private String fetchNode(int id, UUID shardUuid) {
String node = dao.getNodeIdentifier(id);
if (node == null) {
throw new PrestoException(
RAPTOR_ERROR, format("Missing node ID [%s] for shard: %s", id, shardUuid));
}
return node;
}
private void fetchNodes() {
for (RaptorNode node : dao.getNodes()) {
nodeMap.put(node.getNodeId(), node.getNodeIdentifier());
}
}