Read without writer - #158
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zhenlineo
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Apr 26, 2017
| context = {} | ||
| parameters = [x for x in query.split('&') if x] | ||
| for keyValue in parameters: | ||
| pair = keyValue.split('=') |
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key, _, value = keyValue.partition("=")
if not key or not value
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zhenlineo
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Apr 26, 2017
| # the connection pool may contain multiple IP address keys, one for | ||
| # an old address and one for a new address. | ||
| if SocketAddress.parse_routing_context(uri): | ||
| raise ValueError("Routing parameters are not supported with scheme 'bolt'. Given URI: '%s'." % uri) |
zhenlineo
commented
Apr 26, 2017
| expired = self.last_updated_time + self.ttl <= self.timer() | ||
| return not expired and len(self.routers) > 1 and self.readers and self.writers | ||
| has_server_for_mode = (access_mode == READ_ACCESS and self.readers) or (access_mode == WRITE_ACCESS and self.writers) | ||
| return not expired and len(self.routers) >= 1 and has_server_for_mode |
zhenlineo
commented
Apr 26, 2017
| if ServerVersion.from_str(connection.server.version).at_least_version(3, 2): | ||
| return self.call_get_routing_table, {self.get_routing_table_param: self.routing_context} | ||
| else: | ||
| return self.call_get_servers |
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return self.call_get_servers, {}
zhenlineo
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Apr 26, 2017
| try: | ||
| with BoltSession(lambda _: self.acquire_direct(address)) as session: | ||
| return list(session.run("CALL %s" % self.routing_info_procedure)) | ||
| connection = self.acquire_direct(address) |
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connections = [None]
def connector(_):
connection = self.acquire_direct(address)
connections[0] = connection
return connection
with BoltSession(connector) as session:
last_connection = connections[0]
zhenlineo
commented
Apr 26, 2017
| raise ServiceUnavailable("Unable to retrieve routing information") | ||
|
|
||
| def refresh_routing_table(self): | ||
| def ensure_routing_table(self, access_mode): |
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ensure_routing_table_is_fresh
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Based on #157 supporting routing context in bolt uri