@Test
public void internalDisconnect() {
GraphHopperStorage storage = createGHStorage();
BaseGraph graph = (BaseGraph) storage.getGraph(Graph.class);
EdgeIteratorState iter0 = graph.edge(0, 1, 10, true);
EdgeIteratorState iter2 = graph.edge(1, 2, 10, true);
EdgeIteratorState iter3 = graph.edge(0, 3, 10, true);
EdgeExplorer explorer = graph.createEdgeExplorer();
assertEquals(GHUtility.asSet(3, 1), GHUtility.getNeighbors(explorer.setBaseNode(0)));
assertEquals(GHUtility.asSet(2, 0), GHUtility.getNeighbors(explorer.setBaseNode(1)));
// remove edge "1-2" but only from 1 not from 2
graph.edgeAccess.internalEdgeDisconnect(
iter2.getEdge(), -1, iter2.getBaseNode(), iter2.getAdjNode());
assertEquals(GHUtility.asSet(0), GHUtility.getNeighbors(explorer.setBaseNode(1)));
assertEquals(GHUtility.asSet(1), GHUtility.getNeighbors(explorer.setBaseNode(2)));
// let 0 unchanged -> no side effects
assertEquals(GHUtility.asSet(3, 1), GHUtility.getNeighbors(explorer.setBaseNode(0)));
// remove edge "0-1" but only from 0
graph.edgeAccess.internalEdgeDisconnect(
iter0.getEdge(),
(long) iter3.getEdge() * graph.edgeEntryBytes,
iter0.getBaseNode(),
iter0.getAdjNode());
assertEquals(GHUtility.asSet(3), GHUtility.getNeighbors(explorer.setBaseNode(0)));
assertEquals(GHUtility.asSet(0), GHUtility.getNeighbors(explorer.setBaseNode(3)));
assertEquals(GHUtility.asSet(0), GHUtility.getNeighbors(explorer.setBaseNode(1)));
storage.close();
}
@Override
public final EdgeExplorer createEdgeExplorer() {
return baseGraph.createEdgeExplorer();
}
@Override
public final EdgeExplorer createEdgeExplorer(EdgeFilter filter) {
return baseGraph.createEdgeExplorer(filter);
}