merge from val_prop_plugin branch

test/test_cache.py

@@ -20,13 +20,13 @@ def test_cache():
     values = c.cfgimpl_get_values()
     settings = c.cfgimpl_get_settings()
     c.u1
-    assert od1.u1 in values._cache
+    assert od1.u1 in values._p_.get_cached('value', c)
-    assert od1.u1 in settings._cache
+    assert od1.u1 in settings._p_.get_cached('property', c)
     c.u2
-    assert od1.u1 in values._cache
+    assert od1.u1 in values._p_.get_cached('value', c)
-    assert od1.u1 in settings._cache
+    assert od1.u1 in settings._p_.get_cached('property', c)
-    assert od1.u2 in values._cache
+    assert od1.u2 in values._p_.get_cached('value', c)
-    assert od1.u2 in settings._cache
+    assert od1.u2 in settings._p_.get_cached('property', c)
 
 
 def test_cache_reset():
@@ -36,44 +36,44 @@ def test_cache_reset():
     settings = c.cfgimpl_get_settings()
     #when change a value
     c.u1
-    assert od1.u1 in values._cache
+    assert od1.u1 in values._p_.get_cached('value', c)
-    assert od1.u1 in settings._cache
+    assert od1.u1 in settings._p_.get_cached('property', c)
     c.u2 = 1
-    assert od1.u1 not in values._cache
+    assert od1.u1 not in values._p_.get_cached('value', c)
-    assert od1.u1 not in settings._cache
+    assert od1.u1 not in settings._p_.get_cached('property', c)
     #when remove a value
     c.u1
-    assert od1.u1 in values._cache
+    assert od1.u1 in values._p_.get_cached('value', c)
-    assert od1.u1 in settings._cache
+    assert od1.u1 in settings._p_.get_cached('property', c)
     del(c.u2)
-    assert od1.u1 not in values._cache
+    assert od1.u1 not in values._p_.get_cached('value', c)
-    assert od1.u1 not in settings._cache
+    assert od1.u1 not in settings._p_.get_cached('property', c)
     #when add/del property
     c.u1
-    assert od1.u1 in values._cache
+    assert od1.u1 in values._p_.get_cached('value', c)
-    assert od1.u1 in settings._cache
+    assert od1.u1 in settings._p_.get_cached('property', c)
     c.cfgimpl_get_settings()[od1.u2].append('test')
-    assert od1.u1 not in values._cache
+    assert od1.u1 not in values._p_.get_cached('value', c)
-    assert od1.u1 not in settings._cache
+    assert od1.u1 not in settings._p_.get_cached('property', c)
     c.u1
-    assert od1.u1 in values._cache
+    assert od1.u1 in values._p_.get_cached('value', c)
-    assert od1.u1 in settings._cache
+    assert od1.u1 in settings._p_.get_cached('property', c)
     c.cfgimpl_get_settings()[od1.u2].remove('test')
-    assert od1.u1 not in values._cache
+    assert od1.u1 not in values._p_.get_cached('value', c)
-    assert od1.u1 not in settings._cache
+    assert od1.u1 not in settings._p_.get_cached('property', c)
     #when enable/disabled property
     c.u1
-    assert od1.u1 in values._cache
+    assert od1.u1 in values._p_.get_cached('value', c)
-    assert od1.u1 in settings._cache
+    assert od1.u1 in settings._p_.get_cached('property', c)
     c.cfgimpl_get_settings().append('test')
-    assert od1.u1 not in values._cache
+    assert od1.u1 not in values._p_.get_cached('value', c)
-    assert od1.u1 not in settings._cache
+    assert od1.u1 not in settings._p_.get_cached('property', c)
     c.u1
-    assert od1.u1 in values._cache
+    assert od1.u1 in values._p_.get_cached('value', c)
-    assert od1.u1 in settings._cache
+    assert od1.u1 in settings._p_.get_cached('property', c)
     c.cfgimpl_get_settings().remove('test')
-    assert od1.u1 not in values._cache
+    assert od1.u1 not in values._p_.get_cached('value', c)
-    assert od1.u1 not in settings._cache
+    assert od1.u1 not in settings._p_.get_cached('property', c)
 
 
 def test_cache_reset_multi():
@@ -83,32 +83,32 @@ def test_cache_reset_multi():
     settings = c.cfgimpl_get_settings()
     #when change a value
     c.u1
-    assert od1.u1 in values._cache
+    assert od1.u1 in values._p_.get_cached('value', c)
-    assert od1.u1 in settings._cache
+    assert od1.u1 in settings._p_.get_cached('property', c)
     c.u3 = [1]
-    assert od1.u1 not in values._cache
+    assert od1.u1 not in values._p_.get_cached('value', c)
-    assert od1.u1 not in settings._cache
+    assert od1.u1 not in settings._p_.get_cached('property', c)
     #when append value
     c.u1
-    assert od1.u1 in values._cache
+    assert od1.u1 in values._p_.get_cached('value', c)
-    assert od1.u1 in settings._cache
+    assert od1.u1 in settings._p_.get_cached('property', c)
     c.u3.append(1)
-    assert od1.u1 not in values._cache
+    assert od1.u1 not in values._p_.get_cached('value', c)
-    assert od1.u1 not in settings._cache
+    assert od1.u1 not in settings._p_.get_cached('property', c)
     #when pop value
     c.u1
-    assert od1.u1 in values._cache
+    assert od1.u1 in values._p_.get_cached('value', c)
-    assert od1.u1 in settings._cache
+    assert od1.u1 in settings._p_.get_cached('property', c)
     c.u3.pop(1)
-    assert od1.u1 not in values._cache
+    assert od1.u1 not in values._p_.get_cached('value', c)
-    assert od1.u1 not in settings._cache
+    assert od1.u1 not in settings._p_.get_cached('property', c)
     #when remove a value
     c.u1
-    assert od1.u1 in values._cache
+    assert od1.u1 in values._p_.get_cached('value', c)
-    assert od1.u1 in settings._cache
+    assert od1.u1 in settings._p_.get_cached('property', c)
     del(c.u3)
-    assert od1.u1 not in values._cache
+    assert od1.u1 not in values._p_.get_cached('value', c)
-    assert od1.u1 not in settings._cache
+    assert od1.u1 not in settings._p_.get_cached('property', c)
 
 
 def test_reset_cache():
@@ -117,23 +117,23 @@ def test_reset_cache():
     values = c.cfgimpl_get_values()
     settings = c.cfgimpl_get_settings()
     c.u1
-    assert od1.u1 in values._cache
+    assert od1.u1 in values._p_.get_cached('value', c)
-    assert od1.u1 in settings._cache
+    assert od1.u1 in settings._p_.get_cached('property', c)
     c.cfgimpl_reset_cache()
-    assert od1.u1 not in values._cache
+    assert od1.u1 not in values._p_.get_cached('value', c)
-    assert od1.u1 not in settings._cache
+    assert od1.u1 not in settings._p_.get_cached('property', c)
     c.u1
     sleep(1)
     c.u2
-    assert od1.u1 in values._cache
+    assert od1.u1 in values._p_.get_cached('value', c)
-    assert od1.u1 in settings._cache
+    assert od1.u1 in settings._p_.get_cached('property', c)
-    assert od1.u2 in values._cache
+    assert od1.u2 in values._p_.get_cached('value', c)
-    assert od1.u2 in settings._cache
+    assert od1.u2 in settings._p_.get_cached('property', c)
     c.cfgimpl_reset_cache()
-    assert od1.u1 not in values._cache
+    assert od1.u1 not in values._p_.get_cached('value', c)
-    assert od1.u1 not in settings._cache
+    assert od1.u1 not in settings._p_.get_cached('property', c)
-    assert od1.u2 not in values._cache
+    assert od1.u2 not in values._p_.get_cached('value', c)
-    assert od1.u2 not in settings._cache
+    assert od1.u2 not in settings._p_.get_cached('property', c)
 
 
 def test_reset_cache_only_expired():
@@ -142,22 +142,22 @@ def test_reset_cache_only_expired():
     values = c.cfgimpl_get_values()
     settings = c.cfgimpl_get_settings()
     c.u1
-    assert od1.u1 in values._cache
+    assert od1.u1 in values._p_.get_cached('value', c)
-    assert od1.u1 in settings._cache
+    assert od1.u1 in settings._p_.get_cached('property', c)
     c.cfgimpl_reset_cache(True)
-    assert od1.u1 in values._cache
+    assert od1.u1 in values._p_.get_cached('value', c)
-    assert od1.u1 in settings._cache
+    assert od1.u1 in settings._p_.get_cached('property', c)
     sleep(1)
     c.u2
-    assert od1.u1 in values._cache
+    assert od1.u1 in values._p_.get_cached('value', c)
-    assert od1.u1 in settings._cache
+    assert od1.u1 in settings._p_.get_cached('property', c)
-    assert od1.u2 in values._cache
+    assert od1.u2 in values._p_.get_cached('value', c)
-    assert od1.u2 in settings._cache
+    assert od1.u2 in settings._p_.get_cached('property', c)
     c.cfgimpl_reset_cache(True)
-    assert od1.u1 not in values._cache
+    assert od1.u1 not in values._p_.get_cached('value', c)
-    assert od1.u1 not in settings._cache
+    assert od1.u1 not in settings._p_.get_cached('property', c)
-    assert od1.u2 in values._cache
+    assert od1.u2 in values._p_.get_cached('value', c)
-    assert od1.u2 in settings._cache
+    assert od1.u2 in settings._p_.get_cached('property', c)
 
 
 def test_reset_cache_only():
@@ -166,14 +166,14 @@ def test_reset_cache_only():
     values = c.cfgimpl_get_values()
     settings = c.cfgimpl_get_settings()
     c.u1
-    assert od1.u1 in values._cache
+    assert od1.u1 in values._p_.get_cached('value', c)
-    assert od1.u1 in settings._cache
+    assert od1.u1 in settings._p_.get_cached('property', c)
     c.cfgimpl_reset_cache(only=('values',))
-    assert od1.u1 not in values._cache
+    assert od1.u1 not in values._p_.get_cached('value', c)
-    assert od1.u1 in settings._cache
+    assert od1.u1 in settings._p_.get_cached('property', c)
     c.u1
-    assert od1.u1 in values._cache
+    assert od1.u1 in values._p_.get_cached('value', c)
-    assert od1.u1 in settings._cache
+    assert od1.u1 in settings._p_.get_cached('property', c)
     c.cfgimpl_reset_cache(only=('settings',))
-    assert od1.u1 in values._cache
+    assert od1.u1 in values._p_.get_cached('value', c)
-    assert od1.u1 not in settings._cache
+    assert od1.u1 not in settings._p_.get_cached('property', c)

test/test_option_setting.py

@@ -327,23 +327,23 @@ def test_reset_properties():
     cfg = Config(descr)
     setting = cfg.cfgimpl_get_settings()
     option = cfg.cfgimpl_get_description().gc.dummy
-    assert setting._properties == {}
+    assert setting._p_.get_properties(cfg) == {}
     setting.append('frozen')
-    assert setting._properties == {None: set(('frozen', 'expire', 'validator'))}
+    assert setting._p_.get_properties(cfg) == {None: set(('frozen', 'expire', 'validator'))}
     setting.reset()
-    assert setting._properties == {}
+    assert setting._p_.get_properties(cfg) == {}
     setting[option].append('test')
-    assert setting._properties == {option: set(('test',))}
+    assert setting._p_.get_properties(cfg) == {option: set(('test',))}
     setting.reset()
-    assert setting._properties == {option: set(('test',))}
+    assert setting._p_.get_properties(cfg) == {option: set(('test',))}
     setting.append('frozen')
-    assert setting._properties == {None: set(('frozen', 'expire', 'validator')), option: set(('test',))}
+    assert setting._p_.get_properties(cfg) == {None: set(('frozen', 'expire', 'validator')), option: set(('test',))}
     setting.reset(option)
-    assert setting._properties == {None: set(('frozen', 'expire', 'validator'))}
+    assert setting._p_.get_properties(cfg) == {None: set(('frozen', 'expire', 'validator'))}
     setting[option].append('test')
-    assert setting._properties == {None: set(('frozen', 'expire', 'validator')), option: set(('test',))}
+    assert setting._p_.get_properties(cfg) == {None: set(('frozen', 'expire', 'validator')), option: set(('test',))}
     setting.reset(all_properties=True)
-    assert setting._properties == {}
+    assert setting._p_.get_properties(cfg) == {}
     raises(ValueError, 'setting.reset(all_properties=True, opt=option)')
 
 

tiramisu/config.py

@@ -20,10 +20,11 @@
 # the rough pypy's guys: http://codespeak.net/svn/pypy/dist/pypy/config/
 # the whole pypy projet is under MIT licence
 # ____________________________________________________________
+from time import time
 from tiramisu.error import PropertiesOptionError, ConfigError
 from tiramisu.option import OptionDescription, Option, SymLinkOption, \
     BaseInformation
-from tiramisu.setting import groups, Setting, default_encoding
+from tiramisu.setting import groups, Settings, default_encoding, default_storage
 from tiramisu.value import Values
 from tiramisu.i18n import _
 
@@ -524,8 +525,9 @@ class Config(CommonConfig):
         :param context: the current root config
         :type context: `Config`
         """
-        self._impl_settings = Setting(self)
+        config_id = str(id(self)) + str(time())
-        self._impl_values = Values(self)
+        self._impl_settings = Settings(self, config_id, default_storage)
+        self._impl_values = Values(self, config_id, default_storage)
         super(Config, self).__init__(descr, self)
         self._impl_build_all_paths()
         self._impl_meta = None
@@ -562,9 +564,10 @@ class MetaConfig(CommonConfig):
                     raise ValueError(_("child has already a metaconfig's"))
                 child._impl_meta = self
 
+        config_id = str(id(self))
         self._impl_children = children
-        self._impl_settings = Setting(self)
+        self._impl_settings = Settings(self, config_id, default_storage)
-        self._impl_values = Values(self)
+        self._impl_values = Values(self, config_id, default_storage)
         self._impl_meta = None
         self._impl_informations = {}
 

tiramisu/option.py

@@ -59,7 +59,7 @@ class BaseInformation(object):
 
     def impl_set_information(self, key, value):
         """updates the information's attribute
-        (wich is a dictionnary)
+        (which is a dictionary)
 
         :param key: information's key (ex: "help", "doc"
         :param value: information's value (ex: "the help string")
@@ -459,7 +459,8 @@ class StrOption(Option):
 
     def _validate(self, value):
         if not isinstance(value, str):
-            raise ValueError(_('value must be a string'))
+            raise ValueError(_('value must be a string, not '
+                               '{0}').format(type(value)))
 
 
 class UnicodeOption(Option):

tiramisu/plugins/dictionary/cache.py

@@ -0,0 +1,55 @@
+# -*- coding: utf-8 -*-
+"default plugin for cache: set it in a simple dictionary"
+# Copyright (C) 2013 Team tiramisu (see AUTHORS for all contributors)
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# ____________________________________________________________
+
+
+class Cache(object):
+    __slots__ = ('_cache',)
+    key_is_path = False
+
+    def __init__(self):
+        self._cache = {}
+
+    def setcache(self, cache_type, opt, val, time):
+        self._cache[opt] = (val, time)
+
+    def getcache(self, cache_type, opt, exp):
+        value, created = self._cache[opt]
+        if exp < created:
+            return True, value
+        return False, None
+
+    def hascache(self, cache_type, opt):
+        return opt in self._cache
+
+    def reset_expired_cache(self, cache_type, exp):
+        keys = self._cache.keys()
+        for key in keys:
+            val, created = self._cache[key]
+            if exp > created:
+                del(self._cache[key])
+
+    def reset_all_cache(self, cache_type):
+        self._cache.clear()
+
+    def get_cached(self, cache_type, context):
+        """return all values in a dictionary
+        example: {option1: ('value1', 'time1'), option2: ('value2', 'time2')}
+        """
+        return self._cache

tiramisu/plugins/dictionary/setting.py

@@ -0,0 +1,61 @@
+# -*- coding: utf-8 -*-
+"default plugin for setting: set it in a simple dictionary"
+# Copyright (C) 2013 Team tiramisu (see AUTHORS for all contributors)
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# ____________________________________________________________
+from tiramisu.plugins.dictionary.cache import Cache
+
+
+class Settings(Cache):
+    __slots__ = ('_properties', '_permissives')
+
+    def __init__(self, config_id):
+        # properties attribute: the name of a property enables this property
+        # key is None for global properties
+        self._properties = {}
+        # permissive properties
+        self._permissives = {}
+        super(Settings, self).__init__()
+
+    # propertives
+    def setproperties(self, opt, properties):
+        self._properties[opt] = properties
+
+    def getproperties(self, opt, default_properties):
+        return self._properties.get(opt, set(default_properties))
+
+    def hasproperties(self, opt):
+        return opt in self._properties
+
+    def reset_all_propertives(self):
+        self._properties.clear()
+
+    def reset_properties(self, opt):
+        try:
+            del(self._properties[opt])
+        except KeyError:
+            pass
+
+    def get_properties(self, context):
+        return self._properties
+
+    # permissive
+    def setpermissive(self, opt, permissive):
+        self._permissives[opt] = frozenset(permissive)
+
+    def getpermissive(self, opt=None):
+        return self._permissives.get(opt, frozenset())

tiramisu/plugins/dictionary/value.py

@@ -0,0 +1,75 @@
+# -*- coding: utf-8 -*-
+"default plugin for value: set it in a simple dictionary"
+# Copyright (C) 2013 Team tiramisu (see AUTHORS for all contributors)
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# ____________________________________________________________
+
+#FIXME
+from tiramisu.plugins.dictionary.cache import Cache
+
+
+class Values(Cache):
+    __slots__ = ('_values',)
+
+    def __init__(self, config_id):
+        """init plugin means create values storage
+        """
+        self._values = {}
+        # should init cache too
+        super(Values, self).__init__()
+
+    # value
+    def setvalue(self, opt, value, owner):
+        """set value for an option
+        a specified value must be associated to an owner
+        """
+        self._values[opt] = (owner, value)
+
+    def getvalue(self, opt):
+        """get value for an option
+        return: only value, not the owner
+        """
+        return self._values[opt][1]
+
+    def hasvalue(self, opt):
+        """if opt has a value
+        return: boolean
+        """
+        return opt in self._values
+
+    def resetvalue(self, opt):
+        """remove value means delete value in storage
+        """
+        del(self._values[opt])
+
+    def get_modified_values(self):
+        """return all values in a dictionary
+        example: {option1: (owner, 'value1'), option2: (owner, 'value2')}
+        """
+        return self._values
+
+    # owner
+    def setowner(self, opt, owner):
+        """change owner for an option
+        """
+        self._values[opt] = (owner, self._values[opt][1])
+
+    def getowner(self, opt, default):
+        """get owner for an option
+        return: owner object
+        """
+        return self._values.get(opt, (default, None))[0]

tiramisu/plugins/sqlite3/cache.py

@@ -0,0 +1,82 @@
+# -*- coding: utf-8 -*-
+"default plugin for cache: set it in a simple dictionary"
+# Copyright (C) 2013 Team tiramisu (see AUTHORS for all contributors)
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# ____________________________________________________________
+
+from pickle import dumps, loads
+import sqlite3
+
+
+class Cache(object):
+    __slots__ = ('_conn', '_cursor')
+    key_is_path = True
+
+    def __init__(self, config_id, cache_type):
+        cache_table = 'CREATE TABLE IF NOT EXISTS cache_{0}(path text primary key, value text, time real)'.format(cache_type)
+        self._conn = sqlite3.connect(config_id + '.db')
+        self._conn.text_factory = str
+        self._cursor = self._conn.cursor()
+        self._cursor.execute(cache_table)
+
+    # value
+    def _sqlite_decode(self, value):
+        return loads(value)
+
+    def _sqlite_encode(self, value):
+        if isinstance(value, list):
+            value = list(value)
+        return dumps(value)
+
+    def setcache(self, cache_type, path, val, time):
+        convert_value = self._sqlite_encode(val)
+        self._cursor.execute("DELETE FROM cache_{0} WHERE path = ?".format(cache_type), (path,))
+        self._cursor.execute("INSERT INTO cache_{0}(path, value, time) VALUES (?, ?, ?)".format(cache_type),
+                             (path, convert_value, time))
+        self._conn.commit()
+
+    def getcache(self, cache_type, path, exp):
+        self._cursor.execute("SELECT value FROM cache_{0} WHERE path = ? AND time >= ?".format(cache_type), (path, exp))
+        cached = self._cursor.fetchone()
+        if cached is None:
+            return False, None
+        else:
+            return True, self._sqlite_decode(cached[0])
+
+    def hascache(self, cache_type, path):
+        self._cursor.execute("SELECT value FROM cache_{0} WHERE path = ?".format(cache_type), (path,))
+        return self._cursor.fetchone() is not None
+
+    def reset_expired_cache(self, cache_type, exp):
+        self._cursor.execute("DELETE FROM cache_{0} WHERE time < ?".format(cache_type), (exp,))
+        self._conn.commit()
+
+    def reset_all_cache(self, cache_type):
+        self._cursor.execute("DELETE FROM cache_{0}".format(cache_type))
+        self._conn.commit()
+
+    def get_cached(self, cache_type, context):
+        """return all values in a dictionary
+        example: {option1: ('value1', 'time1'), option2: ('value2', 'time2')}
+        """
+        self._cursor.execute("SELECT * FROM cache_{0}".format(cache_type))
+        ret = {}
+        for path, value, time in self._cursor.fetchall():
+            opt = context.cfgimpl_get_description().impl_get_opt_by_path(path)
+            value = self._sqlite_decode(value)
+            ret[opt] = (value, time)
+        return ret

tiramisu/plugins/sqlite3/setting.py

@@ -0,0 +1,88 @@
+# -*- coding: utf-8 -*-
+"default plugin for setting: set it in a simple dictionary"
+# Copyright (C) 2013 Team tiramisu (see AUTHORS for all contributors)
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# ____________________________________________________________
+from tiramisu.plugins.sqlite3.cache import Cache
+
+
+class Settings(Cache):
+    __slots__ = tuple()
+
+    def __init__(self, config_id):
+        settings_table = 'CREATE TABLE IF NOT EXISTS property(path text primary key, properties text)'
+        permissives_table = 'CREATE TABLE IF NOT EXISTS permissive(path text primary key, permissives text)'
+        # should init cache too
+        super(Settings, self).__init__(config_id, 'property')
+        self._cursor.execute(settings_table)
+        self._cursor.execute(permissives_table)
+        self._conn.commit()
+
+    # propertives
+    def setproperties(self, path, properties):
+        self._cursor.execute("DELETE FROM property WHERE path = ?", (path,))
+        self._cursor.execute("INSERT INTO property(path, properties) VALUES (?, ?)",
+                             (path, self._sqlite_encode(properties)))
+        self._conn.commit()
+
+    def getproperties(self, path, default_properties):
+        self._cursor.execute("SELECT properties FROM property WHERE path = ?", (path,))
+        value = self._cursor.fetchone()
+        if value is None:
+            return set(default_properties)
+        else:
+            return set(self._sqlite_decode(value[0]))
+
+    def hasproperties(self, path):
+        return self._cursor.execute("SELECT properties FROM property WHERE path = ?", (path,)) is not None
+
+    def reset_all_propertives(self):
+        self._cursor.execute("DELETE FROM property")
+        self._conn.commit()
+
+    def reset_properties(self, path):
+        self._cursor.execute("DELETE FROM property WHERE path = ?", (path,))
+        self._conn.commit()
+
+    def get_properties(self, context):
+        """return all properties in a dictionary
+        """
+        self._cursor.execute("SELECT * FROM property")
+        ret = {}
+        for path, properties in self._cursor.fetchall():
+            if path == '_none':
+                opt = None
+            else:
+                opt = context.cfgimpl_get_description().impl_get_opt_by_path(path)
+            properties = self._sqlite_decode(properties)
+            ret[opt] = properties
+        return ret
+
+    # permissive
+    def setpermissive(self, path, permissive):
+        self._cursor.execute("DELETE FROM permissive WHERE path = ?", (path,))
+        self._cursor.execute("INSERT INTO permissive(path, permissives) VALUES (?, ?)",
+                             (path, self._sqlite_encode(permissive)))
+        self._conn.commit()
+
+    def getpermissive(self, path='_none'):
+        self._cursor.execute("SELECT permissives FROM permissive WHERE path = ?", (path,))
+        permissives = self._cursor.fetchone()
+        if permissives is None:
+            return frozenset()
+        else:
+            return frozenset(self._sqlite_decode(permissives[0]))

tiramisu/plugins/sqlite3/value.py

@@ -0,0 +1,104 @@
+# -*- coding: utf-8 -*-
+"default plugin for value: set it in a simple dictionary"
+# Copyright (C) 2013 Team tiramisu (see AUTHORS for all contributors)
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# ____________________________________________________________
+
+from tiramisu.plugins.sqlite3.cache import Cache
+from tiramisu.setting import owners
+
+
+class Values(Cache):
+    __slots__ = tuple()
+
+    def __init__(self, config_id):
+        """init plugin means create values storage
+        """
+        values_table = 'CREATE TABLE IF NOT EXISTS value(path text primary key, value text, owner text)'
+        # should init cache too
+        super(Values, self).__init__(config_id, 'value')
+        self._cursor.execute(values_table)
+        self._conn.commit()
+
+    # sqlite
+    def _sqlite_select(self, path):
+        self._cursor.execute("SELECT value FROM value WHERE path = ?", (path,))
+        return self._cursor.fetchone()
+
+    # value
+    def setvalue(self, path, value, owner):
+        """set value for an option
+        a specified value must be associated to an owner
+        """
+        self.resetvalue(path)
+        self._cursor.execute("INSERT INTO value(path, value, owner) VALUES (?, ?, ?)",
+                             (path, self._sqlite_encode(value), str(owner)))
+        self._conn.commit()
+
+    def getvalue(self, path):
+        """get value for an option
+        return: only value, not the owner
+        """
+        return self._sqlite_decode(self._sqlite_select(path)[0])
+
+    def hasvalue(self, path):
+        """if opt has a value
+        return: boolean
+        """
+        return self._sqlite_select(path) is not None
+
+    def resetvalue(self, path):
+        """remove value means delete value in storage
+        """
+        self._cursor.execute("DELETE FROM value WHERE path = ?", (path,))
+        self._conn.commit()
+
+    def get_modified_values(self, context):
+        """return all values in a dictionary
+        example: {option1: (owner, 'value1'), option2: (owner, 'value2')}
+        """
+        self._cursor.execute("SELECT value")
+        ret = {}
+        for path, value, owner in self._cursor.fetchall():
+            opt = context.cfgimpl_get_description().impl_get_opt_by_path(path)
+            owner = getattr(owners, owner)
+
+            value = self._sqlite_decode(value)
+            ret[opt] = (owner, value)
+        return ret
+
+    # owner
+    def setowner(self, path, owner):
+        """change owner for an option
+        """
+        self._cursor.execute("UPDATE value SET owner = ? WHERE path = ?", (str(owner), path))
+        self._conn.commit()
+
+    def getowner(self, path, default):
+        """get owner for an option
+        return: owner object
+        """
+        self._cursor.execute("SELECT owner FROM value WHERE path = ?", (path,))
+        owner = self._cursor.fetchone()
+        if owner is None:
+            return default
+        else:
+            return getattr(owners, owner[0])
+
+    def __del__(self):
+        self._cursor.close()
+        self._conn.close()

tiramisu/setting.py

@@ -25,6 +25,7 @@ from copy import copy
 from tiramisu.error import RequirementError, PropertiesOptionError
 from tiramisu.i18n import _
 
+
 default_encoding = 'utf-8'
 expires_time = 5
 ro_remove = ('permissive', 'hidden')
@@ -33,6 +34,7 @@ ro_append = ('frozen', 'disabled', 'validator', 'everything_frozen',
 rw_remove = ('permissive', 'everything_frozen', 'mandatory')
 rw_append = ('frozen', 'disabled', 'validator', 'hidden')
 default_properties = ('expire', 'validator')
+default_storage = 'dictionary'
 
 
 class _const:
@@ -159,12 +161,12 @@ class Property(object):
 
     def append(self, propname):
         self._properties.add(propname)
-        self._setting._set_properties(self._properties, self._opt)
+        self._setting._setproperties(self._properties, self._opt)
 
     def remove(self, propname):
         if propname in self._properties:
             self._properties.remove(propname)
-            self._setting._set_properties(self._properties, self._opt)
+            self._setting._setproperties(self._properties, self._opt)
 
     def reset(self):
         self._setting.reset(opt=self._opt)
@@ -177,31 +179,37 @@ class Property(object):
 
 
 #____________________________________________________________
-class Setting(object):
+class Settings(object):
     "``Config()``'s configuration options"
-    __slots__ = ('context', '_properties', '_permissives', '_owner', '_cache')
+    __slots__ = ('context', '_owner', '_p_')
 
-    def __init__(self, context):
+    def __init__(self, context, config_id, plugin_name):
-        # properties attribute: the name of a property enables this property
-        # key is None for global properties
-        self._properties = {}
-        # permissive properties
-        self._permissives = {}
         # generic owner
         self._owner = owners.user
         self.context = context
-        self._cache = {}
+        import_lib = 'tiramisu.plugins.{0}.setting'.format(plugin_name)
+        self._p_ = __import__(import_lib, globals(), locals(), ['Settings'],
+                              -1).Settings(config_id)
+
+    def _getkey(self, opt):
+        if self._p_.key_is_path:
+            if opt is None:
+                return '_none'
+            else:
+                return self._get_opt_path(opt)
+        else:
+            return opt
 
     #____________________________________________________________
     # properties methods
     def __contains__(self, propname):
-        return propname in self._get_properties()
+        return propname in self._getproperties()
 
     def __repr__(self):
-        return str(list(self._get_properties()))
+        return str(list(self._getproperties()))
 
     def __getitem__(self, opt):
-        return Property(self, self._get_properties(opt), opt)
+        return Property(self, self._getproperties(opt), opt)
 
     def __setitem__(self, opt, value):
         raise ValueError('you must only append/remove properties')
@@ -211,50 +219,49 @@ class Setting(object):
             raise ValueError(_('opt and all_properties must not be set '
                                'together in reset'))
         if all_properties:
-            self._properties = {}
+            self._p_.reset_all_propertives()
         else:
-            try:
+            self._p_.reset_properties(self._getkey(opt))
-                del(self._properties[opt])
-            except KeyError:
-                pass
         self.context.cfgimpl_reset_cache()
 
-    def _get_properties(self, opt=None, is_apply_req=True):
+    def _getproperties(self, opt=None, is_apply_req=True):
         if opt is None:
-            props = self._properties.get(opt, set(default_properties))
+            props = self._p_.getproperties(self._getkey(opt), default_properties)
         else:
-            exp = None
+            ntime = None
-            if opt in self._cache:
+            if self._p_.hascache('property', self._getkey(opt)):
-                exp = time()
+                ntime = time()
-                props, created = self._cache[opt]
+                is_cached, props = self._p_.getcache('property', self._getkey(opt), ntime)
-                if exp < created:
+                if is_cached:
                     return props
             if is_apply_req:
                 self.apply_requires(opt)
-            props = self._properties.get(opt, set(opt._properties))
+            props = self._p_.getproperties(self._getkey(opt), opt._properties)
-            self._set_cache(opt, props, exp)
+            if 'expire' in self:
+                if ntime is None:
+                    ntime = time()
+                self._p_.setcache('property', self._getkey(opt), props, ntime + expires_time)
         return props
 
     def append(self, propname):
         "puts property propname in the Config's properties attribute"
-        Property(self, self._get_properties()).append(propname)
+        Property(self, self._getproperties()).append(propname)
 
     def remove(self, propname):
         "deletes property propname in the Config's properties attribute"
-        Property(self, self._get_properties()).remove(propname)
+        Property(self, self._getproperties()).remove(propname)
 
-    def _set_properties(self, properties, opt=None):
+    def _setproperties(self, properties, opt=None):
         """save properties for specified opt
         (never save properties if same has option properties)
         """
         if opt is None:
-            self._properties[opt] = properties
+            self._p_.setproperties(self._getkey(opt), properties)
         else:
             if set(opt._properties) == properties:
-                if opt in self._properties:
+                self._p_.reset_properties(self._getkey(opt))
-                    del(self._properties[opt])
             else:
-                self._properties[opt] = properties
+                self._p_.setproperties(self._getkey(opt), properties)
         self.context.cfgimpl_reset_cache()
 
     #____________________________________________________________
@@ -262,25 +269,25 @@ class Setting(object):
                             value=None, force_permissive=False,
                             force_properties=None):
         """
-        validation upon the properties related to `opt_or_descr` 
+        validation upon the properties related to `opt_or_descr`
-        
+
         :param opt_or_descr: an option or an option description object
-        :param force_permissive: behaves as if the permissive property was present 
+        :param force_permissive: behaves as if the permissive property was present
-        :param is_descr: we have to know if we are in an option description, 
+        :param is_descr: we have to know if we are in an option description,
-                         just because the mandatory property doesn't exist there 
+                         just because the mandatory property doesn't exist there
-                         
+
         :param is_write: in the validation process, an option is to be modified,
-                         the behavior can be different (typically with the `frozen` 
+                         the behavior can be different (typically with the `frozen`
                          property)
         """
-        # opt properties
+        #opt properties
-        properties = copy(self._get_properties(opt_or_descr))
+        properties = copy(self._getproperties(opt_or_descr))
-        # remove opt permissive
+        #remove opt permissive
-        properties -= self._get_permissive(opt_or_descr)
+        properties -= self._p_.getpermissive(self._getkey(opt_or_descr))
-        # remove global permissive if need
+        #remove global permissive if need
-        self_properties = copy(self._get_properties())
+        self_properties = copy(self._getproperties())
-        if force_permissive is True or 'permissive' in self_properties:
+            if force_permissive is True or 'permissive' in self_properties:
-            properties -= self._get_permissive()
+            properties -= self._p_.getpermissive()
 
         # global properties
         if force_properties is not None:
@@ -293,14 +300,14 @@ class Setting(object):
             properties -= frozenset(('mandatory', 'frozen'))
         else:
             if 'mandatory' in properties and \
-                not self.context.cfgimpl_get_values()._is_empty(opt_or_descr,
+                    not self.context.cfgimpl_get_values()._isempty(
-                                                                    value):
+                        opt_or_descr, value):
                 properties.remove('mandatory')
             if is_write and 'everything_frozen' in self_properties:
                 properties.add('frozen')
             elif 'frozen' in properties and not is_write:
                 properties.remove('frozen')
-        # at this point an option should not remain in properties 
+        # at this point an option should not remain in properties
         if properties != frozenset():
             props = list(properties)
             if 'frozen' in properties:
@@ -315,13 +322,11 @@ class Setting(object):
                                               "").format(opt_or_descr._name,
                                               str(props)), props)
 
-    def _get_permissive(self, opt=None):
+    #FIXME should be setpermissive
-        return self._permissives.get(opt, frozenset())
-
     def set_permissive(self, permissive, opt=None):
         if not isinstance(permissive, tuple):
             raise TypeError(_('permissive must be a tuple'))
-        self._permissives[opt] = frozenset(permissive)
+        self._p_.setpermissive(self._getkey(opt), permissive)
 
     #____________________________________________________________
     def setowner(self, owner):
@@ -348,22 +353,11 @@ class Setting(object):
         "convenience method to freeze, hidde and disable"
         self._read(rw_remove, rw_append)
 
-    def _set_cache(self, opt, props, exp):
-        if 'expire' in self:
-            if exp is None:
-                exp = time()
-            self._cache[opt] = (props, time() + expires_time)
-
     def reset_cache(self, only_expired):
         if only_expired:
-            exp = time()
+            self._p_.reset_expired_cache('property', time())
-            keys = self._cache.keys()
-            for key in keys:
-                props, created = self._cache[key]
-                if exp > created:
-                    del(self._cache[key])
         else:
-            self._cache.clear()
+            self._p_.reset_all_cache('property')
 
     def apply_requires(self, opt):
         "carries out the jit (just in time requirements between options"
@@ -371,7 +365,7 @@ class Setting(object):
             return
 
         # filters the callbacks
-        setting = Property(self, self._get_properties(opt, False), opt)
+        setting = Property(self, self._getproperties(opt, False), opt)
         descr = self.context.cfgimpl_get_description()
         optpath = descr.impl_get_path_by_opt(opt)
         for requires in opt._requires:
@@ -413,3 +407,6 @@ class Setting(object):
             # no requirement has been triggered, then just reverse the action
             if not matches:
                 setting.remove(action)
+
+    def _get_opt_path(self, opt):
+        return self.context.cfgimpl_get_description().impl_get_path_by_opt(opt)

tiramisu/value.py

@@ -31,9 +31,9 @@ class Values(object):
     but the values are physicaly located here, in `Values`, wich is also
     responsible of a caching utility.
     """
-    __slots__ = ('context', '_values', '_cache')
+    __slots__ = ('context', '_p_')
 
-    def __init__(self, context):
+    def __init__(self, context, config_id, plugin_name):
         """
         Initializes the values's dict.
 
@@ -42,11 +42,17 @@ class Values(object):
         """
 
         self.context = context
-        self._values = {}
+        import_lib = 'tiramisu.plugins.{0}.value'.format(plugin_name)
-        self._cache = {}
+        self._p_ = __import__(import_lib, globals(), locals(), ['Values'],
-        super(Values, self).__init__()
+                              -1).Values(config_id)
 
-    def _get_default(self, opt):
+    def _getkey(self, opt):
+        if self._p_.key_is_path:
+            return self._get_opt_path(opt)
+        else:
+            return opt
+
+    def _getdefault(self, opt):
         meta = self.context.cfgimpl_get_meta()
         if meta is not None:
             value = meta.cfgimpl_get_values()[opt]
@@ -57,34 +63,45 @@ class Values(object):
         else:
             return value
 
-    def _get_value(self, opt, validate=True):
+    def _getvalue(self, opt, validate=True):
         "return value or default value if not set"
-        #if no value
+        key = self._getkey(opt)
-        if opt not in self._values:
+        if not self._p_.hasvalue(key):
-            value = self._get_default(opt)
+            #if no value
+            value = self._getdefault(opt)
             if opt.impl_is_multi():
                 value = Multi(value, self.context, opt, validate)
         else:
             #if value
-            value = self._values[opt][1]
+            value = self._p_.getvalue(key)
+            if opt.impl_is_multi() and not isinstance(value, Multi):
+                #load value so don't need to validate if is not a Multi
+                value = Multi(value, self.context, opt, validate=False)
         return value
 
-    def __delitem__(self, opt):
+    def get_modified_values(self):
-        self._reset(opt)
+        return self._p_.get_modified_values()
 
-    def _reset(self, opt):
+    def __contains__(self, opt):
-        if opt in self._values:
+        return self._p_.hasvalue('value', self._getkey(opt))
+
+    def __delitem__(self, opt):
+        self.reset(opt)
+
+    def reset(self, opt):
+        key = self._getkey(opt)
+        if self._p_.hasvalue(key):
             setting = self.context.cfgimpl_get_settings()
             opt.impl_validate(opt.impl_getdefault(), self.context,
                               'validator' in setting)
             self.context.cfgimpl_reset_cache()
             if (opt.impl_is_multi() and
-                opt.impl_get_multitype() == multitypes.master):
+                    opt.impl_get_multitype() == multitypes.master):
                 for slave in opt.impl_get_master_slaves():
-                    self._reset(slave)
+                    self.reset(slave)
-            del(self._values[opt])
+            self._p_.resetvalue(key)
 
-    def _is_empty(self, opt, value):
+    def _isempty(self, opt, value):
         "convenience method to know if an option is empty"
         empty = opt._empty
         if (not opt.impl_is_multi() and (value is None or value == empty)) or \
@@ -105,21 +122,27 @@ class Values(object):
     def __getitem__(self, opt):
         return self.getitem(opt)
 
-    def get_modified_values(self):
-        return self._values
-
     def getitem(self, opt, validate=True, force_permissive=False,
                 force_properties=None, validate_properties=True):
-        if opt in self._cache:
+        ntime = None
-            exp = time()
+        key = self._getkey(opt)
-            value, created = self._cache[opt]
+        if self._p_.hascache('value', self._getkey(opt)):
-            if exp < created:
+            ntime = time()
+            is_cached, value = self._p_.getcache('value', key, ntime)
+            if is_cached:
+                if opt.impl_is_multi() and not isinstance(value, Multi):
+                    #load value so don't need to validate if is not a Multi
+                    value = Multi(value, self.context, opt, validate=False)
                 return value
         val = self._getitem(opt, validate, force_permissive, force_properties,
                             validate_properties)
-        if validate and validate_properties and force_permissive is False and \
+        if 'expire' in self.context.cfgimpl_get_settings() and validate and \
+                validate_properties and force_permissive is False and \
                 force_properties is None:
-            self._set_cache(opt, val)
+            if ntime is None:
+                ntime = time()
+            self._p_.setcache('value', key, val, ntime + expires_time)
+
         return val
 
     def _getitem(self, opt, validate, force_permissive, force_properties,
@@ -130,15 +153,12 @@ class Values(object):
         # if value is callback and is not set
         # or frozen with force_default_on_freeze
         if opt.impl_has_callback() and (
-           self.is_default_owner(opt) or
+                self.is_default_owner(opt) or
-           (is_frozen and
+                (is_frozen and 'force_default_on_freeze' in setting[opt])):
-           'force_default_on_freeze' in setting[opt])):
             no_value_slave = False
             if (opt.impl_is_multi() and
-                opt.impl_get_multitype() == multitypes.slave):
+                    opt.impl_get_multitype() == multitypes.slave):
-                masterp = self.context.cfgimpl_get_description(
+                masterp = self._get_opt_path(opt.impl_get_master_slaves())
-                          ).impl_get_path_by_opt(
-                          opt.impl_get_master_slaves())
                 mastervalue = getattr(self.context, masterp)
                 lenmaster = len(mastervalue)
                 if lenmaster == 0:
@@ -148,20 +168,20 @@ class Values(object):
             if not no_value_slave:
                 value = self._getcallback_value(opt)
                 if (opt.impl_is_multi() and
-                    opt.impl_get_multitype() == multitypes.slave):
+                        opt.impl_get_multitype() == multitypes.slave):
                     if not isinstance(value, list):
                         value = [value for i in range(lenmaster)]
             if opt.impl_is_multi():
                 value = Multi(value, self.context, opt, validate)
             #suppress value if already set
-            self._reset(opt)
+            self.reset(opt)
         # frozen and force default
         elif is_frozen and 'force_default_on_freeze' in setting[opt]:
-            value = self._get_default(opt)
+            value = self._getdefault(opt)
             if opt.impl_is_multi():
                 value = Multi(value, self.context, opt, validate)
         else:
-            value = self._get_value(opt, validate)
+            value = self._getvalue(opt, validate)
         if validate:
             opt.impl_validate(value, self.context, 'validator' in setting)
         if self.is_default_owner(opt) and \
@@ -191,30 +211,31 @@ class Values(object):
                   force_properties=None,
                   is_write=True, validate_properties=True):
         self.context.cfgimpl_reset_cache()
-        setting = self.context.cfgimpl_get_settings()
         if validate_properties:
+            setting = self.context.cfgimpl_get_settings()
             setting.validate_properties(opt, False, is_write,
                                         value=value,
                                         force_permissive=force_permissive,
                                         force_properties=force_properties)
-        self._values[opt] = (setting.getowner(), value)
+        owner = self.context.cfgimpl_get_settings().getowner()
+        self._p_.setvalue(self._getkey(opt), value, owner)
 
     def getowner(self, opt):
         if isinstance(opt, SymLinkOption):
             opt = opt._opt
-        owner = self._values.get(opt, (owners.default, None))[0]
+        owner = self._p_.getowner(self._getkey(opt), owners.default)
         meta = self.context.cfgimpl_get_meta()
         if owner is owners.default and meta is not None:
             owner = meta.cfgimpl_get_values().getowner(opt)
         return owner
 
     def setowner(self, opt, owner):
-        if opt not in self._values:
-            raise ConfigError(_('no value for {0} cannot change owner'
-                                ' to {1}').format(opt._name, owner))
         if not isinstance(owner, owners.Owner):
             raise TypeError(_("invalid generic owner {0}").format(str(owner)))
-        self._values[opt] = (owner, self._values[opt][1])
+        if self.getowner(opt) == owners.default:
+            raise ConfigError(_('no value for {0} cannot change owner to {1}'
+                                '').format(opt._name, owner))
+        self._p_.setowner(self._getkey(opt), owner)
 
     def is_default_owner(self, opt):
         """
@@ -224,23 +245,14 @@ class Values(object):
         """
         return self.getowner(opt) == owners.default
 
-    def _set_cache(self, opt, val):
-        if 'expire' in self.context.cfgimpl_get_settings():
-            self._cache[opt] = (val, time() + expires_time)
-
     def reset_cache(self, only_expired):
         if only_expired:
-            exp = time()
+            self._p_.reset_expired_cache('value', time())
-            keys = self._cache.keys()
-            for key in keys:
-                val, created = self._cache[key]
-                if exp > created:
-                    del(self._cache[key])
         else:
-            self._cache.clear()
+            self._p_.reset_all_cache('value')
 
-    def __contains__(self, opt):
+    def _get_opt_path(self, opt):
-        return opt in self._values
+        return self.context.cfgimpl_get_description().impl_get_path_by_opt(opt)
 
 # ____________________________________________________________
 # multi types
@@ -273,13 +285,15 @@ class Multi(list):
             self.opt.impl_get_master_slaves())
         mastervalue = getattr(self.context, masterp)
         masterlen = len(mastervalue)
-        if len(value) > masterlen or (len(value) < masterlen and
+        valuelen = len(value)
-           not self.context.cfgimpl_get_values().is_default_owner(self.opt)):
+        if valuelen > masterlen or (valuelen < masterlen and
+                                    not self.context.cfgimpl_get_values(
+                                    ).is_default_owner(self.opt)):
             raise SlaveError(_("invalid len for the slave: {0}"
                                " which has {1} as master").format(
                                    self.opt._name, masterp))
-        elif len(value) < masterlen:
+        elif valuelen < masterlen:
-            for num in range(0, masterlen - len(value)):
+            for num in range(0, masterlen - valuelen):
                 value.append(self.opt.impl_getdefault_multi())
         #else: same len so do nothing
         return value
@@ -289,7 +303,7 @@ class Multi(list):
         values = self.context.cfgimpl_get_values()
         for slave in self.opt._master_slaves:
             if not values.is_default_owner(slave):
-                value_slave = values._get_value(slave)
+                value_slave = values._getvalue(slave)
                 if len(value_slave) > masterlen:
                     raise SlaveError(_("invalid len for the master: {0}"
                                        " which has {1} as slave with"
@@ -303,8 +317,8 @@ class Multi(list):
     def __setitem__(self, key, value):
         self._validate(value)
         #assume not checking mandatory property
-        self.context.cfgimpl_get_values()._setvalue(self.opt, self)
         super(Multi, self).__setitem__(key, value)
+        self.context.cfgimpl_get_values()._setvalue(self.opt, self)
 
     def append(self, value, force=False):
         """the list value can be updated (appened)
@@ -322,12 +336,8 @@ class Multi(list):
                     if isinstance(value, list):
                         value = None
         self._validate(value)
-        #set value without valid properties
-        self.context.cfgimpl_get_values(
-             )._setvalue(self.opt,
-                         self,
-                         validate_properties=not force)
         super(Multi, self).append(value)
+        self.context.cfgimpl_get_values()._setvalue(self.opt, self, validate_properties=not force)
         if not force and self.opt.impl_get_multitype() == multitypes.master:
             for slave in self.opt.impl_get_master_slaves():
                 if not values.is_default_owner(slave):
@@ -336,41 +346,44 @@ class Multi(list):
                         dvalue = values._getcallback_value(slave, index=index)
                     else:
                         dvalue = slave.impl_getdefault_multi()
-                    #get multi without valid properties
+                    old_value = values.getitem(slave, validate_properties=False)
-                    values.getitem(slave, validate_properties=False).append(
+                    if len(old_value) < self.__len__():
-                        dvalue, force=True)
+                        values.getitem(slave, validate_properties=False).append(
+                            dvalue, force=True)
+                    else:
+                        values.getitem(slave, validate_properties=False)[index] = dvalue
 
     def sort(self, cmp=None, key=None, reverse=False):
         if self.opt.impl_get_multitype() in [multitypes.slave,
                                              multitypes.master]:
             raise SlaveError(_("cannot sort multi option {0} if master or slave"
                                "").format(self.opt._name))
-        self.context.cfgimpl_get_values()._setvalue(self.opt, self)
         super(Multi, self).sort(cmp=cmp, key=key, reverse=reverse)
+        self.context.cfgimpl_get_values()._setvalue(self.opt, self)
 
     def reverse(self):
         if self.opt.impl_get_multitype() in [multitypes.slave,
                                              multitypes.master]:
             raise SlaveError(_("cannot reverse multi option {0} if master or "
                                "slave").format(self.opt._name))
-        self.context.cfgimpl_get_values()._setvalue(self.opt, self)
         super(Multi, self).reverse()
+        self.context.cfgimpl_get_values()._setvalue(self.opt, self)
 
     def insert(self, index, obj):
         if self.opt.impl_get_multitype() in [multitypes.slave,
                                              multitypes.master]:
             raise SlaveError(_("cannot insert multi option {0} if master or "
                                "slave").format(self.opt._name))
-        self.context.cfgimpl_get_values()._setvalue(self.opt, self)
         super(Multi, self).insert(index, obj)
+        self.context.cfgimpl_get_values()._setvalue(self.opt, self)
 
     def extend(self, iterable):
         if self.opt.impl_get_multitype() in [multitypes.slave,
                                              multitypes.master]:
             raise SlaveError(_("cannot extend multi option {0} if master or "
                                "slave").format(self.opt._name))
-        self.context.cfgimpl_get_values()._setvalue(self.opt, self)
         super(Multi, self).extend(iterable)
+        self.context.cfgimpl_get_values()._setvalue(self.opt, self)
 
     def _validate(self, value):
         if value is not None:
@@ -378,8 +391,9 @@ class Multi(list):
                 self.opt._validate(value)
             except ValueError, err:
                 raise ValueError(_("invalid value {0} "
-                                   "for option {1}: {2}").format(str(value),
+                                   "for option {1}: {2}"
-                                   self.opt._name, err))
+                                   "").format(str(value),
+                                              self.opt._name, err))
 
     def pop(self, key, force=False):
         """the list value can be updated (poped)
@@ -401,8 +415,6 @@ class Multi(list):
                                        validate_properties=False
                                        ).pop(key, force=True)
         #set value without valid properties
-        self.context.cfgimpl_get_values(
+        ret = super(Multi, self).pop(key)
-            )._setvalue(self.opt,
+        self.context.cfgimpl_get_values()._setvalue(self.opt, self, validate_properties=not force)
-                        self,
+        return ret
-                        validate_properties=not force)
-        return super(Multi, self).pop(key)