struts-sandbox/tiles-documentation/src/java/org/apache/struts/webapp/tiles/skin/LayoutSwitchAction.java [188:224]:
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  public static DefinitionCatalog getCatalog( ComponentContext context, HttpServletRequest request, ServletContext servletContext )
    throws ServletException
  {
    // Retrieve name used to store catalog in application context.
    // If not found, use default name
  String catalogName = (String)context.getAttribute( CATALOG_NAME_ATTRIBUTE );
  if(catalogName == null)
    catalogName = DEFAULT_CATALOG_NAME;

  if(debug)
    System.out.println( "Catalog name=" + catalogName );
  try
    {
    DefinitionCatalog catalog = (DefinitionCatalog)servletContext.getAttribute( catalogName );
    if(catalog == null)
      { // create catalog
      if(debug)
        System.out.println( "Create catalog" );
      String catalogSettings = (String)context.getAttribute( CATALOG_SETTING_ATTRIBUTE );
      if(catalogSettings == null)
        throw new ServletException( "Error - CustomSkinAction : attribute '"
                                  + CATALOG_SETTING_ATTRIBUTE
                                  + "' not found in Tile's attributes. Need it to initialize catalog"  );
      catalog = new DefinitionCatalog( catalogSettings, request, servletContext );
      if(debug)
        System.out.println( "Catalog created" );
      servletContext.setAttribute( catalogName, catalog );
      } // end if
    return catalog;
    }
   catch(DefinitionsFactoryException ex )
    {
    if(debug)
        System.out.println( "Exception : " + ex.getMessage() );
    throw new ServletException( ex.getMessage() );
    }
  }
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struts-sandbox/tiles-documentation/src/java/org/apache/struts/webapp/tiles/skin/SimpleSwitchLayoutAction.java [149:185]:
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  public static DefinitionCatalog getCatalog( ComponentContext context, HttpServletRequest request, ServletContext servletContext )
    throws ServletException
  {
    // Retrieve name used to store catalog in application context.
    // If not found, use default name
  String catalogName = (String)context.getAttribute( CATALOG_NAME_ATTRIBUTE );
  if(catalogName == null)
    catalogName = DEFAULT_CATALOG_NAME;

  if(debug)
    System.out.println( "Catalog name=" + catalogName );
  try
    {
    DefinitionCatalog catalog = (DefinitionCatalog)servletContext.getAttribute( catalogName );
    if(catalog == null)
      { // create catalog
      if(debug)
        System.out.println( "Create catalog" );
      String catalogSettings = (String)context.getAttribute( CATALOG_SETTING_ATTRIBUTE );
      if(catalogSettings == null)
        throw new ServletException( "Error - CustomSkinAction : attribute '"
                                  + CATALOG_SETTING_ATTRIBUTE
                                  + "' not found in Tile's attributes. Need it to initialize catalog"  );
      catalog = new DefinitionCatalog( catalogSettings, request, servletContext );
      if(debug)
        System.out.println( "Catalog created" );
      servletContext.setAttribute( catalogName, catalog );
      } // end if
    return catalog;
    }
   catch(DefinitionsFactoryException ex )
    {
    if(debug)
        System.out.println( "Exception : " + ex.getMessage() );
    throw new ServletException( ex.getMessage() );
    }
  }
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