tarantool / tarantool-java / 193

71%

master: 78%

Pull #136

travis-ci

Add support for tarantool clusters

Refactor SocketChannelProvider implementations. Now we have two
SingleSocketChannelProviderImpl and RoundRobinSocketProviderImpl used by
simple and cluster clients respectively. To achieve this a
BaseSocketChannelProvider was extracted.

Add a service discovery implementation based on a tarantool stored
procedure which is called to obtain a new list of cluster nodes.

Integrate service discovery and current cluster client. The client now
is aware of potential nodes changing using a configurable background job
which periodically checks whether node addresses have changed. If so
the client refreshes the RoundRobinSocketProviderImpl and replaces old
nodes by new ones. It also requires some additional effort in case of
missing the current node in the list. We need to reconnect to another
node as soon as possible with a minimal delay between client requests.
To achieve this we currently try to catch a moment when the requests in
progress have been accomplished and we can finish reconnection process.

Fix a regression in TarantoolClientImpl. It is a wrong comparison
between response result code and original request operation code. To
perform a right thing TarantoolOp class was created to wrap an original
future (see TarantoolClientImpl.complete(packet, feature)).

Closes: 34

250 of 250 new or added lines in 10 files covered. (100.0%)

1554 of 2392 relevant lines covered (64.97%)

0.65 hits per line