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# Copyright 2016 Huawei, Inc. All rights reserved.
#
# 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.
#
import logging
from oslo_serialization import jsonutils
from cyborgclient import exceptions as exc
LOG = logging.getLogger(__name__)
def common_filters(marker=None, limit=None, sort_key=None, sort_dir=None):
"""Generate common filters for any list request.
:param marker: entity ID from which to start returning entities.
:param limit: maximum number of entities to return.
:param sort_key: field to use for sorting.
:param sort_dir: direction of sorting: 'asc' or 'desc'.
:returns: list of string filters.
"""
filters = []
if isinstance(limit, int):
filters.append('filters.field=limit')
filters.append('filters.value=%d' % limit)
if marker is not None:
filters.append('filters.field=marker')
filters.append('filters.value=%s' % marker)
if sort_key is not None:
filters.append('filters.field=sort_key')
filters.append('filters.value=%s' % sort_key)
if sort_dir is not None:
filters.append('filters.field=sort_dir')
filters.append('filters.value=%s' % sort_dir)
return filters
def add_filters(filters, **kwargs):
if kwargs:
for field, value in kwargs.iteritems():
filters.append('filters.field=%s' % field)
filters.append('filters.value=%s' % value)
return filters
def print_list_field(field):
return lambda obj: ', '.join(getattr(obj, field))
def get_response_body(resp):
body = resp.content
content_type = resp.headers.get('Content-Type', '')
if 'application/json' in content_type:
try:
body = resp.json()
except ValueError:
LOG.error('Could not decode response body as JSON')
elif 'application/octet-stream' in content_type:
try:
body = resp.body()
except ValueError:
LOG.error('Could not decode response body as raw')
else:
body = None
return body
def addresses_formatter(network_client, networks):
output = []
for (network, addresses) in networks.items():
if not addresses:
continue
addrs = [addr['addr'] for addr in addresses]
network_data = network_client.find_network(
network, ignore_missing=False)
net_ident = network_data.name or network_data.id
addresses_csv = ', '.join(addrs)
group = "%s=%s" % (net_ident, addresses_csv)
output.append(group)
return '; '.join(output)
def image_formatter(image_client, image_id):
if image_id:
image = image_client.images.get(image_id)
return '%s (%s)' % (image.name, image_id)
return ''
def flavor_formatter(bc_client, flavor_id):
if flavor_id:
flavor = bc_client.flavor.get(flavor_id)
return '%s (%s)' % (flavor.name, flavor_id)
return ''
def clean_listing_columns(headers, columns, data_sample):
col_headers = []
cols = []
for header, col in zip(headers, columns):
if hasattr(data_sample, col):
col_headers.append(header)
cols.append(col)
return tuple(col_headers), tuple(cols)
def json_formatter(js):
return jsonutils.dumps(js, indent=2, ensure_ascii=False)
def split_and_deserialize(string):
"""Split and try to JSON deserialize a string.
Gets a string with the KEY=VALUE format, split it (using '=' as the
separator) and try to JSON deserialize the VALUE.
:returns: A tuple of (key, value).
"""
try:
key, value = string.split("=", 1)
except ValueError:
raise exc.CommandError(_('Attributes must be a list of '
'PATH=VALUE not "%s"') % string)
try:
value = jsonutils.loads(value)
except ValueError:
pass
return (key, value)
def args_array_to_patch(op, attributes):
patch = []
for attr in attributes:
# Sanitize
if not attr.startswith('/'):
attr = '/' + attr
if op in ['add', 'replace']:
path, value = split_and_deserialize(attr)
patch.append({'op': op, 'path': path, 'value': value})
elif op == "remove":
# For remove only the key is needed
patch.append({'op': op, 'path': attr})
else:
raise exc.CommandError(_('Unknown PATCH operation: %s') % op)
return patch
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