Java tutorial
/* * This software was designed and created by Jason Carroll. * Copyright (c) 2002, 2003, 2004 Jason Carroll. * The author can be reached at jcarroll@cowsultants.com * ITracker website: http://www.cowsultants.com * ITracker forums: http://www.cowsultants.com/phpBB/index.php * * This program is free software; you can redistribute it and/or modify * it only under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. */ package org.itracker.web.actions.admin.configuration; import org.apache.commons.beanutils.PropertyUtils; import org.apache.log4j.Logger; import org.apache.struts.action.*; import org.itracker.SystemConfigurationException; import org.itracker.model.Configuration; import org.itracker.model.Configuration.Type; import org.itracker.model.util.UserUtilities; import org.itracker.services.ConfigurationService; import org.itracker.web.actions.base.ItrackerBaseAction; import org.itracker.web.util.LoginUtilities; import org.itracker.web.util.ServletContextUtils; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; import java.util.ArrayList; import java.util.List; public class OrderConfigurationItemAction extends ItrackerBaseAction { private static final Logger log = Logger.getLogger(OrderConfigurationItemAction.class); public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { ActionMessages errors = new ActionMessages(); if (!LoginUtilities.hasPermission(UserUtilities.PERMISSION_USER_ADMIN, request, response)) { return mapping.findForward("unauthorized"); } try { ConfigurationService configurationService = ServletContextUtils.getItrackerServices() .getConfigurationService(); Integer configId = (Integer) PropertyUtils.getSimpleProperty(form, "id"); String action = (String) PropertyUtils.getSimpleProperty(form, "action"); if (configId == null || configId.intValue() <= 0) { throw new SystemConfigurationException("Invalid configuration id."); } Configuration configItem = configurationService.getConfigurationItem(configId); if (configItem == null) { throw new SystemConfigurationException("Invalid configuration id."); } Type configType = configItem.getType(); List<Configuration> configItems = configurationService.getConfigurationItemsByType(configType); List<Configuration> newConfigItems = new ArrayList<Configuration>(); for (int i = 0; i < configItems.size(); i++) { newConfigItems.add(configItems.get(i)); } for (int i = 0; i < configItems.size(); i++) { if (configItems.get(i) != null) { Configuration firstConfiguration = new Configuration(); Configuration secondConfiguration = new Configuration(); Configuration curConfiguration = configItems.get(i); int todo_i = -1; if (curConfiguration.getId().equals(configId)) { if ("up".equals(action)) { todo_i = i - 1; } else { todo_i = i + 1; } Configuration todoConfiguration = configItems.get(todo_i); firstConfiguration.setId(todoConfiguration.getId()); firstConfiguration.setCreateDate(todoConfiguration.getCreateDate()); firstConfiguration.setLastModifiedDate(todoConfiguration.getLastModifiedDate()); firstConfiguration.setName(todoConfiguration.getName()); firstConfiguration.setOrder(curConfiguration.getOrder()); firstConfiguration.setType(todoConfiguration.getType()); firstConfiguration.setValue(todoConfiguration.getValue()); firstConfiguration.setVersion(todoConfiguration.getVersion()); secondConfiguration.setId(curConfiguration.getId()); secondConfiguration.setCreateDate(curConfiguration.getCreateDate()); secondConfiguration.setLastModifiedDate(curConfiguration.getLastModifiedDate()); secondConfiguration.setName(curConfiguration.getName()); secondConfiguration.setOrder(todoConfiguration.getOrder()); secondConfiguration.setType(curConfiguration.getType()); secondConfiguration.setValue(curConfiguration.getValue()); secondConfiguration.setVersion(curConfiguration.getVersion()); newConfigItems.set(todo_i, firstConfiguration); newConfigItems.set(i, secondConfiguration); } } } newConfigItems = configurationService.updateConfigurationItems(newConfigItems, configType); // Only resolutions and severities can be reordered at this point. Statuses // and some basic workflow depend on the actual value of the status, so // the order must equal the value of the status for it to work correctly. switch (configType) { case resolution: case severity: configurationService.resetConfigurationCache(configType); } return mapping.findForward("listconfiguration"); } catch (SystemConfigurationException nfe) { errors.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage("itracker.web.error.invalidconfiguration")); log.debug("Invalid configuration item id " + request.getParameter("id") + " specified."); } catch (NumberFormatException nfe) { errors.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage("itracker.web.error.invalidconfiguration")); log.debug("Invalid configuration item id " + request.getParameter("id") + " specified."); } catch (Exception e) { errors.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage("itracker.web.error.system")); log.error("System Error.", e); } if (!errors.isEmpty()) { saveErrors(request, errors); } return mapping.findForward("error"); } }