Re: wicket and flow

[Martin Grigorov <mg...@apache.org>]

Hi,

You can do all this with a custom root request mapper.


On Sat, Jun 29, 2013 at 2:50 PM, Piratenvisier
<ha...@yahoo.de>wrote:

> Hello Martin,
> a  central class in Webflow is  PageFlowRequestCycleProcessor:
>
>
> public class PageFlowRequestCycleProcessor extends WebRequestCycleProcessor
> {
>
>     /** {@inheritDoc} */
>     @Override
>     public IRequestTarget_*resolve*_(**RequestCycle requestCycle,
> RequestParameters requestParameters)
>     {
>         //If Key in URL use it
>         if(requestParameters.**getParameters().containsKey(**
> PageFlowConstants.FLOW_**EXECUTION_KEY))
>         {
>             String[] flowExecutionKeyParms = (String[])requestParameters.*
> *getParameters().get(**PageFlowConstants.FLOW_**EXECUTION_KEY);
>             if(flowExecutionKeyParms.**length > 0){
>                 return RequestTargetFactory.**buildFromState(**flowExecutionKeyParms[0],
> requestCycle, requestParameters);
>             }
>         }
>
>         IRequestTarget target = super.resolve(requestCycle,
> requestParameters);
>
>         // If the target is bookmarkable but mounted it needs to go back
> and check pageflow
>         if (target instanceof BookmarkablePageRequestTarget)
>         {
> //            BookmarkablePageRequestTarget bookmarkableTarget = (**
> BookmarkablePageRequestTarget)**target;
>
> //            if (PAGE_FLOW_PAGE_CLASS.**isAssignableFrom(**
> bookmarkableTarget.**getPageClass()) ||
> //                PANEL_FLOW_PAGE_CLASS.**isAssignableFrom(**
> bookmarkableTarget.**getPageClass()))
> //            {
>                 String currentStateFromSession = PageFlowSession.get().**
> getFlowState().**getCurrentViewState();
>                 return RequestTargetFactory.**buildFromState(**currentStateFromSession,
> requestCycle, requestParameters);
> //            }
>         }
>
>         return target;
>     }
>
>     /** {@inheritDoc} */
>     @Override
>     protected IRequestTarget _*resolveHomePageTarget*_(**RequestCycle
> requestCycle, RequestParameters requestParameters)
>     {
>
>         //Grab the target as Wicket would normally calculate it
>         BookmarkablePageRequestTarget classicTarget =(**BookmarkablePageRequestTarget)
> super.resolveHomePageTarget(**requestCycle, requestParameters);
>         BookmarkablePageRequestTarget newTarget =  resolvePageFlowTargets(
> **classicTarget,requestCycle,**requestParameters);
>
>         //If the target that PageFlow is returning isn't the real home
> page we need to redirect to it.
>         if(!classicTarget.**getPageClass().equals(**
> newTarget.getPageClass())){
>
>             //Redirect to the homepage if session is trying to go to the
> end of the flow since we are restarting it
>             String currentStateFromSession = PageFlowSession.get().**
> getFlowState().**getCurrentViewState();
>             if(PageFlowConstants.PAGE_**FLOW_FINAL_STATE_DONE.equals(**
> currentStateFromSession)){
>                 //Reset the whole flow state in preparation for a new flow
>                 PageFlowSession.get().**resetFlowState();
>
>                 // This line is to reset the target because the flowstate
> was just reset so the url needs to be regenerated
>                 classicTarget =(**BookmarkablePageRequestTarget)
> super.resolveHomePageTarget(**requestCycle, requestParameters);
>
>                 return classicTarget;
>             }
>
>             throw new RestartResponseException(**newTarget.getPageClass(),
> newTarget.getPageParameters())**;
>         }
>
>         return resolvePageFlowTargets(**classicTarget,requestCycle,**
> requestParameters);
>     }
>
>     /** {@inheritDoc} */
>     @Override
>     protected IRequestTarget _*resolveBookmarkablePage*_(**RequestCycle
> requestCycle, RequestParameters requestParameters)
>     {
>         //Grab the target as Wicket would normally calculate it
>         BookmarkablePageRequestTarget classicTarget =(**BookmarkablePageRequestTarget)
> super.resolveBookmarkablePage( requestCycle,  requestParameters);
>
>         return resolvePageFlowTargets(**classicTarget,requestCycle,**
> requestParameters);
>     }
>
>     /**
>      * <p>resolvePageFlowTargets.</p>
>      *
>      * @param classicTarget a {@link org.apache.wicket.request.**
> target.component.**BookmarkablePageRequestTarget} object.
>      * @param requestCycle a {@link org.apache.wicket.**RequestCycle}
> object.
>      * @param requestParameters a {@link org.apache.wicket.request.**RequestParameters}
> object.
>      * @return a {@link org.apache.wicket.request.**target.component.**BookmarkablePageRequestTarget}
> object.
>      */
>     protected BookmarkablePageRequestTarget _resolvePageFlowTargets_(**BookmarkablePageRequestTarget
> classicTarget, RequestCycle requestCycle, RequestParameters
> requestParameters)
>     {
>         BookmarkablePageRequestTarget target = null;
>
>         String currentStateFromSession = PageFlowSession.get().**
> getFlowState().**getCurrentViewState();
>         //If the target still hasn't been set, target from the user's
> session data
>         if(currentStateFromSession != null)
>         {
>             target = RequestTargetFactory.**buildFromState(**currentStateFromSession,
> requestCycle, requestParameters);
>         }
>
>         //TODO if the target is null, redirect back to the last rendered
> page, or the homepage
>         if(target == null)
>         {
>             target = classicTarget;
>         }
>
>         return target;
>     }
> }
>
> For which Mappers should I look in these cases ?
>
> Best regards
> Heiner
>
> Am 18.06.2013 11:37, schrieb Piratenvisier:
>
>  Thank you Martin.
>> Now I started another evaluation process after studying spring Webflow
>> and Seam
>> an especially this discussion <http://http://ptrthomas.**
>> wordpress.com/2007/03/02/**wicket-impressions-moving-**
>> from-spring-mvc-webflow/<http://ptrthomas.wordpress.com/2007/03/02/wicket-impressions-moving-from-spring-mvc-webflow/>>
>> lets me think more profoundly about the subject.
>> In cocoon I tried the flow subject with spring apllicationXML files
>> After some time with growing XML-structures it was rather tedious to find
>> out the reason
>> of a flow problem. In wicket I tried it with HashMap in the
>> Wicketapplication.
>> But the maintenance became also tedious. After the above discussion I
>> think I will try it more with special Components and
>> and Inheritance.
>> Best regards
>> Heiner
>>
>> Am 16.06.2013 11:36, schrieb Martin Grigorov:
>>
>>> Hi,
>>>
>>> Some guys created integration of Wicket 1.4 with Spring WebFlow (
>>> https://github.com/**wicketstuff/core/tree/core-1.**
>>> 4.x/jdk-1.5-parent/spring-**webflow-parent<https://github.com/wicketstuff/core/tree/core-1.4.x/jdk-1.5-parent/spring-webflow-parent>
>>> ).
>>> You may find it interesting and update it to newer versions of both
>>> Wicket
>>> and Spring WebFlow.
>>>
>>>
>>> On Sun, Jun 16, 2013 at 7:34 AM, Piratenvisier
>>> <ha...@yahoo.de>**wrote:
>>>
>>>  Is there any support to structure the flow of pages and forms.
>>>> I build for my realestate software structures, defining a state of a
>>>> page,
>>>> the visibility of the links and tabs, the pages a link calls in this
>>>> state,
>>>>   database action to be done and the pageparameters
>>>> the link tranfers to the new page.
>>>>
>>>> But maybe there are more intelligent ways to organize this.
>>>>
>>>>
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>>>>
>>>>
>>
>