ode-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Denis Weerasiri <ddweeras...@gmail.com>
Subject Re: Question about interfacing with external web services
Date Mon, 18 Oct 2010 18:16:29 GMT
On Mon, Oct 18, 2010 at 10:27 PM, Luis Miguel Silva <
luismiguelferreirasilva@gmail.com> wrote:

> Dear Denis,
>
> Thank you for your reply.
> I did now my deploy.xml was incomplete, but Eclipse's BPEL editor did
> not allow me to fill it in (directly using the editor) and that is why
> i was feeling kind of lost.
>
> Thank you for your example.
>
> I would also like to ask you what do you mean by having that external
> web service stored locally? Do you mean i have to download the WSDL
> for all external web services and reference them using local WSDL
> files?
>
Yp, IIRC, the WSDLs need to be local.

>
> Thank you!
> Luis
>
> On Mon, Oct 18, 2010 at 10:37 AM, Denis Weerasiri <ddweerasiri@gmail.com>
> wrote:
> > Hi Luis,
> > I looked in to the attached bpel.
> > First I looked into the deploy.xml. It contains no elements like
> <provide/>
> > <invoke/> elements. Every partner link used with a <receive /> activity
> must
> > be matched with a <provide /> element, and every partnerLink used in an
> <invoke
> > /> activity must be matched with an <invoke /> element in deploy.xml.
> > Without a deploy.xml, a BPEL engine cannot figure the concrete level
> details
> > of the partner services. In the deploy.xml, the <service /> element
> > determines the concrete level details of all the partner services that
> > interacts with the BPEL process.
> >
> > eg -
> >
> > <?xml version="1.0" encoding="UTF-8"?>
> > <deploy xmlns="http://www.apache.org/ode/schemas/dd/2007/03"
> > xmlns:FunctionProcess.bpel="http://FunctionProcess.bpel"
> >        xmlns:FunctionProcessService.wsdl="
> http://FunctionProcessService.wsdl"
> > xmlns:AdderService.wsdl="http://AdderService.wsdl"
> >        xmlns:MultiplierService.wsdl="http://MultiplierService.wsdl"
> > xmlns:SquareService.wsdl="http://SquareService.wsdl">
> >  <process name="FunctionProcess.bpel:FunctionProcess">
> >    <process-events generate="all"/>
> >    <provide partnerLink="FunctionProcessPartnerLink">
> >      <service
> name="FunctionProcessService.wsdl:FunctionProcessServiceService"
> > port="FunctionProcessServicePort"/>
> >    </provide>
> >    <invoke partnerLink="SquarePartnerLink">
> >      <service name="SquareService.wsdl:SquareService"
> > port="SquareServiceSOAP11port_http"/>
> >    </invoke>
> >  </process>
> > </deploy>
> >
> > So the http://services.sapo.pt/Metadata/Contract/ADSL?culture=PT also
> should
> > be stored locally.
> >
> > There may be other issues as well.
> >
> >
> > On Sat, Oct 16, 2010 at 2:09 AM, Luis Miguel Silva <
> > luismiguelferreirasilva@gmail.com> wrote:
> >
> >> Dear all,
> >>
> >> I just found out about Apache ODE this week and i've been extremely
> >> excited for its capabilities! (so i would like to start by
> >> congratulating and showing my appreciation by all the developers :o)).
> >>
> >> I've been playing around with Eclipse BPEL and was able to deploy a
> >> sample "hello world" program (following this tutorial ->
> >> http://www.eclipse.org/bpel/users/pdf/HelloWorld-BPELDesignerAndODE.pdf
> )
> >> but i have a lot of questions on how to interface with an actual
> >> external web service.
> >> I've been reading a lot and could not find a good top / down example
> >> on how to interface with an external web service, use multiple input
> >> variables and multiple output variables, as well as how to convert
> >> between different types [i.e. i get a boolean result but want to shove
> >> it into a string] (i know i'll have to use xPATH to do it but it is
> >> still not clear to me how it works as, even just using the Eclipse
> >> BPEL designer, i still get a lot of bizarre errors).
> >>
> >> I ended up creating a very simple project with an if statement that
> >> tries to understand the value of the boolean variable and correctly
> >> populate the string one and, although Eclipse does not complain about
> >> any errors, the Apache ODE Deployment Descriptor does not seem to
> >> recognize the WDSL definitions for my project...ARGH!
> >> "Description    Resource        Path    Location        Type
> >> No grammar constraints (DTD or XML schema) detected for the
> >> document.       deploy.xml      /myproject/bpelContent  line 1  XML
> Problem
> >> "
> >> It's also not entirely clear to me what the difference is between a
> >> global or local variable / partner link?
> >>
> >> Does anybody know any good tutorials that go into a little more detail
> >> than the one i mentioned above?
> >> I'm interested in learning to both use the Eclipse BPEL designer and
> >> defining the BPEL packages myself.
> >>
> >> I've attached my sample project to this email. I would be extremely
> >> grateful if someone can help me understand what am i doing wrong and
> >> point me on the right direction!
> >> This project just tries to consume an external web service (as
> >> described here ->
> >> http://services.sapo.pt/Metadata/Contract/ADSL?culture=PT) and return
> >> "true" or "false" based on that service's reply.
> >> I would really love to see a couple of more complex examples on how to
> >> throw exceptions, conditions, passing a variable number of inputs
> >> (which is another thing i DO NOT understand how to do), etc.
> >>
> >> Thanks a lot my friends,
> >> Luis Silva
> >>
> >
> >
> >
> > --
> > Thanks,
> > Denis
> > ----------------------------------------------------------
> > *Denis Weerasiri*
> > <http://wso2.com/>**** <http://wso2.com/>* blog: **
> > http://ddweerasiri.blogspot.com* <http://ddweerasiri.blogspot.com/>*
> > twitter: **http://twitter.com/ddweerasiri* <
> http://twitter.com/ddweerasiri>*
> > linked-in: **http://lk.linkedin.com/in/ddweerasiri*<
> http://lk.linkedin.com/in/ddweerasiri>
> >
>



-- 
Thanks,
Denis
----------------------------------------------------------
*Denis Weerasiri*
<http://wso2.com/>**** <http://wso2.com/>* blog: **
http://ddweerasiri.blogspot.com* <http://ddweerasiri.blogspot.com/>*
twitter: **http://twitter.com/ddweerasiri* <http://twitter.com/ddweerasiri>*
linked-in: **http://lk.linkedin.com/in/ddweerasiri*<http://lk.linkedin.com/in/ddweerasiri>

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message