x/vmware-nsx
Code Issues Proposed changes

Remove dupl. for get_resources in adv. services

Browse Source 
There is duplication of logic related to creating API resources
for advanced services extensions. Extracted the common logic
out into a new module that can be used by the services.
There are already UT cases in the services that exercises
the logic, so no new tests were added.

Change-Id: Ib52e2de6f215a1755f11a382dc4451a05ce3b147
Closes-Bug: 1258656
This commit is contained in:
Paul Michali 2013-12-24 16:17:02 -05:00
parent eb12fd9aeb
commit e0f4a5d27c
6 changed files with 130 additions and 166 deletions
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75
neutron/api/v2/resource_helper.py Normal file
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@ -0,0 +1,75 @@
# (c) Copyright 2014 Cisco Systems 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.
# @author: Paul Michali Cisco Systems, Inc.
from oslo.config import cfg
from neutron.api import extensions
from neutron.api.v2 import base
from neutron import manager
from neutron.plugins.common import constants
from neutron import quota
def build_plural_mappings(special_mappings, resource_map):
"""Create plural to singular mapping for all resources.
Allows for special mappings to be provided, like policies -> policy.
Otherwise, will strip off the last character for normal mappings, like
routers -> router.
"""
plural_mappings = {}
for plural in resource_map:
singular = special_mappings.get(plural, plural[:-1])
plural_mappings[plural] = singular
return plural_mappings
def build_resource_info(plural_mappings, resource_map, which_service,
action_map=None, register_quota=False,
translate_name=False, allow_bulk=False):
"""Build resources for advanced services.
Takes the resource information, and singular/plural mappings, and creates
API resource objects for advanced services extensions. Will optionally
translate underscores to dashes in resource names, register the resource,
and accept action information for resources.
"""
resources = []
if action_map is None:
action_map = {}
plugin = manager.NeutronManager.get_service_plugins()[which_service]
for collection_name in resource_map:
resource_name = plural_mappings[collection_name]
params = resource_map.get(collection_name, {})
if translate_name:
collection_name = collection_name.replace('_', '-')
if register_quota:
quota.QUOTAS.register_resource_by_name(resource_name)
member_actions = action_map.get(resource_name, {})
controller = base.create_resource(
collection_name, resource_name, plugin, params,
member_actions=member_actions,
allow_bulk=allow_bulk,
allow_pagination=cfg.CONF.allow_pagination,
allow_sorting=cfg.CONF.allow_sorting)
resource = extensions.ResourceExtension(
collection_name,
controller,
path_prefix=constants.COMMON_PREFIXES[which_service],
member_actions=member_actions,
attr_map=params)
resources.append(resource)
return resources

53
neutron/extensions/firewall.py
View File

@ -24,9 +24,8 @@ import six
from neutron.api import extensions
from neutron.api.v2 import attributes as attr
from neutron.api.v2 import base
from neutron.api.v2 import resource_helper
from neutron.common import exceptions as qexception
from neutron import manager
from neutron.openstack.common import log as logging
from neutron.plugins.common import constants
from neutron.services.service_base import ServicePluginBase
@ -321,46 +320,16 @@ class Firewall(extensions.ExtensionDescriptor):
@classmethod
def get_resources(cls):
my_plurals = []
for plural in RESOURCE_ATTRIBUTE_MAP:
if plural == 'firewall_policies':
singular = 'firewall_policy'
else:
singular = plural[:-1]
my_plurals.append((plural, singular))
attr.PLURALS.update(dict(my_plurals))
resources = []
plugin = manager.NeutronManager.get_service_plugins()[
constants.FIREWALL]
for collection_name in RESOURCE_ATTRIBUTE_MAP:
# Special handling needed for resources with 'y' ending
if collection_name == 'firewall_policies':
resource_name = 'firewall_policy'
else:
resource_name = collection_name[:-1]
params = RESOURCE_ATTRIBUTE_MAP[collection_name]
member_actions = {}
if resource_name == 'firewall_policy':
member_actions = {'insert_rule': 'PUT',
'remove_rule': 'PUT'}
controller = base.create_resource(
collection_name, resource_name, plugin, params,
member_actions=member_actions,
allow_pagination=cfg.CONF.allow_pagination,
allow_sorting=cfg.CONF.allow_sorting)
resource = extensions.ResourceExtension(
collection_name,
controller,
path_prefix=constants.COMMON_PREFIXES[constants.FIREWALL],
member_actions=member_actions,
attr_map=params)
resources.append(resource)
return resources
special_mappings = {'firewall_policies': 'firewall_policy'}
plural_mappings = resource_helper.build_plural_mappings(
special_mappings, RESOURCE_ATTRIBUTE_MAP)
attr.PLURALS.update(plural_mappings)
action_map = {'firewall_policy': {'insert_rule': 'PUT',
'remove_rule': 'PUT'}}
return resource_helper.build_resource_info(plural_mappings,
RESOURCE_ATTRIBUTE_MAP,
constants.FIREWALL,
action_map=action_map)
@classmethod
def get_plugin_interface(cls):

43
neutron/extensions/l3.py
View File

@ -24,11 +24,9 @@ from oslo.config import cfg
from neutron.api import extensions
from neutron.api.v2 import attributes as attr
from neutron.api.v2 import base
from neutron.api.v2 import resource_helper
from neutron.common import exceptions as qexception
from neutron import manager
from neutron.plugins.common import constants
from neutron import quota
# L3 Exceptions
@ -176,35 +174,16 @@ class L3(extensions.ExtensionDescriptor):
@classmethod
def get_resources(cls):
"""Returns Ext Resources."""
my_plurals = [(key, key[:-1]) for key in RESOURCE_ATTRIBUTE_MAP.keys()]
attr.PLURALS.update(dict(my_plurals))
exts = []
plugin = manager.NeutronManager.get_service_plugins()[
constants.L3_ROUTER_NAT]
for resource_name in ['router', 'floatingip']:
collection_name = resource_name + "s"
params = RESOURCE_ATTRIBUTE_MAP.get(collection_name, dict())
member_actions = {}
if resource_name == 'router':
member_actions = {'add_router_interface': 'PUT',
'remove_router_interface': 'PUT'}
quota.QUOTAS.register_resource_by_name(resource_name)
controller = base.create_resource(
collection_name, resource_name, plugin, params,
member_actions=member_actions,
allow_pagination=cfg.CONF.allow_pagination,
allow_sorting=cfg.CONF.allow_sorting)
ex = extensions.ResourceExtension(collection_name,
controller,
member_actions=member_actions,
attr_map=params)
exts.append(ex)
return exts
plural_mappings = resource_helper.build_plural_mappings(
{}, RESOURCE_ATTRIBUTE_MAP)
attr.PLURALS.update(plural_mappings)
action_map = {'router': {'add_router_interface': 'PUT',
'remove_router_interface': 'PUT'}}
return resource_helper.build_resource_info(plural_mappings,
RESOURCE_ATTRIBUTE_MAP,
constants.L3_ROUTER_NAT,
action_map=action_map,
register_quota=True)
def update_attributes_map(self, attributes):
super(L3, self).update_attributes_map(

39
neutron/extensions/loadbalancer.py
View File

@ -17,12 +17,12 @@
import abc
from oslo.config import cfg
import six
from neutron.api import extensions
from neutron.api.v2 import attributes as attr
from neutron.api.v2 import base
from neutron.api.v2 import resource_helper
from neutron.common import exceptions as qexception
from neutron import manager
from neutron.plugins.common import constants
@ -315,36 +315,17 @@ class Loadbalancer(extensions.ExtensionDescriptor):
@classmethod
def get_resources(cls):
my_plurals = [(key, key[:-1]) for key in RESOURCE_ATTRIBUTE_MAP.keys()]
my_plurals.append(('health_monitors_status', 'health_monitor_status'))
attr.PLURALS.update(dict(my_plurals))
resources = []
plural_mappings = resource_helper.build_plural_mappings(
{}, RESOURCE_ATTRIBUTE_MAP)
plural_mappings['health_monitors_status'] = 'health_monitor_status'
attr.PLURALS.update(plural_mappings)
action_map = {'pool': {'stats': 'GET'}}
resources = resource_helper.build_resource_info(plural_mappings,
RESOURCE_ATTRIBUTE_MAP,
constants.LOADBALANCER,
action_map=action_map)
plugin = manager.NeutronManager.get_service_plugins()[
constants.LOADBALANCER]
for collection_name in RESOURCE_ATTRIBUTE_MAP:
# Special handling needed for resources with 'y' ending
# (e.g. proxies -> proxy)
resource_name = collection_name[:-1]
params = RESOURCE_ATTRIBUTE_MAP[collection_name]
member_actions = {}
if resource_name == 'pool':
member_actions = {'stats': 'GET'}
controller = base.create_resource(
collection_name, resource_name, plugin, params,
member_actions=member_actions,
allow_pagination=cfg.CONF.allow_pagination,
allow_sorting=cfg.CONF.allow_sorting)
resource = extensions.ResourceExtension(
collection_name,
controller,
path_prefix=constants.COMMON_PREFIXES[constants.LOADBALANCER],
member_actions=member_actions,
attr_map=params)
resources.append(resource)
for collection_name in SUB_RESOURCE_ATTRIBUTE_MAP:
# Special handling needed for sub-resources with 'y' ending
# (e.g. proxies -> proxy)

38
neutron/extensions/metering.py
View File

@ -20,9 +20,8 @@ import six
from neutron.api import extensions
from neutron.api.v2 import attributes as attr
from neutron.api.v2 import base
from neutron.api.v2 import resource_helper
from neutron.common import exceptions as qexception
from neutron import manager
from neutron.openstack.common import log as logging
from neutron.plugins.common import constants
from neutron.services import service_base
@ -112,31 +111,16 @@ class Metering(extensions.ExtensionDescriptor):
@classmethod
def get_resources(cls):
"""Returns Ext Resources."""
my_plurals = [(key, key[:-1]) for key in RESOURCE_ATTRIBUTE_MAP.keys()]
attr.PLURALS.update(dict(my_plurals))
exts = []
plugin = manager.NeutronManager.get_service_plugins()[
constants.METERING]
for resource_name in ['metering_label', 'metering_label_rule']:
collection_name = resource_name + "s"
collection_name = collection_name.replace('_', '-')
params = RESOURCE_ATTRIBUTE_MAP.get(resource_name + "s", dict())
controller = base.create_resource(collection_name,
resource_name,
plugin, params, allow_bulk=True,
allow_pagination=True,
allow_sorting=True)
ex = extensions.ResourceExtension(
collection_name,
controller,
path_prefix=constants.COMMON_PREFIXES[constants.METERING],
attr_map=params)
exts.append(ex)
return exts
plural_mappings = resource_helper.build_plural_mappings(
{}, RESOURCE_ATTRIBUTE_MAP)
attr.PLURALS.update(plural_mappings)
# PCM: Metering sets pagination and sorting to True. Do we have cfg
# entries for these so can be read? Else, must pass in.
return resource_helper.build_resource_info(plural_mappings,
RESOURCE_ATTRIBUTE_MAP,
constants.METERING,
translate_name=True,
allow_bulk=True)
def update_attributes_map(self, attributes):
super(Metering, self).update_attributes_map(

48
neutron/extensions/vpnaas.py
View File

@ -19,16 +19,13 @@
import abc
from oslo.config import cfg
import six
from neutron.api import extensions
from neutron.api.v2 import attributes as attr
from neutron.api.v2 import base
from neutron.api.v2 import resource_helper
from neutron.common import exceptions as qexception
from neutron import manager
from neutron.plugins.common import constants
from neutron import quota
from neutron.services.service_base import ServicePluginBase
@ -359,38 +356,17 @@ class Vpnaas(extensions.ExtensionDescriptor):
@classmethod
def get_resources(cls):
plural_mapping = {
'ikepolicies': 'ikepolicy',
'ipsecpolicies': 'ipsecpolicy'
}
my_plurals = []
for plural in RESOURCE_ATTRIBUTE_MAP:
singular = plural_mapping.get(plural, plural[:-1])
my_plurals.append((plural, singular))
my_plurals.append(('peer_cidrs', 'peer_cidr'))
attr.PLURALS.update(dict(my_plurals))
resources = []
plugin = manager.NeutronManager.get_service_plugins()[
constants.VPN]
for collection_name in RESOURCE_ATTRIBUTE_MAP:
resource_name = plural_mapping.get(
collection_name, collection_name[:-1])
params = RESOURCE_ATTRIBUTE_MAP[collection_name]
collection_name = collection_name.replace('_', '-')
quota.QUOTAS.register_resource_by_name(resource_name)
controller = base.create_resource(
collection_name, resource_name, plugin, params,
allow_pagination=cfg.CONF.allow_pagination,
allow_sorting=cfg.CONF.allow_sorting)
resource = extensions.ResourceExtension(
collection_name,
controller,
path_prefix=constants.COMMON_PREFIXES[constants.VPN],
attr_map=params)
resources.append(resource)
return resources
special_mappings = {'ikepolicies': 'ikepolicy',
'ipsecpolicies': 'ipsecpolicy'}
plural_mappings = resource_helper.build_plural_mappings(
special_mappings, RESOURCE_ATTRIBUTE_MAP)
plural_mappings['peer_cidrs'] = 'peer_cidr'
attr.PLURALS.update(plural_mappings)
return resource_helper.build_resource_info(plural_mappings,
RESOURCE_ATTRIBUTE_MAP,
constants.VPN,
register_quota=True,
translate_name=True)
@classmethod
def get_plugin_interface(cls):