[news.eclipse.modeling.gmf] Re: generate code from .gmfgen

[Aurelien Pupier <aurelien.pupier@xxxxxxxxx>]

Hi,

great to hear news about this subject.
Perhaps you can inspire from the opened bug : https://bugs.eclipse.org/bugs/show_bug.cgi?id=282331

(and vote for it)

Achilleas a écrit :
> Hi,
>
> Returning to this issue after a lot of months of other related work I am 
> trying to use the TransformToGenModelOperation and 
> TransformToGenModelWizard as advised by Alex.
>
> I am getting the following exception:
>
> org.eclipse.core.runtime.CoreException: Errors while loading Mapping model
>     at 
> org.eclipse.gmf.internal.bridge.transform.TransformToGenModelOperation.loadMappingModel(TransformToGenModelOperation.java:164) 
>
>     at 
> bt.com.ccm.generation.plugin.actions.GenerateDiagram.<init>(GenerateDiagram.java:85) 
>
>     at 
> bt.com.ccm.generation.plugin.actions.GenerateAction.run(GenerateAction.java:91) 
>
>     at 
> org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:251)
>     at 
> org.eclipse.ui.internal.WWinPluginAction.runWithEvent(WWinPluginAction.java:229) 
>
>     at 
> org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:583) 
>
>     at 
> org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:500) 
>
>     at 
> org.eclipse.jface.action.ActionContributionItem$6.handleEvent(ActionContributionItem.java:452) 
>
>     at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
>     at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
>     at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3823)
>     at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3422)
>     at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2382)
>     at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2346)
>     at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2198)
>     at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:493)
>     at 
> org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288) 
>
>     at 
> org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:488)
>     at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
>     at 
> org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113) 
>
>     at 
> org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193) 
>
>     at 
> org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110) 
>
>     at 
> org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79) 
>
>     at 
> org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:382) 
>
>     at 
> org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) 
>
>     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
>     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
>     at java.lang.reflect.Method.invoke(Unknown Source)
>     at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:549)
>     at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
>     at org.eclipse.equinox.launcher.Main.run(Main.java:1236)
>     at org.eclipse.equinox.launcher.Main.main(Main.java:1212)
> Caused by: java.lang.NullPointerException
>     at 
> org.eclipse.gmf.internal.bridge.transform.TransformToGenModelOperation.loadMappingModel(TransformToGenModelOperation.java:149) 
>
>     ... 32 more
>
> Which occurs at the following code - specifically at the statement 
> String msg = Messages.Tra.......
>
> if (!(root instanceof Mapping)) {
>                 String msg = 
> MessageFormat.format(Messages.TransformToGenModelOperation_e_wrong_root_element, 
> root.getClass().getName());
>                 status = Plugin.createError(msg, null);
>                 throw new CoreException(status);
>             }
>
> I don't seem to understand what is the problem and why the loading of 
> the gmfmap file fails. I have validated the gmfmap file I am using and 
> it is just fine. The code I have implemented is the following:
>
> @SuppressWarnings("restriction")
>     public GenerateDiagram(){
>        
>        
>         resourceSet = new ResourceSetImpl();
>        
>         Resource genmodel = new ResourceImpl();
>         genmodel = 
> resourceSet.createResource(URI.createPlatformResourceURI("/bt.com.ccm.generation.plugin/model/product.genmodel", 
> true));         System.out.println("print genmodel: "+genmodel.toString());
>        
>         Resource gmfgraph = new ResourceImpl();
>         gmfgraph = 
> resourceSet.createResource(URI.createPlatformResourceURI("/bt.com.ccm.generation.plugin/model/product.gmfgraph", 
> true));         System.out.println("print gmfgraph: "+gmfgraph.toString());
>        
>         Resource gmftool = new ResourceImpl();
>         gmftool = 
> resourceSet.createResource(URI.createPlatformResourceURI("/bt.com.ccm.generation.plugin/model/product.gmftool", 
> true));         System.out.println("print gmftool: "+gmftool.toString());
>        
>         Resource gmfmap = new ResourceImpl();
>         gmfmap = 
> resourceSet.createResource(URI.createPlatformResourceURI("/bt.com.ccm.generation.plugin/model/product.gmfmap", 
> true));         System.out.println("print gmfmap: "+gmfmap.toString());
>        
>         resourceSet.getResources().add(genmodel);
>         resourceSet.getResources().add(gmfgraph);
>         resourceSet.getResources().add(gmftool);
>         resourceSet.getResources().add(gmfmap);
>        
>         TransformToGenModelOperation tgmfgen = new 
> TransformToGenModelOperation(resourceSet);
>        
>        
>         try {
>             NullProgressMonitor np = new NullProgressMonitor();
>            
>             tgmfgen.loadMappingModel(gmfmap.getURI(),np);
>             tgmfgen.loadGenModel(genmodel.getURI(), np);
>            
>             GenModel genmmodel = tgmfgen.findGenmodel();
>            
>             IFile target = (IFile)new File("product.gmfgen");
>             
> tgmfgen.setGenURI(URI.createPlatformResourceURI(target.getFullPath().toString(), 
> true));
>
>            
>         } catch (CoreException e) {
>             // TODO Auto-generated catch block
>             e.printStackTrace();
>         }
>
>         //IProgressMonitor monitor =         //     
> (IProgressMonitor)getProject().getReferences().get(AntCorePlugin.ECLIPSE_PROGRESS_MONITOR); 
>
>        
>         NullProgressMonitor np = new NullProgressMonitor();
>         System.out.println("created IProgressMOnitor: ");
>         
> tgmfgen.setGenURI(URI.createPlatformResourceURI("/bt.com.ccm.generation.plugin/model/product.gmfgen", 
> true));
>         tgmfgen.executeTransformation(np);
>     }
>
> Any ideas?
>
> Thanks,
>
> Achilleas