I am using the following timestamp format:
yyyyMMddHHmmssSSS
The following method works fine:
public static String formatTimestamp(final Timestamp timestamp, final String format) {
final DateTimeFormatter formatter = DateTimeFormatter.ofPattern(format);
return timestamp.toLocalDateTime().format(formatter);
}
And, when I pass in a Timestamp with that format string, it returns, for example:
20170925142051591
I then require to map from that string to a Timestamp again, essentially the reverse operation. I know that I can use a SimpleDateFormat
and its parse()
method, but I'd prefer to stick to java.time
style formatting, if possible.
I wrote this (rather hacky) bit of code, which works with some formats, but not with this particular one:
public static Timestamp getTimestamp(final String text, final String format, final boolean includeTime) {
final DateTimeFormatter formatter = DateTimeFormatter.ofPattern(format);
final TemporalAccessor temporalAccessor = formatter.parse(text);
if (includeTime) {
final LocalDateTime localDateTime = LocalDateTime.from(temporalAccessor);
return DateTimeUtil.getTimestamp(localDateTime);
} else {
final LocalDate localDate = LocalDate.from(temporalAccessor);
return DateTimeUtil.getTimestamp(localDate);
}
}
It fails on the second line, at the formatter.parse(text);
part.
Stack Trace:
java.time.format.DateTimeParseException: Text '20170925142051591' could not be parsed at index 0
at java.time.format.DateTimeFormatter.parseResolved0(DateTimeFormatter.java:1949)
at java.time.format.DateTimeFormatter.parse(DateTimeFormatter.java:1851)
at java.time.LocalDateTime.parse(LocalDateTime.java:492)
at java.time.LocalDateTime.parse(LocalDateTime.java:477)
at com.csa.core.DateTimeUtil.main(DateTimeUtil.java:169)
Is there a simpler way to achieve what I want without utilising SimpleDateFormat
?
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