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# Copyright 2014 - Mirantis, 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 abc
import textwrap
from osc_lib.command import command
import six
@six.add_metaclass(abc.ABCMeta)
class MistralLister(command.Lister):
@abc.abstractmethod
def _get_format_function(self):
raise NotImplementedError
@abc.abstractmethod
def _get_resources(self, parsed_args):
"""Gets a list of API resources (e.g. using client)."""
raise NotImplementedError
def _validate_parsed_args(self, parsed_args):
# No-op by default.
pass
def take_action(self, parsed_args):
self._validate_parsed_args(parsed_args)
f = self._get_format_function()
ret = self._get_resources(parsed_args)
if not isinstance(ret, list):
ret = [ret]
data = [f(r)[1] for r in ret]
if data:
return f()[0], data
else:
return f()
def cut(string, length=25):
if string and len(string) > length:
return "%s..." % string[:length]
else:
return string
def wrap(string, width=25):
if string and len(string) > width:
return textwrap.fill(string, width)
else:
return string
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