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generic properties api

This commit is contained in:
gwen 2012-09-14 11:55:32 +02:00
parent 9604fd15ec
commit 934d011847
2 changed files with 35 additions and 32 deletions
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53
tiramisu/config.py
View File

@ -27,9 +27,12 @@ from tiramisu.error import (PropertiesOptionError, ConfigError, NotFoundError,
from tiramisu.option import (OptionDescription, Option, SymLinkOption,
group_types, Multi, apply_requires)
from tiramisu.autolib import carry_out_calculation
import traceback
# ______________________________________________________________________
# generic owner. 'default' is the general config owner after init time
default_owner = 'user'
DEBUG = False
# ____________________________________________________________
class Config(object):
_cfgimpl_properties = ['hidden', 'disabled']
@ -145,7 +148,7 @@ class Config(object):
if self._cfgimpl_parent != None:
raise MethodCallError("this method root_hide() shall not be"
"used with non-root Config() object")
if propname not in in self._cfgimpl_properties:
if propname not in self._cfgimpl_properties:
self._cfgimpl_properties.append(propname)
def cfgimpl_disable_property(self, propname):
@ -153,7 +156,7 @@ class Config(object):
raise MethodCallError("this method root_hide() shall not be"
"used with non-root Config() object")
if self._cfgimpl_has_property(propname):
self.properties.remove(propname)
self._cfgimpl_properties.remove(propname)
def cfgimpl_non_mandatory(self):
if self._cfgimpl_parent != None:
@ -184,21 +187,20 @@ class Config(object):
def _validate(self, name, opt_or_descr):
apply_requires(opt_or_descr, self)
if not type(opt_or_descr) == OptionDescription:
if self._cfgimpl_toplevel._cfgimpl_has_properties() and \
opt_or_descr.has_properties():
raise PropertiesOptionError("trying to access"
" to an option named: {0} with properties"
" {1}".format(name, opt_or_descr.properties),
opt_or_descr.properties)
if self._cfgimpl_toplevel._cfgimpl_has_properties() and \
self._cfgimpl_descr.has_properties():
raise PropertiesOptionError("trying to access"
" to an option's group named: {0}"
" for option named: {1} with properties {2}".format(
self._cfgimpl_descr._name, name,
opt_or_descr.properties),
self._cfgimpl_descr.properties)
if not isinstance(opt_or_descr, Option) and \
not isinstance(opt_or_descr, OptionDescription):
if DEBUG:
traceback.print_exc()
raise TypeError('Unexpected object: {0}'.format(repr(opt_or_descr)))
properties = opt_or_descr.properties
for proper in properties:
if not self._cfgimpl_toplevel._cfgimpl_has_property(proper):
properties.remove(proper)
if properties != []:
raise PropertiesOptionError("trying to access"
" to an option named: {0} with properties"
" {1}".format(name, str(properties)),
properties)
def _is_empty(self, opt):
if (not opt.is_multi() and self._cfgimpl_values[opt._name] == None) or \
@ -217,6 +219,9 @@ class Config(object):
# symlink options
if type(opt_or_descr) == SymLinkOption:
return getattr(self, opt_or_descr.path)
if name not in self._cfgimpl_values:
raise AttributeError("%s object has no attribute %s" %
(self.__class__, name))
self._validate(name, opt_or_descr)
# special attributes
if name.startswith('_cfgimpl_'):
@ -224,11 +229,11 @@ class Config(object):
return self.__dict__[name]
raise AttributeError("%s object has no attribute %s" %
(self.__class__, name))
if name not in self._cfgimpl_values:
raise AttributeError("%s object has no attribute %s" %
(self.__class__, name))
if not isinstance(opt_or_descr, OptionDescription):
# options with callbacks (fill or auto)
if name == 'interface_gw':
print "pouet"
print opt_or_descr.has_callback()
if opt_or_descr.has_callback():
value = self._cfgimpl_values[name]
if (not opt_or_descr.is_frozen() or \
@ -448,16 +453,16 @@ class Config(object):
# hung up on freeze, hidden and disabled concepts
self.cfgimpl_freeze()
rootconfig = self._cfgimpl_get_toplevel()
rootconfig.cfgimpl_hide()
rootconfig.cfgimpl_disable()
rootconfig.cfgimpl_disable_property('hidden')
rootconfig.cfgimpl_enable_property('disabled')
rootconfig._cfgimpl_mandatory = True
def cfgimpl_read_write(self):
# hung up on freeze, hidden and disabled concepts
self.cfgimpl_unfreeze()
rootconfig = self._cfgimpl_get_toplevel()
rootconfig.cfgimpl_hide()
rootconfig.cfgimpl_disable()
rootconfig.cfgimpl_enable_property('hidden')
rootconfig.cfgimpl_disable_property('disabled')
rootconfig._cfgimpl_mandatory = False
# ____________________________________________________________
def getkey(self):

12
tiramisu/option.py
View File

@ -190,11 +190,12 @@ class Option(HiddenBaseType, DisabledBaseType):
def setoption(self, config, value, who):
"who is **not necessarily** a owner because it cannot be a list"
name = self._name
# the value cannot be changed if a callback is defined
if self.has_callback():
raise TypeError("trying to change an option with callback: %s" % name)
# we want the possibility to reset everything
if not (who == "default" and value is None) and not self.validate(value):
self.default = None
return
if not self.validate(value):
raise ConfigError('invalid value %s for option %s' % (value, name))
if self.is_mandatory():
# value shall not be '' for a mandatory option
@ -207,12 +208,9 @@ class Option(HiddenBaseType, DisabledBaseType):
(not self.is_multi() and value is None)):
raise MandatoryError('cannot override value to %s for '
'option %s' % (value, name))
if who == "default" and value is None:
self.default = None
return
if name not in config._cfgimpl_values:
raise AttributeError('unknown option %s' % (name))
if config.is_frozen() and (self.has_callback() or self.isfrozen()):
if config.is_frozen() and self.isfrozen():
raise ConflictConfigError('cannot override value to %s for '
'option %s' % (value, name))
if who == "default":