def register_plugins(cls):
cls._plugins = {}
# make sure modules are loaded
import_feature_plugins()
# register plugins, find all leaf implementation classes derived from this class
subclasses = set()
work = [cls]
while work:
parent = work.pop()
if not parent.__subclasses__():
subclasses.add(parent)
continue
for child in parent.__subclasses__():
if child not in subclasses:
work.append(child)
# register all plugins,
# if there is any exception, continue to register all other plugins,
# finally throw one single exception to the caller
exceptions = []
for scls in subclasses or []:
try:
feature_name = scls.feature_name()
if feature_name in cls._plugins:
exceptions.append("Duplicate plugin found for feature %s" %
feature_name)
else:
cls._plugins[feature_name] = scls
except Exception as e:
exceptions.append(str(e))
if exceptions:
raise PluginRegistrationFailed(exceptions)
def register_plugins(cls):
cls._plugins = {}
# make sure modules are loaded
import_feature_plugins()
# register plugins, find all leaf implementation classes derived from this class
subclasses = set()
work = [cls]
while work:
parent = work.pop()
if not parent.__subclasses__():
subclasses.add(parent)
continue
for child in parent.__subclasses__():
if child not in subclasses:
work.append(child)
# register all plugins,
# if there is any exception, continue to register all other plugins,
# finally throw one single exception to the caller
exceptions = []
for scls in subclasses or []:
try:
feature_name = scls.feature_name()
if feature_name in cls._plugins:
exceptions.append("Duplicate plugin found for feature %s" % feature_name)
else:
cls._plugins[feature_name] = scls
except Exception as e:
exceptions.append(str(e))
if exceptions:
raise PluginRegistrationFailed(exceptions)