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# 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 nova.api.openstack import extensions
from nova import compute
from nova.objects import base as obj_base
ALIAS = "os-migrations"
def authorize(context, action_name):
action = 'v3:%s:%s' % (ALIAS, action_name)
extensions.extension_authorizer('compute', action)(context)
def output(migrations_obj):
"""Returns the desired output of the API from an object.
From a MigrationsList's object this method returns a list of
primitive objects with the only necessary fields.
"""
objects = obj_base.obj_to_primitive(migrations_obj)
for obj in objects:
del obj['deleted']
del obj['deleted_at']
return objects
class MigrationsController(object):
"""Controller for accessing migrations in OpenStack API."""
def __init__(self):
self.compute_api = compute.API()
@extensions.expected_errors(())
def index(self, req):
"""Return all migrations in progress."""
context = req.environ['nova.context']
authorize(context, "index")
migrations = self.compute_api.get_migrations(context, req.GET)
return {'migrations': output(migrations)}
class Migrations(extensions.V3APIExtensionBase):
"""Provide data on migrations."""
name = "Migrations"
alias = ALIAS
version = 1
def get_resources(self):
resources = []
resource = extensions.ResourceExtension('os-migrations',
MigrationsController())
resources.append(resource)
return resources
def get_controller_extensions(self):
return []
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