code: package org.omnetpp.ned.editor.wizards;
  
  import org.eclipse.core.resources.IContainer;
  import org.eclipse.ui.dialogs.WizardNewFileCreationPage;
  import org.omnetpp.common.util.StringUtils;
  import org.omnetpp.common.wizard.CreationContext;
  import org.omnetpp.common.wizard.IContentTemplate;
  import org.omnetpp.common.wizard.TemplateBasedNewFileWizard;
  import org.omnetpp.ned.core.NedResourcesPlugin;
  import org.omnetpp.ned.model.interfaces.INedTypeResolver;
  
  /**
   * "New NED file" wizard
   *
   * @author Andras
   */
  public abstract class AbstractNedFileWizard extends TemplateBasedNewFileWizard {
      @Override
      public void addPages() {
          super.addPages();
          setWindowTitle("New NED File");
  
          WizardNewFileCreationPage firstPage = getFirstPage();
          firstPage.setTitle(isImporting() ? "Import NED File" : "New NED File");
          firstPage.setDescription(isImporting() ? "Choose import target NED file" : "Choose NED file");
          firstPage.setFileExtension("ned");
          firstPage.setFileName("untitled.ned");
      }
  
      @Override
      protected CreationContext createContext(IContentTemplate selectedTemplate, IContainer folder) {
          CreationContext context = super.createContext(selectedTemplate, folder);
  
          String packageName = NedResourcesPlugin.getNedResources().getPackageFor(folder);
          context.getVariables().put("nedPackageName", StringUtils.defaultString(packageName,""));
  
          // namespace
          String namespaceName = NedResourcesPlugin.getNedResources().getSimplePropertyFor(folder, INedTypeResolver.NAMESPACE_PROPERTY);
          context.getVariables().put("namespaceName", StringUtils.defaultString(namespaceName,""));
  
          return context;
      }
  
  }
  