def fetch_routing_info(self, address):
""" Fetch raw routing info from a given router address.
:param address: router address
:return: list of routing records or
None if no connection could be established
:raise ServiceUnavailable: if the server does not support routing or
if routing support is broken
"""
metadata = {}
records = []
def fail(md):
if md.get("code") == "Neo.ClientError.Procedure.ProcedureNotFound":
raise RoutingProtocolError("Server {!r} does not support routing".format(address))
else:
raise RoutingProtocolError("Routing support broken on server {!r}".format(address))
try:
with self.acquire_direct(address) as cx:
_, _, server_version = (cx.server.agent or "").partition("/")
if server_version and Version.parse(server_version) >= Version((3, 2)):
cx.run("CALL dbms.cluster.routing.getRoutingTable({context})",
{"context": self.routing_context}, on_success=metadata.update, on_failure=fail)
else:
cx.run("CALL dbms.cluster.routing.getServers", {}, on_success=metadata.update, on_failure=fail)
cx.pull_all(on_success=metadata.update, on_records=records.extend)
cx.sync()
except RoutingProtocolError as error:
raise ServiceUnavailable(*error.args)
except ServiceUnavailable:
self.deactivate(address)
return None
else:
return [dict(zip(metadata.get("fields", ()), values)) for values in records]
def test_double_dot(self):
v = Version.parse("1.2..3")
self.assertEqual(v, ((1, 2, 0, 3), ))
def test_double_dash(self):
v = Version.parse("1.2--3")
self.assertEqual(v, ((1, 2), (0, ), (3, )))
def test_snapshot(self):
v = Version.parse("1.2-snapshot")
self.assertEqual(v, ((1, 2), ("snapshot", )))
def test_alpha(self):
v = Version.parse("1.2.3-alpha01")
self.assertEqual(v, ((1, 2, 3), ("alpha", ), (1, )))
def test_major_minor_patch(self):
v = Version.parse("1.2.3")
self.assertEqual(v, ((1, 2, 3), ))
def test_major_minor(self):
v = Version.parse("1.2")
self.assertEqual(v, ((1, 2), ))