java.time.OffsetDateTime#getYear ( )源码实例Demo

/**
 * parses a OffsetDateTime to a byte array.
 *
 * @param input the OffsetDateTime to convert
 * @return a byte array
 */
public static byte[] fromOffsetDateTime(Object input) {
  if (input == null) {
    return new byte[]{};
  }

  if (input instanceof OffsetDateTime) {
    OffsetDateTime x = (OffsetDateTime) input;
    if (x == OffsetDateTime.MAX) {
      return "infinity".getBytes(StandardCharsets.UTF_8);
    } else if (x == OffsetDateTime.MIN) {
      return "-infinity".getBytes(StandardCharsets.UTF_8);
    }

    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    try {
      baos.write(x.format(offsetDateTimeFormatter).getBytes(StandardCharsets.UTF_8));

      if (x.getYear() < 0) {
        baos.write(" BC".getBytes(StandardCharsets.UTF_8));
      }

      return baos.toByteArray();
    } catch (IOException e) {
      throw new IllegalArgumentException("couldn't parse input to byte array", e);
    }
  }

  throw new RuntimeException(input.getClass().getName()
      + " can't be converted to byte[] to send as a OffsetDateTime to server");
}
 

void initImageCreationTime(OffsetDateTime offsetDateTime) {
    // Check for incoming arguments
    if (offsetDateTime != null) {
        // set values that make up Standard/Document/ImageCreationTime
        creation_time_present = true;
        creation_time_year    = offsetDateTime.getYear();
        creation_time_month   = offsetDateTime.getMonthValue();
        creation_time_day     = offsetDateTime.getDayOfMonth();
        creation_time_hour    = offsetDateTime.getHour();
        creation_time_minute  = offsetDateTime.getMinute();
        creation_time_second  = offsetDateTime.getSecond();
        creation_time_offset  = offsetDateTime.getOffset();
    }
}
 

public void setDateTime(OffsetDateTime dateTime) {
    if (dateTime.getYear() < 1) {
        throw new InvalidDateTime(String.format("The year: %d falls below the accepted bounds of 0001-9999.", dateTime.getYear()));
    }

    if (dateTime.getYear() > 9999) {
        throw new InvalidDateTime(String.format("The year: %d falls above the accepted bounds of 0001-9999.", dateTime.getYear()));
    }
    this.dateTime = dateTime;
}
 

public static int writeGeneralizedTime(Date time, byte[] out, int offset) {
  OffsetDateTime offsetTime = time.toInstant().atOffset(ZoneOffset.UTC);
  int idx = offset;
  out[idx++] = 0x18;
  out[idx++] = 15;
  // yyyyMMddhhmmssZ
  // year
  int year = offsetTime.getYear();
  out[idx++] = (byte) (0x30 + year / 1000);
  out[idx++] = (byte) (0x30 + year / 100 % 10);
  out[idx++] = (byte) (0x30 + year / 10 % 10);
  out[idx++] = (byte) (0x30 + year % 10);
  // month
  int month = offsetTime.getMonthValue();
  out[idx++] = (byte) (0x30 + month / 10);
  out[idx++] = (byte) (0x30 + month % 10);
  // day
  int day = offsetTime.getDayOfMonth();
  out[idx++] = (byte) (0x30 + day / 10);
  out[idx++] = (byte) (0x30 + day % 10);
  // hour
  int hour = offsetTime.getHour();
  out[idx++] = (byte) (0x30 + hour / 10);
  out[idx++] = (byte) (0x30 + hour % 10);
  // minute
  int minute = offsetTime.getMinute();
  out[idx++] = (byte) (0x30 + minute / 10);
  out[idx++] = (byte) (0x30 + minute % 10);
  // second
  int second = offsetTime.getSecond();
  out[idx++] = (byte) (0x30 + second / 10);
  out[idx++] = (byte) (0x30 + second % 10);
  out[idx++] = 'Z';
  return idx - offset;
}
 

int getYear(OffsetDateTime offsetDateTime) {
    return offsetDateTime.getYear();
}