private String _getBreadcrumbLayoutURL( Layout selLayout, String selLayoutParam, PortletURL portletURL, ThemeDisplay themeDisplay) throws Exception { if (portletURL == null) { return PortalUtil.getLayoutURL(selLayout, themeDisplay); } else { portletURL.setParameter(selLayoutParam, String.valueOf(selLayout.getPlid())); if (selLayout.isTypeControlPanel()) { if (themeDisplay.getDoAsGroupId() > 0) { portletURL.setParameter("doAsGroupId", String.valueOf(themeDisplay.getDoAsGroupId())); } if (themeDisplay.getRefererPlid() != LayoutConstants.DEFAULT_PLID) { portletURL.setParameter("refererPlid", String.valueOf(themeDisplay.getRefererPlid())); } } return portletURL.toString(); } }