}).orElse(value);
    }

    public static Date date(final Long value) {
        if (value == null) {
            return null;
        }
        return new Date(value);
    }

    public static Date parseDate(final String value) {
        return parseDate(value, Constants.DATE_OPTIONAL_TIME);
    }

    public static Date parseDate(final String value, final String format) {

    /*
     * Encode times
     */

    public static int enc_time ( Date date, byte[] dst, int di, int enc ) {
        long t;

        switch ( enc ) {
        case TIME_1970_SEC_32BE:
            return enc_uint32be((int) ( date.getTime() / 1000L ), dst, di);
        case TIME_1970_SEC_32LE:
            return enc_uint32le((int) ( date.getTime() / 1000L ), dst, di);
        case TIME_1904_SEC_32BE:

## Casos de uso

Por ejemplo, imagina que quieres retornar un HTTP status code de "OK" `200` por defecto.

Pero si los datos no existen, quieres crearlos y retornar un HTTP status code de "CREATED" `201`.

Pero aún quieres poder filtrar y convertir los datos que retornas con un `response_model`.

Para esos casos, puedes usar un parámetro `Response`.

## Usar un parámetro `Response`

     * @deprecated Use {@link #MavenBuildTimestamp(Date, Map)} or extract the format and pass it
     *             to {@link #MavenBuildTimestamp(Date, String)} instead.
     */
    @Deprecated
    public MavenBuildTimestamp(Date time, Properties properties) {
        this(time, properties != null ? properties.getProperty(BUILD_TIMESTAMP_FORMAT_PROPERTY) : null);
    }

    public MavenBuildTimestamp(Date time, String timestampFormat) {

## `jsonable_encoder` verwenden

Stellen wir uns vor, Sie haben eine Datenbank `fake_db`, die nur JSON-kompatible Daten entgegennimmt.

Sie akzeptiert zum Beispiel keine `datetime`-Objekte, da die nicht kompatibel mit JSON sind.

Ein `datetime`-Objekt müsste also in einen `str` umgewandelt werden, der die Daten im <a href="https://en.wikipedia.org/wiki/ISO_8601" class="external-link" target="_blank">ISO-Format</a> enthält.

    }

    /**
     * @throws Exception
     */
    @Test
    public void testToCalendar() throws Exception {
        final Date date = new Date();
        final Calendar cal = CalendarConversionUtil.toCalendar(date);
        assertEquals(date, cal.getTime());
    }

    /**
     *
     * @throws Exception
     */
    @Test
    public void testLocalize() throws Exception {

    }

    ReleasedVersion releasedVersion(String version, long date = System.currentTimeMillis()) {
        new ReleasedVersion(version, format.format(new Date(date)))
    }

    ReleasedVersion snapshot(String baseVersion, long date = System.currentTimeMillis()) {
        releasedVersion("${baseVersion}-${format.format(new Date(date))}", date)
    }

    /* Encode times
     */

    public static int enc_time( Date date, byte[] dst, int di, int enc )
    {
        long t;

        switch( enc ) {
            case TIME_1970_SEC_32BE:
                return enc_uint32be( (int)(date.getTime() / 1000L), dst, di );
            case TIME_1970_SEC_32LE:
                return enc_uint32le( (int)(date.getTime() / 1000L), dst, di );
            case TIME_1904_SEC_32BE:

        #; !NotInScope = map:{ $$ALL$$ = list:{ $$VersionNo$$ } }
    }
    ; Date = map:{
        # [Include]
        # Date columns may not be needed
        # to be set these condition-keys basically.
        ; NotEqual = map:{}
        ; InScope = map:{}
        ; NotInScope = map:{}

        # [Exclude]
        # Common columns of Date type may not be needed
        # to be set these condition-keys basically.

	if s3Err != ErrNone {
		return s3Err
	}

	// Extract date, if not present throw error.
	var date string
	if date = req.Header.Get(xhttp.AmzDate); date == "" {
		if date = r.Header.Get(xhttp.Date); date == "" {
			return ErrMissingDateHeader
		}
	}

	// Parse date header.
	t, e := time.Parse(iso8601Format, date)
	if e != nil {
		return ErrMalformedDate
	}

	// Query string.