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Posted to users@cxf.apache.org by Diana ALLAM <al...@gmail.com> on 2011/11/19 14:15:12 UTC
How I can use ws-discovery with cxf?
Hello,
I'm a new cxf user.
I'm working on an example for using ws-discovery standard to publish and require services.
I have a difficulty to start with my example. I search a long time for it but I didn't find any helpful indications
on the cxf web site.
Maybe it could be possible by using interceptors but I am not sur.
Any ideas? Could I have some help please?
It is very urgent for me.
Thank you in advance,
Regards,
Diana ALLAM
Re: How I can use ws-discovery with cxf?
Posted by Diana ALLAM <al...@gmail.com>.
Hello,
thanks a lot for your reply.
On 19 nov. 2011, at 14:31, Glen Mazza wrote:
> I suspect it would be very difficult for a new CXF user to implement a WS-* standard, but no major web service stack has implemented that standard[1] so you'd probably be coding it from scratch. Actually, [1] states there's some JAX-WS examples[2] that might be of help.
>
I already take a look to [1], I thought there is something similar for cxf as it is a support for WS-* standards.
I will follow this example so.
> Do you know how to create web services with CXF? Or work with JAX-WS handlers and CXF interceptors? [3], links 2, 43, and 44 might be of help.
>
Yes, I started an example by using Eclipse J2EE and Web Tools Platform (WTP) project.
But I didn't start yet working on JAX-WS handlers or CXF interceptors. [3] would be very useful for the rest of my project, thank you.
Best regards,
Diana ALLAM
> Regards,
> Glen
>
> [1] http://stackoverflow.com/questions/1946206/ws-discovery-implementations-for-java
> [2] http://code.google.com/p/java-ws-discovery/w/list
> [3] http://www.jroller.com/gmazza/entry/blog_article_index
>
> On 11/19/2011 08:15 AM, Diana ALLAM wrote:
>> Hello,
>>
>> I'm a new cxf user.
>> I'm working on an example for using ws-discovery standard to publish and require services.
>> I have a difficulty to start with my example. I search a long time for it but I didn't find any helpful indications
>> on the cxf web site.
>> Maybe it could be possible by using interceptors but I am not sur.
>>
>> Any ideas? Could I have some help please?
>> It is very urgent for me.
>>
>> Thank you in advance,
>>
>> Regards,
>>
>> Diana ALLAM
>
>
> --
> Glen Mazza
> Talend Community Coders
> http://coders.talend.com
> blog: http://www.jroller.com/gmazza
>
Re: How I can use ws-discovery with cxf?
Posted by Glen Mazza <gm...@talend.com>.
I suspect it would be very difficult for a new CXF user to implement a
WS-* standard, but no major web service stack has implemented that
standard[1] so you'd probably be coding it from scratch. Actually, [1]
states there's some JAX-WS examples[2] that might be of help.
Do you know how to create web services with CXF? Or work with JAX-WS
handlers and CXF interceptors? [3], links 2, 43, and 44 might be of help.
Regards,
Glen
[1]
http://stackoverflow.com/questions/1946206/ws-discovery-implementations-for-java
[2] http://code.google.com/p/java-ws-discovery/w/list
[3] http://www.jroller.com/gmazza/entry/blog_article_index
On 11/19/2011 08:15 AM, Diana ALLAM wrote:
> Hello,
>
> I'm a new cxf user.
> I'm working on an example for using ws-discovery standard to publish and require services.
> I have a difficulty to start with my example. I search a long time for it but I didn't find any helpful indications
> on the cxf web site.
> Maybe it could be possible by using interceptors but I am not sur.
>
> Any ideas? Could I have some help please?
> It is very urgent for me.
>
> Thank you in advance,
>
> Regards,
>
> Diana ALLAM
--
Glen Mazza
Talend Community Coders
http://coders.talend.com
blog: http://www.jroller.com/gmazza
Re: How I can use ws-discovery with cxf?
Posted by Diana ALLAM <al...@gmail.com>.
Hello,
Thank you for your reply.
I thought that there is already some API in cxf for ws-discovery support like other
WS-* standards.
That is mean, I have to implement from scratch all the details of the ws-discovery specification.
As my goal for the moment is to have a running example for this standard, finally I used Java-ws-discovery
(http://code.google.com/p/java-ws-discovery/).
But in our future work, we will use cxf for the implementation of our model based on a discovery mechanism.
Thus, we need to go deeply in all these details.
Thank you again,
Best regards,
Diana
On 21 nov. 2011, at 19:58, Daniel Kulp wrote:
> On Saturday, November 19, 2011 2:15:12 PM Diana ALLAM wrote:
>> Hello,
>>
>> I'm a new cxf user.
>> I'm working on an example for using ws-discovery standard to publish and
>> require services. I have a difficulty to start with my example. I search a
>> long time for it but I didn't find any helpful indications on the cxf web
>> site.
>> Maybe it could be possible by using interceptors but I am not sur.
>>
>> Any ideas? Could I have some help please?
>> It is very urgent for me.
>>
>> Thank you in advance,
>
> WS-Discovery is a big enough thing that you should likely start by trying to
> chop that into smaller parts and tackling it in chunks. Each chunk would
> have different requirements and such and discussing each one on the list
> (likely the dev list, not users list) separately would probably be the best
> option.
>
> For example, right off the top of my head I can break this into several
> parts/discussions:
>
> 1) Ad-Hoc vs Managed - Managed will be a lot easier as CXF really doesn't have
> any support for multicast related transports right now. Thus, ad-hoc will be
> a bit more involved to do "internal CXF changes". HOWEVER, Managed mode
> would require writing a Discovery Proxy. That may be pretty easy though as
> there aren't a lot of operations to implement (hello/bye/probe/resolve).
>
> 2) Service side - you would just need to write a ServerLifecycleListener that
> would send the "hello" and "bye" messages out. This is likely pretty easy
> and would be a greate starting point if you have a DiscoveryProxy avail to
> test with.
>
> 3) There are many ways to wire in the client side stuff. We could just
> provide an API which would allow the developer to get an EPR that they then
> pass directly into the JAX-WS createXYZService(....) calls. That would a
> simple step one. Another option is to add a callback into the createXXX
> calls that would allow a listener to be registered that would lookup that
> stuff so the developer doesn't have to do anything.
>
> Anyway, WS-Discovery does have a bunch of moving parts in it with different
> modes of operation. If you can break it down into smaller chunks that you
> are interested in tackling, we can definitely help provide pointers as to
> where to start looking.
>
>
> --
> Daniel Kulp
> dkulp@apache.org - http://dankulp.com/blog
> Talend Community Coder - http://coders.talend.com
Re: How I can use ws-discovery with cxf?
Posted by Daniel Kulp <dk...@apache.org>.
On Saturday, November 19, 2011 2:15:12 PM Diana ALLAM wrote:
> Hello,
>
> I'm a new cxf user.
> I'm working on an example for using ws-discovery standard to publish and
> require services. I have a difficulty to start with my example. I search a
> long time for it but I didn't find any helpful indications on the cxf web
> site.
> Maybe it could be possible by using interceptors but I am not sur.
>
> Any ideas? Could I have some help please?
> It is very urgent for me.
>
> Thank you in advance,
WS-Discovery is a big enough thing that you should likely start by trying to
chop that into smaller parts and tackling it in chunks. Each chunk would
have different requirements and such and discussing each one on the list
(likely the dev list, not users list) separately would probably be the best
option.
For example, right off the top of my head I can break this into several
parts/discussions:
1) Ad-Hoc vs Managed - Managed will be a lot easier as CXF really doesn't have
any support for multicast related transports right now. Thus, ad-hoc will be
a bit more involved to do "internal CXF changes". HOWEVER, Managed mode
would require writing a Discovery Proxy. That may be pretty easy though as
there aren't a lot of operations to implement (hello/bye/probe/resolve).
2) Service side - you would just need to write a ServerLifecycleListener that
would send the "hello" and "bye" messages out. This is likely pretty easy
and would be a greate starting point if you have a DiscoveryProxy avail to
test with.
3) There are many ways to wire in the client side stuff. We could just
provide an API which would allow the developer to get an EPR that they then
pass directly into the JAX-WS createXYZService(....) calls. That would a
simple step one. Another option is to add a callback into the createXXX
calls that would allow a listener to be registered that would lookup that
stuff so the developer doesn't have to do anything.
Anyway, WS-Discovery does have a bunch of moving parts in it with different
modes of operation. If you can break it down into smaller chunks that you
are interested in tackling, we can definitely help provide pointers as to
where to start looking.
--
Daniel Kulp
dkulp@apache.org - http://dankulp.com/blog
Talend Community Coder - http://coders.talend.com