I am either missing something or have hit a bug and would love if someone
could help me determine which it is. I am trying to specify start/end
instances for a month's worth of hourly data in a coordinator.xml file.
Perhaps there is a better way of doing this, but what I was attempting was:
<input-events>
<data-in name="requests" dataset="request-logs">
<start-instance>${coord:offset(-1, 'MONTH')}</start-instance>
<end-instance>${coord:offset(-1, 'HOUR')}</end-instance>
</data-in>
</input-events>
Where nominal time for an action would be midnight of the first of the next
month. When submitting this, I get the error:
start-instance should be equal or earlier than the end-instance
That doesn't seem right. Looking at the code where the error is generated,
this doesn't look right, either:
if (funcType == OFFSET) {
TimeUnit startU = TimeUnit.valueOf(startRestArg);
TimeUnit endU = TimeUnit.valueOf(endRestArg);
if (startU.getCalendarUnit() * startIndex >
endU.getCalendarUnit() * endIndex) {
throw new CommandException(ErrorCode.E1010,
" start-instance should be equal or
earlier than the end-instance \n"
+ XmlUtils.prettyPrint(event));
}
...
}
IIUC, the ints returned by startU/endU.getCalendarUnit() have no relation
to the magnitude of the unit, so scaling them by startIndex/endIndex is
meaningless. Just after this block, the actual dates are resolved. At that
point, it could be determined easily whether one instance came before
another.
Have I missed something? Does anyone have any suggestions for another
method of grabbing a month's worth of hourly data?
Thanks in advance for whatever help you can provide,
- J.
--
J. McConnell
Founder, Übermensch Consulting
