Example usage for java.util TimeZone setRawOffset

Introduction

In this page you can find the example usage for java.util TimeZone setRawOffset.

Prototype

public abstract void setRawOffset(int offsetMillis);

Source Link

Document

Sets the base time zone offset to GMT.

Usage

From source file:Main.java

public static void main(String args[]) {

    TimeZone tzone = TimeZone.getDefault();

    // set raw offset
    tzone.setRawOffset(10000);

    // checking offset value
    System.out.println("Offset value is :" + tzone.getRawOffset());
}

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From source file:Main.java

/**
 * Converts an XMLGregorianCalendar to a Date.
 *
 * @param xmlDate/*from   w  w w. ja v  a  2 s.  c  o  m*/
 *            XMLGregorianCalendar to convert.
 * @return corresponding date object.
 */
public static Date getDate(final XMLGregorianCalendar xmlDate) {
    // TODO: is this equivalent to getDate(String) processing above??

    // start with UTC, i.e. no daylight savings time.
    TimeZone timezone = TimeZone.getTimeZone("GMT");

    // adjust timezone to match xmldate
    int offsetMinutes = xmlDate.getTimezone();
    if (offsetMinutes != DatatypeConstants.FIELD_UNDEFINED) {
        timezone.setRawOffset(
                // convert minutes to milliseconds
                offsetMinutes * 60 // seconds per minute
                        * 1000 // milliseconds per second
        );
    }

    // use calendar so parsed date will be UTC
    Calendar calendar = Calendar.getInstance(timezone);
    calendar.clear();
    calendar.set(xmlDate.getYear(),
            // xmlcalendar is 1 based, calender is 0 based
            xmlDate.getMonth() - 1, xmlDate.getDay(), xmlDate.getHour(), xmlDate.getMinute(),
            xmlDate.getSecond());
    Date date = calendar.getTime();
    int millis = xmlDate.getMillisecond();
    if (millis != DatatypeConstants.FIELD_UNDEFINED) {
        calendar.setTimeInMillis(calendar.getTimeInMillis() + millis);
    }

    return date;
}

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From source file:org.obm.push.protocol.data.TZDecoder.java

public TimeZone decode(String b64) {
    // Doc : [MS-ASDTYPE] 2.7 TimeZone
    // Doc about types :
    // http://msdn.microsoft.com/fr-fr/library/bb469811.aspx
    // 1 LONG = 4 bytes
    // 1 WCHAR = 2 bytes
    // 1 SYSTEMTIME = 8 SHORT = 8 X 2 bytes
    // TOTAL TIMEZONE STRUCT must be 172 bytes

    byte tzstruct[] = Base64.decodeBase64(b64);

    ByteBuffer bfBias = ByteBuffer.wrap(tzstruct, 0, 4);
    // NOT YET USED
    ////from  ww w . jav a  2  s  .  co  m
    // ByteBuffer bfStandardName = ByteBuffer.wrap(tzstruct, 4, 64);
    // ByteBuffer bfStandardDate = ByteBuffer.wrap(tzstruct, 68, 16);
    // ByteBuffer bfStandardBias = ByteBuffer.wrap(tzstruct, 84, 4);
    // ByteBuffer bfDaylightName = ByteBuffer.wrap(tzstruct, 88, 64);
    // ByteBuffer bfDaylightDate = ByteBuffer.wrap(tzstruct, 152, 16);
    // ByteBuffer bfDaylightBias = ByteBuffer.wrap(tzstruct, 168, 4);

    bfBias.order(ByteOrder.LITTLE_ENDIAN);
    int bias = bfBias.getInt(); // Java integer is 4-bytes-long

    // NOT YET USED
    //
    // bfStandardBias.order(ByteOrder.LITTLE_ENDIAN);
    // int standardBias = bfStandardBias.getInt();
    //      
    // bfDaylightBias.order(ByteOrder.LITTLE_ENDIAN);
    // int daylightBias = bfDaylightBias.getInt();

    TimeZone timezone = TimeZone.getDefault();
    timezone.setRawOffset(bias * 60 * 1000);

    String timezones[] = TimeZone.getAvailableIDs(bias * 60 * 1000);
    if (timezones.length > 0) {
        timezone = TimeZone.getTimeZone(timezones[0]);
    }

    // USEFUL DEBUG LINES
    //
    // StringBuffer sb = new StringBuffer();
    // for (int i = 0; i < 172; i+=1) {
    // sb.append(Byte.valueOf(tzstruct[i]).intValue());
    // }
    //      
    // logger.info("b64: " + b64);
    // logger.info("tzstruct: "+ sb.toString());
    // logger.info("bias: " + bias);
    // logger.info("standardbias: " + standardBias);
    // logger.info("standardname: " +
    // bfStandardName.asCharBuffer().toString());
    // logger.info("daylightBias: " + daylightBias);

    return timezone;
}

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