Accessing Portal Service from web dynpro : NoClassDefFoundError
Hello Experts,
I tried to develop a portal service (EquiService) and a web dynpro application (wdequset) which accesses the portal service. I put my web dynpro in an IView to show it in the portal. The service is running but when I try to open the IView I always get an error. I debugged my web dynpro application and found out that I didnt get a reference to the service (portalEquiService is always null). See the following code and have a look to my comments.
public void wdDoInit()
//@@begin wdDoInit()
String key = IEquiService.KEY;
* Here I get the right key. Thats OK so far.
// IEquiService portalEquiService = (IEquiService)PortalRuntime.getRuntimeResources().getService(key);
* When I use this line to get an instance of the service, I get the following error:
* java.lang.NoClassDefFoundError: com/sapportals/portal/prt/runtime/PortalRuntime
* The package "com.sapportals.portal.prt.runtime.*" is imported
IEquiService portalEquiService = (IEquiService) WDPortalUtils.getServiceReference(key);
* I found this in the "How to Access a Portal Service Within a WebDynpro Java Application" document.
* When I use this line, I get the following error:
* java.lang.NoClassDefFoundError: com/company/service/equi/IEquiService
* The package "com.company.service.equi.IEquiService" is also imported.
wdContext.currentContextElement().setEquinummer(portalEquiService.getEquiData().getEquiNr());
//@@end
When I have a look to the service in the portal I see that the service is running and the following additional lines under Dependents:
service: psequinr|EquiService
SAPJ2EE::company.com/wdequset
So the service seems to know my web dynpro application (after debugging for the first time).
Detailed error information 1 (when I try to get the reference by PortalRuntime.getRuntimeResources().getService(key) ):
java.lang.NoClassDefFoundError: com/sapportals/portal/prt/runtime/PortalRuntime
at com.company.service.ServiceCust.wdDoInit(ServiceCust.java:107)
at com.company.service.wdp.InternalServiceCust.wdDoInit(InternalServiceCust.java:112)
at com.sap.tc.webdynpro.progmodel.generation.DelegatingCustomController.doInit(DelegatingCustomController.java:73)
at com.sap.tc.webdynpro.progmodel.controller.Controller.initController(Controller.java:215)
at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:200)
at com.sap.tc.webdynpro.progmodel.controller.Component.getCustomControllerInternal(Component.java:436)
at com.sap.tc.webdynpro.progmodel.controller.Component.getMappableContext(Component.java:374)
at com.sap.tc.webdynpro.progmodel.controller.Component.getMappableContext(Component.java:403)
at com.sap.tc.webdynpro.progmodel.context.MappedAttributeInfo.initAttributeMapping(MappedAttributeInfo.java:319)
at com.sap.tc.webdynpro.progmodel.context.MappedAttributeInfo.init(MappedAttributeInfo.java:278)
at com.sap.tc.webdynpro.progmodel.context.NodeInfo.initAttributes(NodeInfo.java:674)
at com.sap.tc.webdynpro.progmodel.context.DataNodeInfo.doInit(DataNodeInfo.java:238)
at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:659)
at com.sap.tc.webdynpro.progmodel.context.Context.init(Context.java:40)
at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:199)
at com.sap.tc.webdynpro.progmodel.view.ViewManager.getView(ViewManager.java:539)
at com.sap.tc.webdynpro.progmodel.view.ViewManager.bindRoot(ViewManager.java:421)
at com.sap.tc.webdynpro.progmodel.view.ViewManager.init(ViewManager.java:130)
at com.sap.tc.webdynpro.progmodel.view.InterfaceView.initController(InterfaceView.java:41)
at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:200)
at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.displayToplevelComponent(ClientComponent.java:135)
at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.init(ClientApplication.java:404)
at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:618)
at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:59)
at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:251)
at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doWebDynproProcessing(DispatcherServlet.java:154)
at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:116)
at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doGet(DispatcherServlet.java:48)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:401)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:266)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:387)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:365)
at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:944)
at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:266)
at com.sap.engine.services.httpserver.server.Client.handle(Client.java:95)
at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:160)
at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
at java.security.AccessController.doPrivileged(Native Method)
at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100)
at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)
Detailed error information 2 (when I tryto get reference by WDPortalUtils.getServiceReference(key) ):
java.lang.NoClassDefFoundError: com/company/service/equi/IEquiService
at com.company.service.ServiceCust.wdDoInit(ServiceCust.java:123)
at com.company.service.wdp.InternalServiceCust.wdDoInit(InternalServiceCust.java:112)
at com.sap.tc.webdynpro.progmodel.generation.DelegatingCustomController.doInit(DelegatingCustomController.java:73)
at com.sap.tc.webdynpro.progmodel.controller.Controller.initController(Controller.java:215)
at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:200)
at com.sap.tc.webdynpro.progmodel.controller.Component.getCustomControllerInternal(Component.java:436)
at com.sap.tc.webdynpro.progmodel.controller.Component.getMappableContext(Component.java:374)
at com.sap.tc.webdynpro.progmodel.controller.Component.getMappableContext(Component.java:403)
at com.sap.tc.webdynpro.progmodel.context.MappedAttributeInfo.initAttributeMapping(MappedAttributeInfo.java:319)
at com.sap.tc.webdynpro.progmodel.context.MappedAttributeInfo.init(MappedAttributeInfo.java:278)
at com.sap.tc.webdynpro.progmodel.context.NodeInfo.initAttributes(NodeInfo.java:674)
at com.sap.tc.webdynpro.progmodel.context.DataNodeInfo.doInit(DataNodeInfo.java:238)
at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:659)
at com.sap.tc.webdynpro.progmodel.context.Context.init(Context.java:40)
at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:199)
at com.sap.tc.webdynpro.progmodel.view.ViewManager.getView(ViewManager.java:539)
at com.sap.tc.webdynpro.progmodel.view.ViewManager.bindRoot(ViewManager.java:421)
at com.sap.tc.webdynpro.progmodel.view.ViewManager.init(ViewManager.java:130)
at com.sap.tc.webdynpro.progmodel.view.InterfaceView.initController(InterfaceView.java:41)
at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:200)
at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.displayToplevelComponent(ClientComponent.java:135)
at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.init(ClientApplication.java:404)
at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:618)
at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:59)
at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:251)
at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doWebDynproProcessing(DispatcherServlet.java:154)
at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:116)
at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doGet(DispatcherServlet.java:48)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:401)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:266)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:387)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:365)
at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:944)
at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:266)
at com.sap.engine.services.httpserver.server.Client.handle(Client.java:95)
at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:160)
at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
at java.security.AccessController.doPrivileged(Native Method)
at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100)
at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)
Hope that anybody knows what could be wrong here.
Thanks a lot.
Rene
The prtapi.jar is set in the classpath:
<classpathentry kind="lib" path="C:/Programme/SAP/JDT/eclipse/plugins/com.sap.tc.ap/comp/SAP_JTECHS/DCs/sap.com/epbc.prtapi._api/_comp/gen/default/public/default/lib/java/prtapi.jar"/>
and when I look in the portal (System Administration -> Support -> Portal Runtime -> Application Console), select my service and press the "show" Button, I see that the service has a dependency to my web dynpro application.
service: psequinr|EquiService
SAPJ2EE::company.com/wdequset
So I think that the sharing reference of the web Dynpro should be ok. Or not?
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Hi all,
I cannot access the portal service from my web dynpro dc.
1. I created a Portal Service (say xxxservice) in a DC (say the DC name is testservice and the vendor is xx.com)
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import com.sap.security.api.IUser;
import com.sap.tc.webdynpro.clientserver.portal.WDPortalUtils;
import com.sap.tc.webdynpro.clientserver.portal.sf.WDPortalServiceType;
import com.sap.tc.webdynpro.progmodel.api.IWDMessageManager;
import com.sap.tc.webdynpro.services.sal.um.api.IWDClientUser;
import com.sap.tc.webdynpro.services.sal.um.api.WDClientUser;
import com.sapportals.portal.prt.service.notification.INotificationService;
import com.sapportals.portal.prt.service.notification.NotificationStringBufferPool;
import com.sapportals.portal.prt.service.notification.StreamData;
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} catch (Exception ex) {
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//@@end
* The following code section can be used for any Java code that is
* not to be visible to other controllers/views or that contains constructs
* currently not supported directly by Web Dynpro (such as inner classes or
* member variables etc.). </p>
* Note: The content of this section is in no way managed/controlled
* by the Web Dynpro Designtime or the Web Dynpro Runtime.
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//@@end
Thank.
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/thread/833576
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Message was edited by:
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find below the code for the interface
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<application>
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</application-config>
<components>
<component name="LandingPageComponent">
<component-config>
<property name="ClassName" value="com.satyam.landing.LandingPage"/>
</component-config>
<component-profile/>
</component>
</components>
<services/>
</application>
I am getting the following error.
Portal Runtime Error
An exception occurred while processing a request for :
iView : N/A
Component Name : N/A
Could not find portal application GlobalContext.
Exception id: 11:53_08/04/05_0095_1641450
See the details for the exception ID in the log file
Thanks in advance
Regards
NagaKishore -
Accessing UWL API from Web Dynpro Java
Hi experts,
I need to retrieve the data from UWL into Web Dynpro java, I have gone through many blogs and solutions but since I am new to portal I am unable to a get hang of it. Can anyone provide me step by step solution including codes for my problem?
Thanks & Regards,
Amit Sinha.
P.S. Points will rewarded.Hi Amit,
just gothrough this below link... here they given the coding also.....
Accessing UWL-API out of Web Dynpro Java
it may be helpful to you.... pls comeback if you are struck any where......
Regards,
Srinivas. -
Navigate from Web Dynpro app to portal page
Dear All,
I've created a number of Web Dynpro applications which I run from various portal pages. From one of the Web Dynpro's I navigate to a different portal page using the WDPortalNavigation.navigateAbsolute method. This works fine, but I'm left with one problem:
I'd like to pass parameters from the Web Dynpro which navigates to the portal page to the Web Dynpro applications which run on that specific page. I've appended the parameters to the URL I'm navigating to (eg ROLES://<pcd location>?<param=xxx>) and in the Web Dynpro's I've added a parameter to the Default interface plug. This doesn't seem to work. As an alternative I've added the statement WDWebContextAdapter.getWebContextAdapter().getRequestParameter("param") to the doInit() method of the view, but this also doesn't work.
Either I'm doing something wrong, or what I want to accomplish is not possible. Does anybody know of a way to access parameters passed to a portal page from Web Dynpro applications contained on that page?
Thanks,
ArnoudI hope you are passing parameters between two WebDynpro applications.
Please go through the example available for passing interaction between two webdynpro components.
Please check the following link
Alternative method for navigating to another page ?
or the following link
Re: Can we pass parameters in querystring of the webdynpro application? -
Sending paramters from Web dynpro to web services
Hi,
I need to send extra objects or paramters to my web service from web dynpro which are not part of user inputs. How can i achieve it? Iam new to web dynpro. pls help me with sample code.
Thanks a lot in advancehello Sujesh,
in webdynpro we import a webservice model. it contains all the necessary input parameters and u can pass value through it. i think u cannot pass extra objects or parameter other than these input parameters.
can u make ur requirement much more clear.
regards,
Piyush. -
How to accessing portal services
Hi All
I am saravanan. i have doubts. Can u plz solve my doubts?.
1). How to Accessing Portal Services from a Webdynpro application?.
2). Portal Eventing with Webdynpro and other Applications?.
3). single signon from Webdynpro applications?.
These are my doubts. Could u plz solve my problem.
If u have any material or PPT or PDF files kindly send my mail.
This is my mail id : [email protected]
Thanking You
SaravananHi Swathi
I'm trying to do exactly the same, i have a webdynpro application and i'm trying to access KM libraries to get the full list of metadata properties. But i'm getting and error while trying to get the service on the following code:
Property propertyAux = null;
IResourceFactory resFactory = ResourceFactory.getInstance();
IRepositoryServiceFactory serFactory = resFactory.getServiceFactory();
IPropertyConfigurationService propConfigService = (IPropertyConfigurationService) serFactory.getService("PropertyConfigurationService");
IMetaNameListIterator i = propConfigService.getMetaModel().nameIterator();
while (i.hasNext()) {
IMetaName metaname = i.next();
if ( metaname.getDocumentPatterns()!= null){
propertyData.setId(metaname.getName());
propertyData.setName(metaname.getLabel(locale));
propertyData.setNamespace(metaname.getNamespace());
propertyData.setDescription(metaname.getDescription(locale));
propertyList.add(propertyData);
The error on the trace is this one:
System.err#sap.com/KmmsListEAR#System.err#Guest#2####30a27fa0cbfa11dbace30018de0545f1#SAPEngine_Application_Thread[impl:3]_29##0#0#Error##Plain###Configuration Framework error: unable to create an IConfigClientContext instance from an EP5 userInitialConfigException: The configuration service locator could not be initialized for any of the environments. The configuration framework is not available.#
System.err#sap.com/KmmsListEAR#System.err#Guest#2####30a27fa0cbfa11dbace30018de0545f1#SAPEngine_Application_Thread[impl:3]_29##0#0#Error##Plain###InitialConfigException: The configuration service locator could not be initialized for any of the environments. The configuration framework is not available.
Could you please give me a hand on this one?
Thanks in advance -
Need info on Accessing portal services within a Web Dynpro application
Hi,
I need information on Accessing portal services within a Web Dynpro application.I want to explore this topic.Can anyone give useful links?
Thanks in advance.
Rajani NHi
how to reference a portal service with web dyn pro ?
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/ep/how%20to/how%20to%20access%20a%20portal%20service%20within%20a%20web%20dynpro%20java%20application.pdf
http://help.sap.com/javadocs/NW04S/current/wd/com/sap/tc/webdynpro/clientserver/portal/WDPortalUtils.html
Best Regards
Jakub Krecicki -
Calling a Portal Service from within a Web Dynpro DC
Hello,
I am trying to call a Portal Service from within a Web Dynpro development component without sucess.
Can anyone give me some hints on the necessary steps in order to accomplish this task?
Thanks
DizHi Diz,
I tried doing the same thing by following the steps as mentioned by you. Just to re iterate,
1. Created a DC "Portal Application Standalone" project by the name myservice.
2. Created a portal service inside myservice by the ame AmitsService.
3. Exposed IAmitsService.class in the public part.
4 Build and deployed the DC on server and tested it through an abstract portal component and it worked FINE !!
Now..
5. Created anoter DC of type WebDynPro
6. Added SAP_JTECHS -> epbc.prtapi._api as a "Used DC" with dependency build time and runtime
7. Specified the sharing reference in the properties as PORTAL:sap.com/myservice
8. Tried to reference the service using the following code..
IAmitsService portalservice=(IAmitsService)WDPortalUtils.getServiceReference(IAmitsService.KEY);
9.Build and deployed the DC.
10. When I run the application I am getting the following error
Processing HTTP request to servlet [dispatcher] finished with error.
The error is: com.sap.engine.frame.core.load.SAPNoClassDefFoundError: com/sapportals/portal/prt/service/IService
Exception id: [000D6008418B005C0000002C00000D200004163CE6719E1D]
PLEASE ADVISE
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