@Test
public void canRetrieveUnsetKey() {
ShardedJedisPipeline p = jedis.pipelined();
Response<String> shouldNotExist = p.get(UUID.randomUUID().toString());
p.sync();
assertNull(shouldNotExist.get());
}
final Set<UUID> getPlayers() {
ImmutableSet.Builder<UUID> setBuilder = ImmutableSet.builder();
if (pool != null) {
try (Jedis rsc = pool.getResource()) {
List<String> keys = new ArrayList<>();
for (String i : getServerIds()) {
keys.add("proxy:" + i + ":usersOnline");
}
if (!keys.isEmpty()) {
Set<String> users = rsc.sunion(keys.toArray(new String[keys.size()]));
if (users != null && !users.isEmpty()) {
for (String user : users) {
try {
setBuilder = setBuilder.add(UUID.fromString(user));
} catch (IllegalArgumentException ignored) {
}
}
}
}
} catch (JedisConnectionException e) {
// Redis server has disappeared!
getLogger()
.log(
Level.SEVERE,
"Unable to get connection from pool - did your Redis server go away?",
e);
throw new RuntimeException("Unable to get all players online", e);
}
}
return setBuilder.build();
}
public Set<UUID> getPlayersOnProxy(String server) {
checkArgument(getServerIds().contains(server), server + " is not a valid proxy ID");
try (Jedis jedis = pool.getResource()) {
Set<String> users = jedis.smembers("proxy:" + server + ":usersOnline");
ImmutableSet.Builder<UUID> builder = ImmutableSet.builder();
for (String user : users) {
builder.add(UUID.fromString(user));
}
return builder.build();
}
}
final Set<UUID> getPlayersOnServer(@NonNull String server) {
checkArgument(getProxy().getServers().containsKey(server), "server does not exist");
Collection<String> asStrings =
(Collection<String>)
getServerPlayersScript.eval(
ImmutableList.<String>of(), ImmutableList.<String>of(server));
ImmutableSet.Builder<UUID> builder = ImmutableSet.builder();
for (String s : asStrings) {
builder.add(UUID.fromString(s));
}
return builder.build();
}