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.currencyconverter.action; import com.liferay.portal.kernel.servlet.SessionErrors; import com.liferay.portal.kernel.servlet.SessionMessages; import com.liferay.portal.kernel.util.Constants; import com.liferay.portal.kernel.util.ParamUtil; import com.liferay.portal.kernel.util.StringUtil; import com.liferay.portal.struts.PortletAction; import javax.portlet.ActionRequest; import javax.portlet.ActionResponse; import javax.portlet.PortletConfig; import javax.portlet.PortletPreferences; import javax.portlet.RenderRequest; import javax.portlet.RenderResponse; import javax.portlet.ValidatorException; 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 EditPreferencesAction 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); if (!cmd.equals(Constants.UPDATE)) { return; } PortletPreferences preferences = actionRequest.getPreferences(); String[] symbols = StringUtil.split(ParamUtil.getString(actionRequest, "symbols").toUpperCase()); preferences.setValues("symbols", symbols); try { preferences.store(); } catch (ValidatorException ve) { SessionErrors.add(actionRequest, ValidatorException.class.getName(), ve); return; } SessionMessages.add(actionRequest, portletConfig.getPortletName() + SessionMessages.KEY_SUFFIX_UPDATED_PREFERENCES); } @Override public ActionForward render(ActionMapping mapping, ActionForm form, PortletConfig portletConfig, RenderRequest renderRequest, RenderResponse renderResponse) throws Exception { return mapping.findForward("portlet.currency_converter.edit"); } }