The simple deserializer provides most of the stuff.
We just need to override makeValue().
Calendar calendar = Calendar.getInstance();
Date date;
boolean bc = false;
// validate fixed portion of format
if (source == null || source.length() == 0) {
throw new NumberFormatException(
Messages.getMessage("badDateTime00"));
}
if (source.charAt(0) == '+") {
source = source.substring(1);
}
if (source.charAt(0) == '-") {
source = source.substring(1);
bc = true;
}
if (source.length() < 19) {
throw new NumberFormatException(
Messages.getMessage("badDateTime00"));
}
if (source.charAt(4) != '-" || source.charAt(7) != '-" ||
source.charAt(10) != 'T") {
throw new NumberFormatException(Messages.getMessage("badDate00"));
}
if (source.charAt(13) != ':" || source.charAt(16) != ':") {
throw new NumberFormatException(Messages.getMessage("badTime00"));
}
// convert what we have validated so far
try {
synchronized (zulu) {
date = zulu.parse(source.substring(0, 19) + ".000Z");
}
} catch (Exception e) {
throw new NumberFormatException(e.toString());
}
int pos = 19;
// parse optional milliseconds
if (pos < source.length() && source.charAt(pos) == '.") {
int milliseconds = 0;
int start = ++pos;
while (pos < source.length() &&
Character.isDigit(source.charAt(pos))) {
pos++;
}
String decimal = source.substring(start, pos);
if (decimal.length() == 3) {
milliseconds = Integer.parseInt(decimal);
} else if (decimal.length() < 3) {
milliseconds = Integer.parseInt((decimal + "000")
.substring(0, 3));
} else {
milliseconds = Integer.parseInt(decimal.substring(0, 3));
if (decimal.charAt(3) >= '5") {
++milliseconds;
}
}
// add milliseconds to the current date
date.setTime(date.getTime() + milliseconds);
}
// parse optional timezone
if (pos + 5 < source.length() &&
(source.charAt(pos) == '+" || (source.charAt(pos) == '-"))) {
if (!Character.isDigit(source.charAt(pos + 1)) ||
!Character.isDigit(source.charAt(pos + 2)) ||
source.charAt(pos + 3) != ':" ||
!Character.isDigit(source.charAt(pos + 4)) ||
!Character.isDigit(source.charAt(pos + 5))) {
throw new NumberFormatException(
Messages.getMessage("badTimezone00"));
}
int hours = (source.charAt(pos + 1) - '0") * 10
+ source.charAt(pos + 2) - '0";
int mins = (source.charAt(pos + 4) - '0") * 10
+ source.charAt(pos + 5) - '0";
int milliseconds = (hours * 60 + mins) * 60 * 1000;
// subtract milliseconds from current date to obtain GMT
if (source.charAt(pos) == '+") {
milliseconds = -milliseconds;
}
date.setTime(date.getTime() + milliseconds);
pos += 6;
}
if (pos < source.length() && source.charAt(pos) == 'Z") {
pos++;
calendar.setTimeZone(TimeZone.getTimeZone("GMT"));
}
if (pos < source.length()) {
throw new NumberFormatException(Messages.getMessage("badChars00"));
}
calendar.setTime(date);
// support dates before the Christian era
if (bc) {
calendar.set(Calendar.ERA, GregorianCalendar.BC);
}
if (super.javaType == Date.class) {
return date;
} else {
return calendar;
}
