Java tutorial
/** * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved. * * This library is free software; you can redistribute it and/or modify it under * the terms of the GNU Lesser General Public License as published by the Free * Software Foundation; either version 2.1 of the License, or (at your option) * any later version. * * This library is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more * details. */ package com.liferay.portlet.imagegallerydisplay.action; import com.liferay.portal.kernel.servlet.SessionErrors; import com.liferay.portal.security.auth.PrincipalException; import com.liferay.portal.struts.PortletAction; import com.liferay.portlet.documentlibrary.NoSuchFolderException; import com.liferay.portlet.documentlibrary.action.ActionUtil; import javax.portlet.PortletConfig; import javax.portlet.RenderRequest; import javax.portlet.RenderResponse; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; /** * @author Brian Wing Shun Chan */ public class ViewSlideShowAction extends PortletAction { @Override public ActionForward render(ActionMapping mapping, ActionForm form, PortletConfig portletConfig, RenderRequest renderRequest, RenderResponse renderResponse) throws Exception { try { ActionUtil.getFolder(renderRequest); } catch (Exception e) { if (e instanceof NoSuchFolderException || e instanceof PrincipalException) { SessionErrors.add(renderRequest, e.getClass().getName()); return mapping.findForward("portlet.image_gallery_display.error"); } else { throw e; } } return mapping.findForward("portlet.image_gallery_display.view_slide_show"); } }