Bug 116706 Bad Class Cast in IDEReportEditor.java
So I'm trying to open a report with BIRT/Eclipse API using the BIRT 2.0 nightly build code (as of 11/16/2005). the file IDEReportEditor.java method private IFile getFile( IEditorInput input ) { return ( (ReportFileEditorInput) input ).getFile( ); } However, input can be ReportEditorInput which is also an IEditorInput (to support reports found outside projects and workspaces) which doesn't even have a getFile() method on it. This causes a deeply nested exception that causes the report desinger to not be able to show a report that might be physically located outside a workspace.
UI/org.eclipse.birt.report.designer.ui.editors/src/org/eclipse/birt/report/designer/ui/editors/MultiPageReportEditor.java
if ( element instanceof IEditorInput )
		{
			Object adapter = getAdapter( IReportProvider.class );
			if ( adapter != null )
			{
				IReportProvider provider = (IReportProvider) adapter;
				return computeModificationStamp( provider.getInputPath( (IEditorInput) element ) );
			}
		}
		return 0;
	}
	protected long computeModificationStamp( IPath path )
	{
		return path.toFile( ).lastModified( );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.forms.editor.FormEditor#dispose()
	 */
	public void dispose( )
	{
		getSite( ).getWorkbenchWindow( )
				.getPartService( )
				.removePartListener( this );
		DataSetManager.removeInstance( this.getEditorInput( ) );
		super.dispose( );
	}
}