I have noticed that in the retrieveVisit method of
InjectStateWorker.java :
visit = (Visit) _applicationStateManager.get("visit")
;
But in the hivemodule.xml, the state object name is
'Visit' with a captial V.
You might like to rename 'visit' to something else.
I do not know whether it would conflict with the
default visit object (the one that could be specified
in
.application.)
I have written up an example on injecting an aso into
a service and put it on
http://lombok.demon.co.uk/tapestry4Demo
If you like, you can take a look and see if it helps.
Shing
--- Finster Hannon <[EMAIL PROTECTED]> wrote:
> I would like to get access to my ASO 'Visit' from a
> servlet filter let's
> say. I have used a piece I saw Howard post where I
> am subclassing the
> ApplicationServlet which will provide access to the
> HiveMind (HM)
> registry. I would think then calling from anywhere
> in the app to the
> servlet would give me the HM registry. Once I have
> the registry, I
> would think I can access it's services. I saw an
> example of injecting
> an ASO into a POJO using a service and implemented
> that below. It is
> not really the ASO getting injected, rather it is
> the
> ApplicationStateManager (ASM) getting injected. I
> am getting the
> service, getting the ASM, but when attempting to get
> 'Visit' from the
> ASM, an exception is thrown visible in the logging
> below. I then moved
> my call to a page class to see if that would change
> things and it did
> not. Debugging my servlet shows the registry
> obtained has many services
> including mine.
>
> I have seen many references to 'HiveUtils
> ObjectBuilder' and would like
> to get this working before attempting use of that.
> Also saw in this
> list: 'how to inject visit object into pojo', 'how
> to inject aso in
> service', 'injecting an aso into a hivemind
> service', and 'injecting
> an aso into a service' which all relate to this
> post.
>
> Can I get the HM registry from my servlet and is it
> valid? Is there
> another way to get the registry? Suggestions on
> getting the ASO 'Visit'
> from a POJO? Is my code invalid?
>
> Thanks,
> Joseph
>
> The call:
> IInjectEnhancementWorker stateWorker =
> (IInjectEnhancementWorker)
>
ApplyServlet.getRegistry().getService(IInjectEnhancementWorker.class);
>
> Some logging:
> Getting HM Registry..........
> ASM: <OuterProxy for
>
tapestry.state.ApplicationStateManager(org.apache.tapestry.engine.state.ApplicationStateManager)>
> Visit is not yet defined: Property 'webRequest' of
> <OuterProxy for
>
tapestry.globals.RequestGlobals(org.apache.tapestry.services.RequestGlobals)>
>
> is null.
>
> hivemodule.xml:
> <?xml version="1.0" encoding="utf-8"?>
> <module id="apply" version="1.0.0"
> package="foo.apply.hivemind">
> <contribution
>
configuration-id="tapestry.state.ApplicationObjects">
> <state-object name="Visit" scope="session">
> <create-instance
> class="foo.apply.application.Visit"/>
> </state-object>
> </contribution>
>
> <service-point id="InjectStateWorker"
>
interface="foo.apply.hivemind.IInjectEnhancementWorker">
> <invoke-factory>
> <construct
> class="foo.apply.hivemind.InjectStateWorker">
> <!--<set-service
> property="applicationStateManager"
>
service-id="tapestry.state.ApplicationStateManager"/>-->
> <set-object
> property="applicationStateManager"
> value="infrastructure:applicationStateManager"/>
> </construct>
> </invoke-factory>
> </service-point>
> </module>
>
> Servlet:
> public class ApplyServlet extends ApplicationServlet
> {
> Logger log =
> Utility.fetchLogger(ApplyServlet.class) ;
> private static Registry sRegistry ;
> private static final String REGISTRY_KEY =
> "org.apache.tapestry.Registry:apply" ;
>
> public void init(ServletConfig config)
> throws ServletException {
> super.init(config) ;
>
> log.debug ("Pre getting registry...") ;
> Registry r = (Registry)
> getServletContext().getAttribute(REGISTRY_KEY) ;
> log.debug ("Registry='" + r.toString() + "'")
> ;
> sRegistry = r ;
> }
>
> public static Registry getRegistry() {
> return sRegistry ;
> }
> }
>
> Service interface:
> public interface IInjectEnhancementWorker {
> public void
> setApplicationStateManager(ApplicationStateManager
> manager) ;
> public ApplicationStateManager
> getApplicationStateManager() ;
>
> public Visit retrieveVisit () ;
> }
>
> Service POJO:
> public class InjectStateWorker implements
> IInjectEnhancementWorker {
> private Logger log =
> Utility.fetchLogger(InjectStateWorker.class) ;
> private ApplicationStateManager
> _applicationStateManager ;
>
> public void
> setApplicationStateManager(ApplicationStateManager
> manager) {
> _applicationStateManager = manager ;
> }
>
> public ApplicationStateManager
> getApplicationStateManager() {
> return _applicationStateManager ;
> }
>
> public Visit retrieveVisit () {
> Visit visit = null ;
>
> try {
> log.debug ("ASM: " +
> _applicationStateManager) ;
> visit = (Visit)
> _applicationStateManager.get("visit") ;
> }
> catch (Exception e) {
> log.info ("Visit is not yet defined: " +
> e.getMessage()) ;
> }
>
> return visit ;
> }
> }
>
>
>
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