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
		
			
				
	
	
		
			308 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			308 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
#   Copyright 2015 iWeb Technologies Inc.
 | 
						|
#
 | 
						|
#   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.
 | 
						|
#
 | 
						|
 | 
						|
"""Volume v2 QoS action implementations"""
 | 
						|
 | 
						|
import logging
 | 
						|
 | 
						|
from osc_lib.cli import format_columns
 | 
						|
from osc_lib.cli import parseractions
 | 
						|
from osc_lib.command import command
 | 
						|
from osc_lib import exceptions
 | 
						|
from osc_lib import utils
 | 
						|
 | 
						|
from openstackclient.i18n import _
 | 
						|
 | 
						|
 | 
						|
LOG = logging.getLogger(__name__)
 | 
						|
 | 
						|
 | 
						|
class AssociateQos(command.Command):
 | 
						|
    _description = _("Associate a QoS specification to a volume type")
 | 
						|
 | 
						|
    def get_parser(self, prog_name):
 | 
						|
        parser = super(AssociateQos, self).get_parser(prog_name)
 | 
						|
        parser.add_argument(
 | 
						|
            'qos_spec',
 | 
						|
            metavar='<qos-spec>',
 | 
						|
            help=_('QoS specification to modify (name or ID)'),
 | 
						|
        )
 | 
						|
        parser.add_argument(
 | 
						|
            'volume_type',
 | 
						|
            metavar='<volume-type>',
 | 
						|
            help=_('Volume type to associate the QoS (name or ID)'),
 | 
						|
        )
 | 
						|
        return parser
 | 
						|
 | 
						|
    def take_action(self, parsed_args):
 | 
						|
        volume_client = self.app.client_manager.volume
 | 
						|
        qos_spec = utils.find_resource(volume_client.qos_specs,
 | 
						|
                                       parsed_args.qos_spec)
 | 
						|
        volume_type = utils.find_resource(volume_client.volume_types,
 | 
						|
                                          parsed_args.volume_type)
 | 
						|
 | 
						|
        volume_client.qos_specs.associate(qos_spec.id, volume_type.id)
 | 
						|
 | 
						|
 | 
						|
class CreateQos(command.ShowOne):
 | 
						|
    _description = _("Create new QoS specification")
 | 
						|
 | 
						|
    def get_parser(self, prog_name):
 | 
						|
        parser = super(CreateQos, self).get_parser(prog_name)
 | 
						|
        parser.add_argument(
 | 
						|
            'name',
 | 
						|
            metavar='<name>',
 | 
						|
            help=_('New QoS specification name'),
 | 
						|
        )
 | 
						|
        consumer_choices = ['front-end', 'back-end', 'both']
 | 
						|
        parser.add_argument(
 | 
						|
            '--consumer',
 | 
						|
            metavar='<consumer>',
 | 
						|
            choices=consumer_choices,
 | 
						|
            default='both',
 | 
						|
            help=(_('Consumer of the QoS. Valid consumers: %s '
 | 
						|
                  "(defaults to 'both')") %
 | 
						|
                  utils.format_list(consumer_choices))
 | 
						|
        )
 | 
						|
        parser.add_argument(
 | 
						|
            '--property',
 | 
						|
            metavar='<key=value>',
 | 
						|
            action=parseractions.KeyValueAction,
 | 
						|
            help=_('Set a QoS specification property '
 | 
						|
                   '(repeat option to set multiple properties)'),
 | 
						|
        )
 | 
						|
        return parser
 | 
						|
 | 
						|
    def take_action(self, parsed_args):
 | 
						|
        volume_client = self.app.client_manager.volume
 | 
						|
        specs = {}
 | 
						|
        specs.update({'consumer': parsed_args.consumer})
 | 
						|
 | 
						|
        if parsed_args.property:
 | 
						|
            specs.update(parsed_args.property)
 | 
						|
 | 
						|
        qos_spec = volume_client.qos_specs.create(parsed_args.name, specs)
 | 
						|
 | 
						|
        qos_spec._info.update(
 | 
						|
            {'properties':
 | 
						|
             format_columns.DictColumn(qos_spec._info.pop('specs'))}
 | 
						|
        )
 | 
						|
        return zip(*sorted(qos_spec._info.items()))
 | 
						|
 | 
						|
 | 
						|
class DeleteQos(command.Command):
 | 
						|
    _description = _("Delete QoS specification")
 | 
						|
 | 
						|
    def get_parser(self, prog_name):
 | 
						|
        parser = super(DeleteQos, self).get_parser(prog_name)
 | 
						|
        parser.add_argument(
 | 
						|
            'qos_specs',
 | 
						|
            metavar='<qos-spec>',
 | 
						|
            nargs="+",
 | 
						|
            help=_('QoS specification(s) to delete (name or ID)'),
 | 
						|
        )
 | 
						|
        parser.add_argument(
 | 
						|
            '--force',
 | 
						|
            action='store_true',
 | 
						|
            default=False,
 | 
						|
            help=_("Allow to delete in-use QoS specification(s)")
 | 
						|
        )
 | 
						|
        return parser
 | 
						|
 | 
						|
    def take_action(self, parsed_args):
 | 
						|
        volume_client = self.app.client_manager.volume
 | 
						|
        result = 0
 | 
						|
 | 
						|
        for i in parsed_args.qos_specs:
 | 
						|
            try:
 | 
						|
                qos_spec = utils.find_resource(volume_client.qos_specs, i)
 | 
						|
                volume_client.qos_specs.delete(qos_spec.id, parsed_args.force)
 | 
						|
            except Exception as e:
 | 
						|
                result += 1
 | 
						|
                LOG.error(_("Failed to delete QoS specification with "
 | 
						|
                            "name or ID '%(qos)s': %(e)s")
 | 
						|
                          % {'qos': i, 'e': e})
 | 
						|
 | 
						|
        if result > 0:
 | 
						|
            total = len(parsed_args.qos_specs)
 | 
						|
            msg = (_("%(result)s of %(total)s QoS specifications failed"
 | 
						|
                   " to delete.") % {'result': result, 'total': total})
 | 
						|
            raise exceptions.CommandError(msg)
 | 
						|
 | 
						|
 | 
						|
class DisassociateQos(command.Command):
 | 
						|
    _description = _("Disassociate a QoS specification from a volume type")
 | 
						|
 | 
						|
    def get_parser(self, prog_name):
 | 
						|
        parser = super(DisassociateQos, self).get_parser(prog_name)
 | 
						|
        parser.add_argument(
 | 
						|
            'qos_spec',
 | 
						|
            metavar='<qos-spec>',
 | 
						|
            help=_('QoS specification to modify (name or ID)'),
 | 
						|
        )
 | 
						|
        volume_type_group = parser.add_mutually_exclusive_group()
 | 
						|
        volume_type_group.add_argument(
 | 
						|
            '--volume-type',
 | 
						|
            metavar='<volume-type>',
 | 
						|
            help=_('Volume type to disassociate the QoS from (name or ID)'),
 | 
						|
        )
 | 
						|
        volume_type_group.add_argument(
 | 
						|
            '--all',
 | 
						|
            action='store_true',
 | 
						|
            default=False,
 | 
						|
            help=_('Disassociate the QoS from every volume type'),
 | 
						|
        )
 | 
						|
 | 
						|
        return parser
 | 
						|
 | 
						|
    def take_action(self, parsed_args):
 | 
						|
        volume_client = self.app.client_manager.volume
 | 
						|
        qos_spec = utils.find_resource(volume_client.qos_specs,
 | 
						|
                                       parsed_args.qos_spec)
 | 
						|
 | 
						|
        if parsed_args.volume_type:
 | 
						|
            volume_type = utils.find_resource(volume_client.volume_types,
 | 
						|
                                              parsed_args.volume_type)
 | 
						|
            volume_client.qos_specs.disassociate(qos_spec.id, volume_type.id)
 | 
						|
        elif parsed_args.all:
 | 
						|
            volume_client.qos_specs.disassociate_all(qos_spec.id)
 | 
						|
 | 
						|
 | 
						|
class ListQos(command.Lister):
 | 
						|
    _description = _("List QoS specifications")
 | 
						|
 | 
						|
    def take_action(self, parsed_args):
 | 
						|
        volume_client = self.app.client_manager.volume
 | 
						|
        qos_specs_list = volume_client.qos_specs.list()
 | 
						|
 | 
						|
        for qos in qos_specs_list:
 | 
						|
            try:
 | 
						|
                qos_associations = volume_client.qos_specs.get_associations(
 | 
						|
                    qos,
 | 
						|
                )
 | 
						|
                if qos_associations:
 | 
						|
                    associations = [
 | 
						|
                        association.name for association in qos_associations
 | 
						|
                    ]
 | 
						|
                    qos._info.update({'associations': associations})
 | 
						|
            except Exception as ex:
 | 
						|
                if type(ex).__name__ == 'NotFound':
 | 
						|
                    qos._info.update({'associations': None})
 | 
						|
                else:
 | 
						|
                    raise
 | 
						|
 | 
						|
        display_columns = (
 | 
						|
            'ID', 'Name', 'Consumer', 'Associations', 'Properties')
 | 
						|
 | 
						|
        columns = ('ID', 'Name', 'Consumer', 'Associations', 'Specs')
 | 
						|
        return (display_columns,
 | 
						|
                (utils.get_dict_properties(
 | 
						|
                    s._info, columns,
 | 
						|
                    formatters={
 | 
						|
                        'Specs': format_columns.DictColumn,
 | 
						|
                        'Associations': format_columns.ListColumn
 | 
						|
                    },
 | 
						|
                ) for s in qos_specs_list))
 | 
						|
 | 
						|
 | 
						|
class SetQos(command.Command):
 | 
						|
    _description = _("Set QoS specification properties")
 | 
						|
 | 
						|
    def get_parser(self, prog_name):
 | 
						|
        parser = super(SetQos, self).get_parser(prog_name)
 | 
						|
        parser.add_argument(
 | 
						|
            'qos_spec',
 | 
						|
            metavar='<qos-spec>',
 | 
						|
            help=_('QoS specification to modify (name or ID)'),
 | 
						|
        )
 | 
						|
        parser.add_argument(
 | 
						|
            '--property',
 | 
						|
            metavar='<key=value>',
 | 
						|
            action=parseractions.KeyValueAction,
 | 
						|
            help=_('Property to add or modify for this QoS specification '
 | 
						|
                   '(repeat option to set multiple properties)'),
 | 
						|
        )
 | 
						|
        return parser
 | 
						|
 | 
						|
    def take_action(self, parsed_args):
 | 
						|
        volume_client = self.app.client_manager.volume
 | 
						|
        qos_spec = utils.find_resource(volume_client.qos_specs,
 | 
						|
                                       parsed_args.qos_spec)
 | 
						|
 | 
						|
        if parsed_args.property:
 | 
						|
            volume_client.qos_specs.set_keys(qos_spec.id,
 | 
						|
                                             parsed_args.property)
 | 
						|
 | 
						|
 | 
						|
class ShowQos(command.ShowOne):
 | 
						|
    _description = _("Display QoS specification details")
 | 
						|
 | 
						|
    def get_parser(self, prog_name):
 | 
						|
        parser = super(ShowQos, self).get_parser(prog_name)
 | 
						|
        parser.add_argument(
 | 
						|
            'qos_spec',
 | 
						|
            metavar='<qos-spec>',
 | 
						|
            help=_('QoS specification to display (name or ID)'),
 | 
						|
        )
 | 
						|
        return parser
 | 
						|
 | 
						|
    def take_action(self, parsed_args):
 | 
						|
        volume_client = self.app.client_manager.volume
 | 
						|
        qos_spec = utils.find_resource(volume_client.qos_specs,
 | 
						|
                                       parsed_args.qos_spec)
 | 
						|
 | 
						|
        qos_associations = volume_client.qos_specs.get_associations(qos_spec)
 | 
						|
        if qos_associations:
 | 
						|
            associations = [association.name
 | 
						|
                            for association in qos_associations]
 | 
						|
            qos_spec._info.update({
 | 
						|
                'associations': format_columns.ListColumn(associations)
 | 
						|
            })
 | 
						|
        qos_spec._info.update(
 | 
						|
            {'properties':
 | 
						|
             format_columns.DictColumn(qos_spec._info.pop('specs'))})
 | 
						|
 | 
						|
        return zip(*sorted(qos_spec._info.items()))
 | 
						|
 | 
						|
 | 
						|
class UnsetQos(command.Command):
 | 
						|
    _description = _("Unset QoS specification properties")
 | 
						|
 | 
						|
    def get_parser(self, prog_name):
 | 
						|
        parser = super(UnsetQos, self).get_parser(prog_name)
 | 
						|
        parser.add_argument(
 | 
						|
            'qos_spec',
 | 
						|
            metavar='<qos-spec>',
 | 
						|
            help=_('QoS specification to modify (name or ID)'),
 | 
						|
        )
 | 
						|
        parser.add_argument(
 | 
						|
            '--property',
 | 
						|
            metavar='<key>',
 | 
						|
            action='append',
 | 
						|
            default=[],
 | 
						|
            help=_('Property to remove from the QoS specification. '
 | 
						|
                   '(repeat option to unset multiple properties)'),
 | 
						|
        )
 | 
						|
        return parser
 | 
						|
 | 
						|
    def take_action(self, parsed_args):
 | 
						|
        volume_client = self.app.client_manager.volume
 | 
						|
        qos_spec = utils.find_resource(volume_client.qos_specs,
 | 
						|
                                       parsed_args.qos_spec)
 | 
						|
 | 
						|
        if parsed_args.property:
 | 
						|
            volume_client.qos_specs.unset_keys(qos_spec.id,
 | 
						|
                                               parsed_args.property)
 |