def get_target_config_data(self):
"""Read and interpret configuration data defined by targets.
We consider the resolution order for our target and sort it by level
reversed, so that we first look at the top level target (the parent),
then its direct children, then the children of those children and so on,
until we reach self.target
TODO: this might not work so well in some multiple inheritance scenarios
At each step, look at two keys of the target data:
- config_parameters: used to define new configuration parameters
- config_overrides: used to override already defined configuration
parameters
Arguments: None
"""
params, json_data = {}, self.target.json_data
resolution_order = [
e[0] for e in sorted(
self.target.resolution_order, key=lambda e: e[1], reverse=True)
]
for tname in resolution_order:
# Read the target data directly from its description
target_data = json_data[tname]
# Process definitions first
_process_config_parameters(target_data.get("config", {}), params,
tname, "target")
# Then process overrides
for name, val in target_data.get("overrides", {}).items():
full_name = ConfigParameter.get_full_name(
name, tname, "target")
# If the parameter name is not defined or if there isn't a path
# from this target to the target where the parameter was defined
# in the target inheritance tree, raise an error We need to use
# 'defined_by[7:]' to remove the "target:" prefix from
# defined_by
rel_names = [
tgt for tgt, _ in get_resolution_order(
self.target.json_data, tname, [])
]
if full_name in self.__unused_overrides:
continue
if (full_name not in params) or \
(params[full_name].defined_by[7:] not in rel_names):
raise ConfigException(
"Attempt to override undefined parameter '%s' in '%s'"
% (name,
ConfigParameter.get_display_name(tname, "target")))
# Otherwise update the value of the parameter
params[full_name].set_value(val, tname, "target")
return params
def get_target_config_data(self):
"""Read and interpret configuration data defined by targets.
We consider the resolution order for our target and sort it by level
reversed, so that we first look at the top level target (the parent),
then its direct children, then the children of those children and so on,
until we reach self.target
TODO: this might not work so well in some multiple inheritance scenarios
At each step, look at two keys of the target data:
- config_parameters: used to define new configuration parameters
- config_overrides: used to override already defined configuration
parameters
Arguments: None
"""
params, json_data = {}, self.target.json_data
resolution_order = [e[0] for e
in sorted(
self.target.resolution_order,
key=lambda e: e[1], reverse=True)]
for tname in resolution_order:
# Read the target data directly from its description
target_data = json_data[tname]
# Process definitions first
_process_config_parameters(target_data.get("config", {}), params,
tname, "target")
# Then process overrides
for name, val in target_data.get("overrides", {}).items():
full_name = ConfigParameter.get_full_name(name, tname, "target")
# If the parameter name is not defined or if there isn't a path
# from this target to the target where the parameter was defined
# in the target inheritance tree, raise an error We need to use
# 'defined_by[7:]' to remove the "target:" prefix from
# defined_by
rel_names = [tgt for tgt, _ in
get_resolution_order(self.target.json_data, tname,
[])]
if full_name in self.__unused_overrides:
continue
if (full_name not in params) or \
(params[full_name].defined_by[7:] not in rel_names):
raise ConfigException(
"Attempt to override undefined parameter '%s' in '%s'"
% (name,
ConfigParameter.get_display_name(tname, "target")))
# Otherwise update the value of the parameter
params[full_name].set_value(val, tname, "target")
return params