|
1
|
|
|
# coding: utf-8 |
|
2
|
|
|
|
|
3
|
1 |
|
import abc |
|
4
|
|
|
|
|
5
|
1 |
|
import six |
|
6
|
|
|
|
|
7
|
|
|
|
|
8
|
1 |
|
class BaseStructure(object): |
|
9
|
1 |
|
__slots__ = [] |
|
10
|
|
|
|
|
11
|
1 |
|
def __eq__(self, other): |
|
12
|
1 |
|
if not isinstance(other, self.__class__): |
|
13
|
1 |
|
return NotImplemented |
|
14
|
|
|
|
|
15
|
1 |
|
if self.__class__ != other.__class__: |
|
16
|
|
|
return False |
|
17
|
|
|
|
|
18
|
1 |
|
return all([ |
|
19
|
|
|
getattr(self, x) == getattr(other, x) |
|
20
|
|
|
for x in self.__slots__ |
|
21
|
|
|
]) |
|
22
|
|
|
|
|
23
|
1 |
|
def __ne__(self, other): |
|
24
|
1 |
|
return not (self == other) |
|
25
|
|
|
|
|
26
|
1 |
|
def __hash__(self): |
|
27
|
1 |
|
return hash(tuple( |
|
28
|
|
|
getattr(self, x) for x in self.__slots__ |
|
29
|
|
|
)) |
|
30
|
|
|
|
|
31
|
1 |
|
def to_primitive(self, context=None): |
|
32
|
1 |
|
fields = ((key, getattr(self, key)) for key in self.__slots__) |
|
33
|
1 |
|
return { |
|
34
|
|
|
key: self._to_primitive(value, context) |
|
35
|
|
|
for key, value in fields |
|
36
|
|
|
} |
|
37
|
|
|
|
|
38
|
1 |
|
@staticmethod |
|
39
|
|
|
def _to_primitive(instance, context): |
|
40
|
1 |
|
if hasattr(instance, 'to_primitive'): |
|
41
|
1 |
|
return instance.to_primitive(context) |
|
42
|
1 |
|
elif hasattr(instance, 'isoformat'): |
|
43
|
1 |
|
return instance.isoformat() |
|
44
|
|
|
else: |
|
45
|
1 |
|
return instance |
|
46
|
|
|
|
|
47
|
|
|
|
|
48
|
1 |
|
class Event(six.with_metaclass(abc.ABCMeta, BaseStructure)): |
|
49
|
|
|
""" |
|
50
|
|
|
Base event structure. |
|
51
|
|
|
|
|
52
|
|
|
""" |
|
53
|
|
|
|
|
54
|
1 |
|
def __init__(self, **kwargs): |
|
55
|
|
|
for key in self.__slots__: |
|
56
|
|
|
setattr(self, key, kwargs[key]) |
|
57
|
|
|
|
|
58
|
|
|
super(Event, self).__init__() |
|
59
|
|
|
|
|
60
|
1 |
|
@property |
|
61
|
|
|
def name(self): |
|
62
|
|
|
return self.__class__.__name__ |
|
63
|
|
|
|
|
64
|
1 |
|
@abc.abstractproperty |
|
65
|
|
|
def verbose_name(self): |
|
66
|
|
|
""" |
|
67
|
|
|
Human-readable name of event. |
|
68
|
|
|
|
|
69
|
|
|
""" |
|
70
|
|
|
|
|
71
|
1 |
|
def to_primitive(self, context=None): |
|
72
|
|
|
primitive = super(Event, self).to_primitive(context) |
|
73
|
|
|
primitive.update({ |
|
74
|
|
|
'name': self.name, |
|
75
|
|
|
'verbose_name': six.text_type(self.verbose_name), |
|
76
|
|
|
}) |
|
77
|
|
|
return primitive |
|
78
|
|
|
|
|
79
|
|
|
def __repr__(self): |
|
80
|
|
|
return "<Event {0} {1}>".format(self.name, self.to_primitive()) |
|
81
|
|
|
|
|
82
|
|
|
|
|
83
|
1 |
|
class ParsableEvent(Event): |
|
84
|
|
|
""" |
|
85
|
|
|
Base event which can be parsed from string. |
|
86
|
|
|
|
|
87
|
|
|
""" |
|
88
|
1 |
|
transformers = tuple() |
|
89
|
|
|
|
|
90
|
1 |
|
@classmethod |
|
91
|
|
|
def transform(cls, data): |
|
92
|
|
|
for transformer in cls.transformers: |
|
93
|
|
|
transformer(data) |
|
94
|
|
|
|
|
95
|
|
|
return data |
|
96
|
|
|
|
|
97
|
1 |
|
@abc.abstractproperty |
|
98
|
|
|
def matcher(self): |
|
99
|
|
|
""" |
|
100
|
|
|
A callable for matching strings. |
|
101
|
|
|
|
|
102
|
|
|
""" |
|
103
|
|
|
|
|
104
|
1 |
|
@classmethod |
|
105
|
|
|
def from_s(cls, s): |
|
106
|
|
|
match = cls.matcher(s) |
|
107
|
|
|
|
|
108
|
|
|
if match: |
|
109
|
|
|
data = cls.transform(match.groupdict()) |
|
110
|
|
|
return cls(**data) |
|
111
|
|
|
|