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.shopping.action; import com.liferay.portal.kernel.servlet.SessionErrors; import com.liferay.portal.kernel.util.CharPool; import com.liferay.portal.kernel.util.ParamUtil; import com.liferay.portal.kernel.util.StringUtil; import com.liferay.portal.security.auth.PrincipalException; import com.liferay.portal.struts.PortletAction; import com.liferay.portal.theme.ThemeDisplay; import com.liferay.portal.util.WebKeys; import com.liferay.portlet.shopping.AmazonException; import com.liferay.portlet.shopping.service.ShoppingItemServiceUtil; import javax.portlet.ActionRequest; import javax.portlet.ActionResponse; 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 AddBookItemsAction extends PortletAction { @Override public void processAction(ActionMapping mapping, ActionForm form, PortletConfig portletConfig, ActionRequest actionRequest, ActionResponse actionResponse) throws Exception { try { quickAddItems(actionRequest); sendRedirect(actionRequest, actionResponse); } catch (Exception e) { if (e instanceof PrincipalException) { SessionErrors.add(actionRequest, e.getClass().getName()); setForward(actionRequest, "portlet.shopping.error"); } else { throw e; } } } @Override public ActionForward render(ActionMapping mapping, ActionForm form, PortletConfig portletConfig, RenderRequest renderRequest, RenderResponse renderResponse) throws Exception { return mapping.findForward(getForward(renderRequest, "portlet.shopping.add_book_items")); } protected void quickAddItems(ActionRequest actionRequest) throws Exception { ThemeDisplay themeDisplay = (ThemeDisplay) actionRequest.getAttribute(WebKeys.THEME_DISPLAY); long groupId = themeDisplay.getScopeGroupId(); long categoryId = ParamUtil.getLong(actionRequest, "categoryId"); String[] isbns = StringUtil.split(ParamUtil.getString(actionRequest, "isbns").toUpperCase(), CharPool.SPACE); try { ShoppingItemServiceUtil.addBookItems(groupId, categoryId, isbns); } catch (AmazonException ae) { SessionErrors.add(actionRequest, ae.getClass().getName()); } } }