity_instance) else str(x)
if "--fields" in flags:
def conv(x):
if isinstance(x, ifcopenshell.entity_instance):
return x.get_info(scalar_only=True)
else:
return str(x)
print("\n".join(json.dumps(x, default=conv) for x in logger.statements))