python-tackerclient/tackerclient/osc/utils.py

208 lines
7.5 KiB
Python

# Copyright 2016 NEC Corporation
#
# 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.
"""This module should contain OSC plugin generic methods.
Methods in this module are candidates adopted to osc-lib.
Stuffs specific to tackerclient OSC plugin should not be added
to this module. They should go to tackerclient.osc.v1.utils.
"""
import operator
from keystoneclient import exceptions as identity_exc
from keystoneclient.v3 import domains
from keystoneclient.v3 import projects
from osc_lib import utils
from oslo_serialization import jsonutils
from tackerclient.i18n import _
LIST_BOTH = 'both'
LIST_SHORT_ONLY = 'short_only'
LIST_LONG_ONLY = 'long_only'
def format_dict_with_indention(data):
"""Return a formatted string of key value pairs
:param data: a dict
:rtype: a string formatted to key='value'
"""
if data is None:
return None
return jsonutils.dumps(data, indent=4)
def get_column_definitions(attr_map, long_listing):
"""Return table headers and column names for a listing table.
:param attr_map: a list of table entry definitions.
Each entry should be a tuple consisting of
(API attribute name, header name, listing mode). For example:
(('id', 'ID', LIST_BOTH),
('name', 'Name', LIST_BOTH),
('tenant_id', 'Project', LIST_LONG_ONLY))
The third field of each tuple must be one of LIST_BOTH,
LIST_LONG_ONLY (a corresponding column is shown only in a long mode), or
LIST_SHORT_ONLY (a corresponding column is shown only in a short mode).
:param long_listing: A boolean value which indicates a long listing
or not. In most cases, parsed_args.long is passed to this argument.
:return: A tuple of a list of table headers and a list of column names.
"""
if long_listing:
headers = [hdr for col, hdr, listing_mode in attr_map
if listing_mode in (LIST_BOTH, LIST_LONG_ONLY)]
columns = [col for col, hdr, listing_mode in attr_map
if listing_mode in (LIST_BOTH, LIST_LONG_ONLY)]
else:
headers = [hdr for col, hdr, listing_mode in attr_map
if listing_mode in (LIST_BOTH, LIST_SHORT_ONLY)]
columns = [col for col, hdr, listing_mode in attr_map
if listing_mode in (LIST_BOTH, LIST_SHORT_ONLY)]
return headers, columns
def get_columns(item, attr_map=None):
"""Return pair of resource attributes and corresponding display names.
Assume the following item and attr_map are passed.
item: {'id': 'myid', 'name': 'myname',
'foo': 'bar', 'tenant_id': 'mytenan'}
attr_map:
(('id', 'ID', LIST_BOTH),
('name', 'Name', LIST_BOTH),
('tenant_id', 'Project', LIST_LONG_ONLY))
This method returns:
(('id', 'name', 'tenant_id', 'foo'), # attributes
('ID', 'Name', 'Project', 'foo') # display names
Both tuples of attributes and display names are sorted by display names
in the alphabetical order.
Attributes not found in a given attr_map are kept as-is.
:param item: a dictionary which represents a resource.
Keys of the dictionary are expected to be attributes of the resource.
Values are not referred to by this method.
:param attr_map: a list of mapping from attribute to display name.
The same format is used as for get_column_definitions attr_map.
:return: A pair of tuple of attributes and tuple of display names.
"""
attr_map = attr_map or tuple([])
_attr_map_dict = dict((col, hdr) for col, hdr, listing_mode in attr_map)
columns = [(column, _attr_map_dict.get(column, column))
for column in item.keys()]
columns = sorted(columns, key=operator.itemgetter(1))
return (tuple(col[0] for col in columns),
tuple(col[1] for col in columns))
# TODO(amotoki): Use osc-lib version once osc-lib provides this.
def add_project_owner_option_to_parser(parser):
"""Register project and project domain options.
:param parser: argparse.Argument parser object.
"""
parser.add_argument(
'--project',
metavar='<project>',
help=_("Owner's project (name or ID)")
)
# Borrowed from openstackclient.identity.common
# as it is not exposed officially.
parser.add_argument(
'--project-domain',
metavar='<project-domain>',
help=_('Domain the project belongs to (name or ID). '
'This can be used in case collisions between project names '
'exist.'),
)
# The following methods are borrowed from openstackclient.identity.common
# as it is not exposed officially.
# TODO(amotoki): Use osc-lib version once osc-lib provides this.
def find_domain(identity_client, name_or_id):
return _find_identity_resource(identity_client.domains, name_or_id,
domains.Domain)
def find_project(identity_client, name_or_id, domain_name_or_id=None):
domain_id = _get_domain_id_if_requested(identity_client, domain_name_or_id)
if not domain_id:
return _find_identity_resource(identity_client.projects, name_or_id,
projects.Project)
else:
return _find_identity_resource(identity_client.projects, name_or_id,
projects.Project, domain_id=domain_id)
def _get_domain_id_if_requested(identity_client, domain_name_or_id):
if not domain_name_or_id:
return None
domain = find_domain(identity_client, domain_name_or_id)
return domain.id
def _find_identity_resource(identity_client_manager, name_or_id,
resource_type, **kwargs):
"""Find a specific identity resource.
Using keystoneclient's manager, attempt to find a specific resource by its
name or ID. If Forbidden to find the resource (a common case if the user
does not have permission), then return the resource by creating a local
instance of keystoneclient's Resource.
The parameter identity_client_manager is a keystoneclient manager,
for example: keystoneclient.v3.users or keystoneclient.v3.projects.
The parameter resource_type is a keystoneclient resource, for example:
keystoneclient.v3.users.User or keystoneclient.v3.projects.Project.
:param identity_client_manager: the manager that contains the resource
:type identity_client_manager: `keystoneclient.base.CrudManager`
:param name_or_id: the resources's name or ID
:type name_or_id: string
:param resource_type: class that represents the resource type
:type resource_type: `keystoneclient.base.Resource`
:returns: the resource in question
:rtype: `keystoneclient.base.Resource`
"""
try:
identity_resource = utils.find_resource(identity_client_manager,
name_or_id, **kwargs)
if identity_resource is not None:
return identity_resource
except identity_exc.Forbidden:
pass
return resource_type(None, {'id': name_or_id, 'name': name_or_id})
# The above are borrowed from openstackclient.identity.common.