def _initialize(self):
# Manages a RDB engine and a metadata instance for this repository.
# Both are global objects that should only be created once per process
# (for each RDB repository), hence we use a global object manager.
if not is_engine_initialized(self.name):
engine = self.__make_engine()
set_engine(self.name, engine)
# Bind the engine to the session factory and the metadata.
self.session_factory.configure(bind=engine)
else:
engine = get_engine(self.name)
if not is_metadata_initialized(self.name):
md_fac = self._config['metadata_factory']
if self._config.get('messaging_enable', False):
# Wrap the metadata callback to also call the mapping
# function for system entities.
reset_on_start = \
self._config.get('messaging_reset_on_start', False)
def wrapper(engine, reset_on_start=reset_on_start):
metadata = md_fac(engine)
map_system_entities(engine, metadata, reset_on_start)
return metadata
metadata = wrapper(engine)
else:
metadata = md_fac(engine)
set_metadata(self.name, metadata)
else:
metadata = get_metadata(self.name)
metadata.bind = engine
def _initialize(self):
# Manages a RDB engine and a metadata instance for this repository.
# Both are global objects that should only be created once per process
# (for each RDB repository), hence we use a global object manager.
if not is_engine_initialized(self.name):
engine = self.__make_engine()
set_engine(self.name, engine)
# Bind the engine to the session factory and the metadata.
self.session_factory.configure(bind=engine)
else:
engine = get_engine(self.name)
if not is_metadata_initialized(self.name):
md_fac = self._config["metadata_factory"]
if self._config.get("messaging_enable", False):
# Wrap the metadata callback to also call the mapping
# function for system entities.
reset_on_start = self._config.get("messaging_reset_on_start", False)
def wrapper(engine, reset_on_start=reset_on_start):
metadata = md_fac(engine)
map_system_entities(engine, metadata, reset_on_start)
return metadata
metadata = wrapper(engine)
else:
metadata = md_fac(engine)
set_metadata(self.name, metadata)
else:
metadata = get_metadata(self.name)
metadata.bind = engine
def test_metadata_manager(self):
key = 'test'
self.assert_false(is_metadata_initialized(key))
md = MetaData()
set_metadata(key, md)
self.assert_raises(ValueError, set_metadata, key, md)
self.assert_true(is_metadata_initialized(key))
self.assert_true(get_metadata(key) is md)
reset_metadata()
self.assert_false(is_metadata_initialized(key))
def test_metadata_manager(self):
key = 'test'
self.assert_false(is_metadata_initialized(key))
md = MetaData()
set_metadata(key, md)
self.assert_raises(ValueError, set_metadata, key, md)
self.assert_true(is_metadata_initialized(key))
self.assert_true(get_metadata(key) is md)
reset_metadata()
self.assert_false(is_metadata_initialized(key))
