python-manilaclient/manilaclient/utils.py
lijunbo ea93a0b86e Fix 'List' command filters do not accept unicode symbols
When using the name or description to filter the share list,
share group list, share network list or snapshot list, if the
name or description is unicode symbols, the query will fail due to the
invalid str value. This change is to fix them.

Change-Id: I73ed2b675542d3aeedc9efdba08067819bf7d3e4
Closes-bug: #1712988
2017-11-18 09:18:39 +00:00

72 lines
2.1 KiB
Python

# 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 six
class HookableMixin(object):
"""Mixin so classes can register and run hooks."""
_hooks_map = {}
@classmethod
def add_hook(cls, hook_type, hook_func):
if hook_type not in cls._hooks_map:
cls._hooks_map[hook_type] = []
cls._hooks_map[hook_type].append(hook_func)
@classmethod
def run_hooks(cls, hook_type, *args, **kwargs):
hook_funcs = cls._hooks_map.get(hook_type) or []
for hook_func in hook_funcs:
hook_func(*args, **kwargs)
def safe_issubclass(*args):
"""Like issubclass, but will just return False if not a class."""
try:
if issubclass(*args):
return True
except TypeError:
pass
return False
def get_function_name(func):
if six.PY2:
if hasattr(func, "im_class"):
return "%s.%s" % (func.im_class, func.__name__)
else:
return "%s.%s" % (func.__module__, func.__name__)
else:
return "%s.%s" % (func.__module__, func.__qualname__)
def _encode(src):
"""remove extra 'u' in PY2."""
if six.PY2 and isinstance(src, unicode):
return src.encode('utf-8')
return src
def unicode_key_value_to_string(src):
"""Recursively converts dictionary keys to strings."""
if isinstance(src, dict):
return dict((_encode(k),
_encode(unicode_key_value_to_string(v)))
for k, v in src.items())
if isinstance(src, list):
return [unicode_key_value_to_string(l) for l in src]
return _encode(src)