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comparison src/memory/memory.py @ 1215:d9c399ec5dd9

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memory: session timeout won't be reset on each access if the Sessions() is called with resettable_timeout=False
author souliane <souliane@mailoo.org>
date Mon, 22 Sep 2014 19:24:07 +0200
parents ed3b01ed70d7
children 5e5661ab5c81
comparison
equal deleted inserted replaced
1214:ed3b01ed70d7 1215:d9c399ec5dd9
38 38
39 class Sessions(object): 39 class Sessions(object):
40 """Sessions are data associated to key used for a temporary moment, with optional profile checking.""" 40 """Sessions are data associated to key used for a temporary moment, with optional profile checking."""
41 DEFAULT_TIMEOUT = 600 41 DEFAULT_TIMEOUT = 600
42 42
43 def __init__(self, timeout=None): 43 def __init__(self, timeout=None, resettable_timeout=True):
44 """ 44 """
45 @param timeout: nb of seconds before session destruction 45 @param timeout (int): nb of seconds before session destruction
46 @param resettable_timeout (bool): if True, the timeout is reset on each access
46 """ 47 """
47 self._sessions = dict() 48 self._sessions = dict()
48 self.timeout = timeout or Sessions.DEFAULT_TIMEOUT 49 self.timeout = timeout or Sessions.DEFAULT_TIMEOUT
50 self.resettable_timeout = resettable_timeout
49 51
50 def newSession(self, session_data=None, session_id=None, profile=None): 52 def newSession(self, session_data=None, session_id=None, profile=None):
51 """ Create a new session 53 """ Create a new session
52 @param session_data: mutable data to use, default to a dict 54 @param session_data: mutable data to use, default to a dict
53 @param session_id (str): force the session_id to the given string 55 @param session_id (str): force the session_id to the given string
81 timer, session_data, profile_set = self._sessions[session_id] 83 timer, session_data, profile_set = self._sessions[session_id]
82 except ValueError: 84 except ValueError:
83 raise exceptions.InternalError("You need to use __getitem__ when profile is not set") 85 raise exceptions.InternalError("You need to use __getitem__ when profile is not set")
84 if profile_set != profile: 86 if profile_set != profile:
85 raise exceptions.InternalError("current profile differ from set profile !") 87 raise exceptions.InternalError("current profile differ from set profile !")
86 timer.reset(self.timeout) 88 if self.resettable_timeout:
89 timer.reset(self.timeout)
87 return session_data 90 return session_data
88 91
89 def __getitem__(self, session_id): 92 def __getitem__(self, session_id):
90 try: 93 try:
91 timer, session_data = self._sessions[session_id] 94 timer, session_data = self._sessions[session_id]
92 except ValueError: 95 except ValueError:
93 raise exceptions.InternalError("You need to use profileGet instead of __getitem__ when profile is set") 96 raise exceptions.InternalError("You need to use profileGet instead of __getitem__ when profile is set")
94 timer.reset(self.timeout) 97 if self.resettable_timeout:
98 timer.reset(self.timeout)
95 return session_data 99 return session_data
96 100
97 def __setitem__(self, key, value): 101 def __setitem__(self, key, value):
98 raise NotImplementedError("You need do use newSession to create a session") 102 raise NotImplementedError("You need do use newSession to create a session")
99 103
144 - raise an error if more than one session are found 148 - raise an error if more than one session are found
145 """ 149 """
146 ids = self._profileGetAllIds(profile) 150 ids = self._profileGetAllIds(profile)
147 if len(ids) > 1: 151 if len(ids) > 1:
148 raise exceptions.InternalError('profileGetUnique has been used but more than one session has been found!') 152 raise exceptions.InternalError('profileGetUnique has been used but more than one session has been found!')
149 return self.profileGet(ids[0], profile) if len(ids) == 1 else None 153 return self.profileGet(ids[0], profile) if len(ids) == 1 else None # XXX: timeout might be reset
150 154
151 155
152 def profileDelUnique(self, profile): 156 def profileDelUnique(self, profile):
153 """Delete the unique session that is associated to the given profile. 157 """Delete the unique session that is associated to the given profile.
154 158