9b03e71707
H302 violation is reported by flake8 when importing separated objects from
modules instead of importing the whole module.
e.g. from package.module import function
function()
is changed to
from package import module
module.function()
Change-Id: Ic6975f39c755ded54149a9c01fcdcfaf78c596fc
Partial-Bug: #1291032
140 lines
4.6 KiB
Python
140 lines
4.6 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2012 OpenStack Foundation.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from neutron.api import extensions
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from neutron.api.v2 import base
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from neutron.common import exceptions
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from neutron.db import servicetype_db
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from neutron.extensions import servicetype
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from neutron import manager
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from neutron.openstack.common import uuidutils
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from neutron.plugins.common import constants
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from neutron.services import service_base
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DUMMY_PLUGIN_NAME = "dummy_plugin"
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RESOURCE_NAME = "dummy"
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COLLECTION_NAME = "%ss" % RESOURCE_NAME
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# Attribute Map for dummy resource
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RESOURCE_ATTRIBUTE_MAP = {
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COLLECTION_NAME: {
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'id': {'allow_post': False, 'allow_put': False,
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'validate': {'type:uuid': None},
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'is_visible': True},
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'name': {'allow_post': True, 'allow_put': True,
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'validate': {'type:string': None},
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'is_visible': True, 'default': ''},
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'tenant_id': {'allow_post': True, 'allow_put': False,
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'required_by_policy': True,
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'is_visible': True},
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'service_type': {'allow_post': True,
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'allow_put': False,
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'validate': {'type:servicetype_ref': None},
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'is_visible': True,
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'default': None}
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}
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}
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class Dummy(object):
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@classmethod
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def get_name(cls):
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return "dummy"
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@classmethod
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def get_alias(cls):
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return "dummy"
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@classmethod
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def get_description(cls):
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return "Dummy stuff"
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@classmethod
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def get_namespace(cls):
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return "http://docs.openstack.org/ext/neutron/dummy/api/v1.0"
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@classmethod
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def get_updated(cls):
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return "2012-11-20T10:00:00-00:00"
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@classmethod
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def get_resources(cls):
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"""Returns Extended Resource for dummy management."""
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q_mgr = manager.NeutronManager.get_instance()
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dummy_inst = q_mgr.get_service_plugins()['DUMMY']
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controller = base.create_resource(
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COLLECTION_NAME, RESOURCE_NAME, dummy_inst,
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RESOURCE_ATTRIBUTE_MAP[COLLECTION_NAME])
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return [extensions.ResourceExtension(COLLECTION_NAME,
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controller)]
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class DummyServicePlugin(service_base.ServicePluginBase):
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"""This is a simple plugin for managing instantes of a fictional 'dummy'
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service. This plugin is provided as a proof-of-concept of how
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advanced service might leverage the service type extension.
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Ideally, instances of real advanced services, such as load balancing
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or VPN will adopt a similar solution.
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"""
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supported_extension_aliases = ['dummy', servicetype.EXT_ALIAS]
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agent_notifiers = {'dummy': 'dummy_agent_notifier'}
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def __init__(self):
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self.svctype_mgr = servicetype_db.ServiceTypeManager.get_instance()
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self.dummys = {}
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def get_plugin_type(self):
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return constants.DUMMY
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def get_plugin_name(self):
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return DUMMY_PLUGIN_NAME
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def get_plugin_description(self):
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return "Neutron Dummy Service Plugin"
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def get_dummys(self, context, filters, fields):
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return self.dummys.values()
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def get_dummy(self, context, id, fields):
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try:
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return self.dummys[id]
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except KeyError:
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raise exceptions.NotFound()
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def create_dummy(self, context, dummy):
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d = dummy['dummy']
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d['id'] = uuidutils.generate_uuid()
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self.dummys[d['id']] = d
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self.svctype_mgr.increase_service_type_refcount(context,
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d['service_type'])
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return d
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def update_dummy(self, context, id, dummy):
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pass
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def delete_dummy(self, context, id):
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try:
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svc_type_id = self.dummys[id]['service_type']
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del self.dummys[id]
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self.svctype_mgr.decrease_service_type_refcount(context,
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svc_type_id)
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except KeyError:
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raise exceptions.NotFound()
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