The solution is to the MetaWorker issue is to add @Primary with @Contribute(
ComponentClassTransformWorker2). There is a dependency that I honestly
haven't spent the time to understand, but I happened upon a jira ticket that
pointed the way.
On Aug 27, 2011 6:16 AM, "Steve Eynon" <steve.ey...@alienfactory.co.uk>
wrote:
> Hi,
>
> I was converting some components from T5.2 to T5.3 and I came across
> some confusing behaviour / error messages. The following replicates
> what I found:
>
> If you put the following in your module - i.e. contributing to the new
> ComponentClassTransformWorker2
>
> @Contribute(ComponentClassTransformWorker2.class)
> public static void
>
notMetaWorkerContributions(OrderedConfiguration<ComponentClassTransformWorker2>
> configuration) {
> configuration.add("NotMetaWorker", new ComponentClassTransformWorker2() {
> public void transform(PlasticClass plasticClass,
> TransformationSupport support, MutableComponentModel model) {}
> });
> }
>
> then you receive the following error message about trying to
> contribute a MetaWorker...?
>
> Registry - Service 'MetaWorker' is configured using
> org.apache.tapestry5.ioc.MappedConfiguration, not
> org.apache.tapestry5.ioc.OrderedConfiguration.
> Registry - Operations trace:
> Registry - [ 1] Constructing instance of page class
> com.alienfactory.thag.web.pages.Index
> Registry - [ 2] Creating ComponentAssembler for
> com.alienfactory.thag.web.pages.Index
> Registry - [ 3] Creating instantiator for component class
> com.alienfactory.thag.web.pages.Index
> Registry - [ 4] Running component class transformations on
> com.alienfactory.thag.web.base.ArticlePageBase
> Registry - [ 5] Realizing service MetaWorker
> Registry - [ 6] Invoking service creator
> org.apache.tapestry5.internal.services.meta.MetaWorkerImpl(Map) (at
> MetaWorkerImpl.java:33) via
> org.apache.tapestry5.services.TapestryModule.bind(ServiceBinder) (at
> TapestryModule.java:303)
> Registry - [ 7] Invoking constructor
> org.apache.tapestry5.internal.services.meta.MetaWorkerImpl(Map) (at
> MetaWorkerImpl.java:33) via
> org.apache.tapestry5.services.TapestryModule.bind(ServiceBinder) (at
> TapestryModule.java:303)
> Registry - [ 8] Determining injection value for parameter #1
(java.util.Map)
> Registry - [ 9] Collecting mapped configuration for service MetaWorker
> Registry - [10] Invoking method
>
com.alienfactory.thag.web.services.ThagModule.contributeComponentClassTransformWorker(OrderedConfiguration)
> (at ThagModule.java:81).
> Registry - [11] Determining injection value for parameter #1
> (org.apache.tapestry5.ioc.OrderedConfiguration)
> MetaWorker - Construction of service MetaWorker failed: Error invoking
> constructor
org.apache.tapestry5.internal.services.meta.MetaWorkerImpl(Map)
> (at MetaWorkerImpl.java:33) via
> org.apache.tapestry5.services.TapestryModule.bind(ServiceBinder) (at
> TapestryModule.java:303) (for service 'MetaWorker'): Error invoking
> service contribution method
>
com.alienfactory.thag.web.services.ThagModule.contributeComponentClassTransformWorker(OrderedConfiguration):
> Service 'MetaWorker' is configured using
> org.apache.tapestry5.ioc.MappedConfiguration, not
> org.apache.tapestry5.ioc.OrderedConfiguration.
>
> So I removed the @Contribute annotation and tried the method name
> convention and received:
>
> public static void contributeComponentClassTransformWorker2(...)
>
> java.lang.IllegalArgumentException: Contribution
>
com.alienfactory.thag.web.services.ThagModule.contributeComponentClassTransformWorker2(OrderedConfiguration)
> (at ThagModule.java:79) is for service
> 'ComponentClassTransformWorker2', which does not exist.
>
> Trying the older deprecated ComponentClassTransformWorker gives an
> (expected) error:
>
> @Contribute(ComponentClassTransformWorker.class)
> public static void notMetaWorkerContributions(...)
>
> java.lang.IllegalArgumentException: Contribution
>
com.alienfactory.thag.web.services.ThagModule.notMetaWorkerContributions(OrderedConfiguration)
> (at ThagModule.java:82) is for service 'interface
> org.apache.tapestry5.services.ComponentClassTransformWorker' qualified
> with marker annotations [], which does not exist.
>
> Finally, if you try the method name convention for the deprecated
> ComponentClassTransformWorker then all works fine:
>
> public static void
>
contributeComponentClassTransformWorker(OrderedConfiguration<ComponentClassTransformWorker2>
> configuration) {
> configuration.add("NotMetaWorker", new ComponentClassTransformWorker2() {
> public void transform(PlasticClass plasticClass,
> TransformationSupport support, MutableComponentModel model) {}
> });
> }
>
> Can anyone explain what is going on? For it made the upgrade a little
tricky.
>
> I did find the following in TapestryModule which explains why only the
> deprecated service exists but my T5-IoC foo fell short of deciphering
> the other error messages.
>
> @Marker(Primary.class)
> public ComponentClassTransformWorker2 buildComponentClassTransformWorker(
> List<ComponentClassTransformWorker2> configuration) {
> return chainBuilder.build(ComponentClassTransformWorker2.class,
> configuration);
> }
>
> Cheers,
>
> Steve.
>
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