SystemTimeUtilspublic class SystemTimeUtils extends Object | A helper class for dealing with SystemTime Structs, as defined at
http://msdn.microsoft.com/library/en-us/sysinfo/base/systemtime_str.asp .
Discrepancies between Calendar and SYSTEMTIME:
- that January = 1 in SYSTEMTIME, 0 in Calendar.
- that the day of the week (0) starts on Sunday in SYSTEMTIME, and Monday in Calendar
It is also the case that this does not store the timezone, and no... it is not
stored as UTC either, but rather the local system time (yuck.) |
| Methods Summary |
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| public static java.util.Date | getDate(byte[] data)Get the date found in the byte array, as a java Data object
return getDate(data,0);
| | public static java.util.Date | getDate(byte[] data, int offset)Get the date found in the byte array, as a java Data object
Calendar cal = new GregorianCalendar();
cal.set(Calendar.YEAR, LittleEndian.getShort(data,offset));
cal.set(Calendar.MONTH, LittleEndian.getShort(data,offset+2)-1);
// Not actually needed - can be found from day of month
//cal.set(Calendar.DAY_OF_WEEK, LittleEndian.getShort(data,offset+4)+1);
cal.set(Calendar.DAY_OF_MONTH, LittleEndian.getShort(data,offset+6));
cal.set(Calendar.HOUR_OF_DAY, LittleEndian.getShort(data,offset+8));
cal.set(Calendar.MINUTE, LittleEndian.getShort(data,offset+10));
cal.set(Calendar.SECOND, LittleEndian.getShort(data,offset+12));
cal.set(Calendar.MILLISECOND, LittleEndian.getShort(data,offset+14));
return cal.getTime();
| | public static void | storeDate(java.util.Date date, byte[] dest)Convert the supplied java Date into a SystemTime struct, and write it
into the supplied byte array.
storeDate(date, dest, 0);
| | public static void | storeDate(java.util.Date date, byte[] dest, int offset)Convert the supplied java Date into a SystemTime struct, and write it
into the supplied byte array.
Calendar cal = new GregorianCalendar();
cal.setTime(date);
LittleEndian.putShort(dest, offset + 0, (short) cal.get(Calendar.YEAR));
LittleEndian.putShort(dest, offset + 2, (short)(cal.get(Calendar.MONTH) + 1));
LittleEndian.putShort(dest, offset + 4, (short)(cal.get(Calendar.DAY_OF_WEEK)-1));
LittleEndian.putShort(dest, offset + 6, (short) cal.get(Calendar.DAY_OF_MONTH));
LittleEndian.putShort(dest, offset + 8, (short) cal.get(Calendar.HOUR_OF_DAY));
LittleEndian.putShort(dest, offset + 10,(short) cal.get(Calendar.MINUTE));
LittleEndian.putShort(dest, offset + 12,(short) cal.get(Calendar.SECOND));
LittleEndian.putShort(dest, offset + 14,(short) cal.get(Calendar.MILLISECOND));
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