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
|
"""
Copyright (c) 2007 Jan-Klaas Kollhof
This file is part of jsonrpc.
jsonrpc is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This software 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this software; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""
import urllib2
from frontend.afe.simplejson import decoder, encoder
json_encoder = encoder.JSONEncoder()
json_decoder = decoder.JSONDecoder()
class JSONRPCException(Exception):
pass
class ServiceProxy(object):
def __init__(self, serviceURL, serviceName=None, headers=None):
self.__serviceURL = serviceURL
self.__serviceName = serviceName
self.__headers = headers or {}
def __getattr__(self, name):
if self.__serviceName != None:
name = "%s.%s" % (self.__serviceName, name)
return ServiceProxy(self.__serviceURL, name, self.__headers)
def __call__(self, *args, **kwargs):
postdata = json_encoder.encode({"method": self.__serviceName,
'params': args + (kwargs,),
'id':'jsonrpc'})
request = urllib2.Request(self.__serviceURL, data=postdata,
headers=self.__headers)
respdata = urllib2.urlopen(request).read()
try:
resp = json_decoder.decode(respdata)
except ValueError:
raise JSONRPCException('Error decoding JSON reponse:\n' + respdata)
if resp['error'] != None:
error_message = (resp['error']['name'] + ': ' +
resp['error']['message'] + '\n' +
resp['error']['traceback'])
raise JSONRPCException(error_message)
else:
return resp['result']
|
