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;
}
}
static boolean enable(final Host host) {
if (!host.hasDatabase() || Bootstrap.isShuttingDown()) {
return false;
} else if (!Hosts.contains(host.getGroupsId())) {
Hosts.remove(host.getGroupsId());
return false;
} else {
if (host.isLocalHost()) {
if (SyncState.SYNCING.set()) {
try {
runDbStateChange(ActivateHostFunction.INSTANCE.apply(host));
SyncState.SYNCED.set();
return true;
} catch (LockTimeoutException ex) {
SyncState.NOTSYNCED.set();
return false;
} catch (Exception ex) {
SyncState.NOTSYNCED.set();
LOG.error(ex);
Logs.extreme().error(ex, ex);
return false;
}
} else if (!SyncState.SYNCING.isCurrent()) {
try {
runDbStateChange(ActivateHostFunction.INSTANCE.apply(host));
return true;
} catch (LockTimeoutException ex) {
return false;
} catch (Exception ex) {
LOG.error(ex);
Logs.extreme().error(ex, ex);
return false;
}
} else {
try {
runDbStateChange(ActivateHostFunction.INSTANCE.apply(host));
SyncState.SYNCED.set();
return true;
} catch (LockTimeoutException ex) {
SyncState.NOTSYNCED.set();
return false;
} catch (Exception ex) {
SyncState.NOTSYNCED.set();
LOG.error(ex, ex);
return false;
}
}
} else if (!ActiveHostSet.ACTIVATED.get().contains(host.getDisplayName())) {
try {
runDbStateChange(ActivateHostFunction.INSTANCE.apply(host));
return true;
} catch (LockTimeoutException ex) {
return false;
} catch (Exception ex) {
Logs.extreme().debug(ex);
ActivateHostFunction.rollback(host, ex);
return false;
}
} else {
return ActiveHostSet.ACTIVATED.get().contains(host.getDisplayName());
}
}
}