root / ncclient / operations / util.py @ 216bb34c
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1 | c2a5b930 | Shikhar Bhushan | # Copyright 2009 Shikhar Bhushan
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2 | c2a5b930 | Shikhar Bhushan | #
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3 | c2a5b930 | Shikhar Bhushan | # Licensed under the Apache License, Version 2.0 (the "License");
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4 | c2a5b930 | Shikhar Bhushan | # you may not use this file except in compliance with the License.
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5 | c2a5b930 | Shikhar Bhushan | # You may obtain a copy of the License at
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6 | c2a5b930 | Shikhar Bhushan | #
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7 | c2a5b930 | Shikhar Bhushan | # http://www.apache.org/licenses/LICENSE-2.0
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8 | c2a5b930 | Shikhar Bhushan | #
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9 | c2a5b930 | Shikhar Bhushan | # Unless required by applicable law or agreed to in writing, software
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10 | c2a5b930 | Shikhar Bhushan | # distributed under the License is distributed on an "AS IS" BASIS,
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11 | c2a5b930 | Shikhar Bhushan | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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12 | c2a5b930 | Shikhar Bhushan | # See the License for the specific language governing permissions and
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13 | c2a5b930 | Shikhar Bhushan | # limitations under the License.
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14 | d6688264 | Shikhar Bhushan | |
15 | cc9af1c3 | Shikhar Bhushan | 'Boilerplate ugliness'
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16 | d6688264 | Shikhar Bhushan | |
17 | d771dffc | Shikhar Bhushan | from ncclient import content |
18 | d6688264 | Shikhar Bhushan | |
19 | d771dffc | Shikhar Bhushan | from errors import OperationError, MissingCapabilityError |
20 | d6688264 | Shikhar Bhushan | |
21 | 179b00d4 | Shikhar Bhushan | def one_of(*args): |
22 | 179b00d4 | Shikhar Bhushan | 'Verifies that only one of the arguments is not None'
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23 | d6688264 | Shikhar Bhushan | for i, arg in enumerate(args): |
24 | d6688264 | Shikhar Bhushan | if arg is not None: |
25 | d6688264 | Shikhar Bhushan | for argh in args[i+1:]: |
26 | d6688264 | Shikhar Bhushan | if argh is not None: |
27 | d6688264 | Shikhar Bhushan | raise OperationError('Too many parameters') |
28 | d6688264 | Shikhar Bhushan | else:
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29 | d6688264 | Shikhar Bhushan | return
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30 | d6688264 | Shikhar Bhushan | raise OperationError('Insufficient parameters') |
31 | d6688264 | Shikhar Bhushan | |
32 | d771dffc | Shikhar Bhushan | def store_or_url(wha, loc, capcheck=None): |
33 | d771dffc | Shikhar Bhushan | node = { 'tag': wha, 'subtree': {} } |
34 | d771dffc | Shikhar Bhushan | if '://' in loc: # e.g. http://, file://, ftp:// |
35 | ebf2bbc6 | Shikhar Bhushan | if capcheck is not None: |
36 | d771dffc | Shikhar Bhushan | capcheck(':url') # url schema check at some point! |
37 | d771dffc | Shikhar Bhushan | node['subtree']['tag'] = 'url' |
38 | d771dffc | Shikhar Bhushan | node['subtree']['text'] = loc |
39 | d771dffc | Shikhar Bhushan | else:
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40 | d771dffc | Shikhar Bhushan | node['subtree']['tag'] = loc |
41 | d6688264 | Shikhar Bhushan | return node
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42 | a6c00291 | Shikhar Bhushan | |
43 | ebf2bbc6 | Shikhar Bhushan | def build_filter(spec, capcheck=None): |
44 | ebf2bbc6 | Shikhar Bhushan | type = None
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45 | ebf2bbc6 | Shikhar Bhushan | if isinstance(spec, tuple): |
46 | ebf2bbc6 | Shikhar Bhushan | type, criteria = tuple |
47 | ebf2bbc6 | Shikhar Bhushan | rep = { |
48 | ebf2bbc6 | Shikhar Bhushan | 'tag': 'filter', |
49 | 4f650d54 | Shikhar Bhushan | 'attrib': {'type': type}, |
50 | ebf2bbc6 | Shikhar Bhushan | 'subtree': criteria
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51 | d771dffc | Shikhar Bhushan | } |
52 | ebf2bbc6 | Shikhar Bhushan | else:
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53 | a7cb58ce | Shikhar Bhushan | rep = content.validated_element(spec, ['filter', content.qualify('filter')], |
54 | a7cb58ce | Shikhar Bhushan | attrs=[('type', content.qualify('type'))]) |
55 | ebf2bbc6 | Shikhar Bhushan | try:
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56 | ebf2bbc6 | Shikhar Bhushan | type = rep['type']
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57 | ebf2bbc6 | Shikhar Bhushan | except KeyError: |
58 | d771dffc | Shikhar Bhushan | type = ele[content.qualify('type')]
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59 | d771dffc | Shikhar Bhushan | if type == 'xpath' and capcheck is not None: |
60 | d771dffc | Shikhar Bhushan | capcheck(':xpath')
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61 | ebf2bbc6 | Shikhar Bhushan | return rep |