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 Co-Authored-By: Akihiro Motoki <amotoki@gmail.com> Change-Id: I4b9edb326444264c0f6c4ad281acaac356a07e85 Implements: blueprint replace-iteritems-with-items
		
			
				
	
	
		
			272 lines
		
	
	
		
			9.0 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			272 lines
		
	
	
		
			9.0 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
#   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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#
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"""Limits action implementations."""
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import logging
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from osc_lib.command import command
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from osc_lib import exceptions
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from osc_lib import utils
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from openstackclient.i18n import _
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from openstackclient.identity import common as common_utils
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LOG = logging.getLogger(__name__)
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class CreateLimit(command.ShowOne):
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    _description = _("Create a limit")
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    def get_parser(self, prog_name):
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        parser = super(CreateLimit, self).get_parser(prog_name)
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        parser.add_argument(
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            '--description',
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            metavar='<description>',
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            help=_('Description of the limit'),
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        )
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        parser.add_argument(
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            '--region',
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            metavar='<region>',
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            help=_('Region for the limit to affect.'),
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        )
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        parser.add_argument(
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            '--project',
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            metavar='<project>',
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            required=True,
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            help=_('Project to associate the resource limit to'),
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        )
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        parser.add_argument(
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            '--service',
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            metavar='<service>',
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            required=True,
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            help=_('Service responsible for the resource to limit'),
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        )
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        parser.add_argument(
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            '--resource-limit',
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            metavar='<resource-limit>',
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            required=True,
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            type=int,
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            help=_('The resource limit for the project to assume'),
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        )
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        parser.add_argument(
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            'resource_name',
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            metavar='<resource-name>',
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            help=_('The name of the resource to limit'),
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        )
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        return parser
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    def take_action(self, parsed_args):
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        identity_client = self.app.client_manager.identity
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        project = common_utils.find_project(
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            identity_client, parsed_args.project
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        )
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        service = common_utils.find_service(
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            identity_client, parsed_args.service
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        )
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        region = None
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        if parsed_args.region:
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            val = getattr(parsed_args, 'region', None)
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            if 'None' not in val:
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                # NOTE (vishakha): Due to bug #1799153 and for any another
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                # related case where GET resource API does not support the
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                # filter by name, osc_lib.utils.find_resource() method cannot
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                # be used because that method try to fall back to list all the
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                # resource if requested resource cannot be get via name. Which
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                # ends up with NoUniqueMatch error.
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                # So osc_lib.utils.find_resource() function cannot be used for
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                # 'regions', using common_utils.get_resource() instead.
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                region = common_utils.get_resource(
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                    identity_client.regions, parsed_args.region
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                )
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        limit = identity_client.limits.create(
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            project,
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            service,
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            parsed_args.resource_name,
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            parsed_args.resource_limit,
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            description=parsed_args.description,
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            region=region
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        )
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        limit._info.pop('links', None)
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        return zip(*sorted(limit._info.items()))
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class ListLimit(command.Lister):
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    _description = _("List limits")
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    def get_parser(self, prog_name):
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        parser = super(ListLimit, self).get_parser(prog_name)
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        parser.add_argument(
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            '--service',
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            metavar='<service>',
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            help=_('Service responsible for the resource to limit'),
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        )
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        parser.add_argument(
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            '--resource-name',
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            metavar='<resource-name>',
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            dest='resource_name',
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            help=_('The name of the resource to limit'),
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        )
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        parser.add_argument(
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            '--region',
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            metavar='<region>',
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            help=_('Region for the registered limit to affect.'),
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        )
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        parser.add_argument(
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            '--project',
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            metavar='<project>',
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            help=_('List resource limits associated with project'),
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        )
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        return parser
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    def take_action(self, parsed_args):
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        identity_client = self.app.client_manager.identity
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        service = None
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        if parsed_args.service:
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            service = common_utils.find_service(
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                identity_client, parsed_args.service
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            )
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        region = None
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        if parsed_args.region:
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            region = utils.find_resource(
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                identity_client.regions, parsed_args.region
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            )
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            val = getattr(parsed_args, 'region', None)
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            if 'None' not in val:
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                # NOTE (vishakha): Due to bug #1799153 and for any another
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                # related case where GET resource API does not support the
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                # filter by name, osc_lib.utils.find_resource() method cannot
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                # be used because that method try to fall back to list all the
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                # resource if requested resource cannot be get via name. Which
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                # ends up with NoUniqueMatch error.
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                # So osc_lib.utils.find_resource() function cannot be used for
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                # 'regions', using common_utils.get_resource() instead.
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                region = common_utils.get_resource(
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                    identity_client.regions, parsed_args.region
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                )
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        project = None
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        if parsed_args.project:
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            project = utils.find_resource(
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                identity_client.projects, parsed_args.project
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            )
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        limits = identity_client.limits.list(
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            service=service,
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            resource_name=parsed_args.resource_name,
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            region=region,
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            project=project
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        )
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        columns = (
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            'ID', 'Project ID', 'Service ID', 'Resource Name',
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            'Resource Limit', 'Description', 'Region ID'
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        )
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        return (
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            columns,
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            (utils.get_item_properties(s, columns) for s in limits),
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        )
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class ShowLimit(command.ShowOne):
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    _description = _("Display limit details")
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    def get_parser(self, prog_name):
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        parser = super(ShowLimit, self).get_parser(prog_name)
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        parser.add_argument(
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            'limit_id',
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            metavar='<limit-id>',
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            help=_('Limit to display (ID)'),
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        )
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        return parser
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    def take_action(self, parsed_args):
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        identity_client = self.app.client_manager.identity
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        limit = identity_client.limits.get(parsed_args.limit_id)
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        limit._info.pop('links', None)
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        return zip(*sorted(limit._info.items()))
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class SetLimit(command.ShowOne):
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    _description = _("Update information about a limit")
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    def get_parser(self, prog_name):
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        parser = super(SetLimit, self).get_parser(prog_name)
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        parser.add_argument(
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            'limit_id',
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            metavar='<limit-id>',
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            help=_('Limit to update (ID)'),
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        )
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        parser.add_argument(
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            '--description',
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            metavar='<description>',
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            help=_('Description of the limit'),
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        )
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        parser.add_argument(
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            '--resource-limit',
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            metavar='<resource-limit>',
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            dest='resource_limit',
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            type=int,
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            help=_('The resource limit for the project to assume'),
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        )
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        return parser
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    def take_action(self, parsed_args):
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        identity_client = self.app.client_manager.identity
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        limit = identity_client.limits.update(
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            parsed_args.limit_id,
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            description=parsed_args.description,
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            resource_limit=parsed_args.resource_limit
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        )
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        limit._info.pop('links', None)
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        return zip(*sorted(limit._info.items()))
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class DeleteLimit(command.Command):
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    _description = _("Delete a limit")
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    def get_parser(self, prog_name):
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        parser = super(DeleteLimit, self).get_parser(prog_name)
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        parser.add_argument(
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            'limit_id',
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            metavar='<limit-id>',
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            nargs="+",
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            help=_('Limit to delete (ID)'),
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        )
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        return parser
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    def take_action(self, parsed_args):
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        identity_client = self.app.client_manager.identity
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        errors = 0
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        for limit_id in parsed_args.limit_id:
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            try:
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                identity_client.limits.delete(limit_id)
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            except Exception as e:
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                errors += 1
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                LOG.error(_("Failed to delete limit with ID "
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                            "'%(id)s': %(e)s"),
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                          {'id': limit_id, 'e': e})
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        if errors > 0:
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            total = len(parsed_args.limit_id)
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            msg = (_("%(errors)s of %(total)s limits failed to "
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                   "delete.") % {'errors': errors, 'total': total})
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            raise exceptions.CommandError(msg)
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