poved/src/data/Bitmap.java @ cbd6adb3

package data;

import java.time.LocalDate;
import java.time.ZoneId;
import java.time.temporal.ChronoUnit;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;

//------ TO-DO LIST ----
// TODO: 04.05.2019 JavaDoc - Dokumentace

/**
 *
 * Trida uchovavajici informace a umoznujici praci s bitmapou
 *
 * @author  Daniel Stus, Marek Sobota, Lukas Scurko, Jan Jirman
 * @version 0.5
 *
 */
public class Bitmap {

    //-------------- Atributy --------------/

    /** Atribut -  Datum zacatku obdobi */
    private Calendar dateFrom;

    /** Atribut -  Datum konce obdobi */
    private Calendar dateTo;

    /** Atribut s cislem linky pro kterou je generovana bitmapa */
    private String lineNumber;

    /** Atribut s cislem spoje linky pro kterou je generovana bitmapa */
    private String connectionNumber;

    /** Pole uchovavajici bitmapu */
    private int[] bitmap;

    /** Atribut uchovavajici hodnotu dne (ktery den v tydnu odpovida) pocatku obdobi */
    private int firstDayOfWeek;


    //-------------- Konstruktor -------------/

    /**
     * Konstruktor incializuje a nastavuje důležité parametry tridy (@code Bitmap)
     *
     * @param dateFrom Datum zacatku obdobi
     * @param dateTo Datum konce obdobi
     * @param lineNumber Cislo linky
     * @param connectionNumber Cislo spoje dane linky
     */
    public Bitmap(Calendar dateFrom, Calendar dateTo, String lineNumber, String connectionNumber) {
        this.dateFrom = dateFrom;
        this.dateTo = dateTo;
        this.lineNumber = lineNumber;
        this.connectionNumber = connectionNumber;
        this.bitmap = new int[(int) getDateRange()];
        this.firstDayOfWeek = dateFrom.get(Calendar.DAY_OF_WEEK);
    }


    //----------------- Metody ----------------/

    /**
     * Metda vrací počet dní uživatelem zvoleného období
     *
     * @return Počet dní v uživatelem zvoleném období (rozmezí)
     */
    public long getDateRange() {
        LocalDate from = this.dateFrom.toInstant().atZone(ZoneId.systemDefault()).toLocalDate();
        LocalDate to = this.dateTo.toInstant().atZone(ZoneId.systemDefault()).toLocalDate();

        long noOfDaysBetween = ChronoUnit.DAYS.between(from, to);
        return noOfDaysBetween+1;
    }

    public long getDatePosition(Calendar date) {
        LocalDate from = this.dateFrom.toInstant().atZone(ZoneId.systemDefault()).toLocalDate();
        LocalDate to = date.toInstant().atZone(ZoneId.systemDefault()).toLocalDate();

        long datePosition = ChronoUnit.DAYS.between(from, to);
        return datePosition+1;
    }


    public void setWorkdays(int value) {
        value = validateValue(value);
        int dayOfWeek = this.dateFrom.get(Calendar.DAY_OF_WEEK);

        for (int i = 0; i < this.bitmap.length; i++) {
            if (dayOfWeek != 7 && dayOfWeek != 1) {
                this.bitmap[i] = value;
            }

            dayOfWeek++;
            if (dayOfWeek == 8) dayOfWeek = 1;
        }
    }

    public void setSundaysAndHolidays(int value) {
        value = validateValue(value);
        int dayOfWeek = firstDayOfWeek;

        for (int i = 0; i < this.bitmap.length; i++) {
            if (dayOfWeek != 7) {
                this.bitmap[i] = value;
            }

            dayOfWeek++;
            if (dayOfWeek == 8) dayOfWeek = 1;
        }
    }

    public void setDay(Calendar day, int value) {
        value = validateValue(value);
        int dayPosition = (int) getDatePosition(day);

        bitmap[dayPosition] = value;
    }


    public void setOneDayOnly(Calendar day) {
        fillWithZeros();
        int dayPosition = (int) getDatePosition(day);

        bitmap[dayPosition] = 1;
    }

    public void setDaysInRange(Calendar from, Calendar to, int value) {
        value = validateValue(value);
        int dayPositionFrom = (int) getDatePosition(from);
        int dayPositionTo = (int) getDatePosition(to);

        for (int i = dayPositionFrom; i < dayPositionTo; i++) {
            bitmap[i] = value;
        }

    }

    public void setDaysInWeek(int dayNumber, int value) {
        value = validateValue(value);
        int dayOfWeek = firstDayOfWeek;

        for (int i = 0; i < this.bitmap.length; i++) {
            if (dayOfWeek == dayNumber) {
                this.bitmap[i] = value;
            }

            dayOfWeek++;
            if (dayOfWeek == 8) dayOfWeek = 1;
        }
    }


    // TODO: 04.05.2019 ?? Sude/Liche -- Platí pro víkendy ?? 
    public void setWeeks(int value, int remainder) {
        value = validateValue(value);
        int dayOfWeek =  this.dateFrom.get(Calendar.DAY_OF_WEEK);
        int weekNumber = this.dateFrom.get(Calendar.WEEK_OF_MONTH);

        for (int i = 0; i < this.bitmap.length; i++) {
            if ((weekNumber % 2)==remainder) {
                this.bitmap[i] = value;
            }

            dayOfWeek++;
            if (dayOfWeek == 8) dayOfWeek = 1;
            if (dayOfWeek == 2) weekNumber++;

        }
    }


    public void setWeeksRange(Calendar from, Calendar to, int value, int remainder) {
        value = validateValue(value);
        int dayOfWeek =  from.get(Calendar.DAY_OF_WEEK);
        int weekNumber = from.get(Calendar.WEEK_OF_MONTH);
        int dayPositionFrom = (int) getDatePosition(from);
        int dayPositionTo = (int) getDatePosition(to);

        for (int i = dayPositionFrom; i < dayPositionTo; i++) {
            if ((weekNumber % 2)==remainder) {
                this.bitmap[i] = value;
            }

            dayOfWeek++;
            if (dayOfWeek == 8) dayOfWeek = 1;
            if (dayOfWeek == 2) weekNumber++;
        }

    }

    // TODO: 04.05.2019 Kombinace (Sudé/Liché týdny + Časové kódy) 

    /**
     * Metoda naplní (přemaže) bitmapu nulami
     */
    public void fillWithZeros() {
        Arrays.fill(this.bitmap, 0);
    }

    /**
     * Metoda overuje spravnost zadane hodnoty
     * - do bitmapy lze zadat pouze 1 nebo 0
     * - v pripade ze uzivatel zada cislo vetsi nez jedna metoda vrati jednotku
     * - v pripade ze uzivatel zada cislo mensi nez nula metoda vrati nulu
     *
     * @param value Uzivatelem zadana hodnota
     * @return Nova (spravna hodnota) ukladajici se do bitmapy
     */
    public static int validateValue(int value) {
        if (value < 0) value = 0;
        else if (value > 0) value = 1;
        else return value;
        return value;
    }

    public Calendar getDateFrom() {
        return dateFrom;
    }

    public void setDateFrom(Calendar dateFrom) {
        this.dateFrom = dateFrom;
    }

    public Calendar getDateTo() {
        return dateTo;
    }

    public void setDateTo(Calendar dateTo) {
        this.dateTo = dateTo;
    }

    public String getLineNumber() {
        return lineNumber;
    }

    public void setLineNumber(String lineNumber) {
        this.lineNumber = lineNumber;
    }

    public String getConnectionNumber() {
        return connectionNumber;
    }

    public void setConnectionNumber(String connectionNumber) {
        this.connectionNumber = connectionNumber;
    }

    public int[] getBitmap() {
        return bitmap;
    }

    public void setBitmap(int[] bitmap) {
        this.bitmap = bitmap;
    }

    public int getFirstDayOfWeek() {
        return firstDayOfWeek;
    }

    public void setFirstDayOfWeek(int firstDayOfWeek) {
        this.firstDayOfWeek = firstDayOfWeek;
    }

    @Override
    public String toString() {
        return Arrays.toString(this.bitmap);
    }


    /**
     *
     * hlavni metoda pro ozkouseni funkcnosti {@code Bitmap}
     *-issue #7374
     *
     * @param args parametry programu
     */
    public static void main(String[] args) {

        Calendar dateFrom = Calendar.getInstance();
        Calendar dateTo = Calendar.getInstance();
        dateFrom.setTime(new Date(2019-1900, 4, 1)); // -- Jen pro testování Deprecated --
        dateTo.setTime(new Date(2019-1900, 4, 31)); // rok udáván od 1900, měsíc se počítá od 0


        Bitmap bitmap = new Bitmap(dateFrom, dateTo, "143440", "1");


        // ------------- KONTROLNÍ VÝPISY -----------------
        System.out.println("------------- KONTROLNÍ VÝPISY -----------------");
        System.out.println("Linka: "+ bitmap.getLineNumber()+" - Spoj:"+bitmap.getConnectionNumber());
        System.out.println("Datum: od: " + bitmap.getDateFrom().getTime() + " | do: " + bitmap.getDateTo().getTime());
        System.out.println("První den je: "+bitmap.getFirstDayOfWeek() + " (1 - Neděle; 2 - Pondělí; 3 - Úterý; 4 - Středa; 5 - Čtvrtek; 6 - Pátek; 7 - Sobota)");
        System.out.println("Počet dní v rozmezí: " + bitmap.getDateRange());
        System.out.println(bitmap.toString());

        //Jede pouze v pracovní dny
        bitmap.setWorkdays(1);
        System.out.println("\nJede v pracovní dny:");
        System.out.println(bitmap.toString());

        // Kontrola přemazání
        System.out.println("\nKontrola přemazání:");
        bitmap.fillWithZeros();
        System.out.println(bitmap.toString());

        //Nastavit pouze Pondělky - atribut 2
        System.out.println("\nJede každé pondělí:");
        bitmap.setDaysInWeek(2, 1);
        System.out.println(bitmap.toString());

        //přemazání
        bitmap.fillWithZeros();

        //Nastavit liché týdny (zbytek(remainder) 1 - liché)
        System.out.println("\nLiché týdny:");
        bitmap.setWeeks(1, 1);
        System.out.println(bitmap.toString());




    }


}