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.bookmarks.action; import com.liferay.portal.kernel.portlet.DefaultConfigurationAction; import com.liferay.portal.kernel.servlet.SessionErrors; import com.liferay.portal.kernel.util.GetterUtil; import com.liferay.portlet.bookmarks.model.BookmarksFolderConstants; import com.liferay.portlet.bookmarks.service.BookmarksFolderLocalServiceUtil; import com.liferay.portlet.documentlibrary.NoSuchFolderException; import javax.portlet.ActionRequest; import javax.portlet.ActionResponse; import javax.portlet.PortletConfig; /** * @author Sergio Gonzlez */ public class ConfigurationActionImpl extends DefaultConfigurationAction { @Override public void processAction(PortletConfig portletConfig, ActionRequest actionRequest, ActionResponse actionResponse) throws Exception { validateRootFolder(actionRequest); super.processAction(portletConfig, actionRequest, actionResponse); } protected void validateRootFolder(ActionRequest actionRequest) throws Exception { long rootFolderId = GetterUtil.getLong(getParameter(actionRequest, "rootFolderId")); if (rootFolderId != BookmarksFolderConstants.DEFAULT_PARENT_FOLDER_ID) { try { BookmarksFolderLocalServiceUtil.getFolder(rootFolderId); } catch (NoSuchFolderException nsfe) { SessionErrors.add(actionRequest, "rootFolderIdInvalid"); } } } }