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
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
# Authors:
# Jason Gerard DeRose <jderose@redhat.com>
#
# Copyright (C) 2008 Red Hat
# see file 'COPYING' for use and warranty information
#
# 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; version 2 only
#
# 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, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""
Base classes for the public plugable.API instance, which the XML-RPC, CLI,
and UI all use.
"""
import re
import plugable
class generic_proxy(plugable.Proxy):
__slots__ = (
'get_doc',
)
class cmd_proxy(plugable.Proxy):
__slots__ = (
'__call__',
'get_doc',
)
class cmd(plugable.Plugin):
proxy = cmd_proxy
def get_doc(self, _):
raise NotImplementedError('%s.get_doc()' % self.name)
def __call__(self, *args, **kw):
print repr(self)
class obj(plugable.Plugin):
proxy = generic_proxy
class attr(plugable.Plugin):
__obj = None
proxy = generic_proxy
def __init__(self):
m = re.match('^([a-z]+)_([a-z]+)$', self.__class__.__name__)
assert m
self.__obj_name = m.group(1)
self.__attr_name = m.group(2)
def __get_obj_name(self):
return self.__obj_name
obj_name = property(__get_obj_name)
def __get_attr_name(self):
return self.__attr_name
attr_name = property(__get_attr_name)
def __get_obj(self):
"""
Returns the obj instance this attribute is associated with, or None
if no association has been set.
"""
return self.__obj
obj = property(__get_obj)
def finalize(self, api):
super(attr, self).finalize(api)
self.__obj = api.obj[self.obj_name]
class mthd(attr, cmd):
proxy = generic_proxy
class prop(attr):
proxy = generic_proxy
def get_doc(self, _):
return _('prop doc')
class PublicAPI(plugable.API):
__max_cmd_len = None
def __init__(self):
super(PublicAPI, self).__init__(cmd, obj, prop)
def __get_max_cmd_len(self):
if self.__max_cmd_len is None:
if not hasattr(self, 'cmd'):
return None
max_cmd_len = max(len(str(cmd)) for cmd in self.cmd)
object.__setattr__(self, '_PublicAPI__max_cmd_len', max_cmd_len)
return self.__max_cmd_len
max_cmd_len = property(__get_max_cmd_len)
|
