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.softwarecatalog.action; import com.liferay.portal.kernel.servlet.SessionErrors; import com.liferay.portal.kernel.util.Constants; import com.liferay.portal.kernel.util.ParamUtil; import com.liferay.portal.security.auth.PrincipalException; import com.liferay.portal.service.ServiceContext; import com.liferay.portal.service.ServiceContextFactory; import com.liferay.portal.struts.PortletAction; import com.liferay.portlet.softwarecatalog.FrameworkVersionNameException; import com.liferay.portlet.softwarecatalog.NoSuchFrameworkVersionException; import com.liferay.portlet.softwarecatalog.model.SCFrameworkVersion; import com.liferay.portlet.softwarecatalog.service.SCFrameworkVersionServiceUtil; 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 Jorge Ferrer */ public class EditFrameworkVersionAction extends PortletAction { @Override public void processAction(ActionMapping mapping, ActionForm form, PortletConfig portletConfig, ActionRequest actionRequest, ActionResponse actionResponse) throws Exception { String cmd = ParamUtil.getString(actionRequest, Constants.CMD); try { if (cmd.equals(Constants.ADD) || cmd.equals(Constants.UPDATE)) { updateFrameworkVersion(actionRequest); } else if (cmd.equals(Constants.DELETE)) { deleteFrameworkVersion(actionRequest); } sendRedirect(actionRequest, actionResponse); } catch (Exception e) { if (e instanceof NoSuchFrameworkVersionException || e instanceof PrincipalException) { SessionErrors.add(actionRequest, e.getClass().getName()); setForward(actionRequest, "portlet.software_catalog.error"); } else if (e instanceof FrameworkVersionNameException) { SessionErrors.add(actionRequest, e.getClass().getName()); } else { throw e; } } } @Override public ActionForward render(ActionMapping mapping, ActionForm form, PortletConfig portletConfig, RenderRequest renderRequest, RenderResponse renderResponse) throws Exception { try { ActionUtil.getFrameworkVersion(renderRequest); } catch (Exception e) { if (e instanceof NoSuchFrameworkVersionException || e instanceof PrincipalException) { SessionErrors.add(renderRequest, e.getClass().getName()); return mapping.findForward("portlet.software_catalog.error"); } else { throw e; } } return mapping.findForward(getForward(renderRequest, "portlet.software_catalog.edit_framework_version")); } protected void deleteFrameworkVersion(ActionRequest actionRequest) throws Exception { long frameworkVersionId = ParamUtil.getLong(actionRequest, "frameworkVersionId"); SCFrameworkVersionServiceUtil.deleteFrameworkVersion(frameworkVersionId); } protected void updateFrameworkVersion(ActionRequest actionRequest) throws Exception { long frameworkVersionId = ParamUtil.getLong(actionRequest, "frameworkVersionId"); String name = ParamUtil.getString(actionRequest, "name"); String url = ParamUtil.getString(actionRequest, "url"); boolean active = ParamUtil.getBoolean(actionRequest, "active"); int priority = ParamUtil.getInteger(actionRequest, "priority"); ServiceContext serviceContext = ServiceContextFactory.getInstance(SCFrameworkVersion.class.getName(), actionRequest); if (frameworkVersionId <= 0) { // Add framework version SCFrameworkVersionServiceUtil.addFrameworkVersion(name, url, active, priority, serviceContext); } else { // Update framework version SCFrameworkVersionServiceUtil.updateFrameworkVersion(frameworkVersionId, name, url, active, priority); } } }