142 lines
4.4 KiB
Python
142 lines
4.4 KiB
Python
from collections import OrderedDict
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from .base import _cls_init
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from .properties import EnumProperty
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from .registration import (
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_register_extension, _register_marking, _register_object,
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_register_observable,
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)
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from .registry import class_for_type
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def _get_properties_dict(properties):
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try:
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return OrderedDict(properties)
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except TypeError as e:
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raise ValueError(
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"properties must be dict-like, e.g. a list "
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"containing tuples. For example, "
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"[('property1', IntegerProperty())]",
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) from e
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def _custom_object_builder(cls, type, properties, version, base_class):
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prop_dict = _get_properties_dict(properties)
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class _CustomObject(cls, base_class):
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_type = type
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_properties = prop_dict
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def __init__(self, **kwargs):
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base_class.__init__(self, **kwargs)
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_cls_init(cls, self, kwargs)
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ext = getattr(self, 'with_extension', None)
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if ext and version != '2.0':
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if 'extensions' not in self._inner:
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self._inner['extensions'] = {}
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self._inner['extensions'][ext] = class_for_type(ext, version, "extensions")()
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_CustomObject.__name__ = cls.__name__
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_register_object(_CustomObject, version=version)
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return _CustomObject
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def _custom_marking_builder(cls, type, properties, version, base_class):
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prop_dict = _get_properties_dict(properties)
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class _CustomMarking(cls, base_class):
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_type = type
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_properties = prop_dict
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def __init__(self, **kwargs):
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base_class.__init__(self, **kwargs)
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_cls_init(cls, self, kwargs)
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_CustomMarking.__name__ = cls.__name__
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_register_marking(_CustomMarking, version=version)
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return _CustomMarking
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def _custom_observable_builder(cls, type, properties, version, base_class, id_contrib_props=None):
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if id_contrib_props is None:
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id_contrib_props = []
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prop_dict = _get_properties_dict(properties)
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class _CustomObservable(cls, base_class):
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_type = type
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_properties = prop_dict
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if version != '2.0':
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_id_contributing_properties = id_contrib_props
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def __init__(self, **kwargs):
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base_class.__init__(self, **kwargs)
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_cls_init(cls, self, kwargs)
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ext = getattr(self, 'with_extension', None)
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if ext and version != '2.0':
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if 'extensions' not in self._inner:
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self._inner['extensions'] = {}
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self._inner['extensions'][ext] = class_for_type(ext, version, "extensions")()
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_CustomObservable.__name__ = cls.__name__
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_register_observable(_CustomObservable, version=version)
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return _CustomObservable
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def _custom_extension_builder(cls, type, properties, version, base_class):
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properties = _get_properties_dict(properties)
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toplevel_properties = None
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# Auto-create an "extension_type" property from the class attribute, if
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# it exists. How to treat the other properties which were given depends on
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# the extension type.
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extension_type = getattr(cls, "extension_type", None)
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if extension_type:
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# I suppose I could also go with a plain string property, since the
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# value is fixed... but an enum property seems more true to the
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# property's semantics. Also, I can't import a vocab module for the
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# enum values without circular import errors. :(
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extension_type_prop = EnumProperty(
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[
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"new-sdo", "new-sco", "new-sro", "property-extension",
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"toplevel-property-extension",
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],
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required=False,
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fixed=extension_type,
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)
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nested_properties = {
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"extension_type": extension_type_prop,
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}
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if extension_type == "toplevel-property-extension":
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toplevel_properties = properties
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else:
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nested_properties.update(properties)
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else:
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nested_properties = properties
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class _CustomExtension(cls, base_class):
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_type = type
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_properties = nested_properties
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if extension_type == "toplevel-property-extension":
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_toplevel_properties = toplevel_properties
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def __init__(self, **kwargs):
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base_class.__init__(self, **kwargs)
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_cls_init(cls, self, kwargs)
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_CustomExtension.__name__ = cls.__name__
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_register_extension(_CustomExtension, version=version)
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return _CustomExtension
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