public int testNodeIterators() {
int foo = 0;
// For each node n, iterating on all edges of n
start = System.currentTimeMillis();
Iterator<Node> nodeIt = g.getNodeIterator();
while (nodeIt.hasNext()) {
Node n = nodeIt.next();
Iterator<Edge> edgeIt = n.getEdgeIterator();
while (edgeIt.hasNext()) {
Edge e = edgeIt.next();
if (e.hasAttribute("foo")) foo++;
}
}
end = System.currentTimeMillis();
measureValues.put(Measures.NODE_EDGE_IT, end - start);
// For each node n, iterating on all entering edges of n
start = System.currentTimeMillis();
nodeIt = g.getNodeIterator();
while (nodeIt.hasNext()) {
Node n = nodeIt.next();
Iterator<Edge> edgeIt = n.getEnteringEdgeIterator();
while (edgeIt.hasNext()) {
Edge e = edgeIt.next();
if (e.hasAttribute("foo")) foo++;
}
}
end = System.currentTimeMillis();
measureValues.put(Measures.NODE_ENTERING_EDGE_IT, end - start);
// For each node n, iterating on all leaving edges of n
start = System.currentTimeMillis();
nodeIt = g.getNodeIterator();
while (nodeIt.hasNext()) {
Node n = nodeIt.next();
Iterator<Edge> edgeIt = n.getLeavingEdgeIterator();
while (edgeIt.hasNext()) {
Edge e = edgeIt.next();
if (e.hasAttribute("foo")) foo++;
}
}
end = System.currentTimeMillis();
measureValues.put(Measures.NODE_LEAVING_EDGE_IT, end - start);
// For each node n, iterating on all neighbors of n
start = System.currentTimeMillis();
nodeIt = g.getNodeIterator();
while (nodeIt.hasNext()) {
Node n = nodeIt.next();
Iterator<Node> neighborIt = n.getNeighborNodeIterator();
while (neighborIt.hasNext()) {
Node neighbor = neighborIt.next();
if (neighbor.hasAttribute("foo")) foo++;
}
}
end = System.currentTimeMillis();
measureValues.put(Measures.NODE_NEIGHBOR_IT, end - start);
// For each node n, iterating on all edges of n using n.getEdge(i)
start = System.currentTimeMillis();
nodeIt = g.getNodeIterator();
while (nodeIt.hasNext()) {
Node n = nodeIt.next();
for (int i = 0; i < n.getDegree(); i++) {
Edge e = n.getEdge(i);
if (e.hasAttribute("foo")) foo++;
}
}
end = System.currentTimeMillis();
measureValues.put(Measures.NODE_GET_EDGE, end - start);
return foo;
}
