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From "Subra A Narayanan" <aswat...@gmail.com>
Subject Re: Axiom Questions
Date Tue, 14 Aug 2007 17:17:36 GMT
Hey Kaushalye,

I noticed that ip_stream is of type axis2_byte_t. Looking at the definition
of axis2_byte_t in axutil_utils_defines.h, I realized that it is nothing but
a char. I am wondering if I read a part of a binary file from disk using
pread and store the read data in void *buffer and then type cast the buffer
in to a axis2_byte_t, if that will cause a problem?

Does my question make sense?

TIA
Subra

On 8/13/07, Kaushalye Kapuruge <kaushalye@wso2.com> wrote:
>
> Subra A Narayanan wrote:
> > Hey Samisa,
> >
> > With regards to my second question:
> >
> > I am not talking about reading part of the attachment. What I am
> > asking is can I read part of the file from the disk and attach it to
> > the message? 'axiom_data_handler_create' takes in a file name but no
> > offset. I can read a part of the file using pread, but but do I
> > convert the void *buff in to a data handler?
> Have you tried this?
> axiom_data_handler_set_binary_data(data_handler, env, ip_stream, len);
> First of all you'll have to keep you data(i.e. ip_stream) using
> axis2_byte_t*.
>
> Cheers,
> Kaushalye
> >
> > Subra
> >
> > On 8/13/07, *Samisa Abeysinghe* <samisa@wso2.com
> > <mailto:samisa@wso2.com>> wrote:
> >
> >     Subra A Narayanan wrote:
> >     > Hello everyone,
> >     >
> >     > Its Monday morning and I am back with my questions. :-)
> >     >
> >     > Not sure if these questions belong here but will ask anyways.
> Please
> >     > let me know if I should be sending this mail to some other
> >     mailing list.
> >     >
> >     > I am using Axis2 and have 2 basic questions about Axiom. I did
> some
> >     > searching on the web and tried looking through the Axis2/C
> >     source code
> >     > but don't have my answer. Here it goes:
> >     >
> >     > Q1) I have a web service with 4 operations. The first 3
> >     parameters are
> >     > the same for all the 4 operations. In other words, the first 3
> child
> >     > elements inside the <SoapBody><Operation Name></Operation
> >     > Name></SoapBody> are the same for the 4 operations. So I created
a
> >     > function, called ReadFirst3Params which gets called from all the 4
>
> >     > operations. Since, Axiom is based on a pull parser, I know I
> >     have to
> >     > have a reference to the 3rd parameter node to be able to read
> >     the 4th
> >     > parameter. Now my question is, do I need to return a reference
> >     to the
> >     > 3rd parameter node from my ReadFirst3Params function so that I can
> >     > continue reading the other params in the operation.
> >     Not really, one can read the rest of the OM tree the way they want,
> as
> >     an example, using the qname (see
> >     axiom_element_get_children_with_qname).
> >
> >     > Or is there any other way of doing this. For e.g. an internal
> >     pointer
> >     > that Axiom maintains which will tell me the position with in the
> XML
> >     > document. (I hope my question makes sense)
> >     >
> >     > Q2) One of the operation returns an attachment to the client as an
> >     > mtom attachment. I use axiom_data_handler_create to read in the
> >     binary
> >     > file. I have a requirement to be able to read in a part of the
> file
> >     > rather than the whole file. Just like pread function in 'C' where
> I
> >     > can specify an offset and the file is read from the beginning to
> the
> >     > offset. Is there a function in axiom to be able to do that? If
> not,
> >     > how do I solve the above problem?
> >     We do not have provision to read part of the attachment as of now.
> Is
> >     there any way you can break the attachment to multiple parts and
> send
> >     that in the SOAP message. If you can do that, then you can read
> >     only the
> >     first attachment and forget about the rest and pass it on, I hope.
> >
> >     Samisa...
> >     >
> >     >
> >     > Thanks again for ur help!
> >     >
> >     >
> >     > Subra
> >     >
> >     >
> >     >
> >
> >
> >     --
> >     Samisa Abeysinghe : WSO2 WSF/C
> >     "
> >     http://wso2.org/projects/wsf/c?WSO2&nbsp;Web&nbsp;Services&nbsp;Framework/C&nbsp;-&nbsp;Open&nbsp;source&nbsp;C&nbsp;library&nbsp;for&nbsp;providing&nbsp;and&nbsp;consuming&nbsp;Web&nbsp;services
>
> <http://wso2.org/projects/wsf/c?WSO2%C2%A0Web%C2%A0Services%C2%A0Framework/C%C2%A0-%C2%A0Open%C2%A0source%C2%A0C%C2%A0library%C2%A0for%C2%A0providing%C2%A0and%C2%A0consuming%C2%A0Web%C2%A0services>
> >     <http://wso2.org/projects/wsf/c?WSO2&nbsp;Web&nbsp;Services&nbsp;Framework/C&nbsp;-&nbsp;Open&nbsp;source&nbsp;C&nbsp;library&nbsp;for&nbsp;providing&nbsp;and&nbsp;consuming&nbsp;Web&nbsp;services
>
> <http://wso2.org/projects/wsf/c?WSO2%C2%A0Web%C2%A0Services%C2%A0Framework/C%C2%A0-%C2%A0Open%C2%A0source%C2%A0C%C2%A0library%C2%A0for%C2%A0providing%C2%A0and%C2%A0consuming%C2%A0Web%C2%A0services>
> >"
> >
> >
> >
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> >
>
>
> --
> http://kaushalye.blogspot.com/
> http://wso2.org/
>
>
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