Navigate through Portal

Question

Hi,
I can navigate from web dynpro view to a portal iView but when I click on the history entry I created in the portal I get a PortalComponentException. I am on Portal 6.0 SP 16.
Here is the Exception I get:
com.sapportals.portal.prt.component.PortalComponentException: Error in service call of Portal Component
User : QasemA
     at com.sapportals.portal.prt.core.PortalRequestManager.handlePortalComponentException(PortalRequestManager.java:969)
     at com.sapportals.portal.prt.core.PortalRequestManager.callPortalComponent(PortalRequestManager.java:343)
     at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:136)
     at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:189)
     at com.sapportals.portal.prt.core.PortalRequestManager.runRequestCycle(PortalRequestManager.java:753)
     at com.sapportals.portal.prt.connection.ServletConnection.handleRequest(ServletConnection.java:240)
     at com.sapportals.portal.prt.dispatcher.Dispatcher$doService.run(Dispatcher.java:545)
     at java.security.AccessController.doPrivileged(Native Method)
     at com.sapportals.portal.prt.dispatcher.Dispatcher.service(Dispatcher.java:405)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at com.sap.engine.services.servlets_jsp.server.servlet.InvokerServlet.service(InvokerServlet.java:156)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:390)
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:264)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:347)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:325)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:887)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:241)
     at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92)
     at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148)
     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)
Caused by: com.sapportals.portal.prt.core.PortalRequestManagerException: PortalRuntimeException
     at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:143)
     at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:189)
     at com.sapportals.portal.prt.component.PortalComponentResponse.include(PortalComponentResponse.java:215)
     at com.sapportals.portal.prt.pom.PortalNode.service(PortalNode.java:646)
     at com.sapportals.portal.prt.core.PortalRequestManager.callPortalComponent(PortalRequestManager.java:328)
     ... 24 more
Caused by: java.lang.StringIndexOutOfBoundsException: String index out of range: -1
     at java.lang.String.substring(String.java:1444)
     at com.sapportals.portal.navigation.NavigationService.composeName(NavigationService.java:638)
     at com.sapportals.portal.navigation.NavigationEventsHelperService.getNavigationTargetFromRelative(NavigationEventsHelperService.java:1367)
     at com.sapportals.portal.navigation.NavigationEventsHelperService.getCurrentNavNode(NavigationEventsHelperService.java:350)
     at com.sapportals.portal.navigation.NavigationEventsHelperService.getCurrentLaunchNavNode(NavigationEventsHelperService.java:426)
     at com.sapportals.portal.navigation.fpm.NavigationFpmListener.addToHistory(NavigationFpmListener.java:254)
     at com.sapportals.portal.navigation.fpm.NavigationFpmListener.doNavigatePhase(NavigationFpmListener.java:96)
     at com.sapportals.portal.navigation.fpm.NavigationFpmListener.doPhase(NavigationFpmListener.java:67)
     at com.sapportals.portal.pb.fpm.FPMContainer.distributeEvent(FPMContainer.java:63)
     at com.sapportals.portal.pb.fpm.FPM.doDocumentHook(FPM.java:137)
     at com.sapportals.portal.prt.service.document.DocumentHookMulticaster.doDocumentHook(DocumentHookMulticaster.java:100)
     at com.sapportals.portal.prt.service.document.DocumentHookService.doDocumentHook(DocumentHookService.java:119)
     at com.sapportals.portal.prt.service.document.DocumentHookServiceNew.doDocumentHook(DocumentHookServiceNew.java:183)
     at com.sapportals.portal.prt.connection.PortalHook.doDocumentHook(PortalHook.java:824)
     at com.sapportals.portal.prt.core.PortalRequestManager.callPortalComponent(PortalRequestManager.java:261)
     at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:136)
     ... 28 more
And here is the code I am using to navigate:
String baseURL = "ROLES://portal_content/somepath.fld_somefolder";
int levelsup = 0;
String[] path = {"iv_someIview"};
String windowFeatures = null;
String windowName = "ProcessSeismicTasks";
String targetTitle = "ProcessSeismicTasks";
String contextURL =null;
String businessParameters = null;
boolean useSAPLauncher = true; 
WDPortalNavigation.navigateRelative(baseURL, levelsup, path, WDPortalNavigationMode.SHOW_INPLACE, windowFeatures, windowName, WDPortalNavigationHistoryMode.ALLOW_DUPLICATIONS, targetTitle, contextURL, businessParameters, useSAPLauncher);

Answer 1

Thanks for your reply, but this does not solve my problem. Or maybe i do something wrong.
I tried the Light Framework Page and it has exactly the same behavior as the Standard Framework Page (in this case). I use the following link inside my ASP.Net-Application inside the URL-IView: http://<host>:<port>/irj/portal?NavigationTarget=ROLES://portal_content/OwnContent/Role1/Workset1/Workset2/URLIView1. When i click the link the whole portal is opened inside the URL-IView (with the portal head, the main navigation, the worksets, ...). But i only want the URLIView to be changed.
The reason is, i have a detailed navigation on the left with four links to four IViews. These four IViews link to four pages of my ASP.NET-Application. I can change the ASP.NET-Application-Pages by clicking the four links in the detailed navigation. So far so good. On one of the ASP.NET-Pages (page2.aspx) i have a link to a different ASP.NET-Page (page3.aspx). I could manage the navigation by using a simple response.redirect("page3.aspx"). But when i do so the detailed navigation on the left is not updated. It still tells me that i am on page2 of my application.
One interesing aspect is when i click the detailed navigation inside the URL-IView then the content outside the URL-IView is changed. I analysed the source code of the web page and i found out that EPCM is used in this case. Do i have to use EPCM? Can i use EPCM with ASP.NET?