Examples of sun.util.calendar.ZoneInfo

sun.util.calendar.ZoneInfo
ZoneInfo is an implementation subclass of {@link java.util.TimeZone TimeZone} that represents GMT offsets anddaylight saving time transitions of a time zone.
The daylight saving time transitions are described in the {@link #transitions transitions} table consisting of a chronologicalsequence of transitions of GMT offset and/or daylight saving time changes. Since all transitions are represented in UTC, in theory, ZoneInfo can be used with any calendar systems except for the {@link #getOffset(int,int,int,int,int,int) getOffset}method that takes Gregorian calendar date fields.
This table covers transitions from 1900 until 2037 (as of version 1.4), Before 1900, it assumes that there was no daylight saving time and the getOffset methods always return the {@link #getRawOffset} value. No Local Mean Time is supported. If aspecified date is beyond the transition table and this time zone is supposed to observe daylight saving time in 2037, it delegates operations to a {@link java.util.SimpleTimeZone SimpleTimeZone}object created using the daylight saving time schedule as of 2037.
The date items, transitions, GMT offset(s), etc. are read from a database file. See {@link ZoneInfoFile} for details. @see java.util.SimpleTimeZone @since 1.4

        if ((length = id.length()) < (GMT_ID_LENGTH + 2) ||
            id.indexOf(GMT_ID) != 0) {
            return null;
        }


        ZoneInfo zi;


        // First, we try to find it in the cache with the given
        // id. Even the id is not normalized, the returned ZoneInfo
        // should have its normalized id.
        zi = ZoneInfoFile.getZoneInfo(id);
        if (zi != null) {
            return zi;
        }


        int index = GMT_ID_LENGTH;
        boolean negative = false;
        char c = id.charAt(index++);
        if (c == '-') {
            negative = true;
        } else if (c != '+') {
            return null;
        }


        int hours = 0;
        int num = 0;
        int countDelim = 0;
        int len = 0;
        while (index < length) {
            c = id.charAt(index++);
            if (c == ':') {
                if (countDelim > 0) {
                    return null;
                }
                if (len > 2) {
                    return null;
                }
                hours = num;
                countDelim++;
                num = 0;
                len = 0;
                continue;
            }
            if (c < '0' || c > '9') {
                return null;
            }
            num = num * 10 + (c - '0');
            len++;
        }
        if (index != length) {
            return null;
        }
        if (countDelim == 0) {
            if (len <= 2) {
                hours = num;
                num = 0;
            } else {
                hours = num / 100;
                num %= 100;
            }
        } else {
            if (len != 2) {
                return null;
            }
        }
        if (hours > 23 || num > 59) {
            return null;
        }
        int gmtOffset =  (hours * 60 + num) * 60 * 1000;


        if (gmtOffset == 0) {
            zi = ZoneInfoFile.getZoneInfo(GMT_ID);
            if (negative) {
                zi.setID("GMT-00:00");
            } else {
                zi.setID("GMT+00:00");
            }
        } else {
            zi = ZoneInfoFile.getCustomTimeZone(id, negative ? -gmtOffset : gmtOffset);
        }
        return zi;

View Full Code Here

    private static TimeZone getTimeZone(String ID, boolean fallback) {
        TimeZone tz = ZoneInfo.getTimeZone(ID);
        if (tz == null) {
            tz = parseCustomTimeZone(ID);
            if (tz == null && fallback) {
                tz = new ZoneInfo(GMT_ID, 0);
            }
        }
        return tz;
    }

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        if ((length = id.length()) < (GMT_ID_LENGTH + 2) ||
            id.indexOf(GMT_ID) != 0) {
            return null;
        }


        ZoneInfo zi;


        // First, we try to find it in the cache with the given
        // id. Even the id is not normalized, the returned ZoneInfo
        // should have its normalized id.
        zi = ZoneInfoFile.getZoneInfo(id);
        if (zi != null) {
            return zi;
        }


        int index = GMT_ID_LENGTH;
        boolean negative = false;
        char c = id.charAt(index++);
        if (c == '-') {
            negative = true;
        } else if (c != '+') {
            return null;
        }


        int hours = 0;
        int num = 0;
        int countDelim = 0;
        int len = 0;
        while (index < length) {
            c = id.charAt(index++);
            if (c == ':') {
                if (countDelim > 0) {
                    return null;
                }
                if (len > 2) {
                    return null;
                }
                hours = num;
                countDelim++;
                num = 0;
                len = 0;
                continue;
            }
            if (c < '0' || c > '9') {
                return null;
            }
            num = num * 10 + (c - '0');
            len++;
        }
        if (index != length) {
            return null;
        }
        if (countDelim == 0) {
            if (len <= 2) {
                hours = num;
                num = 0;
            } else {
                hours = num / 100;
                num %= 100;
            }
        } else {
            if (len != 2) {
                return null;
            }
        }
        if (hours > 23 || num > 59) {
            return null;
        }
        int gmtOffset =  (hours * 60 + num) * 60 * 1000;


        if (gmtOffset == 0) {
            zi = ZoneInfoFile.getZoneInfo(GMT_ID);
            if (negative) {
                zi.setID("GMT-00:00");
            } else {
                zi.setID("GMT+00:00");
            }
        } else {
            zi = ZoneInfoFile.getCustomTimeZone(id, negative ? -gmtOffset : gmtOffset);
        }
        return zi;

View Full Code Here


        serialVersionOnStream = currentSerialVersion;


  // If there's a ZoneInfo object, use it for zone.
  try {
      ZoneInfo zi = (ZoneInfo) stream.readObject();
      if (zi != null) {
    zone = zi;
      }
  } catch (Exception e) {
  }


  // If the deserialized object has a SimpleTimeZone, try to
  // replace it with a ZoneInfo equivalent (as of 1.4) in order
  // to be compatible with the SimpleTimeZone-based
  // implementation as much as possible.
  TimeZone tz = getTimeZone();
  if (tz instanceof SimpleTimeZone) {
      String id = tz.getID();
      TimeZone zi = TimeZone.getTimeZone(id);
      if (zi != null && zi.hasSameRules(tz) && zi.getID().equals(id)) {
    setTimeZone(zi);
      }
  }
    }

View Full Code Here

    private static TimeZone getTimeZone(String ID, boolean fallback) {
        TimeZone tz = ZoneInfo.getTimeZone(ID);
        if (tz == null) {
            tz = parseCustomTimeZone(ID);
            if (tz == null && fallback) {
                tz = new ZoneInfo(GMT_ID, 0);
            }
        }
        return tz;
    }

View Full Code Here

        if ((length = id.length()) < (GMT_ID_LENGTH + 2) ||
            id.indexOf(GMT_ID) != 0) {
            return null;
        }


        ZoneInfo zi;


        // First, we try to find it in the cache with the given
        // id. Even the id is not normalized, the returned ZoneInfo
        // should have its normalized id.
        zi = ZoneInfoFile.getZoneInfo(id);
        if (zi != null) {
            return zi;
        }


        int index = GMT_ID_LENGTH;
        boolean negative = false;
        char c = id.charAt(index++);
        if (c == '-') {
            negative = true;
        } else if (c != '+') {
            return null;
        }


        int hours = 0;
        int num = 0;
        int countDelim = 0;
        int len = 0;
        while (index < length) {
            c = id.charAt(index++);
            if (c == ':') {
                if (countDelim > 0) {
                    return null;
                }
                if (len > 2) {
                    return null;
                }
                hours = num;
                countDelim++;
                num = 0;
                len = 0;
                continue;
            }
            if (c < '0' || c > '9') {
                return null;
            }
            num = num * 10 + (c - '0');
            len++;
        }
        if (index != length) {
            return null;
        }
        if (countDelim == 0) {
            if (len <= 2) {
                hours = num;
                num = 0;
            } else {
                hours = num / 100;
                num %= 100;
            }
        } else {
            if (len != 2) {
                return null;
            }
        }
        if (hours > 23 || num > 59) {
            return null;
        }
        int gmtOffset =  (hours * 60 + num) * 60 * 1000;


        if (gmtOffset == 0) {
            zi = ZoneInfoFile.getZoneInfo(GMT_ID);
            if (negative) {
                zi.setID("GMT-00:00");
            } else {
                zi.setID("GMT+00:00");
            }
        } else {
            zi = ZoneInfoFile.getCustomTimeZone(id, negative ? -gmtOffset : gmtOffset);
        }
        return zi;

View Full Code Here

        }


        serialVersionOnStream = currentSerialVersion;


        // If there's a ZoneInfo object, use it for zone.
        ZoneInfo zi = null;
        try {
            zi = AccessController.doPrivileged(
                    new PrivilegedExceptionAction<ZoneInfo>() {
                        public ZoneInfo run() throws Exception {
                            return (ZoneInfo) input.readObject();

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Related Classes of sun.util.calendar.ZoneInfo

java.util.Date

java.util.SimpleTimeZone

java.util.Calendar

java.util.TimeZone

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