root / ncclient / rpc / reply.py @ cc8de468
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# Copyright 2009 Shikhar Bhushan
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from xml.etree import cElementTree as ET |
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from ncclient.content import multiqualify as _ |
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from ncclient.content import unqualify as __ |
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import logging |
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logger = logging.getLogger('ncclient.operations.reply')
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class RPCReply: |
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def __init__(self, raw): |
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self._raw = raw
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self._parsed = False |
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self._errors = []
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def __repr__(self): |
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return self._raw |
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def parse(self): |
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if self._parsed: return |
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root = ET.fromstring(self._raw) # <rpc-reply> element |
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if __(root.tag) != 'rpc-reply': |
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raise ValueError('Root element is not RPC reply') |
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# per rfc 4741 an <ok/> tag is sent when there are no errors or warnings
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oktags = _('ok')
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for oktag in oktags: |
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if root.find(oktag) is not None: |
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logger.debug('parsed [%s]' % oktag)
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self._parsed = True |
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return
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# create RPCError objects from <rpc-error> elements
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errtags = _('rpc-error')
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for errtag in errtags: |
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for err in root.getiterator(errtag): # a particular <rpc-error> |
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logger.debug('parsed [%s]' % errtag)
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d = {} |
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for err_detail in err.getchildren(): # <error-type> etc.. |
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tag = __(err_detail.tag) |
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d[tag] = (err_detail.text.strip() if tag != 'error-info' |
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else ET.tostring(err_detail, 'utf-8')) |
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self._errors.append(RPCError(d))
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if self._errors: |
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break
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self._parsed = True |
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@property
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def raw(self): |
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return self._raw |
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@property
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def ok(self): |
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if not self._parsed: self.parse() |
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return not self._errors # empty list => false |
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@property
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def errors(self): |
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'List of RPCError objects. Will be empty if no <rpc-error> elements in reply.'
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if not self._parsed: self.parse() |
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return self._errors |
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class RPCError(Exception): # raise it if you like |
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def __init__(self, err_dict): |
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self._dict = err_dict
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if self.message is not None: |
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Exception.__init__(self, self.message) |
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else:
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Exception.__init__(self) |
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@property
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def raw(self): |
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return self._element.tostring() |
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@property
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def type(self): |
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return self.get('error-type', None) |
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@property
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def severity(self): |
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return self.get('error-severity', None) |
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@property
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def tag(self): |
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return self.get('error-tag', None) |
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@property
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def path(self): |
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return self.get('error-path', None) |
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@property
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def message(self): |
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return self.get('error-message', None) |
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@property
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def info(self): |
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return self.get('error-info', None) |
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## dictionary interface
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__getitem__ = lambda self, key: self._dict.__getitem__(key) |
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__iter__ = lambda self: self._dict.__iter__() |
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__contains__ = lambda self, key: self._dict.__contains__(key) |
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keys = lambda self: self._dict.keys() |
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get = lambda self, key, default: self._dict.get(key, default) |
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iteritems = lambda self: self._dict.iteritems() |
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iterkeys = lambda self: self._dict.iterkeys() |
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itervalues = lambda self: self._dict.itervalues() |
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values = lambda self: self._dict.values() |
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items = lambda self: self._dict.items() |
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__repr__ = lambda self: repr(self._dict) |