annotate sat/memory/persistent.py @ 3696:52ee22d78e18

plugin XEP-0384: fix encryption for user own devices: our own jid is added automatically by OMEMO library, but during the generation of the stanza, our list of jids was used to get the keys (and thus our own jid and devices keys was missing). fix 402
author Goffi <goffi@goffi.org>
date Fri, 22 Oct 2021 18:46:51 +0200
parents d2b17f0f2615
children cbb988a6f507
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1 #!/usr/bin/env python3
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2
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3
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4 # SAT: a jabber client
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5 # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20 from sat.core.i18n import _
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21 from sat.core.log import getLogger
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22 log = getLogger(__name__)
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23 from twisted.python import failure
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26 class MemoryNotInitializedError(Exception):
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27 pass
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29
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30 class PersistentDict:
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31 r"""A dictionary which save persistently each value assigned
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33 /!\ be careful, each assignment means a database write
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34 /!\ Memory must be initialised before loading/setting value with instances of this class"""
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35 storage = None
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36 binary = False
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38 def __init__(self, namespace, profile=None):
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39 """
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40
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41 @param namespace: unique namespace for this dictionary
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42 @param profile(unicode, None): profile which *MUST* exists, or None for general values
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43 """
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44 if not self.storage:
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45 log.error(_("PersistentDict can't be used before memory initialisation"))
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46 raise MemoryNotInitializedError
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47 self._cache = {}
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48 self.namespace = namespace
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49 self.profile = profile
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50
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51 def _setCache(self, data):
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52 self._cache = data
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53
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54 def load(self):
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55 """Load persistent data from storage.
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56
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57 need to be called before any other operation
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58 @return: defers the PersistentDict instance itself
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59 """
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60 d = self.storage.getPrivates(self.namespace, binary=self.binary, profile=self.profile)
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61 d.addCallback(self._setCache)
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62 d.addCallback(lambda __: self)
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63 return d
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64
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65 def iteritems(self):
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66 return iter(self._cache.items())
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68 def items(self):
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69 return self._cache.items()
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71 def __repr__(self):
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72 return self._cache.__repr__()
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73
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74 def __str__(self):
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75 return self._cache.__str__()
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76
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77 def __lt__(self, other):
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78 return self._cache.__lt__(other)
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79
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80 def __le__(self, other):
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81 return self._cache.__le__(other)
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83 def __eq__(self, other):
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84 return self._cache.__eq__(other)
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85
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86 def __ne__(self, other):
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87 return self._cache.__ne__(other)
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89 def __gt__(self, other):
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90 return self._cache.__gt__(other)
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92 def __ge__(self, other):
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93 return self._cache.__ge__(other)
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95 def __cmp__(self, other):
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96 return self._cache.__cmp__(other)
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97
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98 def __hash__(self):
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99 return self._cache.__hash__()
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100
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101 def __bool__(self):
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102 return self._cache.__len__() != 0
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104 def __contains__(self, key):
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105 return self._cache.__contains__(key)
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106
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107 def __iter__(self):
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108 return self._cache.__iter__()
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109
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110 def __getitem__(self, key):
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111 return self._cache.__getitem__(key)
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113 def __setitem__(self, key, value):
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114 self.storage.setPrivateValue(self.namespace, key, value, self.binary,
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115 self.profile)
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116 return self._cache.__setitem__(key, value)
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118 def __delitem__(self, key):
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119 self.storage.delPrivateValue(self.namespace, key, self.binary, self.profile)
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120 return self._cache.__delitem__(key)
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121
2890
c652d079a9a1 core (memory/persistent): added clear method + initialise with a dict:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
122 def clear(self):
c652d079a9a1 core (memory/persistent): added clear method + initialise with a dict:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
123 """Delete all values from this namespace"""
c652d079a9a1 core (memory/persistent): added clear method + initialise with a dict:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
124 self._cache.clear()
c652d079a9a1 core (memory/persistent): added clear method + initialise with a dict:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
125 return self.storage.delPrivateNamespace(self.namespace, self.binary, self.profile)
c652d079a9a1 core (memory/persistent): added clear method + initialise with a dict:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
126
442
ab9ddf6c7eaf core: added get method to PersistentDictionary
Goffi <goffi@goffi.org>
parents: 439
diff changeset
127 def get(self, key, default=None):
ab9ddf6c7eaf core: added get method to PersistentDictionary
Goffi <goffi@goffi.org>
parents: 439
diff changeset
128 return self._cache.get(key, default)
ab9ddf6c7eaf core: added get method to PersistentDictionary
Goffi <goffi@goffi.org>
parents: 439
diff changeset
129
3225
843a9279fb5a core (memory/persistent): implemented `aset` and `adel`:
Goffi <goffi@goffi.org>
parents: 3137
diff changeset
130 def aset(self, key, value):
843a9279fb5a core (memory/persistent): implemented `aset` and `adel`:
Goffi <goffi@goffi.org>
parents: 3137
diff changeset
131 """Async set, return a Deferred fired when value is actually stored"""
843a9279fb5a core (memory/persistent): implemented `aset` and `adel`:
Goffi <goffi@goffi.org>
parents: 3137
diff changeset
132 self._cache.__setitem__(key, value)
843a9279fb5a core (memory/persistent): implemented `aset` and `adel`:
Goffi <goffi@goffi.org>
parents: 3137
diff changeset
133 return self.storage.setPrivateValue(self.namespace, key, value,
843a9279fb5a core (memory/persistent): implemented `aset` and `adel`:
Goffi <goffi@goffi.org>
parents: 3137
diff changeset
134 self.binary, self.profile)
843a9279fb5a core (memory/persistent): implemented `aset` and `adel`:
Goffi <goffi@goffi.org>
parents: 3137
diff changeset
135
843a9279fb5a core (memory/persistent): implemented `aset` and `adel`:
Goffi <goffi@goffi.org>
parents: 3137
diff changeset
136 def adel(self, key):
843a9279fb5a core (memory/persistent): implemented `aset` and `adel`:
Goffi <goffi@goffi.org>
parents: 3137
diff changeset
137 """Async del, return a Deferred fired when value is actually deleted"""
843a9279fb5a core (memory/persistent): implemented `aset` and `adel`:
Goffi <goffi@goffi.org>
parents: 3137
diff changeset
138 self._cache.__delitem__(key)
843a9279fb5a core (memory/persistent): implemented `aset` and `adel`:
Goffi <goffi@goffi.org>
parents: 3137
diff changeset
139 return self.storage.delPrivateValue(
843a9279fb5a core (memory/persistent): implemented `aset` and `adel`:
Goffi <goffi@goffi.org>
parents: 3137
diff changeset
140 self.namespace, key, self.binary, self.profile)
843a9279fb5a core (memory/persistent): implemented `aset` and `adel`:
Goffi <goffi@goffi.org>
parents: 3137
diff changeset
141
1340
91e72da1d093 core (persistent dict): added setdefault method
Goffi <goffi@goffi.org>
parents: 1292
diff changeset
142 def setdefault(self, key, default):
91e72da1d093 core (persistent dict): added setdefault method
Goffi <goffi@goffi.org>
parents: 1292
diff changeset
143 try:
91e72da1d093 core (persistent dict): added setdefault method
Goffi <goffi@goffi.org>
parents: 1292
diff changeset
144 return self._cache[key]
91e72da1d093 core (persistent dict): added setdefault method
Goffi <goffi@goffi.org>
parents: 1292
diff changeset
145 except:
91e72da1d093 core (persistent dict): added setdefault method
Goffi <goffi@goffi.org>
parents: 1292
diff changeset
146 self.__setitem__(key, default)
91e72da1d093 core (persistent dict): added setdefault method
Goffi <goffi@goffi.org>
parents: 1292
diff changeset
147 return default
91e72da1d093 core (persistent dict): added setdefault method
Goffi <goffi@goffi.org>
parents: 1292
diff changeset
148
432
31e8c48b5f5d core: - memory refactoring (moved memory.py and sqlite.py from tools to memory)
Goffi <goffi@goffi.org>
parents:
diff changeset
149 def force(self, name):
31e8c48b5f5d core: - memory refactoring (moved memory.py and sqlite.py from tools to memory)
Goffi <goffi@goffi.org>
parents:
diff changeset
150 """Force saving of an attribute to storage
2182
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
151
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
152 @return: deferred fired when data is actually saved
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
153 """
2890
c652d079a9a1 core (memory/persistent): added clear method + initialise with a dict:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
154 return self.storage.setPrivateValue(self.namespace, name, self._cache[name],
c652d079a9a1 core (memory/persistent): added clear method + initialise with a dict:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
155 self.binary, self.profile)
432
31e8c48b5f5d core: - memory refactoring (moved memory.py and sqlite.py from tools to memory)
Goffi <goffi@goffi.org>
parents:
diff changeset
156
31e8c48b5f5d core: - memory refactoring (moved memory.py and sqlite.py from tools to memory)
Goffi <goffi@goffi.org>
parents:
diff changeset
157
31e8c48b5f5d core: - memory refactoring (moved memory.py and sqlite.py from tools to memory)
Goffi <goffi@goffi.org>
parents:
diff changeset
158 class PersistentBinaryDict(PersistentDict):
31e8c48b5f5d core: - memory refactoring (moved memory.py and sqlite.py from tools to memory)
Goffi <goffi@goffi.org>
parents:
diff changeset
159 """Persistent dict where value can be any python data (instead of string only)"""
2182
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
160 binary = True
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
161
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
162
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
163 class LazyPersistentBinaryDict(PersistentBinaryDict):
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2890
diff changeset
164 r"""PersistentBinaryDict which get key/value when needed
2182
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
165
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
166 This Persistent need more database access, it is suitable for largest data,
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
167 to save memory.
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
168 /!\ most of methods return a Deferred
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
169 """
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
170 # TODO: missing methods should be implemented using database access
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
171 # TODO: a cache would be useful (which is deleted after a timeout)
587
952322b1d490 Remove trailing whitespaces.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 585
diff changeset
172
432
31e8c48b5f5d core: - memory refactoring (moved memory.py and sqlite.py from tools to memory)
Goffi <goffi@goffi.org>
parents:
diff changeset
173 def load(self):
2182
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
174 # we show a warning as calling load on LazyPersistentBinaryDict sounds like a code mistake
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2890
diff changeset
175 log.warning(_("Calling load on LazyPersistentBinaryDict while it's not needed"))
2182
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
176
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
177 def iteritems(self):
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
178 raise NotImplementedError
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
179
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
180 def items(self):
3253
1af840e84af7 core (memory/persistent): fixed "items", added "all" + "adel" to LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 3234
diff changeset
181 d = self.storage.getPrivates(self.namespace, binary=self.binary, profile=self.profile)
1af840e84af7 core (memory/persistent): fixed "items", added "all" + "adel" to LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 3234
diff changeset
182 d.addCallback(lambda data_dict: data_dict.items())
1af840e84af7 core (memory/persistent): fixed "items", added "all" + "adel" to LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 3234
diff changeset
183 return d
1af840e84af7 core (memory/persistent): fixed "items", added "all" + "adel" to LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 3234
diff changeset
184
1af840e84af7 core (memory/persistent): fixed "items", added "all" + "adel" to LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 3234
diff changeset
185 def all(self):
2182
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
186 return self.storage.getPrivates(self.namespace, binary=self.binary, profile=self.profile)
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
187
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
188 def __repr__(self):
3653
d2b17f0f2615 core (memory/persistent): implement `__repr__` (via `__str__`)
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
189 return self.__str__()
2182
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
190
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
191 def __str__(self):
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
192 return "LazyPersistentBinaryDict (namespace: {})".format(self.namespace)
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
193
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
194 def __lt__(self, other):
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
195 raise NotImplementedError
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
196
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
197 def __le__(self, other):
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
198 raise NotImplementedError
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
199
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
200 def __eq__(self, other):
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
201 raise NotImplementedError
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
202
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
203 def __ne__(self, other):
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
204 raise NotImplementedError
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
205
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
206 def __gt__(self, other):
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
207 raise NotImplementedError
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
208
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
209 def __ge__(self, other):
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
210 raise NotImplementedError
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
211
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
212 def __cmp__(self, other):
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
213 raise NotImplementedError
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
214
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
215 def __hash__(self):
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2890
diff changeset
216 return hash(str(self.__class__) + self.namespace + (self.profile or ''))
2182
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
217
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2890
diff changeset
218 def __bool__(self):
2182
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
219 raise NotImplementedError
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
220
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
221 def __contains__(self, key):
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
222 raise NotImplementedError
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
223
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
224 def __iter__(self):
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
225 raise NotImplementedError
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
226
2644
e107089d6640 core (memory/persistent): better default value handling in LazyPersistentBinaryDict (don't jump to debugger in debug mode if value is not found)
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
227 def _data2value(self, data, key):
e107089d6640 core (memory/persistent): better default value handling in LazyPersistentBinaryDict (don't jump to debugger in debug mode if value is not found)
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
228 try:
e107089d6640 core (memory/persistent): better default value handling in LazyPersistentBinaryDict (don't jump to debugger in debug mode if value is not found)
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
229 return data[key]
e107089d6640 core (memory/persistent): better default value handling in LazyPersistentBinaryDict (don't jump to debugger in debug mode if value is not found)
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
230 except KeyError as e:
e107089d6640 core (memory/persistent): better default value handling in LazyPersistentBinaryDict (don't jump to debugger in debug mode if value is not found)
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
231 # we return a Failure here to avoid the jump
e107089d6640 core (memory/persistent): better default value handling in LazyPersistentBinaryDict (don't jump to debugger in debug mode if value is not found)
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
232 # into debugger in debug mode.
e107089d6640 core (memory/persistent): better default value handling in LazyPersistentBinaryDict (don't jump to debugger in debug mode if value is not found)
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
233 raise failure.Failure(e)
e107089d6640 core (memory/persistent): better default value handling in LazyPersistentBinaryDict (don't jump to debugger in debug mode if value is not found)
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
234
2182
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
235 def __getitem__(self, key):
087eec4c6c07 memory (persistent, sqlite): better private values handling + new LazyPersistentBinaryDict:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
236 """get the value as a Deferred"""
2644
e107089d6640 core (memory/persistent): better default value handling in LazyPersistentBinaryDict (don't jump to debugger in debug mode if value is not found)
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
237 d = self.storage.getPrivates(self.namespace, keys=[key], binary=self.binary,
e107089d6640 core (memory/persistent): better default value handling in LazyPersistentBinaryDict (don't jump to debugger in debug mode if value is not found)
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
238 profile=self.profile)
e107089d6640 core (memory/persistent): better default value handling in LazyPersistentBinaryDict (don't jump to debugger in debug mode if value is not found)
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
239 d.addCallback(self._data2value, key)
2209
ea41cf1e6d29 memory (persistent, sqlite): fixed getPrivates bug with keys arguments and its use in LazyPersistentBinaryDict
Goffi <goffi@goffi.org>
parents: 2182
diff changeset
240 return d
432
31e8c48b5f5d core: - memory refactoring (moved memory.py and sqlite.py from tools to memory)
Goffi <goffi@goffi.org>
parents:
diff changeset
241
31e8c48b5f5d core: - memory refactoring (moved memory.py and sqlite.py from tools to memory)
Goffi <goffi@goffi.org>
parents:
diff changeset
242 def __setitem__(self, key, value):
2644
e107089d6640 core (memory/persistent): better default value handling in LazyPersistentBinaryDict (don't jump to debugger in debug mode if value is not found)
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
243 self.storage.setPrivateValue(self.namespace, key, value, self.binary,
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244 self.profile)
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245
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246 def __delitem__(self, key):
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247 self.storage.delPrivateValue(self.namespace, key, self.binary, self.profile)
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248
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249 def _defaultOrException(self, failure_, default):
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250 failure_.trap(KeyError)
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251 return default
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252
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253 def get(self, key, default=None):
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254 d = self.__getitem__(key)
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255 d.addErrback(self._defaultOrException, default=default)
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256 return d
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257
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258 def aset(self, key, value):
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259 """Async set, return a Deferred fired when value is actually stored"""
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260 # FIXME: redundant with force, force must be removed
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261 # XXX: similar as PersistentDict.aset, but doesn't use cache
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262 return self.storage.setPrivateValue(self.namespace, key, value,
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263 self.binary, self.profile)
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264
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265 def adel(self, key):
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266 """Async del, return a Deferred fired when value is actually deleted"""
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267 # XXX: similar as PersistentDict.adel, but doesn't use cache
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268 return self.storage.delPrivateValue(
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269 self.namespace, key, self.binary, self.profile)
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270
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271 def setdefault(self, key, default):
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272 raise NotImplementedError
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273
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274 def force(self, name, value):
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275 """Force saving of an attribute to storage
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276
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277 @param value(object): value is needed for LazyPersistentBinaryDict
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278 @return: deferred fired when data is actually saved
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279 """
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280 return self.storage.setPrivateValue(self.namespace, name, value, self.binary, self.profile)
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281
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282 def remove(self, key):
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283 """Delete a key from sotrage, and return a deferred called when it's done
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284
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285 @param key(unicode): key to delete
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286 @return (D): A deferred fired when delete is done
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287 """
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288 return self.storage.delPrivateValue(self.namespace, key, self.binary, self.profile)