/
registry.py
46 lines (31 loc) · 1.12 KB
/
registry.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
from gutter.client.operators import Base
from gutter.client.arguments.base import Container
class Registry(object):
def __init__(self, cls):
self.__items = {}
self.__cls = cls
items = property(lambda self: self.__items)
def __getitem__(self, key):
try:
return self.__items[key]
except KeyError:
raise KeyError("Key '%s' not registered" % key)
def register(self, key, obj):
try:
if not issubclass(obj, self.__cls):
raise ValueError("%s is not a %s" % (obj, self.__cls))
except TypeError:
raise ValueError("%s is not a %s" % (obj, self.__cls))
self.__items[key] = obj
def extract_key_from_name(func):
def helpful_register(key_or_operator=None, operator=None):
if not operator:
operator = key_or_operator
key = operator.name
else:
key = key_or_operator
return func(key, operator)
return helpful_register
arguments = Registry(Container)
operators = Registry(Base)
operators.register = extract_key_from_name(operators.register)