On Tue, May 5, 2009 at 13:31, Ian Dunlop <[email protected]> wrote: > As you have noted, you should be able to use the reference service to give > you the correct object back using > eg, referenceService.renderIdentifier(reference, byte[].class, null) (where > byte[].class can be replaced with whatever you want). However the problem > here is you need a StreamToValueConverterSPI to do the conversion from a > stream to the type you want and there isn't one for Base64. > So, an alternative is to try using the local worker EncodeByteArrayToBase64 > which takes a byte array as input and outputs a Base64 object. Or write > your own StreamToValueConverterSPI :)
As Ian points out Taverna doesn't know that the string 'really' is a Base64-encoded byte array. Such an annotation/registration would have to be added by the service (activity) that produced it - and a matching converter would have to do the job. Strings can normally also be retrieved as byte[] arrays - but you would get the utf8-encoded version of the string. -- Stian Soiland-Reyes, myGrid team School of Computer Science The University of Manchester ------------------------------------------------------------------------------ The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your production scanning environment may not be a perfect world - but thanks to Kodak, there's a perfect scanner to get the job done! With the NEW KODAK i700 Series Scanner you'll get full speed at 300 dpi even with all image processing features enabled. http://p.sf.net/sfu/kodak-com _______________________________________________ taverna-hackers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/taverna-hackers Developers Guide: http://www.mygrid.org.uk/usermanual1.7/dev_guide.html FAQ: http://www.mygrid.org.uk/wiki/Mygrid/TavernaFaq
