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;
}
/**
* 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);
}
