Exemplo n.º 1
0
  public static <V, E> Neo4jTopology loadTopology(Neo4jWorkspaceSettings settings)
      throws Exception {
    String db = DatabaseConfiguration.readDatabase(settings);
    Logger.getLogger(Neo4jWorkspace.class).info("using db " + db);

    // Get neo4j stuffs
    GraphDatabaseFactory factory = new GraphDatabaseFactory();
    GraphDatabaseService database = factory.newEmbeddedDatabase(db);
    GlobalGraphOperations operation = GlobalGraphOperations.at(database);

    ViewsManager views = new ViewsManager();
    views.load(settings);

    // Setup graph model
    Neo4jGraphModelIO gio = new Neo4jGraphModelIO();
    gio.read(SimpleFile.read(settings.getModelPath()));
    Neo4jGraphModel typeModel = gio.getGraphModel();

    // Build graph
    INeo4jGraphReader r = views.getFirst().getFilter();
    Graph<IPropertyNode, IPropertyEdge> graph = r.read(operation, typeModel);
    Logger.getLogger(Neo4jWorkspace.class)
        .info("filtered graph has " + graph.getVertexCount() + " nodes using db " + db);

    // Build topology using graph typing model
    String topologyName = views.getFirst().getTopologyName();
    Neo4jTopologyFactory tfact = new Neo4jTopologyFactory();
    Neo4jTopology topology = tfact.newTopology(topologyName, graph, typeModel);

    return topology;
  }
Exemplo n.º 2
0
  /**
   * Build full Neo4jWorkspace involving reading files given by settings:
   *
   * <ul>
   *   <li>neo4j database
   *   <li>view
   *   <li>graph model
   *   <li>projection
   * </ul>
   *
   * and build topology & geometrical model according to Neo4j factories
   *
   * @param settings
   * @throws Exception
   */
  public Neo4jWorkspace(Neo4jWorkspaceSettings settings) throws Exception {
    String db = DatabaseConfiguration.readDatabase(settings);
    Logger.getLogger(Neo4jWorkspace.class).info("using db " + db);

    // Get neo4j stuffs
    GraphDatabaseFactory factory = new GraphDatabaseFactory();
    database = factory.newEmbeddedDatabase(db);
    operation = GlobalGraphOperations.at(database);

    views = new ViewsManager();
    views.load(settings);
    layoutML = views.getFirst().getLayout();

    // Setup graph model
    Neo4jGraphModelIO gio = new Neo4jGraphModelIO();
    gio.read(SimpleFile.read(settings.getModelPath()));
    Neo4jGraphModel typeModel = gio.getGraphModel();

    // Build graph
    INeo4jGraphReader r = views.getFirst().getFilter();
    Graph<IPropertyNode, IPropertyEdge> graph = r.read(operation, typeModel);
    Logger.getLogger(Neo4jWorkspace.class)
        .info("filtered graph has " + graph.getVertexCount() + " nodes using db " + db);

    // Build topology using graph typing model
    String topologyName = views.getFirst().getTopologyName();
    Neo4jTopologyFactory tfact = new Neo4jTopologyFactory();
    topology = tfact.newTopology(topologyName, graph, typeModel);

    // Edit topology according to dataprism
    Dataprism dp = loadDataprism(settings);
    if (dp != null) ((Neo4jTopology) topology).edit().apply(dp);

    // Build layout model
    modelFactory = new Neo4jModelFactory(gio.getGraphModel());
    model = (IHierarchicalNodeModel) modelFactory.getLayoutModel(topology);
    edgeModel = model.getEdgeModel();
    applyLayoutMLConfiguration(model, layoutML);

    // Build layout
    layoutFactory = new Neo4jLayoutFactory(typeModel);
    if (layoutML != null) {
      Map<String, String> mapping = extractModelLayoutMapping(layoutML);
      layoutFactory.setModelLayoutMapping(mapping);
    }

    layout = layoutFactory.getLayout(model);
    layout.getEdgeLayout().setEdgePostProcess(null);

    // finalize workspace
    annotationModel = new AnnotationModel();
    metadata = null;
    setName(settings.getName());
    loadMapIfExist();

    this.configuration = new ConfigurationFacade(this);
  }