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class History(object):
"""
This holds all the response and request objects for a
session. A server using this should call "clear" after
each request cycle in order to keep it from clogging
memory.
"""
size = 20
requests = []
responses = []
_instance = None
@classmethod
def instance(cls):
if not cls._instance:
cls._instance = cls()
return cls._instance
def add_response(self, response_obj):
if self.size == 0:
return
self.responses.append(response_obj)
if self.size > 0:
self.responses = self.responses[0 - self.size:]
def add_request(self, request_obj):
if self.size == 0:
return
self.requests.append(request_obj)
if self.size > 0:
self.requests = self.requests[0 - self.size:]
@property
def request(self):
if len(self.requests) == 0:
return None
else:
return self.requests[-1]
@property
def response(self):
if len(self.responses) == 0:
return None
else:
return self.responses[-1]
def clear(self):
del self.requests[:]
del self.responses[:]
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