br.univali.visao.JGraph.java Source code

Introduction

Here is the source code for br.univali.visao.JGraph.java

Source

package br.univali.visao;

/*
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 * To change this template file, choose Tools | Templates
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 */
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import java.awt.Desktop;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import br.univali.model.minimos_quadrados.Point;

/**
 *
 * @author AlissonSteffens
 */
public class JGraph {

    private List<Point> points;
    private List<Point> calculatedPoints;

    public JGraph(List<Point> points, List<Point> calculatedPoints) {
        this.points = points;
        this.calculatedPoints = calculatedPoints;
    }

    public void showHTML() throws Exception {
        Map<String, List> map1 = new HashMap<>();

        List<Map<String, String>> entrada = new ArrayList<>();

        for (int i = 0; i < this.points.size(); i++) {
            Map<String, String> pontosEntrada = new HashMap<>();
            pontosEntrada.put("x", this.points.get(i).getX().toString());
            pontosEntrada.put("y", this.points.get(i).getY().toString());

            entrada.add(pontosEntrada);
        }

        List<Map<String, String>> saida = new ArrayList<>();

        for (int i = 0; i < this.calculatedPoints.size(); i++) {
            Map<String, String> pontosSaida = new HashMap<>();
            pontosSaida.put("x", this.calculatedPoints.get(i).getX().toString());
            pontosSaida.put("y", this.calculatedPoints.get(i).getY().toString());

            saida.add(pontosSaida);
        }

        map1.put("dados", entrada);
        map1.put("calculados", saida);

        Gson gson = new GsonBuilder().setPrettyPrinting().create();
        String code = gson.toJson(map1);

        String html = lerHtml("./src/br/univali/template/template.html");

        File pastaTemp = new File("./src/br/univali/template");
        File arquivoHtml = getRelatorio();
        File arquivoLog = getJsLog();

        html = html.replace("href=\"./", "href=\"file:///" + getCaminhoCompleto(pastaTemp) + "/");
        html = html.replace("src=\"./log.js\"", "src=\"file:///" + getCaminhoCompleto(arquivoLog) + "\"");
        html = html.replace("src=\"./", "src=\"file:///" + getCaminhoCompleto(pastaTemp) + "/");

        gravarArquivo(arquivoLog, "var log = " + code + ";");
        gravarArquivo(arquivoHtml, html);

        Desktop.getDesktop().open(arquivoHtml);

    }

    private String lerHtml(String arquivo) throws Exception {
        BufferedReader br = new BufferedReader(new FileReader(new File(arquivo)));
        StringBuilder sb = new StringBuilder();
        String linha = null;
        while ((linha = br.readLine()) != null) {
            sb.append(linha);
            sb.append("\n");
        }
        return sb.toString();
    }

    private void gravarArquivo(File arquivo, String conteudo) throws Exception {
        BufferedWriter bw = new BufferedWriter(new FileWriter(arquivo));
        bw.write(conteudo);
        bw.close();
    }

    private String getCaminhoCompleto(File arquivo) {
        try {
            return arquivo.getCanonicalPath().replace("\\", "/");
        } catch (IOException ex) {
            return arquivo.getAbsolutePath().replace("\\", "/");
        }
    }

    private File getTempFolder() {
        File pasta = new File(System.getProperty("user.home", "./"), ".backupSystem");
        pasta.mkdirs();
        return pasta;
    }

    private File getJsLog() {
        return new File(getTempFolder(), "log" + System.currentTimeMillis() + ".js");
    }

    private File getRelatorio() {
        return new File(getTempFolder(), "relatorio" + System.currentTimeMillis() + ".html");
    }

}