1 # The MIT License (MIT)
3 # Copyright (c) 2015-2016 Philippe Proulx <pproulx@efficios.com>
5 # Permission is hereby granted, free of charge, to any person obtaining a copy
6 # of this software and associated documentation files (the "Software"), to deal
7 # in the Software without restriction, including without limitation the rights
8 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 # copies of the Software, and to permit persons to whom the Software is
10 # furnished to do so, subject to the following conditions:
12 # The above copyright notice and this permission notice shall be included in
13 # all copies or substantial portions of the Software.
15 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23 from barectf
import metadata
35 class ConfigError(RuntimeError):
36 def __init__(self
, msg
, prev
=None):
46 def __init__(self
, version
, prefix
, metadata
):
48 self
.version
= version
49 self
.metadata
= metadata
51 def _validate_metadata(self
, meta
):
53 validator
= _MetadataTypesHistologyValidator()
54 validator
.validate(meta
)
55 validator
= _MetadataDynamicTypesValidator()
56 validator
.validate(meta
)
57 validator
= _MetadataSpecialFieldsValidator()
58 validator
.validate(meta
)
59 except Exception as e
:
60 raise ConfigError('metadata error', e
)
63 validator
= _BarectfMetadataValidator()
64 validator
.validate(meta
)
65 except Exception as e
:
66 raise ConfigError('barectf metadata error', e
)
68 def _augment_metadata_env(self
, meta
):
71 env
['domain'] = 'bare'
72 env
['tracer_name'] = 'barectf'
73 version_tuple
= barectf
.get_version_tuple()
74 env
['tracer_major'] = version_tuple
[0]
75 env
['tracer_minor'] = version_tuple
[1]
76 env
['tracer_patch'] = version_tuple
[2]
77 env
['barectf_gen_date'] = str(datetime
.datetime
.now().isoformat())
84 def version(self
, value
):
92 def metadata(self
, value
):
93 self
._validate
_metadata
(value
)
94 self
._augment
_metadata
_env
(value
)
95 self
._metadata
= value
102 def prefix(self
, value
):
103 if not is_valid_identifier(value
):
104 raise ConfigError('prefix must be a valid C identifier')
109 def _is_assoc_array_prop(node
):
110 return isinstance(node
, dict)
113 def _is_array_prop(node
):
114 return isinstance(node
, list)
117 def _is_int_prop(node
):
118 return type(node
) is int
121 def _is_str_prop(node
):
122 return type(node
) is str
125 def _is_bool_prop(node
):
126 return type(node
) is bool
129 def _is_valid_alignment(align
):
130 return ((align
& (align
- 1)) == 0) and align
> 0
133 def _byte_order_str_to_bo(bo_str
):
134 bo_str
= bo_str
.lower()
137 return metadata
.ByteOrder
.LE
139 return metadata
.ByteOrder
.BE
142 def _encoding_str_to_encoding(encoding_str
):
143 encoding_str
= encoding_str
.lower()
145 if encoding_str
== 'utf-8' or encoding_str
== 'utf8':
146 return metadata
.Encoding
.UTF8
147 elif encoding_str
== 'ascii':
148 return metadata
.Encoding
.ASCII
149 elif encoding_str
== 'none':
150 return metadata
.Encoding
.NONE
153 _re_iden
= re
.compile(r
'^[a-zA-Z][a-zA-Z0-9_]*$')
154 _ctf_keywords
= set([
173 def is_valid_identifier(iden
):
174 if not _re_iden
.match(iden
):
177 if _re_iden
in _ctf_keywords
:
183 def _get_first_unknown_prop(node
, known_props
):
184 for prop_name
in node
:
185 if prop_name
in known_props
:
191 # This validator validates the configured metadata for barectf specific
196 # * all header/contexts are at least byte-aligned
197 # * all integer and floating point number sizes to be <= 64
198 # * no inner structures, arrays, or variants
199 class _BarectfMetadataValidator
:
201 self
._type
_to
_validate
_type
_func
= {
202 metadata
.Integer
: self
._validate
_int
_type
,
203 metadata
.FloatingPoint
: self
._validate
_float
_type
,
204 metadata
.Enum
: self
._validate
_enum
_type
,
205 metadata
.String
: self
._validate
_string
_type
,
206 metadata
.Struct
: self
._validate
_struct
_type
,
207 metadata
.Array
: self
._validate
_array
_type
,
208 metadata
.Variant
: self
._validate
_variant
_type
,
211 def _validate_int_type(self
, t
, entity_root
):
213 raise ConfigError('integer type\'s size must be lesser than or equal to 64 bits')
215 def _validate_float_type(self
, t
, entity_root
):
217 raise ConfigError('floating point number type\'s size must be lesser than or equal to 64 bits')
219 def _validate_enum_type(self
, t
, entity_root
):
220 if t
.value_type
.size
> 64:
221 raise ConfigError('enumeration type\'s integer type\'s size must be lesser than or equal to 64 bits')
223 def _validate_string_type(self
, t
, entity_root
):
226 def _validate_struct_type(self
, t
, entity_root
):
228 raise ConfigError('inner structure types are not supported as of this version')
230 for field_name
, field_type
in t
.fields
.items():
231 if entity_root
and self
._cur
_entity
is _Entity
.TRACE_PACKET_HEADER
:
232 if field_name
== 'uuid':
237 self
._validate
_type
(field_type
, False)
238 except Exception as e
:
239 raise ConfigError('in structure type\'s field "{}"'.format(field_name
), e
)
241 def _validate_array_type(self
, t
, entity_root
):
242 raise ConfigError('array types are not supported as of this version')
244 def _validate_variant_type(self
, t
, entity_root
):
245 raise ConfigError('variant types are not supported as of this version')
247 def _validate_type(self
, t
, entity_root
):
248 self
._type
_to
_validate
_type
_func
[type(t
)](t
, entity_root
)
250 def _validate_entity(self
, t
):
254 # make sure entity is byte-aligned
256 raise ConfigError('type\'s alignment must be at least byte-aligned')
258 # make sure entity is a structure
259 if type(t
) is not metadata
.Struct
:
260 raise ConfigError('expecting a structure type')
263 self
._validate
_type
(t
, True)
265 def _validate_entities_and_names(self
, meta
):
266 self
._cur
_entity
= _Entity
.TRACE_PACKET_HEADER
269 self
._validate
_entity
(meta
.trace
.packet_header_type
)
270 except Exception as e
:
271 raise ConfigError('invalid trace packet header type', e
)
273 for stream_name
, stream
in meta
.streams
.items():
274 if not is_valid_identifier(stream_name
):
275 raise ConfigError('stream name "{}" is not a valid C identifier'.format(stream_name
))
277 self
._cur
_entity
= _Entity
.STREAM_PACKET_CONTEXT
280 self
._validate
_entity
(stream
.packet_context_type
)
281 except Exception as e
:
282 raise ConfigError('invalid packet context type in stream "{}"'.format(stream_name
), e
)
284 self
._cur
_entity
= _Entity
.STREAM_EVENT_HEADER
287 self
._validate
_entity
(stream
.event_header_type
)
288 except Exception as e
:
289 raise ConfigError('invalid event header type in stream "{}"'.format(stream_name
), e
)
291 self
._cur
_entity
= _Entity
.STREAM_EVENT_CONTEXT
294 self
._validate
_entity
(stream
.event_context_type
)
295 except Exception as e
:
296 raise ConfigError('invalid event context type in stream "{}"'.format(stream_name
), e
)
299 for ev_name
, ev
in stream
.events
.items():
300 if not is_valid_identifier(ev_name
):
301 raise ConfigError('event name "{}" is not a valid C identifier'.format(ev_name
))
303 self
._cur
_entity
= _Entity
.EVENT_CONTEXT
306 self
._validate
_entity
(ev
.context_type
)
307 except Exception as e
:
308 raise ConfigError('invalid context type in event "{}"'.format(ev_name
), e
)
310 self
._cur
_entity
= _Entity
.EVENT_PAYLOAD
312 if ev
.payload_type
is None:
313 raise ConfigError('missing payload type in event "{}"'.format(ev_name
), e
)
316 self
._validate
_entity
(ev
.payload_type
)
317 except Exception as e
:
318 raise ConfigError('invalid payload type in event "{}"'.format(ev_name
), e
)
320 if not ev
.payload_type
.fields
:
321 raise ConfigError('empty payload type in event "{}"'.format(ev_name
), e
)
322 except Exception as e
:
323 raise ConfigError('invalid stream "{}"'.format(stream_name
), e
)
325 def validate(self
, meta
):
326 self
._validate
_entities
_and
_names
(meta
)
329 # This validator validates special fields of trace, stream, and event
330 # types. For example, if checks that the "stream_id" field exists in the
331 # trace packet header if there's more than one stream, and much more.
332 class _MetadataSpecialFieldsValidator
:
333 def _validate_trace_packet_header_type(self
, t
):
334 # needs "stream_id" field?
335 if len(self
._meta
.streams
) > 1:
338 raise ConfigError('need "stream_id" field in trace packet header type, but trace packet header type is missing')
340 if type(t
) is not metadata
.Struct
:
341 raise ConfigError('need "stream_id" field in trace packet header type, but trace packet header type is not a structure type')
343 if 'stream_id' not in t
.fields
:
344 raise ConfigError('need "stream_id" field in trace packet header type')
346 # validate "magic" and "stream_id" types
347 if type(t
) is not metadata
.Struct
:
350 for i
, (field_name
, field_type
) in enumerate(t
.fields
.items()):
351 if field_name
== 'magic':
352 if type(field_type
) is not metadata
.Integer
:
353 raise ConfigError('"magic" field in trace packet header type must be an integer type')
355 if field_type
.signed
or field_type
.size
!= 32:
356 raise ConfigError('"magic" field in trace packet header type must be a 32-bit unsigned integer type')
359 raise ConfigError('"magic" field must be the first trace packet header type\'s field')
360 elif field_name
== 'stream_id':
361 if type(field_type
) is not metadata
.Integer
:
362 raise ConfigError('"stream_id" field in trace packet header type must be an integer type')
364 if field_type
.signed
:
365 raise ConfigError('"stream_id" field in trace packet header type must be an unsigned integer type')
367 # "id" size can fit all event IDs
368 if len(self
._meta
.streams
) > (1 << field_type
.size
):
369 raise ConfigError('"stream_id" field\' size in trace packet header type is too small for the number of trace streams')
370 elif field_name
== 'uuid':
371 if self
._meta
.trace
.uuid
is None:
372 raise ConfigError('"uuid" field in trace packet header type specified, but no trace UUID provided')
374 if type(field_type
) is not metadata
.Array
:
375 raise ConfigError('"uuid" field in trace packet header type must be an array')
377 if field_type
.length
!= 16:
378 raise ConfigError('"uuid" field in trace packet header type must be an array of 16 bytes')
380 element_type
= field_type
.element_type
382 if type(element_type
) is not metadata
.Integer
:
383 raise ConfigError('"uuid" field in trace packet header type must be an array of 16 unsigned bytes')
385 if element_type
.size
!= 8:
386 raise ConfigError('"uuid" field in trace packet header type must be an array of 16 unsigned bytes')
388 if element_type
.signed
:
389 raise ConfigError('"uuid" field in trace packet header type must be an array of 16 unsigned bytes')
391 if element_type
.align
!= 8:
392 raise ConfigError('"uuid" field in trace packet header type must be an array of 16 unsigned, byte-aligned bytes')
394 def _validate_trace(self
, meta
):
395 self
._validate
_trace
_packet
_header
_type
(meta
.trace
.packet_header_type
)
397 def _validate_stream_packet_context(self
, stream
):
398 t
= stream
.packet_context_type
401 raise ConfigError('missing "packet-context-type" property in stream object')
403 if type(t
) is not metadata
.Struct
:
404 raise ConfigError('"packet-context-type": expecting a structure type')
406 # "timestamp_begin", if exists, is an unsigned integer type,
410 if 'timestamp_begin' in t
.fields
:
411 ts_begin
= t
.fields
['timestamp_begin']
413 if type(ts_begin
) is not metadata
.Integer
:
414 raise ConfigError('"timestamp_begin" field in stream packet context type must be an integer type')
417 raise ConfigError('"timestamp_begin" field in stream packet context type must be an unsigned integer type')
419 if not ts_begin
.property_mappings
:
420 raise ConfigError('"timestamp_begin" field in stream packet context type must be mapped to a clock')
422 # "timestamp_end", if exists, is an unsigned integer type,
426 if 'timestamp_end' in t
.fields
:
427 ts_end
= t
.fields
['timestamp_end']
429 if type(ts_end
) is not metadata
.Integer
:
430 raise ConfigError('"timestamp_end" field in stream packet context type must be an integer type')
433 raise ConfigError('"timestamp_end" field in stream packet context type must be an unsigned integer type')
435 if not ts_end
.property_mappings
:
436 raise ConfigError('"timestamp_end" field in stream packet context type must be mapped to a clock')
438 # "timestamp_begin" and "timestamp_end" exist together
439 if (('timestamp_begin' in t
.fields
) ^
('timestamp_end' in t
.fields
)):
440 raise ConfigError('"timestamp_begin" and "timestamp_end" fields must be defined together in stream packet context type')
442 # "timestamp_begin" and "timestamp_end" are mapped to the same clock
443 if ts_begin
is not None and ts_end
is not None:
444 if ts_begin
.property_mappings
[0].object.name
!= ts_end
.property_mappings
[0].object.name
:
445 raise ConfigError('"timestamp_begin" and "timestamp_end" fields must be mapped to the same clock object in stream packet context type')
447 # "events_discarded", if exists, is an unsigned integer type
448 if 'events_discarded' in t
.fields
:
449 events_discarded
= t
.fields
['events_discarded']
451 if type(events_discarded
) is not metadata
.Integer
:
452 raise ConfigError('"events_discarded" field in stream packet context type must be an integer type')
454 if events_discarded
.signed
:
455 raise ConfigError('"events_discarded" field in stream packet context type must be an unsigned integer type')
457 # "packet_size" and "content_size" must exist
458 if 'packet_size' not in t
.fields
:
459 raise ConfigError('missing "packet_size" field in stream packet context type')
461 packet_size
= t
.fields
['packet_size']
463 # "content_size" and "content_size" must exist
464 if 'content_size' not in t
.fields
:
465 raise ConfigError('missing "content_size" field in stream packet context type')
467 content_size
= t
.fields
['content_size']
469 # "packet_size" is an unsigned integer type
470 if type(packet_size
) is not metadata
.Integer
:
471 raise ConfigError('"packet_size" field in stream packet context type must be an integer type')
473 if packet_size
.signed
:
474 raise ConfigError('"packet_size" field in stream packet context type must be an unsigned integer type')
476 # "content_size" is an unsigned integer type
477 if type(content_size
) is not metadata
.Integer
:
478 raise ConfigError('"content_size" field in stream packet context type must be an integer type')
480 if content_size
.signed
:
481 raise ConfigError('"content_size" field in stream packet context type must be an unsigned integer type')
483 # "packet_size" size should be greater than or equal to "content_size" size
484 if content_size
.size
> packet_size
.size
:
485 raise ConfigError('"content_size" field size must be lesser than or equal to "packet_size" field size')
487 def _validate_stream_event_header(self
, stream
):
488 t
= stream
.event_header_type
491 if len(stream
.events
) > 1:
494 raise ConfigError('need "id" field in stream event header type, but stream event header type is missing')
496 if type(t
) is not metadata
.Struct
:
497 raise ConfigError('need "id" field in stream event header type, but stream event header type is not a structure type')
499 if 'id' not in t
.fields
:
500 raise ConfigError('need "id" field in stream event header type')
502 # validate "id" and "timestamp" types
503 if type(t
) is not metadata
.Struct
:
506 # "timestamp", if exists, is an unsigned integer type,
508 if 'timestamp' in t
.fields
:
509 ts
= t
.fields
['timestamp']
511 if type(ts
) is not metadata
.Integer
:
512 raise ConfigError('"timestamp" field in stream event header type must be an integer type')
515 raise ConfigError('"timestamp" field in stream event header type must be an unsigned integer type')
517 if not ts
.property_mappings
:
518 raise ConfigError('"timestamp" field in stream event header type must be mapped to a clock')
523 # "id" is an unsigned integer type
524 if type(eid
) is not metadata
.Integer
:
525 raise ConfigError('"id" field in stream event header type must be an integer type')
528 raise ConfigError('"id" field in stream event header type must be an unsigned integer type')
530 # "id" size can fit all event IDs
531 if len(stream
.events
) > (1 << eid
.size
):
532 raise ConfigError('"id" field\' size in stream event header type is too small for the number of stream events')
534 def _validate_stream(self
, stream
):
535 self
._validate
_stream
_packet
_context
(stream
)
536 self
._validate
_stream
_event
_header
(stream
)
538 def validate(self
, meta
):
540 self
._validate
_trace
(meta
)
542 for stream
in meta
.streams
.values():
544 self
._validate
_stream
(stream
)
545 except Exception as e
:
546 raise ConfigError('invalid stream "{}"'.format(stream
.name
), e
)
549 class _MetadataDynamicTypesValidatorStackEntry
:
550 def __init__(self
, base_t
):
551 self
._base
_t
= base_t
559 def index(self
, value
):
567 def base_t(self
, value
):
571 # Entities. Order of values is important here.
573 class _Entity(enum
.IntEnum
):
574 TRACE_PACKET_HEADER
= 0
575 STREAM_PACKET_CONTEXT
= 1
576 STREAM_EVENT_HEADER
= 2
577 STREAM_EVENT_CONTEXT
= 3
582 # This validator validates dynamic metadata types, that is, it ensures
583 # variable-length array lengths and variant tags actually point to
584 # something that exists. It also checks that variable-length array
585 # lengths point to integer types and variant tags to enumeration types.
586 class _MetadataDynamicTypesValidator
:
588 self
._type
_to
_visit
_type
_func
= {
589 metadata
.Integer
: None,
590 metadata
.FloatingPoint
: None,
592 metadata
.String
: None,
593 metadata
.Struct
: self
._visit
_struct
_type
,
594 metadata
.Array
: self
._visit
_array
_type
,
595 metadata
.Variant
: self
._visit
_variant
_type
,
598 self
._cur
_trace
= None
599 self
._cur
_stream
= None
600 self
._cur
_event
= None
602 def _lookup_path_from_base(self
, path
, parts
, base
, start_index
,
603 base_is_current
, from_t
):
608 while index
< len(parts
):
612 if type(cur_t
) is metadata
.Struct
:
613 enumerated_items
= enumerate(cur_t
.fields
.items())
616 for i
, (field_name
, field_type
) in enumerated_items
:
617 if field_name
== part
:
619 found_path
.append((i
, field_type
))
622 raise ConfigError('invalid path "{}": cannot find field "{}" in structure type'.format(path
, part
))
623 elif type(cur_t
) is metadata
.Variant
:
624 enumerated_items
= enumerate(cur_t
.types
.items())
627 for i
, (type_name
, type_type
) in enumerated_items
:
628 if type_name
== part
:
630 found_path
.append((i
, type_type
))
633 raise ConfigError('invalid path "{}": cannot find type "{}" in variant type'.format(path
, part
))
635 raise ConfigError('invalid path "{}": requesting "{}" in a non-variant, non-structure type'.format(path
, part
))
640 # make sure that the pointed type is not the pointing type
642 raise ConfigError('invalid path "{}": pointing to self'.format(path
))
644 # if we're here, we found the type; however, it could be located
645 # _after_ the variant/VLA looking for it, if the pointing
646 # and pointed types are in the same entity, so compare the
647 # current stack entries indexes to our index path in that case
648 if not base_is_current
:
651 for index
, entry
in enumerate(self
._stack
):
652 if index
== len(found_path
):
653 # end of index path; valid so far
656 if found_path
[index
][0] > entry
.index
:
657 raise ConfigError('invalid path "{}": pointed type is after pointing type'.format(path
))
659 # also make sure that both pointed and pointing types share
660 # a common structure ancestor
661 for index
, entry
in enumerate(self
._stack
):
662 if index
== len(found_path
):
665 if entry
.base_t
is not found_path
[index
][1]:
666 # found common ancestor
667 if type(entry
.base_t
) is metadata
.Variant
:
668 raise ConfigError('invalid path "{}": type cannot be reached because pointed and pointing types are in the same variant type'.format(path
))
672 def _lookup_path_from_top(self
, path
, parts
):
674 raise ConfigError('invalid path "{}": multipart relative path not supported'.format(path
))
677 index
= len(self
._stack
) - 1
680 # check stack entries in reversed order
681 for entry
in reversed(self
._stack
):
682 # structure base type
683 if type(entry
.base_t
) is metadata
.Struct
:
685 enumerated_items
= enumerate(entry
.base_t
.fields
.items())
687 # lookup each field, until the current visiting index is met
688 for i
, (field_name
, field_type
) in enumerated_items
:
692 if field_name
== find_name
:
696 elif type(entry
.base_t
) is metadata
.Variant
:
697 enumerated_items
= enumerate(entry
.base_t
.types
.items())
699 # lookup each type, until the current visiting index is met
700 for i
, (type_name
, type_type
) in enumerated_items
:
704 if type_name
== find_name
:
706 raise ConfigError('invalid path "{}": type cannot be reached because pointed and pointing types are in the same variant type'.format(path
))
710 # nothing returned here: cannot find type
711 raise ConfigError('invalid path "{}": cannot find type in current context'.format(path
))
713 def _lookup_path(self
, path
, from_t
):
714 parts
= path
.lower().split('.')
716 base_is_current
= False
719 if parts
[0] == 'trace':
720 if parts
[1] == 'packet' and parts
[2] == 'header':
721 # make sure packet header exists
722 if self
._cur
_trace
.packet_header_type
is None:
723 raise ConfigError('invalid path "{}": no defined trace packet header type'.format(path
))
725 base
= self
._cur
_trace
.packet_header_type
727 if self
._cur
_entity
== _Entity
.TRACE_PACKET_HEADER
:
728 base_is_current
= True
730 raise ConfigError('invalid path "{}": unknown names after "trace"'.format(path
))
731 elif parts
[0] == 'stream':
732 if parts
[1] == 'packet' and parts
[2] == 'context':
733 if self
._cur
_entity
< _Entity
.STREAM_PACKET_CONTEXT
:
734 raise ConfigError('invalid path "{}": cannot access stream packet context here'.format(path
))
736 if self
._cur
_stream
.packet_context_type
is None:
737 raise ConfigError('invalid path "{}": no defined stream packet context type'.format(path
))
739 base
= self
._cur
_stream
.packet_context_type
741 if self
._cur
_entity
== _Entity
.STREAM_PACKET_CONTEXT
:
742 base_is_current
= True
743 elif parts
[1] == 'event':
744 if parts
[2] == 'header':
745 if self
._cur
_entity
< _Entity
.STREAM_EVENT_HEADER
:
746 raise ConfigError('invalid path "{}": cannot access stream event header here'.format(path
))
748 if self
._cur
_stream
.event_header_type
is None:
749 raise ConfigError('invalid path "{}": no defined stream event header type'.format(path
))
751 base
= self
._cur
_stream
.event_header_type
753 if self
._cur
_entity
== _Entity
.STREAM_EVENT_HEADER
:
754 base_is_current
= True
755 elif parts
[2] == 'context':
756 if self
._cur
_entity
< _Entity
.STREAM_EVENT_CONTEXT
:
757 raise ConfigError('invalid path "{}": cannot access stream event context here'.format(path
))
759 if self
._cur
_stream
.event_context_type
is None:
760 raise ConfigError('invalid path "{}": no defined stream event context type'.format(path
))
762 base
= self
._cur
_stream
.event_context_type
764 if self
._cur
_entity
== _Entity
.STREAM_EVENT_CONTEXT
:
765 base_is_current
= True
767 raise ConfigError('invalid path "{}": unknown names after "stream.event"'.format(path
))
769 raise ConfigError('invalid path "{}": unknown names after "stream"'.format(path
))
774 if len(parts
) >= 2 and base
is None:
775 if parts
[0] == 'event':
776 if parts
[1] == 'context':
777 if self
._cur
_entity
< _Entity
.EVENT_CONTEXT
:
778 raise ConfigError('invalid path "{}": cannot access event context here'.format(path
))
780 if self
._cur
_event
.context_type
is None:
781 raise ConfigError('invalid path "{}": no defined event context type'.format(path
))
783 base
= self
._cur
_event
.context_type
785 if self
._cur
_entity
== _Entity
.EVENT_CONTEXT
:
786 base_is_current
= True
787 elif parts
[1] == 'payload' or parts
[1] == 'fields':
788 if self
._cur
_entity
< _Entity
.EVENT_PAYLOAD
:
789 raise ConfigError('invalid path "{}": cannot access event payload here'.format(path
))
791 if self
._cur
_event
.payload_type
is None:
792 raise ConfigError('invalid path "{}": no defined event payload type'.format(path
))
794 base
= self
._cur
_event
.payload_type
796 if self
._cur
_entity
== _Entity
.EVENT_PAYLOAD
:
797 base_is_current
= True
799 raise ConfigError('invalid path "{}": unknown names after "event"'.format(path
))
805 return self
._lookup
_path
_from
_base
(path
, parts
, base
, start_index
,
806 base_is_current
, from_t
)
808 return self
._lookup
_path
_from
_top
(path
, parts
)
810 def _stack_reset(self
):
813 def _stack_push(self
, base_t
):
814 entry
= _MetadataDynamicTypesValidatorStackEntry(base_t
)
815 self
._stack
.append(entry
)
817 def _stack_pop(self
):
820 def _stack_incr_index(self
):
821 self
._stack
[-1].index
+= 1
823 def _visit_struct_type(self
, t
):
826 for field_name
, field_type
in t
.fields
.items():
828 self
._visit
_type
(field_type
)
829 except Exception as e
:
830 raise ConfigError('in structure type\'s field "{}"'.format(field_name
), e
)
832 self
._stack
_incr
_index
()
836 def _visit_array_type(self
, t
):
837 if t
.is_variable_length
:
840 length_type
= self
._lookup
_path
(t
.length
, t
)
841 except Exception as e
:
842 raise ConfigError('invalid array type\'s length', e
)
844 # make sure length type an unsigned integer
845 if type(length_type
) is not metadata
.Integer
:
846 raise ConfigError('array type\'s length does not point to an integer type')
848 if length_type
.signed
:
849 raise ConfigError('array type\'s length does not point to an unsigned integer type')
851 self
._visit
_type
(t
.element_type
)
853 def _visit_variant_type(self
, t
):
856 tag_type
= self
._lookup
_path
(t
.tag
, t
)
857 except Exception as e
:
858 raise ConfigError('invalid variant type\'s tag', e
)
860 # make sure tag type is an enumeration
861 if type(tag_type
) is not metadata
.Enum
:
862 raise ConfigError('variant type\'s tag does not point to an enumeration type')
864 # verify that each variant type's type exists as an enumeration member
865 for tag_name
in t
.types
.keys():
866 if tag_name
not in tag_type
.members
:
867 raise ConfigError('cannot find variant type\'s type "{}" in pointed tag type'.format(tag_name
))
871 for type_name
, type_type
in t
.types
.items():
873 self
._visit
_type
(type_type
)
874 except Exception as e
:
875 raise ConfigError('in variant type\'s type "{}"'.format(type_name
), e
)
877 self
._stack
_incr
_index
()
881 def _visit_type(self
, t
):
885 if type(t
) in self
._type
_to
_visit
_type
_func
:
886 func
= self
._type
_to
_visit
_type
_func
[type(t
)]
891 def _visit_event(self
, ev
):
897 # visit event context type
899 self
._cur
_entity
= _Entity
.EVENT_CONTEXT
902 self
._visit
_type
(ev
.context_type
)
903 except Exception as e
:
904 raise ConfigError('invalid context type in event "{}"'.format(ev_name
), e
)
906 # visit event payload type
908 self
._cur
_entity
= _Entity
.EVENT_PAYLOAD
911 self
._visit
_type
(ev
.payload_type
)
912 except Exception as e
:
913 raise ConfigError('invalid payload type in event "{}"'.format(ev_name
), e
)
915 def _visit_stream(self
, stream
):
916 stream_name
= stream
.name
919 self
._cur
_stream
= stream
921 # reset current event
922 self
._cur
_event
= None
924 # visit stream packet context type
926 self
._cur
_entity
= _Entity
.STREAM_PACKET_CONTEXT
929 self
._visit
_type
(stream
.packet_context_type
)
930 except Exception as e
:
931 raise ConfigError('invalid packet context type in stream "{}"'.format(stream_name
), e
)
933 # visit stream event header type
935 self
._cur
_entity
= _Entity
.STREAM_EVENT_HEADER
938 self
._visit
_type
(stream
.event_header_type
)
939 except Exception as e
:
940 raise ConfigError('invalid event header type in stream "{}"'.format(stream_name
), e
)
942 # visit stream event context type
944 self
._cur
_entity
= _Entity
.STREAM_EVENT_CONTEXT
947 self
._visit
_type
(stream
.event_context_type
)
948 except Exception as e
:
949 raise ConfigError('invalid event context type in stream "{}"'.format(stream_name
), e
)
952 for ev
in stream
.events
.values():
954 self
._visit
_event
(ev
)
955 except Exception as e
:
956 raise ConfigError('invalid stream "{}"'.format(stream_name
))
958 def validate(self
, meta
):
960 self
._cur
_trace
= meta
.trace
962 # visit trace packet header type
964 self
._cur
_entity
= _Entity
.TRACE_PACKET_HEADER
967 self
._visit
_type
(meta
.trace
.packet_header_type
)
968 except Exception as e
:
969 raise ConfigError('invalid packet header type in trace', e
)
972 for stream
in meta
.streams
.values():
973 self
._visit
_stream
(stream
)
976 # Since type inheritance allows types to be only partially defined at
977 # any place in the configuration, this validator validates that actual
978 # trace, stream, and event types are all complete and valid. Therefore
979 # an invalid, but unusued type alias is accepted.
980 class _MetadataTypesHistologyValidator
:
982 self
._type
_to
_validate
_type
_histology
_func
= {
983 metadata
.Integer
: self
._validate
_integer
_histology
,
984 metadata
.FloatingPoint
: self
._validate
_float
_histology
,
985 metadata
.Enum
: self
._validate
_enum
_histology
,
986 metadata
.String
: self
._validate
_string
_histology
,
987 metadata
.Struct
: self
._validate
_struct
_histology
,
988 metadata
.Array
: self
._validate
_array
_histology
,
989 metadata
.Variant
: self
._validate
_variant
_histology
,
992 def _validate_integer_histology(self
, t
):
995 raise ConfigError('missing integer type\'s size')
997 def _validate_float_histology(self
, t
):
998 # exponent digits is set
999 if t
.exp_size
is None:
1000 raise ConfigError('missing floating point number type\'s exponent size')
1002 # mantissa digits is set
1003 if t
.mant_size
is None:
1004 raise ConfigError('missing floating point number type\'s mantissa size')
1006 # exponent and mantissa sum is a multiple of 8
1007 if (t
.exp_size
+ t
.mant_size
) % 8 != 0:
1008 raise ConfigError('floating point number type\'s mantissa and exponent sizes sum must be a multiple of 8')
1010 def _validate_enum_histology(self
, t
):
1011 # integer type is set
1012 if t
.value_type
is None:
1013 raise ConfigError('missing enumeration type\'s value type')
1015 # there's at least one member
1017 raise ConfigError('enumeration type needs at least one member')
1019 # no overlapping values and all values are valid considering
1023 if t
.value_type
.signed
:
1024 value_min
= -(1 << t
.value_type
.size
- 1)
1025 value_max
= (1 << (t
.value_type
.size
- 1)) - 1
1028 value_max
= (1 << t
.value_type
.size
) - 1
1030 for label
, value
in t
.members
.items():
1032 if value
[0] <= rg
[1] and rg
[0] <= value
[1]:
1033 raise ConfigError('enumeration type\'s member "{}" overlaps another member'.format(label
))
1035 fmt
= 'enumeration type\'s member "{}": value {} is outside the value type range [{}, {}]'
1037 if value
[0] < value_min
or value
[0] > value_max
:
1038 raise ConfigError(fmt
.format(label
, value
[0], value_min
, value_max
))
1040 if value
[1] < value_min
or value
[1] > value_max
:
1041 raise ConfigError(fmt
.format(label
, value
[1], value_min
, value_max
))
1043 ranges
.append(value
)
1045 def _validate_string_histology(self
, t
):
1049 def _validate_struct_histology(self
, t
):
1050 # all fields are valid
1051 for field_name
, field_type
in t
.fields
.items():
1053 self
._validate
_type
_histology
(field_type
)
1054 except Exception as e
:
1055 raise ConfigError('invalid structure type\'s field "{}"'.format(field_name
), e
)
1057 def _validate_array_histology(self
, t
):
1059 if t
.length
is None:
1060 raise ConfigError('missing array type\'s length')
1062 # element type is set
1063 if t
.element_type
is None:
1064 raise ConfigError('missing array type\'s element type')
1066 # element type is valid
1068 self
._validate
_type
_histology
(t
.element_type
)
1069 except Exception as e
:
1070 raise ConfigError('invalid array type\'s element type', e
)
1072 def _validate_variant_histology(self
, t
):
1075 raise ConfigError('missing variant type\'s tag')
1077 # there's at least one type
1079 raise ConfigError('variant type needs at least one type')
1081 # all types are valid
1082 for type_name
, type_t
in t
.types
.items():
1084 self
._validate
_type
_histology
(type_t
)
1085 except Exception as e
:
1086 raise ConfigError('invalid variant type\'s type "{}"'.format(type_name
), e
)
1088 def _validate_type_histology(self
, t
):
1092 self
._type
_to
_validate
_type
_histology
_func
[type(t
)](t
)
1094 def _validate_entity_type_histology(self
, t
):
1098 if type(t
) is not metadata
.Struct
:
1099 raise ConfigError('expecting a structure type')
1101 self
._validate
_type
_histology
(t
)
1103 def _validate_event_types_histology(self
, ev
):
1106 # validate event context type
1108 self
._validate
_entity
_type
_histology
(ev
.context_type
)
1109 except Exception as e
:
1110 raise ConfigError('invalid event context type for event "{}"'.format(ev_name
), e
)
1112 # validate event payload type
1113 if ev
.payload_type
is None:
1114 raise ConfigError('event payload type must exist in event "{}"'.format(ev_name
))
1116 # TODO: also check arrays, sequences, and variants
1117 if type(ev
.payload_type
) is metadata
.Struct
:
1118 if not ev
.payload_type
.fields
:
1119 raise ConfigError('event payload type must have at least one field for event "{}"'.format(ev_name
))
1122 self
._validate
_entity
_type
_histology
(ev
.payload_type
)
1123 except Exception as e
:
1124 raise ConfigError('invalid event payload type for event "{}"'.format(ev_name
), e
)
1126 def _validate_stream_types_histology(self
, stream
):
1127 stream_name
= stream
.name
1129 # validate stream packet context type
1131 self
._validate
_entity
_type
_histology
(stream
.packet_context_type
)
1132 except Exception as e
:
1133 raise ConfigError('invalid stream packet context type for stream "{}"'.format(stream_name
), e
)
1135 # validate stream event header type
1137 self
._validate
_entity
_type
_histology
(stream
.event_header_type
)
1138 except Exception as e
:
1139 raise ConfigError('invalid stream event header type for stream "{}"'.format(stream_name
), e
)
1141 # validate stream event context type
1143 self
._validate
_entity
_type
_histology
(stream
.event_context_type
)
1144 except Exception as e
:
1145 raise ConfigError('invalid stream event context type for stream "{}"'.format(stream_name
), e
)
1148 for ev
in stream
.events
.values():
1150 self
._validate
_event
_types
_histology
(ev
)
1151 except Exception as e
:
1152 raise ConfigError('invalid event in stream "{}"'.format(stream_name
), e
)
1154 def validate(self
, meta
):
1155 # validate trace packet header type
1157 self
._validate
_entity
_type
_histology
(meta
.trace
.packet_header_type
)
1158 except Exception as e
:
1159 raise ConfigError('invalid trace packet header type', e
)
1162 for stream
in meta
.streams
.values():
1163 self
._validate
_stream
_types
_histology
(stream
)
1166 class _YamlConfigParser
:
1167 def __init__(self
, include_dirs
, ignore_include_not_found
, dump_config
):
1168 self
._class
_name
_to
_create
_type
_func
= {
1169 'int': self
._create
_integer
,
1170 'integer': self
._create
_integer
,
1171 'flt': self
._create
_float
,
1172 'float': self
._create
_float
,
1173 'floating-point': self
._create
_float
,
1174 'enum': self
._create
_enum
,
1175 'enumeration': self
._create
_enum
,
1176 'str': self
._create
_string
,
1177 'string': self
._create
_string
,
1178 'struct': self
._create
_struct
,
1179 'structure': self
._create
_struct
,
1180 'array': self
._create
_array
,
1181 'var': self
._create
_variant
,
1182 'variant': self
._create
_variant
,
1184 self
._type
_to
_create
_type
_func
= {
1185 metadata
.Integer
: self
._create
_integer
,
1186 metadata
.FloatingPoint
: self
._create
_float
,
1187 metadata
.Enum
: self
._create
_enum
,
1188 metadata
.String
: self
._create
_string
,
1189 metadata
.Struct
: self
._create
_struct
,
1190 metadata
.Array
: self
._create
_array
,
1191 metadata
.Variant
: self
._create
_variant
,
1193 self
._include
_dirs
= include_dirs
1194 self
._ignore
_include
_not
_found
= ignore_include_not_found
1195 self
._dump
_config
= dump_config
1197 def _set_byte_order(self
, metadata_node
):
1198 if 'trace' not in metadata_node
:
1199 raise ConfigError('missing "trace" property (metadata)')
1201 trace_node
= metadata_node
['trace']
1203 if not _is_assoc_array_prop(trace_node
):
1204 raise ConfigError('"trace" property (metadata) must be an associative array')
1206 if 'byte-order' not in trace_node
:
1207 raise ConfigError('missing "byte-order" property (trace)')
1209 bo_node
= trace_node
['byte-order']
1211 if not _is_str_prop(bo_node
):
1212 raise ConfigError('"byte-order" property of trace object must be a string ("le" or "be")')
1214 self
._bo
= _byte_order_str_to_bo(bo_node
)
1216 if self
._bo
is None:
1217 raise ConfigError('invalid "byte-order" property (trace): must be "le" or "be"')
1219 def _lookup_type_alias(self
, name
):
1220 if name
in self
._tas
:
1221 return copy
.deepcopy(self
._tas
[name
])
1223 def _set_int_clock_prop_mapping(self
, int_obj
, prop_mapping_node
):
1224 unk_prop
= _get_first_unknown_prop(prop_mapping_node
, ['type', 'name', 'property'])
1227 raise ConfigError('unknown property in integer type object\'s clock property mapping: "{}"'.format(unk_prop
))
1229 if 'name' not in prop_mapping_node
:
1230 raise ConfigError('missing "name" property in integer type object\'s clock property mapping')
1232 if 'property' not in prop_mapping_node
:
1233 raise ConfigError('missing "property" property in integer type object\'s clock property mapping')
1235 clock_name
= prop_mapping_node
['name']
1236 prop
= prop_mapping_node
['property']
1238 if not _is_str_prop(clock_name
):
1239 raise ConfigError('"name" property of integer type object\'s clock property mapping must be a string')
1241 if not _is_str_prop(prop
):
1242 raise ConfigError('"property" property of integer type object\'s clock property mapping must be a string')
1244 if clock_name
not in self
._clocks
:
1245 raise ConfigError('invalid clock name "{}" in integer type object\'s clock property mapping'.format(clock_name
))
1248 raise ConfigError('invalid "property" property in integer type object\'s clock property mapping: "{}"'.format(prop
))
1250 mapped_clock
= self
._clocks
[clock_name
]
1251 int_obj
.property_mappings
.append(metadata
.PropertyMapping(mapped_clock
, prop
))
1253 def _get_first_unknown_type_prop(self
, type_node
, known_props
):
1254 kp
= known_props
+ ['inherit', 'class']
1256 if self
._version
>= 201:
1257 kp
.append('$inherit')
1259 return _get_first_unknown_prop(type_node
, kp
)
1261 def _create_integer(self
, obj
, node
):
1263 # create integer object
1264 obj
= metadata
.Integer()
1266 unk_prop
= self
._get
_first
_unknown
_type
_prop
(node
, [
1273 'property-mappings',
1277 raise ConfigError('unknown integer type object property: "{}"'.format(unk_prop
))
1283 if not _is_int_prop(size
):
1284 raise ConfigError('"size" property of integer type object must be an integer')
1287 raise ConfigError('invalid integer size: {}'.format(size
))
1293 align
= node
['align']
1296 obj
.set_default_align()
1298 if not _is_int_prop(align
):
1299 raise ConfigError('"align" property of integer type object must be an integer')
1301 if not _is_valid_alignment(align
):
1302 raise ConfigError('invalid alignment: {}'.format(align
))
1307 if 'signed' in node
:
1308 signed
= node
['signed']
1311 obj
.set_default_signed()
1313 if not _is_bool_prop(signed
):
1314 raise ConfigError('"signed" property of integer type object must be a boolean')
1319 if 'byte-order' in node
:
1320 byte_order
= node
['byte-order']
1322 if byte_order
is None:
1323 obj
.byte_order
= self
._bo
1325 if not _is_str_prop(byte_order
):
1326 raise ConfigError('"byte-order" property of integer type object must be a string ("le" or "be")')
1328 byte_order
= _byte_order_str_to_bo(byte_order
)
1330 if byte_order
is None:
1331 raise ConfigError('invalid "byte-order" property in integer type object')
1333 obj
.byte_order
= byte_order
1335 obj
.byte_order
= self
._bo
1342 obj
.set_default_base()
1344 if not _is_str_prop(base
):
1345 raise ConfigError('"base" property of integer type object must be a string ("bin", "oct", "dec", or "hex")')
1356 raise ConfigError('unknown "base" property value: "{}" ("bin", "oct", "dec", and "hex" are accepted)'.format(base
))
1361 if 'encoding' in node
:
1362 encoding
= node
['encoding']
1364 if encoding
is None:
1365 obj
.set_default_encoding()
1367 if not _is_str_prop(encoding
):
1368 raise ConfigError('"encoding" property of integer type object must be a string ("none", "ascii", or "utf-8")')
1370 encoding
= _encoding_str_to_encoding(encoding
)
1372 if encoding
is None:
1373 raise ConfigError('invalid "encoding" property in integer type object')
1375 obj
.encoding
= encoding
1378 if 'property-mappings' in node
:
1379 prop_mappings
= node
['property-mappings']
1381 if prop_mappings
is None:
1382 obj
.set_default_property_mappings()
1384 if not _is_array_prop(prop_mappings
):
1385 raise ConfigError('"property-mappings" property of integer type object must be an array')
1387 if len(prop_mappings
) > 1:
1388 raise ConfigError('length of "property-mappings" array in integer type object must be 1')
1390 for index
, prop_mapping
in enumerate(prop_mappings
):
1391 if not _is_assoc_array_prop(prop_mapping
):
1392 raise ConfigError('elements of "property-mappings" property of integer type object must be associative arrays')
1394 if 'type' not in prop_mapping
:
1395 raise ConfigError('missing "type" property in integer type object\'s "property-mappings" array\'s element #{}'.format(index
))
1397 prop_type
= prop_mapping
['type']
1399 if not _is_str_prop(prop_type
):
1400 raise ConfigError('"type" property of integer type object\'s "property-mappings" array\'s element #{} must be a string'.format(index
))
1402 if prop_type
== 'clock':
1403 self
._set
_int
_clock
_prop
_mapping
(obj
, prop_mapping
)
1405 raise ConfigError('unknown property mapping type "{}" in integer type object\'s "property-mappings" array\'s element #{}'.format(prop_type
, index
))
1409 def _create_float(self
, obj
, node
):
1411 # create floating point number object
1412 obj
= metadata
.FloatingPoint()
1414 unk_prop
= self
._get
_first
_unknown
_type
_prop
(node
, [
1421 raise ConfigError('unknown floating point number type object property: "{}"'.format(unk_prop
))
1427 if not _is_assoc_array_prop(size
):
1428 raise ConfigError('"size" property of floating point number type object must be an associative array')
1430 unk_prop
= _get_first_unknown_prop(size
, ['exp', 'mant'])
1433 raise ConfigError('unknown floating point number type object\'s "size" property: "{}"'.format(unk_prop
))
1438 if not _is_int_prop(exp
):
1439 raise ConfigError('"exp" property of floating point number type object\'s "size" property must be an integer')
1442 raise ConfigError('invalid floating point number exponent size: {}')
1449 if not _is_int_prop(mant
):
1450 raise ConfigError('"mant" property of floating point number type object\'s "size" property must be an integer')
1453 raise ConfigError('invalid floating point number mantissa size: {}')
1455 obj
.mant_size
= mant
1459 align
= node
['align']
1462 obj
.set_default_align()
1464 if not _is_int_prop(align
):
1465 raise ConfigError('"align" property of floating point number type object must be an integer')
1467 if not _is_valid_alignment(align
):
1468 raise ConfigError('invalid alignment: {}'.format(align
))
1473 if 'byte-order' in node
:
1474 byte_order
= node
['byte-order']
1476 if byte_order
is None:
1477 obj
.byte_order
= self
._bo
1479 if not _is_str_prop(byte_order
):
1480 raise ConfigError('"byte-order" property of floating point number type object must be a string ("le" or "be")')
1482 byte_order
= _byte_order_str_to_bo(byte_order
)
1484 if byte_order
is None:
1485 raise ConfigError('invalid "byte-order" property in floating point number type object')
1487 obj
.byte_order
= self
._bo
1491 def _create_enum(self
, obj
, node
):
1493 # create enumeration object
1494 obj
= metadata
.Enum()
1496 unk_prop
= self
._get
_first
_unknown
_type
_prop
(node
, [
1502 raise ConfigError('unknown enumeration type object property: "{}"'.format(unk_prop
))
1505 if 'value-type' in node
:
1506 value_type_node
= node
['value-type']
1509 obj
.value_type
= self
._create
_type
(value_type_node
)
1510 except Exception as e
:
1511 raise ConfigError('cannot create enumeration type\'s integer type', e
)
1514 if 'members' in node
:
1515 members_node
= node
['members']
1517 if not _is_array_prop(members_node
):
1518 raise ConfigError('"members" property of enumeration type object must be an array')
1521 last_value
= obj
.last_value
1523 if last_value
is None:
1526 cur
= last_value
+ 1
1528 for index
, m_node
in enumerate(members_node
):
1529 if not _is_str_prop(m_node
) and not _is_assoc_array_prop(m_node
):
1530 raise ConfigError('invalid enumeration member #{}: expecting a string or an associative array'.format(index
))
1532 if _is_str_prop(m_node
):
1537 unk_prop
= _get_first_unknown_prop(m_node
, [
1543 raise ConfigError('unknown enumeration type member object property: "{}"'.format(unk_prop
))
1545 if 'label' not in m_node
:
1546 raise ConfigError('missing "label" property in enumeration member #{}'.format(index
))
1548 label
= m_node
['label']
1550 if not _is_str_prop(label
):
1551 raise ConfigError('"label" property of enumeration member #{} must be a string'.format(index
))
1553 if 'value' not in m_node
:
1554 raise ConfigError('missing "value" property in enumeration member ("{}")'.format(label
))
1556 value
= m_node
['value']
1558 if not _is_int_prop(value
) and not _is_array_prop(value
):
1559 raise ConfigError('invalid enumeration member ("{}"): expecting an integer or an array'.format(label
))
1561 if _is_int_prop(value
):
1563 value
= (value
, value
)
1566 raise ConfigError('invalid enumeration member ("{}"): range must have exactly two items'.format(label
))
1572 raise ConfigError('invalid enumeration member ("{}"): invalid range ({} > {})'.format(label
, mn
, mx
))
1577 obj
.members
[label
] = value
1581 def _create_string(self
, obj
, node
):
1583 # create string object
1584 obj
= metadata
.String()
1586 unk_prop
= self
._get
_first
_unknown
_type
_prop
(node
, [
1591 raise ConfigError('unknown string type object property: "{}"'.format(unk_prop
))
1594 if 'encoding' in node
:
1595 encoding
= node
['encoding']
1597 if encoding
is None:
1598 obj
.set_default_encoding()
1600 if not _is_str_prop(encoding
):
1601 raise ConfigError('"encoding" property of string type object must be a string ("none", "ascii", or "utf-8")')
1603 encoding
= _encoding_str_to_encoding(encoding
)
1605 if encoding
is None:
1606 raise ConfigError('invalid "encoding" property in string type object')
1608 obj
.encoding
= encoding
1612 def _create_struct(self
, obj
, node
):
1614 # create structure object
1615 obj
= metadata
.Struct()
1617 unk_prop
= self
._get
_first
_unknown
_type
_prop
(node
, [
1623 raise ConfigError('unknown string type object property: "{}"'.format(unk_prop
))
1626 if 'min-align' in node
:
1627 min_align
= node
['min-align']
1629 if not _is_int_prop(min_align
):
1630 raise ConfigError('"min-align" property of structure type object must be an integer')
1632 if not _is_valid_alignment(min_align
):
1633 raise ConfigError('invalid minimum alignment: {}'.format(min_align
))
1635 obj
.min_align
= min_align
1638 if 'fields' in node
:
1639 fields
= node
['fields']
1641 if not _is_assoc_array_prop(fields
):
1642 raise ConfigError('"fields" property of structure type object must be an associative array')
1644 for field_name
, field_node
in fields
.items():
1645 if not is_valid_identifier(field_name
):
1646 raise ConfigError('"{}" is not a valid field name for structure type'.format(field_name
))
1649 obj
.fields
[field_name
] = self
._create
_type
(field_node
)
1650 except Exception as e
:
1651 raise ConfigError('cannot create structure type\'s field "{}"'.format(field_name
), e
)
1655 def _create_array(self
, obj
, node
):
1657 # create array object
1658 obj
= metadata
.Array()
1660 unk_prop
= self
._get
_first
_unknown
_type
_prop
(node
, [
1666 raise ConfigError('unknown array type object property: "{}"'.format(unk_prop
))
1669 if 'length' in node
:
1670 length
= node
['length']
1672 if not _is_int_prop(length
) and not _is_str_prop(length
):
1673 raise ConfigError('"length" property of array type object must be an integer or a string')
1675 if type(length
) is int and length
< 0:
1676 raise ConfigError('invalid static array length: {}'.format(length
))
1681 if 'element-type' in node
:
1682 element_type_node
= node
['element-type']
1685 obj
.element_type
= self
._create
_type
(node
['element-type'])
1686 except Exception as e
:
1687 raise ConfigError('cannot create array type\'s element type', e
)
1691 def _create_variant(self
, obj
, node
):
1693 # create variant object
1694 obj
= metadata
.Variant()
1696 unk_prop
= self
._get
_first
_unknown
_type
_prop
(node
, [
1702 raise ConfigError('unknown variant type object property: "{}"'.format(unk_prop
))
1708 if not _is_str_prop(tag
):
1709 raise ConfigError('"tag" property of variant type object must be a string')
1711 # do not validate variant tag for the moment; will be done in a
1717 types
= node
['types']
1719 if not _is_assoc_array_prop(types
):
1720 raise ConfigError('"types" property of variant type object must be an associative array')
1722 # do not validate type names for the moment; will be done in a
1724 for type_name
, type_node
in types
.items():
1725 if not is_valid_identifier(type_name
):
1726 raise ConfigError('"{}" is not a valid type name for variant type'.format(type_name
))
1729 obj
.types
[type_name
] = self
._create
_type
(type_node
)
1730 except Exception as e
:
1731 raise ConfigError('cannot create variant type\'s type "{}"'.format(type_name
), e
)
1735 def _create_type(self
, type_node
):
1736 if type(type_node
) is str:
1737 t
= self
._lookup
_type
_alias
(type_node
)
1740 raise ConfigError('unknown type alias "{}"'.format(type_node
))
1744 if not _is_assoc_array_prop(type_node
):
1745 raise ConfigError('type objects must be associative arrays or strings (type alias name)')
1752 if self
._version
>= 200:
1753 if 'inherit' in type_node
:
1754 inherit_prop
= 'inherit'
1755 inherit_node
= type_node
[inherit_prop
]
1757 if self
._version
>= 201:
1758 if '$inherit' in type_node
:
1759 if inherit_node
is not None:
1760 raise ConfigError('cannot specify both "inherit" and "$inherit" properties of type object: prefer "$inherit"')
1762 inherit_prop
= '$inherit'
1763 inherit_node
= type_node
[inherit_prop
]
1765 if inherit_node
is not None and 'class' in type_node
:
1766 raise ConfigError('cannot specify both "{}" and "class" properties in type object'.format(inherit_prop
))
1768 if inherit_node
is not None:
1769 if not _is_str_prop(inherit_node
):
1770 raise ConfigError('"{}" property of type object must be a string'.format(inherit_prop
))
1772 base
= self
._lookup
_type
_alias
(inherit_node
)
1775 raise ConfigError('cannot inherit from type alias "{}": type alias does not exist at this point'.format(inherit_node
))
1777 func
= self
._type
_to
_create
_type
_func
[type(base
)]
1779 if 'class' not in type_node
:
1780 raise ConfigError('type objects which do not inherit must have a "class" property')
1782 class_name
= type_node
['class']
1784 if type(class_name
) is not str:
1785 raise ConfigError('type objects\' "class" property must be a string')
1787 if class_name
not in self
._class
_name
_to
_create
_type
_func
:
1788 raise ConfigError('unknown type class "{}"'.format(class_name
))
1791 func
= self
._class
_name
_to
_create
_type
_func
[class_name
]
1793 return func(base
, type_node
)
1795 def _register_type_aliases(self
, metadata_node
):
1798 if 'type-aliases' not in metadata_node
:
1801 ta_node
= metadata_node
['type-aliases']
1803 if not _is_assoc_array_prop(ta_node
):
1804 raise ConfigError('"type-aliases" property (metadata) must be an associative array')
1806 for ta_name
, ta_type
in ta_node
.items():
1807 if ta_name
in self
._tas
:
1808 raise ConfigError('duplicate type alias "{}"'.format(ta_name
))
1811 t
= self
._create
_type
(ta_type
)
1812 except Exception as e
:
1813 raise ConfigError('cannot create type alias "{}"'.format(ta_name
), e
)
1815 self
._tas
[ta_name
] = t
1817 def _create_clock(self
, node
):
1818 # create clock object
1819 clock
= metadata
.Clock()
1821 if not _is_assoc_array_prop(node
):
1822 raise ConfigError('clock objects must be associative arrays')
1834 if self
._version
>= 201:
1835 known_props
.append('$return-ctype')
1837 unk_prop
= _get_first_unknown_prop(node
, known_props
)
1840 raise ConfigError('unknown clock object property: "{}"'.format(unk_prop
))
1844 uuidp
= node
['uuid']
1846 if not _is_str_prop(uuidp
):
1847 raise ConfigError('"uuid" property of clock object must be a string')
1850 uuidp
= uuid
.UUID(uuidp
)
1852 raise ConfigError('malformed UUID (clock object): "{}"'.format(uuidp
))
1857 if 'description' in node
:
1858 desc
= node
['description']
1860 if not _is_str_prop(desc
):
1861 raise ConfigError('"description" property of clock object must be a string')
1863 clock
.description
= desc
1869 if not _is_int_prop(freq
):
1870 raise ConfigError('"freq" property of clock object must be an integer')
1873 raise ConfigError('invalid clock frequency: {}'.format(freq
))
1878 if 'error-cycles' in node
:
1879 error_cycles
= node
['error-cycles']
1881 if not _is_int_prop(error_cycles
):
1882 raise ConfigError('"error-cycles" property of clock object must be an integer')
1884 if error_cycles
< 0:
1885 raise ConfigError('invalid clock error cycles: {}'.format(error_cycles
))
1887 clock
.error_cycles
= error_cycles
1890 if 'offset' in node
:
1891 offset
= node
['offset']
1893 if not _is_assoc_array_prop(offset
):
1894 raise ConfigError('"offset" property of clock object must be an associative array')
1896 unk_prop
= _get_first_unknown_prop(offset
, ['cycles', 'seconds'])
1899 raise ConfigError('unknown clock object\'s offset property: "{}"'.format(unk_prop
))
1902 if 'cycles' in offset
:
1903 offset_cycles
= offset
['cycles']
1905 if not _is_int_prop(offset_cycles
):
1906 raise ConfigError('"cycles" property of clock object\'s offset property must be an integer')
1908 if offset_cycles
< 0:
1909 raise ConfigError('invalid clock offset cycles: {}'.format(offset_cycles
))
1911 clock
.offset_cycles
= offset_cycles
1914 if 'seconds' in offset
:
1915 offset_seconds
= offset
['seconds']
1917 if not _is_int_prop(offset_seconds
):
1918 raise ConfigError('"seconds" property of clock object\'s offset property must be an integer')
1920 if offset_seconds
< 0:
1921 raise ConfigError('invalid clock offset seconds: {}'.format(offset_seconds
))
1923 clock
.offset_seconds
= offset_seconds
1926 if 'absolute' in node
:
1927 absolute
= node
['absolute']
1929 if not _is_bool_prop(absolute
):
1930 raise ConfigError('"absolute" property of clock object must be a boolean')
1932 clock
.absolute
= absolute
1935 # v2.0: "return-ctype"
1936 # v2.1+: "$return-ctype"
1937 return_ctype_node
= None
1939 if self
._version
>= 200:
1940 if 'return-ctype' in node
:
1941 return_ctype_prop
= 'return-ctype'
1942 return_ctype_node
= node
[return_ctype_prop
]
1944 if self
._version
>= 201:
1945 if '$return-ctype' in node
:
1946 if return_ctype_node
is not None:
1947 raise ConfigError('cannot specify both "return-ctype" and "$return-ctype" properties of clock object: prefer "$return-ctype"')
1949 return_ctype_prop
= '$return-ctype'
1950 return_ctype_node
= node
[return_ctype_prop
]
1952 if return_ctype_node
is not None:
1953 if not _is_str_prop(return_ctype_node
):
1954 raise ConfigError('"{}" property of clock object must be a string'.format(return_ctype_prop
))
1956 clock
.return_ctype
= return_ctype_node
1960 def _register_clocks(self
, metadata_node
):
1961 self
._clocks
= collections
.OrderedDict()
1963 if 'clocks' not in metadata_node
:
1966 clocks_node
= metadata_node
['clocks']
1968 if not _is_assoc_array_prop(clocks_node
):
1969 raise ConfigError('"clocks" property (metadata) must be an associative array')
1971 for clock_name
, clock_node
in clocks_node
.items():
1972 if not is_valid_identifier(clock_name
):
1973 raise ConfigError('invalid clock name: "{}"'.format(clock_name
))
1975 if clock_name
in self
._clocks
:
1976 raise ConfigError('duplicate clock "{}"'.format(clock_name
))
1979 clock
= self
._create
_clock
(clock_node
)
1980 except Exception as e
:
1981 raise ConfigError('cannot create clock "{}"'.format(clock_name
), e
)
1983 clock
.name
= clock_name
1984 self
._clocks
[clock_name
] = clock
1986 def _create_env(self
, metadata_node
):
1987 env
= collections
.OrderedDict()
1989 if 'env' not in metadata_node
:
1992 env_node
= metadata_node
['env']
1994 if not _is_assoc_array_prop(env_node
):
1995 raise ConfigError('"env" property (metadata) must be an associative array')
1997 for env_name
, env_value
in env_node
.items():
1999 raise ConfigError('duplicate environment variable "{}"'.format(env_name
))
2001 if not is_valid_identifier(env_name
):
2002 raise ConfigError('invalid environment variable name: "{}"'.format(env_name
))
2004 if not _is_int_prop(env_value
) and not _is_str_prop(env_value
):
2005 raise ConfigError('invalid environment variable value ("{}"): expecting integer or string'.format(env_name
))
2007 env
[env_name
] = env_value
2011 def _register_log_levels(self
, metadata_node
):
2012 self
._log
_levels
= dict()
2015 # v2.0: "log-levels"
2016 # v2.1+: "$log-levels"
2017 log_levels_node
= None
2019 if self
._version
>= 200:
2020 if 'log-levels' in metadata_node
:
2021 log_levels_prop
= 'log-levels'
2022 log_levels_node
= metadata_node
[log_levels_prop
]
2024 if self
._version
>= 201:
2025 if '$log-levels' in metadata_node
:
2026 if log_levels_node
is not None:
2027 raise ConfigError('cannot specify both "log-levels" and "$log-levels" properties of metadata object: prefer "$log-levels"')
2029 log_levels_prop
= '$log-levels'
2030 log_levels_node
= metadata_node
[log_levels_prop
]
2032 if log_levels_node
is None:
2035 if not _is_assoc_array_prop(log_levels_node
):
2036 raise ConfigError('"{}" property (metadata) must be an associative array'.format(log_levels_prop
))
2038 for ll_name
, ll_value
in log_levels_node
.items():
2039 if ll_name
in self
._log
_levels
:
2040 raise ConfigError('duplicate log level entry "{}"'.format(ll_name
))
2042 if not _is_int_prop(ll_value
):
2043 raise ConfigError('invalid log level entry ("{}"): expecting an integer'.format(ll_name
))
2046 raise ConfigError('invalid log level entry ("{}"): log level value must be positive'.format(ll_name
))
2048 self
._log
_levels
[ll_name
] = ll_value
2050 def _create_trace(self
, metadata_node
):
2051 # create trace object
2052 trace
= metadata
.Trace()
2054 if 'trace' not in metadata_node
:
2055 raise ConfigError('missing "trace" property (metadata)')
2057 trace_node
= metadata_node
['trace']
2059 if not _is_assoc_array_prop(trace_node
):
2060 raise ConfigError('"trace" property (metadata) must be an associative array')
2062 unk_prop
= _get_first_unknown_prop(trace_node
, [
2065 'packet-header-type',
2069 raise ConfigError('unknown trace object property: "{}"'.format(unk_prop
))
2071 # set byte order (already parsed)
2072 trace
.byte_order
= self
._bo
2075 if 'uuid' in trace_node
:
2076 uuidp
= trace_node
['uuid']
2078 if not _is_str_prop(uuidp
):
2079 raise ConfigError('"uuid" property of trace object must be a string')
2082 uuidp
= uuid
.uuid1()
2085 uuidp
= uuid
.UUID(uuidp
)
2087 raise ConfigError('malformed UUID (trace object): "{}"'.format(uuidp
))
2091 # packet header type
2092 if 'packet-header-type' in trace_node
:
2094 ph_type
= self
._create
_type
(trace_node
['packet-header-type'])
2095 except Exception as e
:
2096 raise ConfigError('cannot create packet header type (trace)', e
)
2098 trace
.packet_header_type
= ph_type
2102 def _lookup_log_level(self
, ll
):
2103 if _is_int_prop(ll
):
2105 elif _is_str_prop(ll
) and ll
in self
._log
_levels
:
2106 return self
._log
_levels
[ll
]
2108 def _create_event(self
, event_node
):
2109 event
= metadata
.Event()
2111 if not _is_assoc_array_prop(event_node
):
2112 raise ConfigError('event objects must be associative arrays')
2114 unk_prop
= _get_first_unknown_prop(event_node
, [
2121 raise ConfigError('unknown event object property: "{}"'.format(unk_prop
))
2123 if 'log-level' in event_node
:
2124 ll_node
= event_node
['log-level']
2126 if _is_str_prop(ll_node
):
2127 ll_value
= self
._lookup
_log
_level
(event_node
['log-level'])
2129 if ll_value
is None:
2130 raise ConfigError('cannot find log level "{}"'.format(ll_node
))
2132 ll
= metadata
.LogLevel(event_node
['log-level'], ll_value
)
2133 elif _is_int_prop(ll_node
):
2135 raise ConfigError('invalid log level value {}: value must be positive'.format(ll_node
))
2137 ll
= metadata
.LogLevel(None, ll_node
)
2139 raise ConfigError('"log-level" property must be either a string or an integer')
2141 event
.log_level
= ll
2143 if 'context-type' in event_node
:
2145 t
= self
._create
_type
(event_node
['context-type'])
2146 except Exception as e
:
2147 raise ConfigError('cannot create event\'s context type object', e
)
2149 event
.context_type
= t
2151 if 'payload-type' not in event_node
:
2152 raise ConfigError('missing "payload-type" property in event object')
2155 t
= self
._create
_type
(event_node
['payload-type'])
2156 except Exception as e
:
2157 raise ConfigError('cannot create event\'s payload type object', e
)
2159 event
.payload_type
= t
2163 def _create_stream(self
, stream_node
):
2164 stream
= metadata
.Stream()
2166 if not _is_assoc_array_prop(stream_node
):
2167 raise ConfigError('stream objects must be associative arrays')
2169 unk_prop
= _get_first_unknown_prop(stream_node
, [
2170 'packet-context-type',
2171 'event-header-type',
2172 'event-context-type',
2177 raise ConfigError('unknown stream object property: "{}"'.format(unk_prop
))
2179 if 'packet-context-type' in stream_node
:
2181 t
= self
._create
_type
(stream_node
['packet-context-type'])
2182 except Exception as e
:
2183 raise ConfigError('cannot create stream\'s packet context type object', e
)
2185 stream
.packet_context_type
= t
2187 if 'event-header-type' in stream_node
:
2189 t
= self
._create
_type
(stream_node
['event-header-type'])
2190 except Exception as e
:
2191 raise ConfigError('cannot create stream\'s event header type object', e
)
2193 stream
.event_header_type
= t
2195 if 'event-context-type' in stream_node
:
2197 t
= self
._create
_type
(stream_node
['event-context-type'])
2198 except Exception as e
:
2199 raise ConfigError('cannot create stream\'s event context type object', e
)
2201 stream
.event_context_type
= t
2203 if 'events' not in stream_node
:
2204 raise ConfigError('missing "events" property in stream object')
2206 events
= stream_node
['events']
2208 if not _is_assoc_array_prop(events
):
2209 raise ConfigError('"events" property of stream object must be an associative array')
2212 raise ConfigError('at least one event is needed within a stream object')
2216 for ev_name
, ev_node
in events
.items():
2218 ev
= self
._create
_event
(ev_node
)
2219 except Exception as e
:
2220 raise ConfigError('cannot create event "{}"'.format(ev_name
), e
)
2224 stream
.events
[ev_name
] = ev
2229 def _create_streams(self
, metadata_node
):
2230 streams
= collections
.OrderedDict()
2232 if 'streams' not in metadata_node
:
2233 raise ConfigError('missing "streams" property (metadata)')
2235 streams_node
= metadata_node
['streams']
2237 if not _is_assoc_array_prop(streams_node
):
2238 raise ConfigError('"streams" property (metadata) must be an associative array')
2240 if not streams_node
:
2241 raise ConfigError('at least one stream is needed (metadata)')
2245 for stream_name
, stream_node
in streams_node
.items():
2247 stream
= self
._create
_stream
(stream_node
)
2248 except Exception as e
:
2249 raise ConfigError('cannot create stream "{}"'.format(stream_name
), e
)
2252 stream
.name
= str(stream_name
)
2253 streams
[stream_name
] = stream
2258 def _create_metadata(self
, root
):
2259 meta
= metadata
.Metadata()
2261 if 'metadata' not in root
:
2262 raise ConfigError('missing "metadata" property (configuration)')
2264 metadata_node
= root
['metadata']
2266 if not _is_assoc_array_prop(metadata_node
):
2267 raise ConfigError('"metadata" property (configuration) must be an associative array')
2278 if self
._version
>= 201:
2279 known_props
.append('$log-levels')
2281 unk_prop
= _get_first_unknown_prop(metadata_node
, known_props
)
2286 if unk_prop
== '$include':
2287 add
= ' (use version 2.1 or greater)'
2289 raise ConfigError('unknown metadata property{}: "{}"'.format(add
, unk_prop
))
2291 self
._set
_byte
_order
(metadata_node
)
2292 self
._register
_clocks
(metadata_node
)
2293 meta
.clocks
= self
._clocks
2294 self
._register
_type
_aliases
(metadata_node
)
2295 meta
.env
= self
._create
_env
(metadata_node
)
2296 meta
.trace
= self
._create
_trace
(metadata_node
)
2297 self
._register
_log
_levels
(metadata_node
)
2298 meta
.streams
= self
._create
_streams
(metadata_node
)
2302 def _get_version(self
, root
):
2303 if 'version' not in root
:
2304 raise ConfigError('missing "version" property (configuration)')
2306 version_node
= root
['version']
2308 if not _is_str_prop(version_node
):
2309 raise ConfigError('"version" property (configuration) must be a string')
2311 version_node
= version_node
.strip()
2313 if version_node
not in ['2.0', '2.1']:
2314 raise ConfigError('unsupported version ({}): versions 2.0 and 2.1 are supported'.format(version_node
))
2316 # convert version string to comparable version integer
2317 parts
= version_node
.split('.')
2318 version
= int(parts
[0]) * 100 + int(parts
[1])
2322 def _get_prefix(self
, root
):
2323 if 'prefix' not in root
:
2326 prefix_node
= root
['prefix']
2328 if not _is_str_prop(prefix_node
):
2329 raise ConfigError('"prefix" property (configuration) must be a string')
2331 if not is_valid_identifier(prefix_node
):
2332 raise ConfigError('"prefix" property (configuration) must be a valid C identifier')
2336 def _get_last_include_file(self
):
2337 if self
._include
_stack
:
2338 return self
._include
_stack
[-1]
2340 return self
._root
_yaml
_path
2342 def _load_include(self
, yaml_path
):
2343 for inc_dir
in self
._include
_dirs
:
2344 # current include dir + file name path
2345 # note: os.path.join() only takes the last arg if it's absolute
2346 inc_path
= os
.path
.join(inc_dir
, yaml_path
)
2348 # real path (symbolic links resolved)
2349 real_path
= os
.path
.realpath(inc_path
)
2351 # normalized path (weird stuff removed!)
2352 norm_path
= os
.path
.normpath(real_path
)
2354 if not os
.path
.isfile(norm_path
):
2355 # file does not exist: skip
2358 if norm_path
in self
._include
_stack
:
2359 base_path
= self
._get
_last
_include
_file
()
2360 raise ConfigError('in "{}": cannot recursively include file "{}"'.format(base_path
, norm_path
))
2362 self
._include
_stack
.append(norm_path
)
2365 return self
._yaml
_ordered
_load
(norm_path
)
2367 if not self
._ignore
_include
_not
_found
:
2368 base_path
= self
._get
_last
_include
_file
()
2369 raise ConfigError('in "{}": cannot include file "{}": file not found in include directories'.format(base_path
, yaml_path
))
2373 def _get_include_paths(self
, include_node
):
2374 if _is_str_prop(include_node
):
2375 return [include_node
]
2376 elif _is_array_prop(include_node
):
2377 for include_path
in include_node
:
2378 if not _is_str_prop(include_path
):
2379 raise ConfigError('invalid include property: expecting array of strings')
2383 raise ConfigError('invalid include property: expecting string or array of strings')
2385 def _update_node(self
, base_node
, overlay_node
):
2386 for olay_key
, olay_value
in overlay_node
.items():
2387 if olay_key
in base_node
:
2388 base_value
= base_node
[olay_key
]
2390 if _is_assoc_array_prop(olay_value
) and _is_assoc_array_prop(base_value
):
2391 # merge dictionaries
2392 self
._update
_node
(base_value
, olay_value
)
2393 elif _is_array_prop(olay_value
) and _is_array_prop(base_value
):
2394 # append extension array items to base items
2395 base_value
+= olay_value
2397 # fall back to replacing
2398 base_node
[olay_key
] = olay_value
2400 base_node
[olay_key
] = olay_value
2402 def _process_node_include(self
, last_overlay_node
, name
,
2403 process_base_include_cb
,
2404 process_children_include_cb
=None):
2405 if not _is_assoc_array_prop(last_overlay_node
):
2406 raise ConfigError('{} objects must be associative arrays'.format(name
))
2408 # process children inclusions first
2409 if process_children_include_cb
:
2410 process_children_include_cb(last_overlay_node
)
2412 if '$include' in last_overlay_node
:
2413 include_node
= last_overlay_node
['$include']
2416 return last_overlay_node
2418 include_paths
= self
._get
_include
_paths
(include_node
)
2419 cur_base_path
= self
._get
_last
_include
_file
()
2422 # keep the include paths and remove the include property
2423 include_paths
= copy
.deepcopy(include_paths
)
2424 del last_overlay_node
['$include']
2426 for include_path
in include_paths
:
2427 # load raw YAML from included file
2428 overlay_node
= self
._load
_include
(include_path
)
2430 if overlay_node
is None:
2431 # cannot find include file, but we're ignoring those
2432 # errors, otherwise _load_include() itself raises
2436 # recursively process includes
2438 overlay_node
= process_base_include_cb(overlay_node
)
2439 except Exception as e
:
2440 raise ConfigError('in "{}"'.format(cur_base_path
), e
)
2442 # pop include stack now that we're done including
2443 del self
._include
_stack
[-1]
2445 # at this point, base_node is fully resolved (does not
2446 # contain any include property)
2447 if base_node
is None:
2448 base_node
= overlay_node
2450 self
._update
_node
(base_node
, overlay_node
)
2452 # finally, we update the latest base node with our last overlay
2454 if base_node
is None:
2455 # nothing was included, which is possible when we're
2456 # ignoring include errors
2457 return last_overlay_node
2459 self
._update
_node
(base_node
, last_overlay_node
)
2463 def _process_event_include(self
, event_node
):
2464 return self
._process
_node
_include
(event_node
, 'event',
2465 self
._process
_event
_include
)
2467 def _process_stream_include(self
, stream_node
):
2468 def process_children_include(stream_node
):
2469 if 'events' in stream_node
:
2470 events_node
= stream_node
['events']
2472 if not _is_assoc_array_prop(events_node
):
2473 raise ConfigError('"events" property must be an associative array')
2475 events_node_keys
= list(events_node
.keys())
2477 for key
in events_node_keys
:
2478 event_node
= events_node
[key
]
2481 events_node
[key
] = self
._process
_event
_include
(event_node
)
2482 except Exception as e
:
2483 raise ConfigError('cannot process includes of event object "{}"'.format(key
), e
)
2485 return self
._process
_node
_include
(stream_node
, 'stream',
2486 self
._process
_stream
_include
,
2487 process_children_include
)
2489 def _process_trace_include(self
, trace_node
):
2490 return self
._process
_node
_include
(trace_node
, 'trace',
2491 self
._process
_trace
_include
)
2493 def _process_clock_include(self
, clock_node
):
2494 return self
._process
_node
_include
(clock_node
, 'clock',
2495 self
._process
_clock
_include
)
2497 def _process_metadata_include(self
, metadata_node
):
2498 def process_children_include(metadata_node
):
2499 if 'trace' in metadata_node
:
2500 metadata_node
['trace'] = self
._process
_trace
_include
(metadata_node
['trace'])
2502 if 'clocks' in metadata_node
:
2503 clocks_node
= metadata_node
['clocks']
2505 if not _is_assoc_array_prop(clocks_node
):
2506 raise ConfigError('"clocks" property (metadata) must be an associative array')
2508 clocks_node_keys
= list(clocks_node
.keys())
2510 for key
in clocks_node_keys
:
2511 clock_node
= clocks_node
[key
]
2514 clocks_node
[key
] = self
._process
_clock
_include
(clock_node
)
2515 except Exception as e
:
2516 raise ConfigError('cannot process includes of clock object "{}"'.format(key
), e
)
2518 if 'streams' in metadata_node
:
2519 streams_node
= metadata_node
['streams']
2521 if not _is_assoc_array_prop(streams_node
):
2522 raise ConfigError('"streams" property (metadata) must be an associative array')
2524 streams_node_keys
= list(streams_node
.keys())
2526 for key
in streams_node_keys
:
2527 stream_node
= streams_node
[key
]
2530 streams_node
[key
] = self
._process
_stream
_include
(stream_node
)
2531 except Exception as e
:
2532 raise ConfigError('cannot process includes of stream object "{}"'.format(key
), e
)
2534 return self
._process
_node
_include
(metadata_node
, 'metadata',
2535 self
._process
_metadata
_include
,
2536 process_children_include
)
2538 def _process_root_includes(self
, root
):
2539 # The following config objects support includes:
2546 # We need to process the event includes first, then the stream
2547 # includes, then the trace includes, and finally the metadata
2550 # In each object, only one of the $include and $include-replace
2551 # special properties is allowed.
2553 # We keep a stack of absolute paths to included files to detect
2555 if 'metadata' in root
:
2556 root
['metadata'] = self
._process
_metadata
_include
(root
['metadata'])
2560 def _yaml_ordered_dump(self
, node
, **kwds
):
2561 class ODumper(yaml
.Dumper
):
2564 def dict_representer(dumper
, node
):
2565 return dumper
.represent_mapping(yaml
.resolver
.BaseResolver
.DEFAULT_MAPPING_TAG
,
2568 ODumper
.add_representer(collections
.OrderedDict
, dict_representer
)
2570 return yaml
.dump(node
, Dumper
=ODumper
, **kwds
)
2572 def _yaml_ordered_load(self
, yaml_path
):
2573 class OLoader(yaml
.Loader
):
2576 def construct_mapping(loader
, node
):
2577 loader
.flatten_mapping(node
)
2579 return collections
.OrderedDict(loader
.construct_pairs(node
))
2581 OLoader
.add_constructor(yaml
.resolver
.BaseResolver
.DEFAULT_MAPPING_TAG
,
2586 with
open(yaml_path
, 'r') as f
:
2587 node
= yaml
.load(f
, OLoader
)
2588 except (OSError, IOError) as e
:
2589 raise ConfigError('cannot open file "{}"'.format(yaml_path
))
2590 except Exception as e
:
2591 raise ConfigError('unknown error while trying to load file "{}"'.format(yaml_path
), e
)
2593 # loaded node must be an associate array
2594 if not _is_assoc_array_prop(node
):
2595 raise ConfigError('root of YAML file "{}" must be an associative array'.format(yaml_path
))
2600 self
._version
= None
2601 self
._include
_stack
= []
2603 def parse(self
, yaml_path
):
2605 self
._root
_yaml
_path
= yaml_path
2608 root
= self
._yaml
_ordered
_load
(yaml_path
)
2609 except Exception as e
:
2610 raise ConfigError('cannot parse YAML file "{}"'.format(yaml_path
), e
)
2612 if not _is_assoc_array_prop(root
):
2613 raise ConfigError('configuration must be an associative array')
2615 unk_prop
= _get_first_unknown_prop(root
, [
2622 raise ConfigError('unknown configuration property: "{}"'.format(unk_prop
))
2624 # get the config version
2625 self
._version
= self
._get
_version
(root
)
2627 # process includes if supported
2628 if self
._version
>= 201:
2629 root
= self
._process
_root
_includes
(root
)
2631 # dump config if required
2632 if self
._dump
_config
:
2633 print(self
._yaml
_ordered
_dump
(root
, indent
=2,
2634 default_flow_style
=False))
2636 # get prefix and metadata
2637 prefix
= self
._get
_prefix
(root
)
2638 meta
= self
._create
_metadata
(root
)
2640 return Config(self
._version
, prefix
, meta
)
2643 def from_yaml_file(path
, include_dirs
, ignore_include_not_found
, dump_config
):
2645 parser
= _YamlConfigParser(include_dirs
, ignore_include_not_found
,
2647 cfg
= parser
.parse(path
)
2650 except Exception as e
:
2651 raise ConfigError('cannot create configuration from YAML file "{}"'.format(path
), e
)