private Node fetchNode(Graph g, Object2LongOpenHashMap<Instance> mapping, Instance inst) {
if (mapping.containsKey(inst)) {
return g.getNode(mapping.getLong(inst));
}
return createNode(g, mapping, inst);
}
private Node createNode(Graph g, Object2LongOpenHashMap<Instance> mapping, Instance inst) {
Node node = g.getFactory().newNode(inst);
mapping.put(inst, node.getId());
g.addNode(node);
return node;
}