On Tue, Apr 29, 2008 at 4:49 PM, Marian, Radu <[EMAIL PROTECTED]>
wrote:
> Simon,
>
> Thanks for your reply. I have actually changed the code to:
> SCANode2Factory nodeFactory = SCANode2Factory.newInstance();
> SCANode2Factory.SCAContribution contribution = new
> SCANode2Factory.SCAContribution("Service Provider Classes",
> urlServiceProviderClassesDir.toString());
> node = nodeFactory.createSCANode(urlComposite.toString(),
> sCompositeContents, contribution);
>
> node.start();
> lifeCycleProcessor =
> ((SCAClient)node).getService(LifeCycleProcessorImpl.class,
> "ConsumerFacadeLifecycleComponent");
>
> Works ok - I am in the middle of debugging.
>
> Question - do I need to configure TuscanyServletFilter in web.xml? I am
> using node2 api.
>
> Thanks,
> Radu Marian
> CRM Services Architecture Team
> Bank of America, Charlotte NC
> (980) 387-6233
> [EMAIL PROTECTED]
>
> -----Original Message-----
> From: Simon Laws [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, April 29, 2008 10:49 AM
> To: tuscany-user@ws.apache.org
> Subject: Re: Is there are simple straightforward way of creating a
> Compoisite
>
> On Mon, Apr 28, 2008 at 6:27 PM, Simon Laws <[EMAIL PROTECTED]>
> wrote:
>
> >
> >
> > On Mon, Apr 28, 2008 at 5:36 PM, Marian, Radu <
> > [EMAIL PROTECTED]> wrote:
> >
> > > Simon,
> > >
> > > Thanks for your prompt response. I hope the following api will let
> > > me do what I need - compositeContent :
> > > /**
> > > * Creates a new SCA node.
> > > *
> > > * @param compositeURI the URI of the composite to use
> > > * @param compositeContent the XML content of the composite to
> use
> > > * @param contributions the URI of the contributions that
> > > provides the composites and related artifacts
> > > * @return a new SCA node.
> > > */
> > > public abstract SCANode2 createSCANode(String compositeURI,
> > > String compositeContent, SCAContribution... contributions);
> > >
> > > However I could not find it in the latest 1.2 release... :( sorce
> > > code or binaries...
> > >
> > > Any idea? Should I get a nightly?
> > >
> > > Regards,
> > > Radu Marian
> > > CRM Services Architecture Team
> > > Bank of America, Charlotte NC
> > > (980) 387-6233
> > > [EMAIL PROTECTED]
> > >
> > > -----Original Message-----
> > > From: Simon Laws [mailto:[EMAIL PROTECTED]
> > > Sent: Monday, April 28, 2008 11:54 AM
> > > To: tuscany-user@ws.apache.org
> > > Subject: Re: Is there are simple straightforward way of creating a
> > > Compoisite
> > >
> > > On Mon, Apr 28, 2008 at 4:14 PM, Marian, Radu
> > > <[EMAIL PROTECTED]>
> > > wrote:
> > >
> > > > Hello,
> > > >
> > > > I have spent quite a few time through ContributionServiceImpl
> > > > class and could not find a simple way to add a Composite to the
> > > > contributiion - given the InputStream of the composite URL. I
> > > > understand tuscany team wants to provide the ease of use for
> > > > compoistes to be discovered from the file system.... However - IMO
>
> > > > - the api should not prevent one from loading/adding a composite
> > > > from an
> > > InputStream.
> > > >
> > > > Why is everything have to be served from local file system? Does
> > > > the sca spec mandate that?
> > > >
> > > > Thanks,
> > > > Radu.
> > > >
> > >
> > > Hi Radu
> > >
> > > You catch us at a point of transition. The spec doesn't mandate that
>
> > > contributions/composites be read from the local files system
> > > although most of our samples do this as they use the
> > > DefaultSCADomain implementation from the host-embedded module.
> > >
> > > There has been work recently on new code to allow for easier and
> > > more consistent processing of contributions and composites and for
> > > deployment of these out to the nodes where they will run. Hence
> > > there is a new runtime interface, see node2-api [1], that can be
> > > used to fire up the Tuscany runtime classes and run a composite.
> > >
> > > A node expects to be provided with a single composite and all of the
>
> > > contributions required to run that composite. This information can
> > > be provided in a number of ways
> > >
> > > /**
> > > * Creates a new SCA node.
> > > *
> > > * @param configurationURI the URI of the node configuration
> > > * @return a new SCA node.
> > > */
> > > public abstract SCANode2 createSCANode(String configurationURI);
> > >
> > > /**
> > > * Creates a new SCA node.
> > > *
> > > * @param compositeURI the URI of the composite to use
> > > * @param contributions the URI of the contributions that
> > > provides the composites and related artifacts
> > > * @return a new SCA node.
> > > */
> > > public abstract SCANode2 createSCANode(String compositeURI,
> > > SCAContribution... contributions);
> > >
> > > /**
> > > * Creates a new SCA node.
> > > *
> > > * @param compositeURI the URI of the composite to use
> > > * @param compositeContent the XML content of the composite to
> use
> > > * @param contributions the URI of the contributions that
> > > provides the composites and related artifacts
> > > * @return a new SCA node.
> > > */
> > > public abstract SCANode2 createSCANode(String compositeURI,
> > > String compositeContent, SCAContribution... contributions);
> > >
> > > If you did want to use this to load contributions from the file
> > > system you can, see [2] for an example (although we don't have the
> > > helper methods in place just yet to make this really easy).
> > > Alternatively you can start a node up and have it read it's
> > > configuration across the network, for example, see one of the nodes
> > > from the distributed calculator sample [3]. There isn't an interface
>
> > > here that takes an input stream but you can provide a composite as a
>
> > > string which of course can come from where ever you want it to.
> > >
> > > You will note in the distributed calculator sample that there is
> > > "LaunchDomain.java" also. This launches a web app that provides the
> > > environment in which you can manage you contributions and which will
>
> > > vend them out across the network to nodes using an Atom feed.
> > >
> > > There is very little documentation on all of this yet. It's very
> > > much on the TODO list. It's all pretty new and we'd love to hear any
>
> > > comments you have or ideas for improvement.
> > >
> > > Hope that helps
> > >
> > > Simon
> > >
> > > [1]
> > > http://svn.apache.org/repos/asf/incubator/tuscany/java/sca/modules/n
> > > ode2
> > > -api/src/main/java/org/apache/tuscany/sca/node/SCANode2Factory.java<
> > > http://svn.apache.org/repos/asf/incubator/tuscany/java/sca/modules/n
> > > ode2-api/src/main/java/org/apache/tuscany/sca/node/SCANode2Factory.j
> > > ava>
> > > [2]
> > > http://svn.apache.org/repos/asf/incubator/tuscany/java/sca/itest/val
> > > idat
> > > ion/src/test/java/calculator/DuplicateComponentNameTestCase.java<htt
> > > p://svn.apache.org/repos/asf/incubator/tuscany/java/sca/itest/valida
> > > tion/src/test/java/calculator/DuplicateComponentNameTestCase.java>
> > > [3]
> > > http://svn.apache.org/repos/asf/incubator/tuscany/java/sca/samples/c
> > > alcu
> > > lator-distributed/src/main/java/node/LaunchCalculatorNodeA.java<http
> > > ://svn.apache.org/repos/asf/incubator/tuscany/java/sca/samples/calcu
> > > lator-distributed/src/main/java/node/LaunchCalculatorNodeA.java>
> > >
> >
> > Yes, apologies Radu, I should have mentioned that it isn't in the
> > latest release. It is a work in progress and has only recently gone
> into the API.
> > As you can also guess the "node2" code is intended to replace "node"
> > shortly as node2 is new and takes a slightly different view on the way
>
> > that the runtime should be started.
> >
> > To try it out I would normally advise you to either check the trunk
> > source code out of subversion or take one of our nightly builds.
> > However I've just been to check the nightly build link from our
> > download page and it's not working today (for me at least) as there
> > seems to be a problem with the continuum build system. Your only
> > option at the moment is to take the code from subversion in the mean
> > time. There are instructions here [1]. If you can't face that let us
> know and I'm sure we can sort something out.
> >
> > Regards
> >
> > Simon
> >
> > [1]
> > http://incubator.apache.org/tuscany/sca-java-development-guide.html
> >
>
>
> Hi Radu
>
> With reference to your mail over on the other thread [1] (confused me
> for a moment;-). I have a question. You pasted the code...
>
> SCANode2Factory nodeFactory = SCANode2Factory.newInstance();
> SCANode2Factory.SCAContribution[] contributions = new
> SCANode2Factory.SCAContribution[0];
> SCANode2 node =
> nodeFactory.createSCANode(urlComposite.toURI().toString(),
> sCompositeContents, contributions);
>
>
> Is this complete? I would expect to see you adding some details to the
> contribution for example, for a contribution on your local disc you
> could do...
>
> SCANode2Factory.SCAContribution contributions = new
> SCANode2Factory.SCAContribution("TestContribution",
>
>
> new
> File("src/main/resources/DuplicateComponentName").toURL().toString());
>
> Of course using an array if you need to add more than one contribution.
> The contribution should contain the artifacts that the composite
> requires, such as the component implementations, and WSDL or XSD/XML
> files etc.
>
> Regards
>
> Simon
>
> [1]
> http://www.mail-archive.com/tuscany-user%40ws.apache.org/msg03030.html
>
Hi Radu
The tuscany web app support doesn't use this evolving node implementation
just yet. I don't imagine it would be difficult to plug it in but we would
need to decide how it's going to work in the context of a webapp. For
example, what does a contribution mean in a webapp? There have been lots of
threads about this kind of thing in the past and I can point you at a few
but I would welcome your thoughts first if you are looking in this
direction.
Our current host-webapp support uses the old runtime implementation from
host-embedded IIRC and treats the webapp itself as a contribution. It plugs
into the webapp through a filter configuration in web.xml.
Regards
Simon
