Esempio n. 1
0
  public BenchPerformance(String fileName, Graph graph) {
    r = Runtime.getRuntime();
    forceGC();
    long used1 = r.totalMemory() - r.freeMemory();
    g = graph;
    try {
      g.read(fileName);
    } catch (Exception e) {
      e.printStackTrace();
      System.exit(0);
    }
    System.out.println(
        "Graph read: " + g.getNodeCount() + " nodes and " + g.getEdgeCount() + " edges");

    for (Node n : g) n.clearAttributes();
    for (Edge e : g.getEachEdge()) e.clearAttributes();
    forceGC();
    long used2 = r.totalMemory() - r.freeMemory();
    measureValues = new EnumMap<Measures, Long>(Measures.class);
    measureValues.put(Measures.MEMORY, used2 - used1);

    nodeIds = new ArrayList<String>(g.getNodeCount());
    for (Node n : g) nodeIds.add(n.getId());
    // sort them to be sure that we always work with the same nodes
    Collections.sort(nodeIds);

    edgeIds = new ArrayList<String>(g.getEdgeCount());
    for (Edge e : g.getEachEdge()) edgeIds.add(e.getId());
    Collections.sort(edgeIds);
  }
Esempio n. 2
0
  /**
   * Clone a given graph with same node/edge structure and same attributes.
   *
   * @param g the graph to clone
   * @return a copy of g
   */
  public static Graph clone(Graph g) {
    Graph copy;

    try {
      Class<? extends Graph> cls = g.getClass();
      copy = cls.getConstructor(String.class).newInstance(g.getId());
    } catch (Exception e) {
      logger.warning(String.format("Cannot create a graph of %s.", g.getClass().getName()));
      copy = new AdjacencyListGraph(g.getId());
    }

    copyAttributes(g, copy);

    for (int i = 0; i < g.getNodeCount(); i++) {
      Node source = g.getNode(i);
      Node target = copy.addNode(source.getId());

      copyAttributes(source, target);
    }

    for (int i = 0; i < g.getEdgeCount(); i++) {
      Edge source = g.getEdge(i);
      Edge target =
          copy.addEdge(
              source.getId(),
              source.getSourceNode().getId(),
              source.getTargetNode().getId(),
              source.isDirected());

      copyAttributes(source, target);
    }

    return copy;
  }
  public void execute() {
    // Toolkit.c
    final Graph graph = new SingleGraph("roberto");
    graph.setStrict(false);
    graph.addAttribute("ui.stylesheet", "node.important {fill-color: red;}");
    graph.addAttribute("ui.quality");
    graph.addAttribute("ui.antialias");

    BaseGenerator gen = null;

    // Between 1 and 3 new links per node added.
    // gen = new BarabasiAlbertGenerator(1);//talvez
    // gen = new DorogovtsevMendesGenerator();//talvez

    // gen = new PointsOfInterestGenerator();//gera desconexo
    // gen = new PreferentialAttachmentGenerator();//parece com lobster
    // gen = new RandomEuclideanGenerator(2);//+-
    // gen = new RandomFixedDegreeDynamicGraphGenerator(200, 9.0,
    // 0.5);//acho que não
    // gen = new WattsStrogatzGenerator(200, 4, 0.1);//+-

    // gen = new ClusterGeneratorOld(200);

    int n = 100;
    // gen = new LobsterGenerator(5, 5);// sim
    // gen = new CustomLobsterGenerator(500, 3, 5);// sim
    // gen = new CustomFlowerSnarkGenerator(100);//sim
    //		 gen = new ClusterGenerator(n, 3, 3); //sim
    // gen = new CustomGridGenerator(110, true, 0.9F, 15, 5);//usado para
    // gen = new WattsStrogatzGenerator(20, 10, 0.1);//pode ser mas tem que
    // rodar 2 vezes

    // gen = new BarabasiAlbertGenerator(1);//talvez - parecido com lobster
    // gen = new DorogovtsevMendesGenerator();//talvez

    gen.setRandomSeed(12345);
    gen.addSink(graph);
    gen.begin();
    while (gen.nextEvents()) ;
    gen.end();
    System.out.println("" + graph.getNodeCount() + " " + graph.getEdgeCount());

    // gen.configureNodes(graph);
    // System.out.println("Amount of important: " + gen.countImportant);

    Viewer viewer = graph.display(true);
    // Layout layoutAlgorithm = new SpringBox();
    // viewer.enableAutoLayout(layoutAlgorithm);
    viewer.setCloseFramePolicy(Viewer.CloseFramePolicy.HIDE_ONLY);

    ViewerListener vl = new MyViewListener(graph, n, 2, gen);
    ViewerPipe fromViewer = viewer.newViewerPipe();
    fromViewer.addViewerListener(vl);
    fromViewer.addSink(graph);

    while (loop) {
      fromViewer.pump(); // or fromViewer.blockingPump();

      try {
        Thread.sleep(100);
      } catch (InterruptedException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
      }
    }

    // try {
    // Thread.sleep(10000);
    // } catch (InterruptedException e1) {
    // // TODO Auto-generated catch block
    // e1.printStackTrace();
    // }
  }