I have to fetch data from PV output website and for this I am using TimeStamp_StringSearcher. This is provided to me by my teacher and I dont know how to understand this:
cats = [[ A-Za-z0-9_@.\\/'#:,&+-]*]
When I run my fme scheme it says this error:
@Length -- Invalid argument -- ''6:15AM','6:30AM','6:45AM'.....
Kindly explain briefly
Thank you
+30
Hi @hassangillani3,
Could you share us the result generated by transformer WebServerCaller?
The transformer TimeStamp_StringSearcher, is a custom transformer?
Thanks,
Danilo
Danilo,
The webcaller server result is a specific solar power production data generated at several time intervals:
https://pvoutput.org/intraday.jsp?id=38342&sid;=35087&dt;=20170515
fme2.png
Thanks
Hi @hassangillani3,
Could you share us the result generated by transformer WebServerCaller?
The transformer TimeStamp_StringSearcher, is a custom transformer?
Thanks,
Danilo
Danilo,
The webcaller server result is a specific solar power production data generated at several time intervals:
https://pvoutput.org/intraday.jsp?id=38342&sid;=35087&dt;=20170515
fme2.png
Thanks
+3
the part between the square brackets is a regular expression.
Its nothing more then a character class.
It means that the string may consist of a 0 or more characters equal to either any of
A-Z a-z 0-9 _@. / ' # : , & + -
So alphabetic upper or lower, digits and either of _@. / ' # : , & + -
The \\ is a escape character for /
The characterclass is assigne to a attribute "cats" for further usage.
The @length() requires a geometric feature, not a string.
If you need length of string you should use@StringLength(<STRING>)
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