mustafa.groovy

// cut and paste or run with ./bin/gremlin.sh -i mustafa.groovy

graph = TinkerGraph.open()
System.out.println("graph open");

g = graph.traversal();
System.out.println("vertex creation started");
        
n = 10000;

for (i = 0; i < n; i++) {
  System.out.print('.');
  graph.addVertex("NodeId", i);
}

k = (n / 2);

System.out.println("edge creation started");
for (j = 0; j < k; j++) {
  v = g.V().has("NodeId", j).next();
  System.out.print('.');

  c1 = g.V().has("NodeId", (j * 2 + 1)).next()
  if (c1) {
    v.addEdge("childs", c1);
  }

  c2 = g.V().has("NodeId", (j * 2 + 1)).next()
  if (c2) {
    v.addEdge("childs", c2);
  }
}

System.out.println("Graph is created.....");

System.out.println("graph is " + graph);
        
fromNode = g.V().has("NodeId", 0).next();
        
System.out.println("Node for calculating its child nodes : " + fromNode.property("NodeId"));
        
st = System.currentTimeMillis();

System.out.println(g.V(fromNode).repeat(out("childs").dedup()).emit().count().next());
//System.out.println(g.V(fromNode).repeat(out("childs")).emit().until(out("childs").count().is(0)).count().next());

System.out.println("time : " + (System.currentTimeMillis() - st) + " milliseconds");


System.out.println("code to retrieve only children node");

st = System.currentTimeMillis();

fromNode = g.V().has("NodeId", 0).next();
        
System.out.println("Node for calculating its child nodes : " + fromNode.property("NodeId"));

System.out.println(g.V(fromNode).repeat(out("childs").dedup()).emit().count().next());

System.out.println("time : " + (System.currentTimeMillis() - st) + " milliseconds");

// these won't print results from the script thus will have to be pasted into the console separately
clockWithResult{ g.V(fromNode).repeat(__.out("childs").dedup()).times(13).emit().count().next()}

// these won't print results from the script thus will have to be pasted into the console separately
clockWithResult{ g.V(fromNode).repeat(out("childs")).times(12).emit().count().next()}

// these won't print results from the script thus will have to be pasted into the console separately
g.V(fromNode).repeat(out("childs")).times(12).emit().count().profile()