d1c0e73bc6
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: I570eeee2a7633c1590b54ac98b411a71fc9d4f4e
Partial-Bug: #1291032
153 lines
4.8 KiB
Python
153 lines
4.8 KiB
Python
# Copyright (c) 2013 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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import abc
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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.api.v2 import resource
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from neutron.common import constants
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from neutron.common import exceptions
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from neutron.extensions import agent
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from neutron import manager
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from neutron import policy
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from neutron import wsgi
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DHCP_NET = 'dhcp-network'
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DHCP_NETS = DHCP_NET + 's'
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DHCP_AGENT = 'dhcp-agent'
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DHCP_AGENTS = DHCP_AGENT + 's'
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class NetworkSchedulerController(wsgi.Controller):
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def index(self, request, **kwargs):
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plugin = manager.NeutronManager.get_plugin()
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policy.enforce(request.context,
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"get_%s" % DHCP_NETS,
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{})
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return plugin.list_networks_on_dhcp_agent(
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request.context, kwargs['agent_id'])
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def create(self, request, body, **kwargs):
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plugin = manager.NeutronManager.get_plugin()
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policy.enforce(request.context,
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"create_%s" % DHCP_NET,
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{})
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return plugin.add_network_to_dhcp_agent(
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request.context, kwargs['agent_id'], body['network_id'])
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def delete(self, request, id, **kwargs):
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plugin = manager.NeutronManager.get_plugin()
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policy.enforce(request.context,
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"delete_%s" % DHCP_NET,
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{})
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return plugin.remove_network_from_dhcp_agent(
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request.context, kwargs['agent_id'], id)
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class DhcpAgentsHostingNetworkController(wsgi.Controller):
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def index(self, request, **kwargs):
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plugin = manager.NeutronManager.get_plugin()
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policy.enforce(request.context,
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"get_%s" % DHCP_AGENTS,
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{})
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return plugin.list_dhcp_agents_hosting_network(
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request.context, kwargs['network_id'])
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class Dhcpagentscheduler(extensions.ExtensionDescriptor):
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"""Extension class supporting dhcp agent scheduler.
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"""
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@classmethod
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def get_name(cls):
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return "DHCP Agent Scheduler"
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@classmethod
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def get_alias(cls):
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return constants.DHCP_AGENT_SCHEDULER_EXT_ALIAS
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@classmethod
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def get_description(cls):
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return "Schedule networks among dhcp agents"
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@classmethod
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def get_namespace(cls):
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return "http://docs.openstack.org/ext/dhcp_agent_scheduler/api/v1.0"
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@classmethod
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def get_updated(cls):
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return "2013-02-07T10:00:00-00:00"
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@classmethod
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def get_resources(cls):
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"""Returns Ext Resources."""
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exts = []
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parent = dict(member_name="agent",
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collection_name="agents")
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controller = resource.Resource(NetworkSchedulerController(),
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base.FAULT_MAP)
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exts.append(extensions.ResourceExtension(
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DHCP_NETS, controller, parent))
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parent = dict(member_name="network",
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collection_name="networks")
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controller = resource.Resource(DhcpAgentsHostingNetworkController(),
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base.FAULT_MAP)
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exts.append(extensions.ResourceExtension(
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DHCP_AGENTS, controller, parent))
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return exts
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def get_extended_resources(self, version):
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return {}
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class InvalidDHCPAgent(agent.AgentNotFound):
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message = _("Agent %(id)s is not a valid DHCP Agent or has been disabled")
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class NetworkHostedByDHCPAgent(exceptions.Conflict):
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message = _("The network %(network_id)s has been already hosted"
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" by the DHCP Agent %(agent_id)s.")
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class NetworkNotHostedByDhcpAgent(exceptions.Conflict):
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message = _("The network %(network_id)s is not hosted"
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" by the DHCP agent %(agent_id)s.")
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class DhcpAgentSchedulerPluginBase(object):
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"""REST API to operate the DHCP agent scheduler.
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All of method must be in an admin context.
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"""
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@abc.abstractmethod
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def add_network_to_dhcp_agent(self, context, id, network_id):
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pass
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@abc.abstractmethod
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def remove_network_from_dhcp_agent(self, context, id, network_id):
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pass
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@abc.abstractmethod
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def list_networks_on_dhcp_agent(self, context, id):
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pass
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@abc.abstractmethod
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def list_dhcp_agents_hosting_network(self, context, network_id):
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pass
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