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# Copyright 2018 ke liang <lokyse@163.com>.
#
# 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
MARKER_TAG = "marker"
class Marker(object):
__metaclass__ = abc.ABCMeta
@abc.abstractmethod
def getName(self):
raise NotImplementedError()
@abc.abstractmethod
def contains(self, item=None):
raise NotImplementedError()
@abc.abstractmethod
def addChild(self, item):
raise NotImplementedError()
@abc.abstractmethod
def removeChild(self, item):
raise NotImplementedError()
@abc.abstractmethod
def __eq__(self, other):
raise NotImplementedError()
@abc.abstractmethod
def __hash__(self):
raise NotImplementedError()
@abc.abstractmethod
def __iter__(self):
raise NotImplementedError()
class BaseMarker(Marker):
def __init__(self, name):
super(BaseMarker, self).__init__()
if not isinstance(name, str):
raise TypeError("not str type")
if name == "":
raise ValueError("empty value")
self.__name = name
self.__childs = []
def getName(self):
return self.__name
def __iter__(self):
return iter(self.__childs)
def __eq__(self, other):
if not isinstance(other, Marker):
return False
if id(self) == id(other):
return True
return self.__name == other.getName()
def __hash__(self):
return hash(self.__name)
def contains(self, item=None):
if isinstance(item, Marker):
if item == self:
return True
return len(list(filter(
lambda x: x == item, self.__childs))) > 0
elif isinstance(item, str):
if item == self.__name:
return True
return len(list(filter(
lambda x: x.__name == item, self.__childs))) > 0
return False
def addChild(self, item):
if not isinstance(item, Marker):
raise TypeError("can only add (not %s) marker type"
% type(item))
if self == item:
return
if item not in self.__childs:
self.__childs.append(item)
def addChilds(self, childs):
try:
iter(childs)
except Exception as e:
raise e
for item in childs:
self.addChild(item)
def removeChild(self, item):
if not isinstance(item, Marker):
raise TypeError("can only add (not %s) marker type"
% type(item))
if item in self.__childs:
self.__childs.remove(item)
def matchMarkerHelp(record, markerToMatch):
marker = getattr(record, MARKER_TAG, None)
if marker is None or markerToMatch is None:
return False
if not isinstance(marker, Marker):
return False
try:
if isinstance(markerToMatch, list):
return len(list(filter(
lambda x: marker.contains(x), markerToMatch))) > 0
return marker.contains(markerToMatch)
except Exception as e:
raise e
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