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Copy pathsettings.py
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92 lines (72 loc) · 2.74 KB
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# Copyright (c) Quectel Wireless Solution, Co., Ltd.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 _thread
import ujson as json
class JsonConfigureClass(object):
GET = 0x01
SET = 0x02
DEL = 0x03
def __init__(self, path, encoding='utf8'):
self.path = path
self.encoding = encoding
self.lock = _thread.allocate_lock()
self.settings = None
self.load() # first load setting from json file.
def load(self, reload=False):
if (self.settings is None) or reload:
with self.lock:
with open(self.path, 'r', encoding=self.encoding) as f:
self.settings = json.load(f)
def reload(self):
self.load(reload=True)
def save(self):
with self.lock:
with open(self.path, 'w+', encoding=self.encoding) as f:
json.dump(self.settings, f)
def get(self, key):
with self.lock:
return self.execute(self.settings, key.split('.'), operate=self.GET)
def __getitem__(self, item):
return self.get(item)
def set(self, key, value):
with self.lock:
return self.execute(self.settings, key.split('.'), value=value, operate=self.SET)
def __setitem__(self, key, value):
return self.set(key, value)
def delete(self, key):
with self.lock:
return self.execute(self.settings, key.split('.'), operate=self.DEL)
def __delitem__(self, key):
return self.delete(key)
def execute(self, dict_, keys, value=None, operate=None):
key = keys.pop(0)
if len(keys) == 0:
if operate == self.GET:
return dict_[key]
elif operate == self.SET:
dict_[key] = value
elif operate == self.DEL:
del dict_[key]
return
if key not in dict_:
if operate == self.SET:
dict_[key] = {} # auto create sub items recursively.
else:
return
return self.execute(dict_[key], keys, value=value, operate=operate)
def ConfigureHandler(path):
if path.endswith('.json'):
return JsonConfigureClass(path)
else:
raise TypeError('file format not supported!')