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# Copyright (C) 2015 Canonical Ltd.
#
# This file is part of cloud-init. See LICENSE file for license information.
"""
cloud-init reporting framework
The reporting framework is intended to allow all parts of cloud-init to
report events in a structured manner.
"""
from ..registry import DictRegistry
from .handlers import available_handlers
DEFAULT_CONFIG = {
'logging': {'type': 'log'},
}
def update_configuration(config):
"""Update the instantiated_handler_registry.
:param config:
The dictionary containing changes to apply. If a key is given
with a False-ish value, the registered handler matching that name
will be unregistered.
"""
for handler_name, handler_config in config.items():
if not handler_config:
instantiated_handler_registry.unregister_item(
handler_name, force=True)
continue
handler_config = handler_config.copy()
cls = available_handlers.registered_items[handler_config.pop('type')]
instantiated_handler_registry.unregister_item(handler_name)
instance = cls(**handler_config)
instantiated_handler_registry.register_item(handler_name, instance)
def flush_events():
for _, handler in instantiated_handler_registry.registered_items.items():
if hasattr(handler, 'flush'):
handler.flush()
instantiated_handler_registry = DictRegistry()
update_configuration(DEFAULT_CONFIG)
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