Riassunti

Nella cartella src/main/java andremo ad elencare i file di seguito, mentre nella cartella src/main/resources package application troveremo l'interfaccia grafica.

PACKAGE application

Per quanto riguarda il file Main.java:

package application;

public class Main {
    public static void main(String[] args) {
        MainApplication.main(args);
    }
}

Per quanto riguarda il file MainApplication.java:

package application;

import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.layout.AnchorPane;
import javafx.stage.Stage;

public class MainApplication extends Application {
    @Override
    public void start(Stage primaryStage) throws Exception {
        FXMLLoader loader = new FXMLLoader(getClass().getResource("/application/Main.fxml"));
        AnchorPane root = (AnchorPane) loader.load();
        Scene scene = new Scene(root, 600, 600);
        primaryStage.setScene(scene);
        primaryStage.setTitle("Report vaccinazioni");
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}

Per quanto riguarda il file DatiVaccinazioni.java:

package application;

public class DatiVaccinazioni implements Comparable<DatiVaccinazioni>{
    private String data;
    private String regione;
    private int primaDose;
    private int secondaDose;

    public DatiVaccinazioni(String data, String regione, int primaDose, int secondaDose) {
        super();
        this.data = data;
        this.regione = regione;
        this.primaDose = primaDose;
        this.secondaDose = secondaDose;
    }

    public String getData() {
        return data;
    }

    public String getRegione() {
        return regione;
    }

    public int getPrimaDose() {
        return primaDose;
    }

    public int getSecondaDose() {
        return secondaDose;
    }

    @Override
    public int compareTo(DatiVaccinazioni o) {
        return data.compareTo(o.data);
    }
}

Per quanto riguarda il file DataService.java:

package application;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import javafx.concurrent.Service;
import javafx.concurrent.Task;

public class DataService extends Service<List<DatiVaccinazioni>> {
    private final String dati = "https://raw.githubusercontent.com/italia/covid19-opendata-vaccini/
        master/dati/somministrazioni-vaccini-summary-latest.csv";

    @Override
    protected Task<List<DatiVaccinazioni>> createTask() {
        return new Task<List<DatiVaccinazioni>>() {

            @Override
            protected List<DatiVaccinazioni> call() throws Exception {
                URL csvDati = new URL(dati);
                BufferedReader reader = new BufferedReader(new InputStreamReader(csvDati.openStream()));
                String line = reader.readLine();
                line = reader.readLine();
                ArrayList<DatiVaccinazioni> l = new ArrayList<DatiVaccinazioni>();
                while(line != null) {
                    String[] res = line.split(",");
                    l.add(new DatiVaccinazioni(res[0], res[10], Integer.parseInt(res[5]), Integer.parseInt(res[6])));
                    line = reader.readLine();
                }
                reader.close();
                return l;
            }
        };
    }
}

PACKAGE application.controller

Per quanto riguarda il file MainController.java:

package application.controller;

import java.util.Collections;
import java.util.List;
import application.DataService;
import application.DatiVaccinazioni;
import javafx.concurrent.WorkerStateEvent;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.fxml.FXML;
import javafx.scene.chart.BarChart;
import javafx.scene.chart.CategoryAxis;
import javafx.scene.chart.NumberAxis;
import javafx.scene.chart.XYChart;
import javafx.scene.control.Button;
import javafx.scene.control.DatePicker;
import javafx.scene.control.TextField;
import javafx.scene.layout.BorderPane;

public class MainController {
    @FXML
    private BorderPane borderPane;

    @FXML
    private Button processButton;

    @FXML
    private DatePicker data;

    @FXML
    private TextField regione;

    private DataService service = new DataService();

    @FXML
    void process(ActionEvent event) {
        service.restart();
    }

    @FXML
    void initialize() {
        service.setOnSucceeded(new EventHandler<WorkerStateEvent>() {
            @Override
            public void handle(WorkerStateEvent event) {
                if(data.getValue() == null)
                    return;
                int year = data.getValue().getYear();
                int month = data.getValue().getMonthValue();
                String m = "" + month;
                if(month < 10)
                    m = "0" + month;
                int day = data.getValue().getDayOfMonth();
                String dd = "" + day;
                if(day < 10)
                    dd = "0" + day;
                String date = year + "-" + m + "-" + dd;

                CategoryAxis xAxis = new CategoryAxis();
                NumberAxis yAxis = new NumberAxis();
                BarChart<String, Number> chart = new BarChart<String, Number>(xAxis, yAxis);
                chart.setTitle("Somministrazioni vaccini - Regione: " + regione.getText());
                xAxis.setLabel("Data");
                yAxis.setLabel("Dosi");

                @SuppressWarnings("unchecked")
                List<DatiVaccinazioni> result = (List<DatiVaccinazioni>) event.getSource().getValue();
                XYChart.Series<String, Number> primaDose = new XYChart.Series<String, Number>();
                primaDose.setName("Prima dose");
                XYChart.Series<String, Number> secondaDose = new XYChart.Series<String, Number>();
                secondaDose.setName("Seconda dose");

                Collections.sort(result);
                for(DatiVaccinazioni d : result) {
                    if(d.getRegione().equalsIgnoreCase(regione.getText()) && d.getData().compareTo(date) >= 0) {
                        primaDose.getData().add(new XYChart.Data<String, Number>(d.getData(), d.getPrimaDose()));
                        secondaDose.getData().add(new XYChart.Data<String, Number>(d.getData(), d.getSecondaDose()));
                    }
                }
                chart.getData().add(primaDose);
                chart.getData().add(secondaDose);
                borderPane.setCenter(chart);
            }
        });

        service.setOnFailed(new EventHandler<WorkerStateEvent>() {
            @Override
            public void handle(WorkerStateEvent event) {
                System.err.println(event.getSource().getException().getMessage());
            }

        });
    }
}