def set_value(self, obj, value=None, check_mandatory=True):
if self.deprecated:
if value is not None:
msg = 'Depreciated parameter supplied for "{}" in "{}". The value will be ignored.'
logger.warning(msg.format(self.name, obj.name))
return
if value is None:
if self.default is not None:
value = self.kind(self.default)
elif check_mandatory and self.mandatory:
msg = 'No values specified for mandatory parameter "{}" in {}'
raise ConfigError(msg.format(self.name, obj.name))
else:
try:
value = self.kind(value)
except (ValueError, TypeError):
typename = get_type_name(self.kind)
msg = 'Bad value "{}" for {}; must be {} {}'
article = get_article(typename)
raise ConfigError(msg.format(value, self.name, article, typename))
if value is not None:
self.validate_value(self.name, value)
if self.merge and hasattr(obj, self.name):
value = merge_config_values(getattr(obj, self.name), value)
setattr(obj, self.name, value)
def get_plugin_class(self, name, kind=None):
"""
Return the class for the specified plugin if found or raises ``ValueError``.
"""
name, _ = self.resolve_alias(name)
if kind is None:
try:
return self.plugins[name]
except KeyError:
raise NotFoundError('plugins {} not found.'.format(name))
if kind not in self.kind_map:
raise ValueError('Unknown plugin type: {}'.format(kind))
store = self.kind_map[kind]
if name not in store:
msg = 'plugins {} is not {} {}.'
raise NotFoundError(msg.format(name, get_article(kind), kind))
return store[name]
def set_value(self, obj, value=None, check_mandatory=True):
if value is None:
if self.default is not None:
value = self.kind(self.default)
elif check_mandatory and self.mandatory:
msg = 'No values specified for mandatory parameter "{}" in {}'
raise ConfigError(msg.format(self.name, obj.name))
else:
try:
value = self.kind(value)
except (ValueError, TypeError):
typename = get_type_name(self.kind)
msg = 'Bad value "{}" for {}; must be {} {}'
article = get_article(typename)
raise ConfigError(msg.format(value, self.name, article, typename))
if value is not None:
self.validate_value(self.name, value)
if self.merge and hasattr(obj, self.name):
value = merge_config_values(getattr(obj, self.name), value)
setattr(obj, self.name, value)