On Thu, Aug 4, 2011 at 9:30 AM, Luciano Resende <luckbr1...@gmail.com> wrote:
> On Thu, Aug 4, 2011 at 1:23 AM, Simon Laws <simonsl...@googlemail.com> wrote:
>> On Wed, Jul 27, 2011 at 5:13 PM, Subash Chaturanga <subash...@gmail.com>
>> wrote:
>>> Hi devs,
>>> I am a tuscany user in Apache PhotArk and I have an unexpected issue with my
>>> two services and I tried to resolve this many times, but couldn't figure out
>>> a way.
>>> I have implemented two working tuscany SCA components
>>> named, FacebookFriendFinder and FaceRecognitionService.
>>>
>>> I use the service FaceRecognitionService inside the
>>> service FacebookFriendFinder.
>>> Following is a kind of a pseudo code code to explain my situation.
>>> In FacebookFriendFinder Impl class
>>>
>>> Photo processFBFriends() {
>>> ...
>>> ...
>>> Photo p = FaceRecognitionService.recognize("file"); // call the recognize
>>> method in the service, FaceRecognitionService.
>>> --- program does not return to this line, it terminates
>>> }
>>>
>>> In FaceRecognitionService impl class
>>> public Photo recognize(String s) {
>>> ...
>>> ...
>>> Photo p = someAPI.recognize();
>>> // system.out(p) -- When I do a system.print to the Photo p before the
>>> return statement, it prints the expected "p".
>>> return p;
>>> }
>>> I am confused with this. Though "p" prints and is available just before the
>>> return statement in the class FaceRecognitionService it doesn't pass to its
>>> parent method any how. When I changed the return types to String from Photo,
>>> it works fine and return the string.
>>> So is there a problem in interacting among two tuscany SCA service
>>> components when dealing with custom objects like (org.face4j.Photo) other
>>> than java native ones ?
>>> It will be great if I can get some idea to resolve this issue.
>>>
>>> Thanks
>>> --
>>> Subash Chaturanga
>>> Department of Computer Science & Engineering
>>> University of Moratuwa
>>> Sri Lanka
>>> Blog - http://subashsdm.blogspot.com/
>>> Twitter - http://twitter.com/subash89
>>>
>>>
>>
>> Hi Subash
>>
>> Is FacebookFriendFinder communicating with FaceRecognitionService via
>> an SCA reference? From you psuedo code it looks like a static call? If
>> there is an SCA wire between the two the precise behaviour will depend
>> on the service interfaces the binding involved and any
>> intents/annotations that may have been added so we'd need to see more
>> detail of the composite you have.
>>
>> Regards
>>
>> Simon
>>
>>
>
> Subash ended up solving the problem which was related to the DTO used
> by Face4j not being serialazible. I suggested him to utilize it's own
> model class and that solved the problem.
>
> Thanks
>
>
> --
> Luciano Resende
> http://people.apache.org/~lresende
> http://twitter.com/lresende1975
> http://lresende.blogspot.com/
>
Ah excellent. Thanks Luciano.
Simon
--
Apache Tuscany committer: tuscany.apache.org
Co-author of a book about Tuscany and SCA: tuscanyinaction.com
