b133b85ec1
1.As mentioned in [1], we should avoid using six.iteritems to achieve iterators. We can use dict.items instead, as it will return iterators in PY3 as well. And dict.items/keys will more readable. 2.In py2, the performance about list should be negligible, see the link [2]. [1] https://wiki.openstack.org/wiki/Python3 [2] http://lists.openstack.org/pipermail/openstack-dev/2015-June/066391.html Change-Id: I0c903ca9d566c89e4e0d6bd129dc1f7bc3e95db9
62 lines
1.7 KiB
Python
62 lines
1.7 KiB
Python
#
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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 copy
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from heat.engine.resources.openstack.neutron import net
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from heat.engine.resources.openstack.neutron import port
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from heat.engine.resources.openstack.neutron import subnet
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def _copy_schema_immutable(schema):
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new_schema = copy.deepcopy(schema)
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if not schema.update_allowed:
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new_schema.immutable = True
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return new_schema
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class ImmutableNet(net.Net):
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'''Ensure an existing net doesn't change.'''
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properties_schema = {
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k: _copy_schema_immutable(v)
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for k, v in net.Net.properties_schema.items()
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}
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class ImmutablePort(port.Port):
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'''Ensure an existing port doesn't change.'''
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properties_schema = {
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k: _copy_schema_immutable(v)
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for k, v in port.Port.properties_schema.items()
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}
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class ImmutableSubnet(subnet.Subnet):
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'''Ensure an existing subnet doesn't change.'''
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properties_schema = {
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k: _copy_schema_immutable(v)
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for k, v in subnet.Subnet.properties_schema.items()
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}
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def resource_mapping():
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return {
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'OS::Neutron::Net': ImmutableNet,
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'OS::Neutron::Port': ImmutablePort,
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'OS::Neutron::Subnet': ImmutableSubnet,
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}
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