def get_driver(connection_string, *args, **kwargs):
"""Create driver's instance according to specified connection string"""
# NOTE(ayelistratov) Backward compatibility with old Messaging notation
# Remove after patching all OS services
# NOTE(ishakhat) Raise exception when ParsedResult.scheme is empty
if "://" not in connection_string:
connection_string += "://"
parsed_connection = urlparse.urlparse(connection_string)
LOG.debug("String %s looks like a connection string, trying it.",
connection_string)
backend = parsed_connection.scheme
# NOTE(toabctl): To be able to use the connection_string for as sqlalchemy
# connection string, transform the backend to the correct driver
# See https://docs.sqlalchemy.org/en/latest/core/engines.html#database-urls
if backend in ["mysql", "mysql+pymysql", "mysql+mysqldb",
"postgresql", "postgresql+psycopg2"]:
backend = "sqlalchemy"
for driver in _utils.itersubclasses(Driver):
if backend == driver.get_name():
return driver(connection_string, *args, **kwargs)
raise ValueError("Driver not found for connection string: "
"%s" % connection_string)
def get_driver(connection_string, *args, **kwargs):
"""Create driver's instance according to specified connection string"""
# NOTE(ayelistratov) Backward compatibility with old Messaging notation
# Remove after patching all OS services
# NOTE(ishakhat) Raise exception when ParsedResult.scheme is empty
if "://" not in connection_string:
connection_string += "://"
parsed_connection = urlparse.urlparse(connection_string)
LOG.debug("String %s looks like a connection string, trying it.",
connection_string)
backend = parsed_connection.scheme
# NOTE(toabctl): To be able to use the connection_string for as sqlalchemy
# connection string, transform the backend to the correct driver
# See https://docs.sqlalchemy.org/en/latest/core/engines.html#database-urls
if backend in [
"mysql", "mysql+pymysql", "mysql+mysqldb", "postgresql",
"postgresql+psycopg2"
]:
backend = "sqlalchemy"
for driver in _utils.itersubclasses(Driver):
if backend == driver.get_name():
return driver(connection_string, *args, **kwargs)
raise ValueError("Driver not found for connection string: "
"%s" % connection_string)
def test_itersubclasses(self):
class A(object):
pass
class B(A):
pass
class C(A):
pass
class D(C):
pass
self.assertEqual([B, C, D], list(utils.itersubclasses(A)))
class E(type):
pass
self.assertEqual([], list(utils.itersubclasses(E)))
def test_itersubclasses(self):
class A(object):
pass
class B(A):
pass
class C(A):
pass
class D(C):
pass
self.assertEqual([B, C, D], list(utils.itersubclasses(A)))
class E(type):
pass
self.assertEqual([], list(utils.itersubclasses(E)))
def get_driver(connection_string, *args, **kwargs):
"""Create driver's instance according to specified connection string"""
# NOTE(ayelistratov) Backward compatibility with old Messaging notation
# Remove after patching all OS services
# NOTE(ishakhat) Raise exception when ParsedResult.scheme is empty
if "://" not in connection_string:
connection_string += "://"
parsed_connection = urlparse.urlparse(connection_string)
LOG.debug("String %s looks like a connection string, trying it.",
connection_string)
backend = parsed_connection.scheme
for driver in _utils.itersubclasses(Driver):
if backend == driver.get_name():
return driver(connection_string, *args, **kwargs)
raise ValueError("Driver not found for connection string: "
"%s" % connection_string)
def get_driver(connection_string, *args, **kwargs):
"""Create driver's instance according to specified connection string"""
# NOTE(ayelistratov) Backward compatibility with old Messaging notation
# Remove after patching all OS services
# NOTE(ishakhat) Raise exception when ParsedResult.scheme is empty
if "://" not in connection_string:
connection_string += "://"
parsed_connection = urlparse.urlparse(connection_string)
LOG.debug("String %s looks like a connection string, trying it.",
connection_string)
backend = parsed_connection.scheme
for driver in _utils.itersubclasses(Driver):
if backend == driver.get_name():
return driver(connection_string, *args, **kwargs)
raise ValueError("Driver not found for connection string: "
"%s" % connection_string)
def factory(name, *args, **kwargs):
for driver in utils.itersubclasses(Notifier):
if name == driver.__name__:
return driver(*args, **kwargs).notify
raise TypeError("There is no driver, with name: %s" % name)
def factory(name, *args, **kwargs):
for driver in utils.itersubclasses(Notifier):
if name == driver.__name__:
return driver(*args, **kwargs).notify
raise TypeError("There is no driver, with name: %s" % name)