public static boolean nodeRequiresLocalStorage(Settings settings) {
boolean localStorageEnable = Node.NODE_LOCAL_STORAGE_SETTING.get(settings);
if (localStorageEnable == false
&& (Node.NODE_DATA_SETTING.get(settings) || Node.NODE_MASTER_SETTING.get(settings))) {
// TODO: make this a proper setting validation logic, requiring multi-settings validation
throw new IllegalArgumentException("storage can not be disabled for master and data nodes");
}
return localStorageEnable;
}
/** Creates a DiscoveryNode representing the local node. */
public static DiscoveryNode createLocal(
Settings settings, TransportAddress publishAddress, String nodeIdSupplier) {
Map<String, String> attributes = new HashMap<>(Node.NODE_ATTRIBUTES.get(settings).getAsMap());
Set<DiscoveryNode.Role> roles = new HashSet<>();
if (Node.NODE_INGEST_SETTING.get(settings)) {
roles.add(DiscoveryNode.Role.INGEST);
}
if (Node.NODE_MASTER_SETTING.get(settings)) {
roles.add(DiscoveryNode.Role.MASTER);
}
if (Node.NODE_DATA_SETTING.get(settings)) {
roles.add(DiscoveryNode.Role.DATA);
}
return new DiscoveryNode(
Node.NODE_NAME_SETTING.get(settings),
nodeIdSupplier,
publishAddress,
attributes,
roles,
Version.CURRENT);
}
public static boolean isMasterNode(Settings settings) {
return Node.NODE_MASTER_SETTING.get(settings);
}
