public static void check() {
for (String ctx : PersistenceContexts.list()) {
try {
DatabaseClusterMBean db = lookup(ctx, TimeUnit.SECONDS.toMillis(5));
for (String host : db.getactiveDatabases()) {
Host hostEntry = Hosts.lookup(host);
if (hostEntry == null) {
disable(host);
} else if (!Hosts.contains(hostEntry.getGroupsId())) {
Hosts.remove(host); // GRZE: this will clean up group state and de-activate db.
}
}
} catch (NoSuchElementException ex) {
LOG.error(ex, ex);
}
return;
}
}
private static Set<String> listDatabases(
final String clusterName, final boolean active, final Optional<Integer> weight) {
final Set<String> databases = Sets.newLinkedHashSet();
try {
final DatabaseClusterMBean cluster = lookup(clusterName, 0);
final Iterable<String> databaseIds =
active ? cluster.getactiveDatabases() : cluster.getinactiveDatabases();
for (final String databaseId : databaseIds)
try {
final DriverDatabaseMBean database = lookupDatabase(clusterName, databaseId);
if (!weight.isPresent() || database.getweight() == weight.get()) {
databases.add(databaseId);
}
} catch (NoSuchElementException e) {
// ignore database
}
} catch (NoSuchElementException e) {
// no databases
} catch (Exception e) {
LOG.error(e, e);
}
return databases;
}