def make_create_engine_params(db_url=None, dialect=None, **kwargs):
if dialect is None:
dialect = _get_dialect(ASSERT.not_none(db_url))
if dialect == 'postgresql':
params = parameters.Namespace(
'make PostgreSQL database engine',
db_url=parameters.make_parameter(db_url, str),
dialect=parameters.ConstParameter(dialect),
)
elif dialect == 'sqlite':
params = parameters.Namespace(
'make SQLite database engine',
db_url=parameters.make_parameter(db_url, str),
dialect=parameters.ConstParameter(dialect),
check_same_thread=parameters.Parameter(kwargs.get(
'check_same_thread', True),
type=bool),
trace=parameters.Parameter(kwargs.get('trace'),
type=(bool, type(None))),
pragmas=parameters.Parameter(kwargs.get('pragmas', ()),
type=collections.abc.Iterable),
)
else:
ASSERT.unreachable('unsupported dialect: {}', dialect)
return params
def make_client_params(
*,
urls=None,
validate_urls=bool, # Merely check non-empty for now.
send_timeout=2,
recv_timeout=4,
resend_time=None,
):
return parameters.Namespace(
'configure messaging client',
urls=parameters.make_parameter(
urls,
collections.abc.Iterable,
'urls that client connects to',
validate=validate_urls,
),
send_timeout=parameters.Parameter(
send_timeout,
type=(type(None), int, float),
unit='seconds',
),
recv_timeout=parameters.Parameter(
recv_timeout,
type=(type(None), int, float),
unit='seconds',
),
resend_time=parameters.Parameter(
resend_time,
type=(type(None), int, float),
unit='seconds',
),
)
def make_publisher_params(url=None, send_timeout=None):
return parameters.Namespace(
'configure publisher',
url=parameters.make_parameter(url, str,
'url that publisher listens on'),
send_timeout=parameters.Parameter(
send_timeout,
type=(type(None), int, float),
unit='seconds',
),
)
def make_server_params(url=None, parallelism=1):
return parameters.Namespace(
'configure messaging server',
url=parameters.make_parameter(url, str, 'url that server listens on'),
parallelism=parameters.Parameter(
parallelism,
'number of server tasks',
type=int,
validate=(0).__lt__,
),
)
def make_console_params(
*,
enable=False,
socket_dir_path=None,
socket_file_prefix='console-',
):
return parameters.Namespace(
'configure console server',
enable=parameters.make_parameter(
enable,
bool,
),
socket_dir_path=parameters.make_parameter(
socket_dir_path,
Path,
convert=Path,
validate=Path.is_absolute,
format=str,
),
socket_file_prefix=parameters.make_parameter(
socket_file_prefix,
str,
),
)
def make_subscriber_params(
*,
urls=None,
validate_urls=bool, # Merely check non-empty for now.
recv_timeout=None,
):
return parameters.Namespace(
'configure subscriber',
urls=parameters.make_parameter(
urls,
collections.abc.Iterable,
'urls that subscriber dials to',
validate=validate_urls,
),
recv_timeout=parameters.Parameter(
recv_timeout,
type=(type(None), int, float),
unit='seconds',
),
)