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OpenStack Study: commands.py

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# Copyright 2014 VMware, Inc.

#

# All Rights Reserved

#

# 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.

#

from neutronclient.neutron.v2_0 import find_resourceid_by_name_or_id

from neutronclient.neutron.v2_0 import NeutronCommand

LSN_PATH = '/lsns'

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def print_report(write_func, report):

    write_func(_("\nService type = %s\n") % report['report']['type'])

    services = ','.join(report['report']['services'])

    ports = ','.join(report['report']['ports'])

    write_func(_("Service uuids = %s\n") % services)

    write_func(_("Port uuids = %s\n\n") % ports)

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class NetworkReport(NeutronCommand):

"""Retrieve network migration report."""

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    def get_parser(self, prog_name):

        parser = super(NetworkReport, self).get_parser(prog_name)

        parser.add_argument('network', metavar='network',

                            help=_('ID or name of network to run report on'))

        return parser

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    def run(self, parsed_args):

        net = parsed_args.network

        net_id = find_resourceid_by_name_or_id(self.app.client, 'network', net)

        res = self.app.client.get("%s/%s" % (LSN_PATH, net_id))

        if res:

            self.app.stdout.write(_('Migration report is:\n'))

            print_report(self.app.stdout.write, res['lsn'])

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class NetworkMigrate(NeutronCommand):

"""Perform network migration."""

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    def get_parser(self, prog_name):

        parser = super(NetworkMigrate, self).get_parser(prog_name)

        parser.add_argument('network', metavar='network',

                            help=_('ID or name of network to migrate'))

        return parser

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    def run(self, parsed_args):

        net = parsed_args.network

        net_id = find_resourceid_by_name_or_id(self.app.client, 'network', net)

        body = {'network': net_id}

        res = self.app.client.post(LSN_PATH, body={'lsn': body})

        if res:

            self.app.stdout.write(_('Migration has been successful:\n'))

            print_report(self.app.stdout.write, res['lsn'])