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
|
# -*- coding: utf-8 -*-
# api.py
# Copyright (C) 2016 LEAP Encryption Acess Project
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
Registry for the public API for the Bitmask Backend.
"""
from collections import OrderedDict
registry = OrderedDict()
class APICommand(type):
"""
A metaclass to keep a global registry of all the methods that compose the
public API for the Bitmask Backend.
"""
def __init__(cls, name, bases, attrs):
for key, val in attrs.iteritems():
properties = getattr(val, 'register', None)
label = getattr(cls, 'label', None)
if label:
name = label
if properties is not None:
registry['%s.%s' % (name, key)] = properties
def register_method(*args):
"""
This method gathers info about all the methods that are supposed to
compose the public API to communicate with the backend.
It sets up a register property for any method that uses it.
A type annotation is supposed to be in this property.
The APICommand metaclass collects these properties of the methods and
stores them in the global api_registry object, where they can be
introspected at runtime.
"""
def decorator(f):
f.register = tuple(args)
return f
return decorator
|
