root / ncclient / operations / lock.py @ 9667bcb2
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1 | 179b00d4 | Shikhar Bhushan | # Copyright 2h009 Shikhar Bhushan
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2 | 3043ae4a | Shikhar Bhushan | #
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3 | 3043ae4a | Shikhar Bhushan | # Licensed under the Apache License, Version 2.0 (the "License");
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4 | 3043ae4a | Shikhar Bhushan | # you may not use this file except in compliance with the License.
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5 | 3043ae4a | Shikhar Bhushan | # You may obtain a copy of the License at
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6 | 3043ae4a | Shikhar Bhushan | #
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7 | 3043ae4a | Shikhar Bhushan | # http://www.apache.org/licenses/LICENSE-2.0
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8 | 3043ae4a | Shikhar Bhushan | #
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9 | 3043ae4a | Shikhar Bhushan | # Unless required by applicable law or agreed to in writing, software
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10 | 3043ae4a | Shikhar Bhushan | # distributed under the License is distributed on an "AS IS" BASIS,
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11 | 3043ae4a | Shikhar Bhushan | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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12 | 3043ae4a | Shikhar Bhushan | # See the License for the specific language governing permissions and
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13 | 3043ae4a | Shikhar Bhushan | # limitations under the License.
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14 | 3043ae4a | Shikhar Bhushan | |
15 | 3043ae4a | Shikhar Bhushan | 'Locking-related NETCONF operations'
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16 | 3043ae4a | Shikhar Bhushan | |
17 | 9667bcb2 | Shikhar Bhushan | from ncclient.xml_ import * |
18 | ce5fb329 | Shikhar Bhushan | |
19 | dd225c7a | Shikhar Bhushan | from rpc import RPC |
20 | 6a2dfeb4 | Shikhar Bhushan | |
21 | dd225c7a | Shikhar Bhushan | # TODO:
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22 | 9667bcb2 | Shikhar Bhushan | # should have some way to parse session-id from a lock-denied error, and raise
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23 | 9667bcb2 | Shikhar Bhushan | # a tailored exception
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24 | 94803aaf | Shikhar Bhushan | |
25 | a6c00291 | Shikhar Bhushan | class Lock(RPC): |
26 | a7cb58ce | Shikhar Bhushan | |
27 | 216bb34c | Shikhar Bhushan | "*<lock>* RPC"
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28 | 9667bcb2 | Shikhar Bhushan | |
29 | 216bb34c | Shikhar Bhushan | def request(self, target): |
30 | 216bb34c | Shikhar Bhushan | """
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31 | 216bb34c | Shikhar Bhushan | :arg target: see :ref:`source_target`
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32 | 216bb34c | Shikhar Bhushan | :type target: string
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33 | 216bb34c | Shikhar Bhushan |
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34 | 216bb34c | Shikhar Bhushan | :rtype: :ref:`return`
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35 | 216bb34c | Shikhar Bhushan | """
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36 | 9667bcb2 | Shikhar Bhushan | node = new_ele("lock")
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37 | 9667bcb2 | Shikhar Bhushan | sub_ele(sub_ele(node, "target"), "running") |
38 | 9667bcb2 | Shikhar Bhushan | return self._request(node) |
39 | 6c1f8a66 | Shikhar Bhushan | |
40 | 6625258b | Shikhar Bhushan | |
41 | a6c00291 | Shikhar Bhushan | class Unlock(RPC): |
42 | a7cb58ce | Shikhar Bhushan | |
43 | 216bb34c | Shikhar Bhushan | "*<unlock>* RPC"
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44 | 9667bcb2 | Shikhar Bhushan | |
45 | 216bb34c | Shikhar Bhushan | def request(self, target): |
46 | 216bb34c | Shikhar Bhushan | """
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47 | 216bb34c | Shikhar Bhushan | :arg target: see :ref:`source_target`
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48 | 216bb34c | Shikhar Bhushan | :type target: string
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49 | 216bb34c | Shikhar Bhushan |
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50 | 216bb34c | Shikhar Bhushan | :rtype: :ref:`return`
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51 | 216bb34c | Shikhar Bhushan | """
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52 | 9667bcb2 | Shikhar Bhushan | node = new_ele("lock")
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53 | 9667bcb2 | Shikhar Bhushan | sub_ele(sub_ele(node, "target"), "running") |
54 | 9667bcb2 | Shikhar Bhushan | return self._request(node) |
55 | d6688264 | Shikhar Bhushan | |
56 | d6688264 | Shikhar Bhushan | |
57 | d6688264 | Shikhar Bhushan | class LockContext: |
58 | a7cb58ce | Shikhar Bhushan | |
59 | 216bb34c | Shikhar Bhushan | """
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60 | 216bb34c | Shikhar Bhushan | A context manager for the :class:`Lock` / :class:`Unlock` pair of RPC's.
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61 | 0304f041 | Shikhar Bhushan |
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62 | 0304f041 | Shikhar Bhushan | RPC errors are always raised as exceptions.
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63 | 0304f041 | Shikhar Bhushan |
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64 | 216bb34c | Shikhar Bhushan | Initialise with session instance (:class:`Session
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65 | 216bb34c | Shikhar Bhushan | <ncclient.transport.Session>`) and lock target (:ref:`source_target`)
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66 | 216bb34c | Shikhar Bhushan | """
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67 | 216bb34c | Shikhar Bhushan | |
68 | 179b00d4 | Shikhar Bhushan | def __init__(self, session, target): |
69 | d6688264 | Shikhar Bhushan | self.session = session
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70 | d6688264 | Shikhar Bhushan | self.target = target
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71 | a7cb58ce | Shikhar Bhushan | |
72 | d6688264 | Shikhar Bhushan | def __enter__(self): |
73 | 9667bcb2 | Shikhar Bhushan | Lock(self.session).request(self.target) |
74 | 9667bcb2 | Shikhar Bhushan | return self |
75 | a7cb58ce | Shikhar Bhushan | |
76 | 179b00d4 | Shikhar Bhushan | def __exit__(self, *args): |
77 | 9667bcb2 | Shikhar Bhushan | Unlock(self.session).request(self.target) |
78 | d6688264 | Shikhar Bhushan | return False |