@SuppressWarnings("unchecked")
public <R> ExecuteWithFailover<CL, R> newExecuteWithFailover(Operation<CL, R> operation)
throws ConnectionException {
try {
if (operation.getPinnedHost() != null) {
HostConnectionPool<CL> pool = hosts.get(operation.getPinnedHost());
if (pool == null) {
throw new NoAvailableHostsException("Host " + operation.getPinnedHost() + " not active");
}
return new RoundRobinExecuteWithFailover<CL, R>(
config, monitor, Arrays.<HostConnectionPool<CL>>asList(pool), 0);
}
int index = roundRobinCounter.incrementAndGet();
if (index > Integer.MAX_VALUE / 2) {
roundRobinCounter.set(0);
index = 0;
}
return new RoundRobinExecuteWithFailover<CL, R>(
config, monitor, topology.getAllPools().getPools(), index);
} catch (ConnectionException e) {
monitor.incOperationFailure(e.getHost(), e);
throw e;
}
}
