[news.eclipse.modeling.mdt.uml2tools] Re: cannot open diagram programmat

[Aram Hovsepyan <Aram.Hovsepyan@xxxxxxxxxxxxxx>]

                Hey guys,

        I still can't find it. I have to give a demo at thursday and I'd like to
have it working :). The UML2 tree editor works fine while the diagram
editor always results in an error saying that he can't find the file, while
the file is there.

        thnx.

Aram Hovsepyan wrote:

>                 Hi,
> 
>         I have the following problem using UML2Tools plugin.
> 
>         I can open the uml2class_diagram files from my Eclipse, however
>         this does
> not work when I do this programmatically. I get the following
> error: "Cannot open input element. Reason: text editor does not have a
> document provider".
> 
>         All other files open fine.
> 
>         Here is the code that handles the opening:
> 
> IFileStore fileStore = EFS.getLocalFileSystem().getStore(new Path(path));
>
IDE.openEditorOnFileStore(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage(),
> fileStore);
> 
>         I've already tried to launch eclipse with the -clean option.
>         Doesn't help. Thanks in advance for the help.
> 
> 
> 
> Here is the complete stack trace of the exception:
>         
> java.lang.NullPointerException
>         at
>
org.eclipse.gmf.runtime.diagram.ui.resources.editor.parts.DiagramDocumentEditor$1.run(DiagramDocumentEditor.java:120)
>         at
>
org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:369)
>         at
>        
org.eclipse.jface.operation.ModalContext.run(ModalContext.java:313)
>         at
>
org.eclipse.jface.window.ApplicationWindow$1.run(ApplicationWindow.java:758)
>         at
>        
org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
>         at
> org.eclipse.jface.window.ApplicationWindow.run(ApplicationWindow.java:755)
>         at
>        
org.eclipse.ui.internal.WorkbenchWindow.run(WorkbenchWindow.java:2451)
>         at
>
org.eclipse.gmf.runtime.diagram.ui.resources.editor.parts.DiagramDocumentEditor.init(DiagramDocumentEditor.java:129)
>         at
>        
org.eclipse.ui.internal.EditorManager.createSite(EditorManager.java:794)
>         at
>
org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:643)
>         at
>
org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:426)
>         at
>
org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:592)
>         at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:299)
>         at
>
org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:179)
>         at
>
org.eclipse.ui.internal.presentations.util.PresentablePartFolder.select(PresentablePartFolder.java:268)
>         at
>
org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.select(LeftToRightTabOrder.java:65)
>         at
>
org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.selectPart(TabbedStackPresentation.java:400)
>         at
>
org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1256)
>         at
>        
org.eclipse.ui.internal.PartStack.setSelection(PartStack.java:1209)
>         at org.eclipse.ui.internal.PartStack.showPart(PartStack.java:1604)
>         at org.eclipse.ui.internal.PartStack.add(PartStack.java:499) at
>         org.eclipse.ui.internal.EditorStack.add(EditorStack.java:103) at
>         org.eclipse.ui.internal.PartStack.add(PartStack.java:485) at
>         org.eclipse.ui.internal.EditorStack.add(EditorStack.java:112) at
>
org.eclipse.ui.internal.EditorSashContainer.addEditor(EditorSashContainer.java:63)
>         at
>
org.eclipse.ui.internal.EditorAreaHelper.addToLayout(EditorAreaHelper.java:217)
>         at
>
org.eclipse.ui.internal.EditorAreaHelper.addEditor(EditorAreaHelper.java:207)
>         at
>
org.eclipse.ui.internal.EditorManager.createEditorTab(EditorManager.java:774)
>         at
>
org.eclipse.ui.internal.EditorManager.openEditorFromDescriptor(EditorManager.java:673)
>         at
>        
org.eclipse.ui.internal.EditorManager.openEditor(EditorManager.java:634)
>         at
>
org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2737)
>         at
>
org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2651)
>         at
>         org.eclipse.ui.internal.WorkbenchPage.access$1
(WorkbenchPage.java:2643)
>         at
>        
org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2595)
>         at
>        
org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
>         at
> org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2590)
>         at
> org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2574)
>         at
> org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2557)
>         at org.eclipse.ui.ide.IDE.openEditorOnFileStore(IDE.java:1090)
>         at
>
org.kuleuven.grecco.views.GreccoConcernLibraryView$3.run(GreccoConcernLibraryView.java:233)
>         at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
>         at
>
org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:546)
>         at org.eclipse.jface.action.ActionContributionItem.access$
> (ActionContributionItem.java:490)
>         at
>
org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:402)
>         at
>         org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
>         at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1101) at
>        
org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3319)
>         at
>         org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2971)
>         at
>        
org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2389)
>         at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2353) at
>         org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2219) at
>         org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466) at
>
org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:289)
>         at
>
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:461)
>         at
>        
org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
>         at
>
org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:106)
>         at
>
org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:169)
>         at
>
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106)
>         at
>
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76)
>         at
>
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:363)
>         at
>
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at
>
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>         at
>
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:585)
>         at
>         org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:508)
>         at org.eclipse.equinox.launcher.Main.basicRun(Main.java:447) at
>         org.eclipse.equinox.launcher.Main.run(Main.java:1173)

-- 
Aram Hovsepyan
Distrinet research group
Katholieke Universiteit Leuven