neutron-lbaas/neutron/extensions/servicetype.py
Mark McClain ee3fe4e836 Rename Quantum to Neutron
This change renames everything to Neutron while providing backwards
compatible adjustments for Grizzly configuration files.

implements blueprint: remove-use-of-quantum

Change-Id: Ie7d07ba7c89857e13d4ddc8f0e9b68de020a3d19
2013-07-06 15:02:43 -04:00

212 lines
8.6 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2013 OpenStack Foundation.
# 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.
#
# @author: Salvatore Orlando, VMware
#
from neutron.api import extensions
from neutron.api.v2 import attributes
from neutron.api.v2 import base
from neutron import context
from neutron.db import servicetype_db
from neutron import manager
from neutron.openstack.common import log as logging
from neutron.plugins.common import constants
LOG = logging.getLogger(__name__)
RESOURCE_NAME = "service_type"
COLLECTION_NAME = "%ss" % RESOURCE_NAME
SERVICE_ATTR = 'service_class'
PLUGIN_ATTR = 'plugin'
DRIVER_ATTR = 'driver'
EXT_ALIAS = 'service-type'
# Attribute Map for Service Type Resource
RESOURCE_ATTRIBUTE_MAP = {
COLLECTION_NAME: {
'id': {'allow_post': False, 'allow_put': False,
'is_visible': True},
'name': {'allow_post': True, 'allow_put': True,
'validate': {'type:string': None},
'is_visible': True, 'default': ''},
'default': {'allow_post': False, 'allow_put': False,
'is_visible': True},
#TODO(salvatore-orlando): Service types should not have ownership
'tenant_id': {'allow_post': True, 'allow_put': False,
'required_by_policy': True,
'is_visible': True},
'num_instances': {'allow_post': False, 'allow_put': False,
'is_visible': True},
'service_definitions': {'allow_post': True, 'allow_put': True,
'is_visible': True, 'default': None,
'validate': {'type:service_definitions':
None}}
}
}
def set_default_svctype_id(original_id):
if not original_id:
svctype_mgr = servicetype_db.ServiceTypeManager.get_instance()
# Fetch default service type - it must exist
res = svctype_mgr.get_service_types(context.get_admin_context(),
filters={'default': [True]})
return res[0]['id']
return original_id
def _validate_servicetype_ref(data, valid_values=None):
"""Verify the service type id exists."""
svc_type_id = data
svctype_mgr = servicetype_db.ServiceTypeManager.get_instance()
try:
svctype_mgr.get_service_type(context.get_admin_context(),
svc_type_id)
except servicetype_db.ServiceTypeNotFound:
return _("The service type '%s' does not exist") % svc_type_id
def _validate_service_defs(data, valid_values=None):
"""Validate the list of service definitions."""
try:
if not data:
return _("No service type definition was provided. At least a "
"service type definition must be provided")
f_name = _validate_service_defs.__name__
for svc_def in data:
try:
# Do a copy of the original object so we can easily
# pop out stuff from it
svc_def_copy = svc_def.copy()
try:
svc_name = svc_def_copy.pop(SERVICE_ATTR)
plugin_name = svc_def_copy.pop(PLUGIN_ATTR)
except KeyError:
msg = (_("Required attributes missing in service "
"definition: %s") % svc_def)
LOG.error(_("%(f_name)s: %(msg)s"),
{'f_name': f_name, 'msg': msg})
return msg
# Validate 'service' attribute
if svc_name not in constants.ALLOWED_SERVICES:
msg = (_("Service name '%s' unspecified "
"or invalid") % svc_name)
LOG.error(_("%(f_name)s: %(msg)s"),
{'f_name': f_name, 'msg': msg})
return msg
# Validate 'plugin' attribute
if not plugin_name:
msg = (_("Plugin name not specified in "
"service definition %s") % svc_def)
LOG.error(_("%(f_name)s: %(msg)s"),
{'f_name': f_name, 'msg': msg})
return msg
# TODO(salvatore-orlando): This code will need to change when
# multiple plugins for each adv service will be supported
svc_plugin = manager.NeutronManager.get_service_plugins().get(
svc_name)
if not svc_plugin:
msg = _("No plugin for service '%s'") % svc_name
LOG.error(_("%(f_name)s: %(msg)s"),
{'f_name': f_name, 'msg': msg})
return msg
if svc_plugin.get_plugin_name() != plugin_name:
msg = _("Plugin name '%s' is not correct ") % plugin_name
LOG.error(_("%(f_name)s: %(msg)s"),
{'f_name': f_name, 'msg': msg})
return msg
# Validate 'driver' attribute (just check it's a string)
# FIXME(salvatore-orlando): This should be a list
# Note: using get() instead of pop() as pop raises if the
# key is not found, which might happen for the driver
driver = svc_def_copy.get(DRIVER_ATTR)
if driver:
msg = attributes._validate_string(driver,)
if msg:
return msg
del svc_def_copy[DRIVER_ATTR]
# Anything left - it should be an error
if svc_def_copy:
msg = (_("Unparseable attributes found in "
"service definition %s") % svc_def)
LOG.error(_("%(f_name)s: %(msg)s"),
{'f_name': f_name, 'msg': msg})
return msg
except TypeError:
LOG.exception(_("Exception while parsing service "
"definition:%s"), svc_def)
msg = (_("Was expecting a dict for service definition, found "
"the following: %s") % svc_def)
LOG.error(_("%(f_name)s: %(msg)s"),
{'f_name': f_name, 'msg': msg})
return msg
except TypeError:
return (_("%s: provided data are not iterable") %
_validate_service_defs.__name__)
attributes.validators['type:service_definitions'] = _validate_service_defs
attributes.validators['type:servicetype_ref'] = _validate_servicetype_ref
class Servicetype(extensions.ExtensionDescriptor):
@classmethod
def get_name(cls):
return _("Neutron Service Type Management")
@classmethod
def get_alias(cls):
return EXT_ALIAS
@classmethod
def get_description(cls):
return _("API for retrieving and managing service types for "
"Neutron advanced services")
@classmethod
def get_namespace(cls):
return "http://docs.openstack.org/ext/neutron/service-type/api/v1.0"
@classmethod
def get_updated(cls):
return "2013-01-20T00:00:00-00:00"
@classmethod
def get_resources(cls):
"""Returns Extended Resource for service type management."""
my_plurals = [(key, key[:-1]) for key in RESOURCE_ATTRIBUTE_MAP.keys()]
my_plurals.append(('service_definitions', 'service_definition'))
attributes.PLURALS.update(dict(my_plurals))
attr_map = RESOURCE_ATTRIBUTE_MAP[COLLECTION_NAME]
collection_name = COLLECTION_NAME.replace('_', '-')
controller = base.create_resource(
collection_name,
RESOURCE_NAME,
servicetype_db.ServiceTypeManager.get_instance(),
attr_map)
return [extensions.ResourceExtension(collection_name,
controller,
attr_map=attr_map)]
def get_extended_resources(self, version):
if version == "2.0":
return dict(RESOURCE_ATTRIBUTE_MAP.items())
else:
return {}