python-troveclient/troveclient/osc/v1/database_configurations.py

#    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.

"""Database v1 Configurations action implementations"""

import json
from osc_lib.command import command
from osc_lib import utils as osc_utils
import six

from troveclient import exceptions
from troveclient.i18n import _
from troveclient import utils


def set_attributes_for_print_detail(configuration):
    info = configuration._info.copy()
    info['values'] = json.dumps(configuration.values)
    del info['datastore_version_id']
    return info


class ListDatabaseConfigurations(command.Lister):

    _description = _("List database configurations")
    columns = ['ID', 'Name', 'Description', 'Datastore Name',
               'Datastore Version Name']

    def get_parser(self, prog_name):
        parser = super(ListDatabaseConfigurations, self).get_parser(prog_name)
        parser.add_argument(
            '--limit',
            dest='limit',
            metavar='<limit>',
            type=int,
            default=None,
            help=_('Limit the number of results displayed.')
        )
        parser.add_argument(
            '--marker',
            dest='marker',
            metavar='<ID>',
            help=_('Begin displaying the results for IDs greater than the '
                   'specified marker. When used with --limit, set this to '
                   'the last ID displayed in the previous run.')
        )
        return parser

    def take_action(self, parsed_args):
        db_configurations = self.app.client_manager.database.configurations
        config = db_configurations.list(limit=parsed_args.limit,
                                        marker=parsed_args.marker)
        config = [osc_utils.get_item_properties(c, self.columns)
                  for c in config]
        return self.columns, config


class ShowDatabaseConfiguration(command.ShowOne):
    _description = _("Shows details of a database configuration group.")

    def get_parser(self, prog_name):
        parser = super(ShowDatabaseConfiguration, self).get_parser(prog_name)
        parser.add_argument(
            'configuration_group',
            metavar='<configuration_group>',
            help=_('ID or name of the configuration group'),
        )
        return parser

    def take_action(self, parsed_args):
        db_configurations = self.app.client_manager.database.configurations
        configuration = osc_utils.find_resource(
            db_configurations, parsed_args.configuration_group)
        configuration = set_attributes_for_print_detail(configuration)
        return zip(*sorted(six.iteritems(configuration)))


class ListDatabaseConfigurationParameters(command.Lister):

    _description = _("Lists available parameters for a configuration group.")
    columns = ['Name', 'Type', 'Min Size', 'Max Size', 'Restart Required']

    def get_parser(self, prog_name):
        parser = super(ListDatabaseConfigurationParameters, self).\
            get_parser(prog_name)
        parser.add_argument(
            'datastore_version',
            metavar='<datastore_version>',
            help=_('Datastore version name or ID assigned'
                   'to the configuration group.')
        )
        parser.add_argument(
            '--datastore',
            metavar='<datastore>',
            default=None,
            help=_('ID or name of the datastore to list configuration'
                   'parameters for. Optional if the ID of the'
                   'datastore_version is provided.')
        )
        return parser

    def take_action(self, parsed_args):
        db_configuration_parameters = self.app.client_manager.\
            database.configuration_parameters
        if parsed_args.datastore:
            params = db_configuration_parameters.\
                parameters(parsed_args.datastore,
                           parsed_args.datastore_version)
        elif utils.is_uuid_like(parsed_args.datastore_version):
            params = db_configuration_parameters.\
                parameters_by_version(parsed_args.datastore_version)
        else:
            raise exceptions.NoUniqueMatch(_('The datastore name or id is'
                                             ' required to retrieve the'
                                             ' parameters for the'
                                             ' configuration group'
                                             ' by name.'))
        for param in params:
            setattr(param, 'min_size', getattr(param, 'min', '-'))
            setattr(param, 'max_size', getattr(param, 'max', '-'))
        params = [osc_utils.get_item_properties(p, self.columns)
                  for p in params]
        return self.columns, params