def _get_all_exporter_units(self):
exporter_map = {}
for provider in get_providers():
for unit in provider.unit_list:
if unit.Meta.name == 'exporter':
exporter_map[unit.id] = ExporterUnitSupport(unit)
return exporter_map
def get_throwaway_manager(cls, provider_list=None):
"""
Create a temporary session manager.
:param provider_list:
(optional) A list of providers to put into the session manager. By
default all known providers are added. You can use this argument to
customize the behaviour beyond defaults.
:returns:
A new SessionManager object that will be destroyed when the context
manager is left.
This method can be used to create a throw-away session manager which is
not really meant for running jobs but can be useful to access exporters
and other objects stored in providers.
"""
with tempfile.TemporaryDirectory() as tmp:
repo = SessionStorageRepository(tmp)
if provider_list is None:
provider_list = get_providers()
try:
manager = cls.create(repo=repo)
manager.add_local_device_context()
device_context = manager.default_device_context
for provider in provider_list:
device_context.add_provider(provider)
yield manager
finally:
manager.destroy()
def get_throwaway_manager(cls, provider_list=None):
"""
Create a temporary session manager.
:param provider_list:
(optional) A list of providers to put into the session manager. By
default all known providers are added. You can use this argument to
customize the behaviour beyond defaults.
:returns:
A new SessionManager object that will be destroyed when the context
manager is left.
This method can be used to create a throw-away session manager which is
not really meant for running jobs but can be useful to access exporters
and other objects stored in providers.
"""
key = hash(frozenset(provider_list)) if provider_list else ''
if not cls._throwaway_managers.get(key):
# for safety let's create more persistent tempdir than
# the TemporaryDirectory context_manager
if provider_list is None:
provider_list = get_providers()
manager = cls.create(prefix="throwaway-")
atexit.register(lambda: manager.destroy())
manager.add_local_device_context()
device_context = manager.default_device_context
cls._throwaway_managers[key] = manager
for provider in provider_list:
device_context.add_provider(provider)
yield cls._throwaway_managers[key]
def get_stack_version():
"""
Generate version information of Checkbox stack components as understood
by Checkbox.
"""
info = OrderedDict()
info['checkbox-ng'] = checkbox_ng.__version__
try:
support_ver = checkbox_support.__version__
except AttributeError:
import pkg_resources
support_ver = pkg_resources.get_distribution(
"checkbox-support").version
info['checkbox-support'] = support_ver
ignored_providers = [
'com.canonical.plainbox:manifest',
'com.canonical.plainbox:exporters',
'com.canonical.plainbox:categories',
]
# maybe filter-out the built-in providers (exporters, categories, etc.)
for provider in get_providers():
if provider.name not in ignored_providers:
info[provider.name] = provider.version
return info
def _load_providers(self):
logger.info("Loading all providers...")
return get_providers()