package parameter;

import java.io.File;

import java.util.HashMap;

import java.util.Map;

import javax.xml.parsers.DocumentBuilderFactory;

import javax.xml.parsers.DocumentBuilder;

import org.w3c.dom.Document;

import org.w3c.dom.NodeList;

import application.MainInterface_Controller;

import graph.Edge;

import graph.Vertex;

import javafx.beans.property.SimpleDoubleProperty;

import javafx.scene.paint.Color;

import org.w3c.dom.Node;

import org.w3c.dom.Element;

public class LoadFile {

public static void LoadXML(File f, MainInterface_Controller app) {

try {

boolean isOriented = false;

//Import file and parse it

File inputFile = f;

DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();

DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();

Document doc = dBuilder.parse(inputFile);

doc.getDocumentElement().normalize();

// Check graph properties

Element root = doc.getDocumentElement();

if (root.getAttribute("oriented").equals("true")) {

isOriented = true;

app.TypeGraph.setValue("Oriented graph");

}else {

app.TypeGraph.setValue("Non-oriented graph");

}

//Creation of vertex

NodeList VertexList = doc.getElementsByTagName("Vertex");

Map<String, Vertex> vertexByName = new HashMap<String, Vertex>();

for (int vertexNum = 0; vertexNum < VertexList.getLength(); vertexNum++) {

Node nNode = VertexList.item(vertexNum);

Element eElement = (Element) nNode;

Vertex v = new Vertex(new SimpleDoubleProperty(Integer.valueOf(eElement.getAttribute("x"))), new SimpleDoubleProperty(Integer.valueOf(eElement.getAttribute("y"))), app, Color.web(eElement.getAttribute("color")), eElement.getAttribute("name"));

v.draw();

vertexByName.put(eElement.getAttribute("name"), v);

}

//Creation of edge

NodeList EdgeList = doc.getElementsByTagName("Edge");

for (int EdgeNum = 0; EdgeNum < EdgeList.getLength(); EdgeNum++) {

Node nNode = EdgeList.item(EdgeNum);

Element eElement = (Element) nNode;

Edge e = new Edge(vertexByName.get(eElement.getAttribute("Vertex1")), vertexByName.get(eElement.getAttribute("Vertex2")), Integer.valueOf(eElement.getAttribute("weight")), app, Integer.valueOf(eElement.getAttribute("type")));

e.draw();

e.setOriented(isOriented);

}

} catch (Exception e) {

e.printStackTrace();

}

}

}