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Formatter.format for date format is not thread safe? [message #1386766]

Fri, 20 June 2014 09:42

X YB

Messages: 4
Registered: June 2014

Junior Member

I am using the birt engine 4.3.1 and my application will run muntiple reports at the same time(thread pool size =5).
I find that when the report using the expression like Formatter.format(dataset["create_date"],"dd/MM/yyyy"), it shows a lot of strange value like '01/05/0100'. Actually we don't have such date in DB. After regernate the report in single thread, the result is ok.
Is there a solution for this?

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Re: Formatter.format for date format is not thread safe? [message #1388938 is a reply to message #1386766]

Fri, 27 June 2014 05:44

Michael Williams

Messages: 1925
Registered: July 2009

Senior Member

Have you tried doing something like:

df = new java.text.SimpleDateFormat("dd/MM/yyyy");
df.format(row["create_date"]);

instead of the Formatter.format?

Michael

Developer Evangelist, Silanis

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Re: Formatter.format for date format is not thread safe? [message #1390901 is a reply to message #1388938]

Mon, 30 June 2014 06:42

X YB

Messages: 4
Registered: June 2014

Junior Member

Yes, this can resolve the problem. But I wonder that why the build-in expression will cause this. I think almost report development is using the build-in expression rather than java expression. So I want to know is there any special setting on birt engine or is it a birt engine bug.

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