private void assignLevels(List<Node> topologicalOrder, LevelAssignmentDirection direction) {
for (Node currentNode : topologicalOrder) {
int nextLevel = direction.getNextLevel(currentNode);
List<Node> relatedNodes = direction.getRelatedNodes(currentNode);
if (!relatedNodes.isEmpty()) {
for (Node relatedNode : relatedNodes) {
if (direction.canResetLevel(relatedNode, nextLevel)) {
relatedNode.setLevel(nextLevel);
}
}
}
}
}
