Eddie,
Thanks for answering the concerns raised by Nicholas and Dennis.
As dims pointed out, I will start with annogen to get the
ReflectionWsmServiceFactory going.
Regards,
Rajith
On 6/21/06, Davanum Srinivas <[EMAIL PROTECTED]> wrote:
> Eddie,
>
> As i was telling Rajith, we'd like to try annogen based runtime
> annotation processing to start with.
>
> -- dims
>
> On 6/21/06, Eddie O'Neil <[EMAIL PROTECTED] > wrote:
> >
> > Nicholas --
> >
> > Basically, yes. :) WSM will handle the complexity around the
specification's details regarding the @WebService annotation, SEIs, and WSDL
binding. There's code living here:
> >
> >
http://svn.apache.org/repos/asf/beehive/wsm/trunk/src/core/org/apache/beehive/wsm/processor/checker/Jsr181AnnotationChecker.java
> >
> > that implements most of this (there are a few holes...). The annotation
processor walks an @WebService annotated class / interface and produces a
model that describes the service (WsmService). This POJO can then be used
for code generation, to update deployment descriptors, or for auto-wiring of
a web service in the VM at runtime. The latter is how this works for Axis1.
> >
> > Currently, WSM is implemented to use Java 5's Mirror infrastructure in
order to execute annotation processing at build time. We have a layer that
basically duplicates the Mirror APIs and wraps them so that it's possible to
support XDoclet / annogen / asm, so it should be possible to support either
1.5 or 1.4 and annotation processing at buildtime or at runtime. Certainly
open to other suggestions if you have them -- if we moved away from Mirror
altogether, there would be some work to do to rewrite some things, but it
wouldn't be rocket science. :)
> >
> >
> > Eddie
> >
> >
> >
> >
> > On 6/19/06, Nicholas L Gallardo <[EMAIL PROTECTED]> wrote:
> > >
> > >
> > > Rajith,
> > >
> > > From a JAX-WS perspective, the @WebService annotation does introduce
some challenges when it comes to determining what the interface of a Web
service will be. From my interpretation, which is just that, it doesn't
dictate as much how the annotation should be handled at runtime as much as
it does instruct how the annotation affects the Java to WSDL mapping. I
think the assumption after that is, the system will then do whatever it
needs to configure itself to fulfill the contract defined by that WSDL. If
I understand correctly what Dim's has proposed, this is the piece that your
WSMToAxisServiceBuilder will fulfill. The rest is making sure that the
information gets relayed to Axis2 correctly.
> > >
> > > With respect to just the @WebService annotation, and not the
annotations processing as a whole, it seems like you might encounter a few
scenarios that could be tricky. I don't know enough about the specifics of
WSM though, so it may resolve some of the headaches for you.
> > >
> > > - When a class is annotated with @WebService, any of the public
methods available on that class are to be exposed as an operation in a Web
service. If that particular annotation instance has the WSDL document
location specified, then we need to do some bit of processing/validation to
make sure the public methods support what's defined in the WSDL. Or....
does WSM just do that for you?
> > >
> > > - Because of the "serviceEnpdointInterface" property on the
@WebService annotation, the above case becomes a little more complex.
JAX-WS has a notion of squashing that SEI, along with the public methods on
any other interface that the SEI may extend into one giant interface, which
should then be reflected in the WSDL. Again, I don't know enough about WSM,
but this might be something it handles for you. If not, it seems like you
will be required to walk the annotations and collect the metadata from every
interface that's extended?
> > >
> > > I'm glad to see you'll be working on this. As mentioned before, I
think there is some commonality that can be leveraged when it comes to
JAX-WS as well. A few questions though about the annotations support for
Axis2 endpoints (I know you're just getting started with this so I
understand if some of this is longer term) :
> > >
> > > - When annotations are added to a class, are you still requiring the
presence of a services.xml? If so, what's the minimum set of information
required in that document? I.e., could I get away with annotating a class
and just specifying that ServiceClass property in XML file? I can see still
needing the deployment descriptor for specifying module refs, but would it
be able to have just that and not the operation descriptions. Just a
thought.
> > >
> > > - If annotations are supported for Axis2/ADB endpoints, how would we
distinguish those from JAX-WS endpoints?
> > >
> > > Hope this helps...
> > >
> > > Regards,
> > >
> > > Nicholas Gallardo
> > > WebSphere - WebServices Development
> > > [EMAIL PROTECTED]
> > > Phone: 512-838-1182
> > > Building: 901 / 5G-016
> > >
> > >
> > >
> > >
> > > "Rajith Attapattu" <[EMAIL PROTECTED]>
> > >
> > >
> > > 06/19/2006 09:35 PM
> > >
> > > Please respond to
> > > axis-dev@ws.apache.org
> > >
> > >
> > > To axis-dev@ws.apache.org , [EMAIL PROTECTED]
> > >
> > > cc
> > >
> > >
> > > Subject Re: Annotation parsing framework for Axis2 (Re: [wsm] a plan)
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > Dims,
> > >
> > > Sounds good.
> > >
> > > So it looks like the @WebService tag is not really useful as we
explicitly name the class in the services.xml
> > > So from Axis2 side we are covered
> > >
> > > However I am wondering if there is some requirment from the JAX-WS
side as to how we should leverage this @WebService annotation.
> > > wondering if the spec mandates some sort of stratergy for this. (I
read the spec and couldn't find anything)
> > >
> > > For now lets go ahead with what we planned (with a message receiver)
and worry about @WebService thing when we figure out the exact requirment.
> > >
> > > Regards,
> > >
> > > Rajith.
> > >
> > > On 6/19/06, Davanum Srinivas <[EMAIL PROTECTED] > wrote:
> > > Rajith,
> > >
> > > In the short term, We have RPCMessageReceiver,
> > > SpringRPCMessageReceiver etc. we could throw in a quick
> > > WSMRPCMessageReceiver as well. So we will have to look at the class
> > > name specified in the services.xml just like we do for other
> > > receivers.
> > >
> > > -- dims
> > >
> > > On 6/19/06, Rajith Attapattu < [EMAIL PROTECTED] > wrote:
> > > > Hi Dims
> > > >
> > > > One more question if you don't mind :-)
> > > >
> > > > What is the plan to figure out a class marked with @WebService?
> > > >
> > > > a) are we going to look through a particular location to introspect
any
> > > > class files droped there ?
> > > > b) is the user responsible for adding the service via some API
method ? for
> > > > ex: AxisService.createService(String className) ?
> > > >
> > > > The rest we can introspect once we get the class identified. But I
am
> > > > wondering how is the initial step of figuring out the marked
(annotated
> > > > class) class with the @WebService tag.
> > > >
> > > > Sorry for the long list of questions.
> > > >
> > > > Regards,
> > > >
> > > > Rajith
> > > >
> > > >
> > > > On 6/16/06, Rajith Attapattu < [EMAIL PROTECTED] > wrote:
> > > > >
> > > > > Hi Dims,
> > > > >
> > > > > Sorry if this question sounds stupid, but there is something that
I don't
> > > > get.
> > > > > Can you explain any gaps that I have? :-)
> > > > >
> > > > > So we use WSM to get the jsr181 support.
> > > > > But, It looks like wsm is not complete in terms of the POJO
aspect as the
> > > > reflection based ReflectionWsmServiceFactory is not done.
> > > > >
> > > > > I guess part of the job is to complete the wsm stuff and then use
it
> > > > inside axis2. Or did I get this wrong?
> > > > >
> > > > >
> > > > > >> Forgot to mention, please use annogen (
http://annogen.codehaus.org/ )
> > > > to access the annotations which are needed to build the WsmService
> > > > >
> > > > > So are we going to do the implementation of
ReflectionWsmServiceFactory
> > > > inside Axis2?
> > > > >
> > > > > I thought we are going to complete that inside wsm and then
implement
> > > > WSMToAxisServiceBuilder in Axis2 to build a Axis2 service out of a
> > > > WSMService thats produced via the ReflectionWsmServiceFactory.
> > > > >
> > > > > Did I miss something?
> > > > >
> > > > > Thanks,
> > > > >
> > > > >
> > > > > Rajith
> > > > >
> > > > >
> > > > > On 6/13/06, Davanum Srinivas < [EMAIL PROTECTED] > wrote:
> > > > > > Let's keep this to axis-dev@ until we need some questions
answered
> > > > > > from beehive folks. Forgot to mention, please use annogen
> > > > > > ( http://annogen.codehaus.org/) to access the annotations which
are
> > > > > > needed to build the WsmService. We explicitly took a dependency
on
> > > > > > annogen in Axis2 for this purpose.
> > > > > >
> > > > > > thanks,
> > > > > > -- dims
> > > > > >
> > > > > > On 6/13/06, Rajith Attapattu < [EMAIL PROTECTED] > wrote:
> > > > > > > Hi Dims,
> > > > > > >
> > > > > > > Thanks for the pointers.
> > > > > > > Let me look at how to get the ReflectionWsmServiceFactory
impl going.
> > > > > > > after that I can start with WSMToAxisServiceBuilder to build
an
> > > > AxisService
> > > > > > > out of an anotated POJO.
> > > > > > > Once I have something I will create a JIRA and attach a
patch. U can
> > > > take a
> > > > > > > look at the code and then we can take it from there.
> > > > > > > If I have questions I will bug u again :-)
> > > > > > >
> > > > > > > Btw, the Beehive mailing list seems to be a bit quiet, so I
am
> > > > wondering how
> > > > > > > to get WSM specific questions answered :-)
> > > > > > >
> > > > > > > Regards,
> > > > > > >
> > > > > > > Rajith
> > > > > > >
> > > > > > > On 6/13/06, Davanum Srinivas < [EMAIL PROTECTED]> wrote:
> > > > > > > >
> > > > > > > > Rajith,
> > > > > > > >
> > > > > > > > I think you need to implement ReflectionWsmServiceFactory
first. The
> > > > > > > > angle of attack i am looking at is deploying a POJO with
> > > > annotations.
> > > > > > > > (See AxisService.createService in Axis2 where one can
deploy a
> > > > pojo).
> > > > > > > > You will have to write a WSMToAxisServiceBuilder (see
> > > > > > > > WSDL11ToAxisServiceBuilder) to populate the AxisService
info from
> > > > WSM.
> > > > > > > > WDYT? Once we have this, we can get fancy with codegen etc.
> > > > > > > >
> > > > > > > > thanks,
> > > > > > > > dims
> > > > > > > >
> > > > > > > > On 6/5/06, Rajith Attapattu <[EMAIL PROTECTED] > wrote:
> > > > > > > > > Hi Dims & Eddie,
> > > > > > > > >
> > > > > > > > > So code wise I should be looking at MirrorWsmBuilder and
> > > > WsmService?
> > > > > > > > > Any pointers will be helpful.
> > > > > > > > >
> > > > > > > > > I am going through the wiki and JSR documentation and
will get
> > > > back with
> > > > > > > > > questions.
> > > > > > > > > Meanwhile do we have that seperate jar that bundles all
the
> > > > relevent
> > > > > > > > classes
> > > > > > > > > for the annotations support?
> > > > > > > > >
> > > > > > > > > Regards,
> > > > > > > > >
> > > > > > > > > Rajith
> > > > > > > > >
> > > > > > > > > On 2/5/06, Eddie O'Neil < [EMAIL PROTECTED] > wrote:
> > > > > > > > > >
> > > > > > > > > > Dims--
> > > > > > > > > >
> > > > > > > > > > Hey; apologies for the delay. That's basically right
-- there
> > > > is
> > > > > > > > > > actually one other step in the annotation processing
pipeline
> > > > which is
> > > > > > > > > > verifying the validity of any annotations on the class.
So, it
> > > > would
> > > > > > > > > > be:
> > > > > > > > > >
> > > > > > > > > > annotation checking (Jsr181AnnotationChecker) -->
model
> > > > building
> > > > > > > > > > (MirrorWsmBuilder)
> > > > > > > > > >
> > > > > > > > > > which returns a WsmService object that can be wired up
into
> > > > axis2
> > > > > > > > stuff.
> > > > > > > > > >
> > > > > > > > > > I can certainly break the Axis 1.x stuff into a
separate JAR;
> > > > my
> > > > > > > > > > original plan was to just put the Axis 1.x and 2 bits
in the
> > > > same JAR
> > > > > > > > > > file, but if this is a problem, let me know and I can
make three
> > > > JARs
> > > > > > > > > > -- generic web service processing code, axis 1, axis 2,
etc.
> > > > > > > > > >
> > > > > > > > > > There is one important part of this that isn't done
yet, and
> > > > that's
> > > > > > > > > > to provide something that can be used inside of a
server runtime
> > > > that
> > > > > > > > > > abstracts from Sun's Mirror types which are used inside
of APT.
> > > > Not
> > > > > > > > > > exactly sure what this looks like yet -- could be
reflection or
> > > > > > > > > > something else that abstracts from Sun's Mirror APIs
(used
> > > > inside of
> > > > > > > > > > APT).
> > > > > > > > > >
> > > > > > > > > > Do you want to run this from inside of the Axis2
runtime or at
> > > > > > > > > > build-time on the command line? I'm assuming the
former.
> > > > > > > > > >
> > > > > > > > > > Eddie
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > On 2/1/06, Davanum Srinivas < [EMAIL PROTECTED] >
wrote:
> > > > > > > > > > > Eddie,
> > > > > > > > > > >
> > > > > > > > > > > i was looking at the current codebase and spotted the
> > > > > > > > > > > MirrorWsmBuilder. Is this what we can use in Axis2 to
inspect
> > > > a
> > > > > > > > given
> > > > > > > > > > > java class? and one the WsmService object is built,
then
> > > > translate
> > > > > > > > > > > that to Axis2 thingies? Can we split out the
processing
> > > > framework
> > > > > > > > into
> > > > > > > > > > > a separate jar (w/o things like Axis1 stuff)? Am i on
the
> > > > right
> > > > > > > > track
> > > > > > > > > > > with this thinking?
> > > > > > > > > > >
> > > > > > > > > > > thanks,
> > > > > > > > > > > dims
> > > > > > > > > > >
> > > > > > > > > > > On 1/3/06, Eddie O'Neil < [EMAIL PROTECTED] > wrote:
> > > > > > > > > > > > All--
> > > > > > > > > > > >
> > > > > > > > > > > > Happy New Year! And, as a way to start the year
off on a
> > > > good
> > > > > > > > foot,
> > > > > > > > > > > > let's get WSM to 1.0. Below is a proposal for how
we get
> > > > from
> > > > > > > > here to
> > > > > > > > > > > > there with some details about where we are and what
needs to
> > > > > > > > happen.
> > > > > > > > > > > >
> > > > > > > > > > > > Today, there are two core WSM parts, both of
which are
> > > > tailored
> > > > > > > > to
> > > > > > > > > > > > the Axis web service stack:
> > > > > > > > > > > >
> > > > > > > > > > > > build-time: This is a generic annotation
processing layer
> > > > that
> > > > > > > > has
> > > > > > > > > > > > the ability to work against Mirror, reflection, and
WSDL to
> > > > > > > > produce a
> > > > > > > > > > > > WSM JavaBean model that represents a web service.
The
> > > > build-time
> > > > > > > > > > > > layer has a plug-point for generating source
artifacts to
> > > > support
> > > > > > > > > > > > various web service runtimes. For example, the
Axis
> > > > > > > > implementation
> > > > > > > > > > > > produces a serialized version of the WSM JavaBean
model.
> > > > This
> > > > > > > > could
> > > > > > > > > > > > also produce JAX-RPC source / deployment descriptor
> > > > artifacts,
> > > > > > > > etc.
> > > > > > > > > > > >
> > > > > > > > > > > > runtime: The runtime side of WSM is specifically
built to
> > > > > > > > support
> > > > > > > > > > > > the Axis 1.x runtime. It loads the serialized
JavaBean
> > > > model
> > > > > > > > > > > > generated at build time and uses an Axis Handler to
> > > > configure a
> > > > > > > > > > > > SOAPService given this information.
> > > > > > > > > > > >
> > > > > > > > > > > > There is another large bunch of code in WSM
related to
> > > > tools:
> > > > > > > > > > > >
> > > > > > > > > > > > wsdl2ajava -- this tool supports the top-down web
service
> > > > > > > > development
> > > > > > > > > > > > model and starts with a WSDL to produce an
annotated Java
> > > > source
> > > > > > > > file.
> > > > > > > > > > > > This tool requires significant knowledge of WSDL
and type
> > > > mapping
> > > > > > > > for
> > > > > > > > > > > > a specific web service stack. For example, the
mapping for
> > > > an XSD
> > > > > > > > > > > > year is mapped to org.apache.axis.types.Year and
something
> > > > > > > > different
> > > > > > > > > > > > on other web service stacks. wsdl2java is a
non-trivial
> > > > bunch of
> > > > > > > > code
> > > > > > > > > > > > to write, but is also a very useful tool.
> > > > > > > > > > > >
> > > > > > > > > > > > In order to finish WSM, one more re-architecting
step
> > > > needs to
> > > > > > > > be
> > > > > > > > > > > > completed; I'd like to remove the use of a
serialized Java
> > > > object
> > > > > > > > as
> > > > > > > > > > > > the way to communicate from the build-time to
runtime parts
> > > > of the
> > > > > > > > > > > > implementation. This would be replaced with a WSDD
like,
> > > > but WSM
> > > > > > > > > > > > specific, XML descriptor of the service. AFAICT,
WSDD can't
> > > > be
> > > > > > > > used
> > > > > > > > > > > > for this because too closely matches the shape of a
Java
> > > > class
> > > > > > > > (Dims
> > > > > > > > > > > > and others, feel free to correct me if I'm wrong).
So, we
> > > > need a
> > > > > > > > > > > > simple XML file that describes the information
captured in a
> > > > > > > > > > > > WsmService.
> > > > > > > > > > > >
> > > > > > > > > > > > Once this is done, we can start work on passing
the
> > > > JSR-181 TCK.
> > > > > > > > > > > > This will be done atop Apache Axis 1.x.
> > > > > > > > > > > >
> > > > > > > > > > > > In order to expedite the process of getting from
here to
> > > > TCK
> > > > > > > > > > > > compliance, I'd like to suggest that we stop stop
work on
> > > > the
> > > > > > > > > > > > wsdl2ajava tool in order to focus on finishing 1.0
and
> > > > restart
> > > > > > > > this
> > > > > > > > > > > > tool immediately post-1.0.
> > > > > > > > > > > >
> > > > > > > > > > > > Post 1.0, there are lots of other things that we
could do
> > > > > > > > including:
> > > > > > > > > > > >
> > > > > > > > > > > > - JDK 1.4 support
> > > > > > > > > > > > - drop-in support for WSM in Axis to support
iteratively
> > > > > > > > developing an
> > > > > > > > > > > > annotated web service
> > > > > > > > > > > > - JAX-RPC support (Ias, still have any interest in
working
> > > > on
> > > > > > > > this?)
> > > > > > > > > > > > - custom annotations to support container-specific
features
> > > > like
> > > > > > > > type
> > > > > > > > > > mapping
> > > > > > > > > > > > - and so on...
> > > > > > > > > > > >
> > > > > > > > > > > > Personally, I'm chomping at the bit to get WSM's
1.0 done
> > > > and
> > > > > > > > would
> > > > > > > > > > > > like to narrow scope in order to do that. I think
we're
> > > > almost
> > > > > > > > ready
> > > > > > > > > > > > for the TCK; I'll start on the XML file to describe
an
> > > > annotated
> > > > > > > > Axis
> > > > > > > > > > > > web service shortly.
> > > > > > > > > > > >
> > > > > > > > > > > > Thoughts, comments, and flames welcome.
> > > > > > > > > > > >
> > > > > > > > > > > > Eddie
> > > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > > --
> > > > > > > > > > > Davanum Srinivas : http://wso2.com/blogs/
> > > > > > > > > > >
> > > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > --
> > > > > > > > Davanum Srinivas : http://wso2.com/blogs/
> > > > > > > >
> > > > > > >
> > > > > > >
> > > > > >
> > > > > >
> > > > > > --
> > > > > > Davanum Srinivas : http://wso2.com/blogs/
> > > > > >
> > > > > >
> > > >
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> > > > > >
> > > > > >
> > > > >
> > > > >
> > > >
> > > >
> > >
> > >
> > > --
> > > Davanum Srinivas : http://wso2.com/blogs/
> > >
> > >
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> > >
> > >
> > >
> >
> >
>
>
>
> --
> Davanum Srinivas : http://wso2.com/blogs/
>
>
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