ncclient:NETCONF Python client

# Copyright 2009 Shikhar Bhushan

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

#    http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

class Capabilities:

    def __init__(self, capabilities=None):

        self._dict = {}

        if isinstance(capabilities, dict):

            self._dict = capabilities

        elif isinstance(capabilities, list):

            for uri in capabilities:

                self._dict[uri] = Capabilities.guess_shorthand(uri)

    def __contains__(self, key):

        return ( key in self._dict ) or ( key in self._dict.values() )

    def __repr__(self):

        return self.to_xml()

    def add(self, uri, shorthand=None):

        if shorthand is None:

            shorthand = Capabilities.guess_shorthand(uri)

        self._dict[uri] = shorthand

    set = add

    def remove(self, key):

        if key in self._dict:

            del self._dict[key]

        else:

            for uri in self._dict:

                if self._dict[uri] == key:

                    del self._dict[uri]

                    break

    def to_xml(self):

        elems = ['<capability>%s</capability>' % uri for uri in self._dict]

        return ('<capabilities>%s</capabilities>' % ''.join(elems))

    @staticmethod

    def guess_shorthand(uri):

        if uri.startswith('urn:ietf:params:netconf:capability:'):

            return (':' + uri.split(':')[5])

CAPABILITIES = Capabilities([

    'urn:ietf:params:netconf:base:1.0',

    'urn:ietf:params:netconf:capability:writable-running:1.0',

    'urn:ietf:params:netconf:capability:candidate:1.0',

    'urn:ietf:params:netconf:capability:confirmed-commit:1.0',

    'urn:ietf:params:netconf:capability:rollback-on-error:1.0',

    'urn:ietf:params:netconf:capability:startup:1.0',

    'urn:ietf:params:netconf:capability:url:1.0',

    'urn:ietf:params:netconf:capability:validate:1.0',

    'urn:ietf:params:netconf:capability:xpath:1.0',

    'urn:ietf:params:netconf:capability:notification:1.0',

    'urn:ietf:params:netconf:capability:interleave:1.0'

    ])

if __name__ == "__main__":

    assert(':validate' in CAPABILITIES) # test __contains__

    print CAPABILITIES # test __repr__