root / ncclient / rpc / reply.py @ 179b00d4
History | View | Annotate | Download (4.9 kB)
1 |
# Copyright 2009 Shikhar Bhushan
|
---|---|
2 |
#
|
3 |
# Licensed under the Apache License, Version 2.0 (the "License");
|
4 |
# you may not use this file except in compliance with the License.
|
5 |
# You may obtain a copy of the License at
|
6 |
#
|
7 |
# http://www.apache.org/licenses/LICENSE-2.0
|
8 |
#
|
9 |
# Unless required by applicable law or agreed to in writing, software
|
10 |
# distributed under the License is distributed on an "AS IS" BASIS,
|
11 |
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
12 |
# See the License for the specific language governing permissions and
|
13 |
# limitations under the License.
|
14 |
|
15 |
import ncclient |
16 |
|
17 |
from xml.etree import cElementTree as ET |
18 |
|
19 |
from ncclient.content import multiqualify as _ |
20 |
from ncclient.content import unqualify as __ |
21 |
|
22 |
import logging |
23 |
logger = logging.getLogger('ncclient.rpc.reply')
|
24 |
|
25 |
class RPCReply: |
26 |
|
27 |
'NOTES: memory considerations?? storing both raw xml + ET.Element'
|
28 |
|
29 |
def __init__(self, raw): |
30 |
self._raw = raw
|
31 |
self._parsed = False |
32 |
self._root = None |
33 |
self._errors = []
|
34 |
|
35 |
def __repr__(self): |
36 |
return self._raw |
37 |
|
38 |
def parse(self): |
39 |
if self._parsed: |
40 |
return
|
41 |
|
42 |
root = self._root = ET.fromstring(self._raw) # <rpc-reply> element |
43 |
|
44 |
if __(root.tag) != 'rpc-reply': |
45 |
raise ValueError('Root element is not RPC reply') |
46 |
|
47 |
ok = False
|
48 |
# per rfc 4741 an <ok/> tag is sent when there are no errors or warnings
|
49 |
oktags = _('ok')
|
50 |
for oktag in oktags: |
51 |
if root.find(oktag) is not None: |
52 |
logger.debug('parsed [%s]' % oktag)
|
53 |
break
|
54 |
else:
|
55 |
# create RPCError objects from <rpc-error> elements
|
56 |
errtags = _('rpc-error')
|
57 |
for errtag in errtags: |
58 |
for err in root.getiterator(errtag): # a particular <rpc-error> |
59 |
logger.debug('parsed [%s]' % errtag)
|
60 |
d = {} |
61 |
for err_detail in err.getchildren(): # <error-type> etc.. |
62 |
tag = __(err_detail.tag) |
63 |
d[tag] = (err_detail.text.strip() if tag != 'error-info' |
64 |
else ET.tostring(err_detail, 'utf-8')) |
65 |
self._errors.append(RPCError(d))
|
66 |
if self._errors: |
67 |
break
|
68 |
|
69 |
self._parsed = True |
70 |
|
71 |
@property
|
72 |
def content_xml(self): |
73 |
'<rpc-reply> subtree'
|
74 |
if not self._parsed: self.parse() |
75 |
return ''.join([ET.tostring(ele) for ele in self._root.getchildren()]) |
76 |
|
77 |
@property
|
78 |
def content_element(self): |
79 |
if not self._parsed: self.parse() |
80 |
return self._root.getchildren() |
81 |
|
82 |
@property
|
83 |
def root_xml(self): |
84 |
'<rpc-reply> as returned'
|
85 |
return self._raw |
86 |
|
87 |
@property
|
88 |
def root_element(self): |
89 |
if not self._parsed: self.parse() |
90 |
return self._root |
91 |
|
92 |
@property
|
93 |
def ok(self): |
94 |
if not self._parsed: self.parse() |
95 |
return not self._errors # empty list => false |
96 |
|
97 |
@property
|
98 |
def error(self): |
99 |
if not self._parsed: self.parse() |
100 |
if self._errors: |
101 |
return self._errors[0] |
102 |
else:
|
103 |
return None |
104 |
|
105 |
@property
|
106 |
def errors(self): |
107 |
'List of RPCError objects. Will be empty if no <rpc-error> elements in reply.'
|
108 |
if not self._parsed: self.parse() |
109 |
return self._errors |
110 |
|
111 |
|
112 |
class RPCError(ncclient.RPCError): # raise it if you like |
113 |
|
114 |
def __init__(self, err_dict): |
115 |
self._dict = err_dict
|
116 |
if self.message is not None: |
117 |
ncclient.RPCError.__init__(self, self.message) |
118 |
else:
|
119 |
ncclient.RPCError.__init__(self)
|
120 |
|
121 |
@property
|
122 |
def raw(self): |
123 |
return self._element.tostring() |
124 |
|
125 |
@property
|
126 |
def type(self): |
127 |
return self.get('error-type', None) |
128 |
|
129 |
@property
|
130 |
def severity(self): |
131 |
return self.get('error-severity', None) |
132 |
|
133 |
@property
|
134 |
def tag(self): |
135 |
return self.get('error-tag', None) |
136 |
|
137 |
@property
|
138 |
def path(self): |
139 |
return self.get('error-path', None) |
140 |
|
141 |
@property
|
142 |
def message(self): |
143 |
return self.get('error-message', None) |
144 |
|
145 |
@property
|
146 |
def info(self): |
147 |
return self.get('error-info', None) |
148 |
|
149 |
## dictionary interface
|
150 |
|
151 |
__getitem__ = lambda self, key: self._dict.__getitem__(key) |
152 |
|
153 |
__iter__ = lambda self: self._dict.__iter__() |
154 |
|
155 |
__contains__ = lambda self, key: self._dict.__contains__(key) |
156 |
|
157 |
keys = lambda self: self._dict.keys() |
158 |
|
159 |
get = lambda self, key, default: self._dict.get(key, default) |
160 |
|
161 |
iteritems = lambda self: self._dict.iteritems() |
162 |
|
163 |
iterkeys = lambda self: self._dict.iterkeys() |
164 |
|
165 |
itervalues = lambda self: self._dict.itervalues() |
166 |
|
167 |
values = lambda self: self._dict.values() |
168 |
|
169 |
items = lambda self: self._dict.items() |
170 |
|
171 |
__repr__ = lambda self: repr(self._dict) |