No, I get the exception for all pages, also the ExpcetionReportPage for
example.
>
> -------- Original-Nachricht --------
> Datum: Thu, 9 Sep 2010 08:26:05 +0200
> Von: Christophe Cordenier <christophe.corden...@gmail.com>
> An: Tapestry users <users@tapestry.apache.org>
> Betreff: Re: Retrieve ActivationRequestParameters in custom
> PageResponseRenderer
>
> Weird, does you Index page extends a base class ?
>
> 2010/9/8 Markus Feindler <markus.feind...@gmx.de>
>
> > Sorry to bother you, but Im stuck with a DuplicateMemberException:
> > Caused by: java.lang.RuntimeException:
> > javassist.bytecode.DuplicateMemberException: duplicate method:
> > extractRequestParameters in de.wiv.tapestryportlet2.pages.Index
> > at
> >
> org.apache.tapestry5.internal.services.InternalClassTransformationImpl.addOverrideOfSuperclassMethod(InternalClassTransformationImpl.java:1458)
> > at
> >
> org.apache.tapestry5.internal.services.InternalClassTransformationImpl.findOrOverrideMethod(InternalClassTransformationImpl.java:1412)
> > at
> >
> org.apache.tapestry5.internal.services.InternalClassTransformationImpl.findOverrideOrCreateMethod(InternalClassTransformationImpl.java:1397)
> > at
> >
> org.apache.tapestry5.internal.services.InternalClassTransformationImpl.getOrCreateMethod(InternalClassTransformationImpl.java:1392)
> > at
> >
> org.apache.tapestry5.portlet.services.PortletRequestParameterWorker.transform(PortletRequestParameterWorker.java:48)
> > at
> >
> $ComponentClassTransformWorker_12af2cfc4c4.transform($ComponentClassTransformWorker_12af2cfc4c4.java)
> > at
> >
> $ComponentClassTransformWorker_12af2cfc4c5.transform($ComponentClassTransformWorker_12af2cfc4c5.java)
> > at
> >
> $ComponentClassTransformWorker_12af2cfc4b6.transform($ComponentClassTransformWorker_12af2cfc4b6.java)
> > at
> >
> org.apache.tapestry5.internal.services.ComponentClassTransformerImpl$1.run(ComponentClassTransformerImpl.java:194)
> > ... 250 more
> > Caused by: javassist.bytecode.DuplicateMemberException: duplicate
> method:
> > extractRequestParameters in de.wiv.tapestryportlet2.pages.Index
> > at
> javassist.bytecode.ClassFile.testExistingMethod(ClassFile.java:637)
> > at javassist.bytecode.ClassFile.addMethod(ClassFile.java:613)
> > at javassist.CtClassType.addMethod(CtClassType.java:1320)
> > at
> >
> org.apache.tapestry5.internal.services.InternalClassTransformationImpl.addOverrideOfSuperclassMethod(InternalClassTransformationImpl.java:1444)
> > ... 258 more
> >
> > This is my worker:
> >
> > public class PortletRequestParameterWorker implements
> > ComponentClassTransformWorker {
> >
> > private final ValueEncoderSource valueEncoderSource;
> > private final ComponentClassCache classCache;
> > private final RequestParameterContext requestParameterContext;
> > private final ComponentSource componentSource;
> >
> > public PortletRequestParameterWorker(ValueEncoderSource
> > valueEncoderSource,
> > ComponentClassCache classCache, RequestParameterContext
> > requestParameterContext,
> > ComponentSource componentSource) {
> > this.valueEncoderSource = valueEncoderSource;
> > this.classCache = classCache;
> > this.requestParameterContext = requestParameterContext;
> > this.componentSource = componentSource;
> > }
> >
> > public void transform(final ClassTransformation transformation,
> > MutableComponentModel model) {
> >
> >
> >
> transformation.addImplementedInterface(RequestParameterExtractor.class);
> > TransformMethodSignature extractMethod = new
> > TransformMethodSignature(Modifier.PUBLIC,
> > "Map<String, String>", "extractRequestParameters",
> null,
> > null);
> > // if (transformation.isDeclaredMethod(extractMethod)) {
> > // return;
> > // }
> >
> transformation.getOrCreateMethod(extractMethod).addAdvice(new
> > ComponentMethodAdvice(){
> >
> > public void advise(ComponentMethodInvocation invocation)
> {
> > Map<String, String> requestParameters = new
> > HashMap<String, String>();
> > for (TransformField field :
> >
> transformation.matchFieldsWithAnnotation(ActivationRequestParameter.class))
> > {
> > String parameterName = getParameterName(field,
> > field.getAnnotation(ActivationRequestParameter.class));
> > Class fieldType =
> > classCache.forName(field.getType());
> > FieldAccess access = field.getAccess();
> > ValueEncoder encoder =
> > valueEncoderSource.getValueEncoder(fieldType);
> > Object value =
> > access.read(invocation.getInstance());
> > if (value == null)
> > continue;
> > String clientValue = encoder.toClient(value);
> > requestParameters.put(parameterName,
> clientValue);
> > }
> > invocation.overrideResult(requestParameters);
> > }
> >
> > });
> > }
> >
> > private String getParameterName(TransformField field,
> > ActivationRequestParameter annotation)
> > {
> > if (annotation.value().equals(""))
> > return field.getName();
> >
> > return annotation.value();
> > }
> >
> > }
> >
> > Any ideas?
> >
> > Hi !
> >>
> >> Tapestry 5.2 has a brand new API for class manipulation in worker, you
> >> have
> >> to provide the method signature and implement the logic in a
> >> ComponentMethodAdvice (see PropertyWorker sources to have a simple
> >> example)
> >>
> >> HTH
> >>
> >> 2010/9/7 Markus Feindler<markus.feind...@gmx.de>
> >>
> >> So, I tried to follow your advice, but I don't see how to add a new
> >>> method
> >>> after calling
> >>> "transformation.addImplementedInterface(MyInterface.class)".
> >>> The documentation states to use transformation.getOrCreateMethod, but
> >>> where
> >>> to define the message body?
> >>>
> >>> Actually,
> >>>
> >>>> I would implement a ClassTransformation and add it to
> >>>> contributeComponentClassTransformWorker (see Tapestry Module), This
> >>>> worker
> >>>> should add and implement an interface that contains the method to
> >>>> extract
> >>>> useful information from the page
> >>>>
> >>>> Then in your PageResponseRenderer, you can use ComponentSource to
> get
> >>>> the
> >>>> page instance, cast it to your interface and call the method.
> >>>>
> >>>> 2010/9/6 Markus Feindler<markus.feind...@gmx.de>
> >>>>
> >>>> Thats the class I discovered earlier at work.
> >>>>
> >>>>> Now my question is how to get ClassTransformation and
> >>>>> MutableComponentModel
> >>>>> from the Page Object in the PageResponseRenderer?
> >>>>>
> >>>>> Thanks for you help/hints.
> >>>>>
> >>>>> Regards markus
> >>>>>
> >>>>> Hi
> >>>>>
> >>>>> Logic is enclosed in ActivationRequestParameterWorker, i think you
> can
> >>>>>> adapt
> >>>>>> this to your needs and extract values. At the moment, I don't see
> any
> >>>>>> other
> >>>>>> way to identify ActivationRequestParameters during link creation.
> >>>>>>
> >>>>>> 2010/9/6 Markus Feindler<markus.feind...@gmx.de>
> >>>>>>
> >>>>>> i would say you can get them from
> >>>>>>
> >>>>>> Request directly
> >>>>>>>
> >>>>>>>> This only works for the current request. I need to get the
> >>>>>>>> parameters,
> >>>>>>>>
> >>>>>>>> which will be set for the next request/redirect. It would be
> >>>>>>> possible
> >>>>>>> to
> >>>>>>> write get methods for the ActivationRequestParameters, but that
> would
> >>>>>>> not
> >>>>>>> be
> >>>>>>> the right way. I need to find out how that is solved internally.
> >>>>>>>
> >>>>>>>
> >>>>>>> Oh sorry, i had mis-read your first message. I didn't get deep
> into
> >>>>>>> this
> >>>>>>>
> >>>>>>> new
> >>>>>>>
> >>>>>>>> feature at the time, but at first glance, i would say you can
> get
> >>>>>>>> them
> >>>>>>>> from
> >>>>>>>> Request directly. Maybe, you can implement a worker that will be
> in
> >>>>>>>> charge
> >>>>>>>> of implementing an interface that will contain the method that
> >>>>>>>> return
> >>>>>>>> the
> >>>>>>>> values.
> >>>>>>>>
> >>>>>>>> I will go deeper to see if there is not a more simple way of
> doing
> >>>>>>>> this.
> >>>>>>>>
> >>>>>>>> 2010/9/6 Markus Feindler<markus.feind...@gmx.de>
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>
> >>>>>>>> Thats what Im doing right now for the PageActivationContext,
> but I
> >>>>>>>> also
> >>>>>>>>
> >>>>>>>> need the values for the ActivationRequestParameters (introduced
> in
> >>>>>>>>> 5.2:
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> http://tapestry.apache.org/tapestry5.2-dev/apidocs/org/apache/tapestry5/annotations/ActivationRequestParameter.html
> >>>>>>>>> ).
> >>>>>>>>>
> >>>>>>>>> Hi
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>> So why not passivate the page, see
> PageActivationContextCollector
> >>>>>>>>> ?
> >>>>>>>>>
> >>>>>>>>> This
> >>>>>>>>>> is
> >>>>>>>>>> how it works to create links.
> >>>>>>>>>>
> >>>>>>>>>> 2010/9/5 Markus Feindler<markus.feind...@gmx.de>
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>> No, Im trying to upgrade "my" portlet implementation from
> 5.1 to
> >>>>>>>>>> 5.2
> >>>>>>>>>>
> >>>>>>>>>> and
> >>>>>>>>>>> up to now the activationrequestparameters aren't put in the
> url,
> >>>>>>>>>>> cause
> >>>>>>>>>>> I
> >>>>>>>>>>> have to adjust my former 5.1 custom response renderer. If the
> >>>>>>>>>>> Request
> >>>>>>>>>>> is
> >>>>>>>>>>> an
> >>>>>>>>>>> ActionRequest (see Portlet lifecycle) you can't write output
> into
> >>>>>>>>>>> a
> >>>>>>>>>>> stream
> >>>>>>>>>>> instead a redirect is done internally in the portlet
> container.
> >>>>>>>>>>> Therefore
> >>>>>>>>>>> I
> >>>>>>>>>>> have to add the parameters to the ActionReponse
> >>>>>>>>>>> (_actionResponse.setRenderParameter). In order to do so I
> need to
> >>>>>>>>>>> get
> >>>>>>>>>>> the
> >>>>>>>>>>> parameters.
> >>>>>>>>>>>
> >>>>>>>>>>> That's not enough details.
> >>>>>>>>>>>
> >>>>>>>>>>>
> >>>>>>>>>>>
> >>>>>>>>>>>
> >>>>>>>>>>> -- Josh
> >>>>>>>>>>>
> >>>>>>>>>>> On Sep 5, 2010, at 9:51 AM, Markus Feindler<
> >>>>>>>>>>>> markus.feind...@gmx.de>
> >>>>>>>>>>>> wrote:
> >>>>>>>>>>>>
> >>>>>>>>>>>> Need it for portlet implementation.
> >>>>>>>>>>>>
> >>>>>>>>>>>>
> >>>>>>>>>>>>
> >>>>>>>>>>>>
> >>>>>>>>>>>>
> >>>>>>>>>>>> Hi
> >>>>>>>>>>>>
> >>>>>>>>>>>>> What is the purpose ? I guess you are dealing with some
> kind of
> >>>>>>>>>>>>>> dynamic
> >>>>>>>>>>>>>> stuff, please can you give more details ?
> >>>>>>>>>>>>>>
> >>>>>>>>>>>>>> 2010/9/5 Markus Feindler<markus.feind...@gmx.de>
> >>>>>>>>>>>>>>
> >>>>>>>>>>>>>> Hey folks,
> >>>>>>>>>>>>>>
> >>>>>>>>>>>>>>
> >>>>>>>>>>>>>>
> >>>>>>>>>>>>>>
> >>>>>>>>>>>>>> I need to access page field values annotated with
> >>>>>>>>>>>>>>
> >>>>>>>>>>>>>> ActivationRequestParameters in order to retrieve the
> values.
> >>>>>>>>>>>>>>> Reflection
> >>>>>>>>>>>>>>> doesnt work, because the fields are private and a
> >>>>>>>>>>>>>>> java.lang.IllegalAccessException is thrown. Whats the
> right
> >>>>>>>>>>>>>>> way
> >>>>>>>>>>>>>>> to
> >>>>>>>>>>>>>>> retrieve
> >>>>>>>>>>>>>>> the values / activation request parameters?
> >>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>> Regards
> >>>>>>>>>>>>>>> Markus
> >>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>
> ---------------------------------------------------------------------
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> >>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>
> ---------------------------------------------------------------------
> >>>>>>>>>>>>>>>
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> >>>>>>>>>>>>>
> >>>>>>>>>>>>>
> >>>>>>>>>>>>>
> >>>>>>>>>>>>>
> >>>>>>>>>>>>>
> >>>>>>>>>>>>>
> ---------------------------------------------------------------------
> >>>>>>>>>>>>>
> >>>>>>>>>>>>>
> >>>>>>>>>>>>>
> >>>>>>>>>>>>>
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> >>>>>>>>>>>>
> >>>>>>>>>>>>
> >>>>>>>>>>>>
> >>>>>>>>>>>>
> >>>>>>>>>>>>
> >>>>>>>>>>>>
> >>>>>>>>>>>>
> >>>>>>>>>>>>
> >>>>>>>>>>>>
> ---------------------------------------------------------------------
> >>>>>>>>>>>>
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> >>>>>>>>>>>
> >>>>>>>>>>>
> >>>>>>>>>>>
> >>>>>>>>>>>
> >>>>>>>>>>>
> >>>>>>>>>>>
> >>>>>>>>>>>
> >>>>>>>>>>>
> >>>>>>>>>>>
> ---------------------------------------------------------------------
> >>>>>>>>>>
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> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
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> >>>>>>>
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> >>>>>>>
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> >>>>>
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> >>>
> >>>
> >>>
> >>
> >
>
>
> --
> Regards,
> Christophe Cordenier.
>
> Committer on Apache Tapestry 5
> Co-creator of wooki @wookicentral.com
>
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