Java tutorial
/** * The contents of this file are subject to the Mozilla Public License * Version 1.1 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the * License for the specific language governing rights and limitations under * the License. * * The Original Code is OpenELIS code. * * Copyright (C) The Minnesota Department of Health. All Rights Reserved. * * Contributor(s): CIRG, University of Washington, Seattle WA. */ package us.mn.state.health.lims.systemusermodule.action; import java.util.ArrayList; import java.util.List; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.beanutils.PropertyUtils; import org.apache.struts.Globals; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import org.apache.struts.action.ActionMessages; import us.mn.state.health.lims.common.action.BaseAction; import us.mn.state.health.lims.common.action.BaseActionForm; import us.mn.state.health.lims.common.action.IActionConstants; import us.mn.state.health.lims.common.exception.LIMSDuplicateRecordException; import us.mn.state.health.lims.common.exception.LIMSRuntimeException; import us.mn.state.health.lims.common.log.LogEvent; import us.mn.state.health.lims.common.util.StringUtil; import us.mn.state.health.lims.common.util.SystemConfiguration; import us.mn.state.health.lims.common.util.resources.ResourceLocator; import us.mn.state.health.lims.common.util.validator.ActionError; import us.mn.state.health.lims.hibernate.HibernateUtil; import us.mn.state.health.lims.role.dao.RoleDAO; import us.mn.state.health.lims.role.daoimpl.RoleDAOImpl; import us.mn.state.health.lims.role.valueholder.Role; import us.mn.state.health.lims.systemmodule.dao.SystemModuleDAO; import us.mn.state.health.lims.systemmodule.daoimpl.SystemModuleDAOImpl; import us.mn.state.health.lims.systemmodule.valueholder.SystemModule; import us.mn.state.health.lims.systemuser.dao.SystemUserDAO; import us.mn.state.health.lims.systemuser.daoimpl.SystemUserDAOImpl; import us.mn.state.health.lims.systemuser.valueholder.SystemUser; import us.mn.state.health.lims.systemusermodule.dao.PermissionAgentModuleDAO; import us.mn.state.health.lims.systemusermodule.daoimpl.RoleModuleDAOImpl; import us.mn.state.health.lims.systemusermodule.daoimpl.SystemUserModuleDAOImpl; import us.mn.state.health.lims.systemusermodule.valueholder.PermissionAgent; import us.mn.state.health.lims.systemusermodule.valueholder.PermissionModule; import us.mn.state.health.lims.systemusermodule.valueholder.RoleModule; import us.mn.state.health.lims.systemusermodule.valueholder.SystemUserModule; /** * @author Hung Nguyen (Hung.Nguyen@health.state.mn.us) */ public class SystemUserModuleUpdateAction extends BaseAction { private boolean isNew = false; private boolean permissionAgentIsUser = true; protected ActionForward performAction(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { String forward = FWD_SUCCESS; request.setAttribute(IActionConstants.ALLOW_EDITS_KEY, "true"); request.setAttribute(PREVIOUS_DISABLED, "false"); request.setAttribute(NEXT_DISABLED, "false"); String id = request.getParameter("ID"); String sysUserId = getSysUserId(request); isNew = StringUtil.isNullorNill(id) || "0".equals(id); permissionAgentIsUser = SystemConfiguration.getInstance().getPermissionAgent().equals("USER"); BaseActionForm dynaForm = (BaseActionForm) form; // server-side validation (validation.xml) ActionMessages errors = dynaForm.validate(mapping, request); if (errors != null && errors.size() > 0) { saveErrors(request, errors); // since we forward to jsp - not Action we don't need to repopulate // the lists here return mapping.findForward(FWD_FAIL); } String start = (String) request.getParameter("startingRecNo"); String direction = (String) request.getParameter("direction"); PermissionModule permissionAgentModule = permissionAgentIsUser ? new SystemUserModule() : new RoleModule(); permissionAgentModule.setSysUserId(sysUserId); // populate valueholder from form PropertyUtils.copyProperties(permissionAgentModule, dynaForm); String systemUserId = (String) dynaForm.get("systemUserId"); PermissionAgent permissionAgent = getPermissionAgent(dynaForm, systemUserId); String systemModuleId = (String) dynaForm.get("systemModuleId"); SystemModule systemModule = getSystemModule(dynaForm, systemModuleId); permissionAgentModule.setPermissionAgent(permissionAgent); permissionAgentModule.setSystemModule(systemModule); org.hibernate.Transaction tx = HibernateUtil.getSession().beginTransaction(); try { PermissionAgentModuleDAO permissionAgentModuleDAO = permissionAgentIsUser ? new SystemUserModuleDAOImpl() : new RoleModuleDAOImpl(); if (!isNew) { // UPDATE permissionAgentModuleDAO.updateData(permissionAgentModule); } else { // INSERT permissionAgentModuleDAO.insertData(permissionAgentModule); } tx.commit(); } catch (LIMSRuntimeException lre) { //bugzilla 2154 LogEvent.logError("SystemUserModuleUpdateAction", "performAction()", lre.toString()); tx.rollback(); errors = new ActionMessages(); java.util.Locale locale = (java.util.Locale) request.getSession() .getAttribute("org.apache.struts.action.LOCALE"); ActionError error = null; if (lre.getException() instanceof org.hibernate.StaleObjectStateException) { error = new ActionError("errors.OptimisticLockException", null, null); } else { if (lre.getException() instanceof LIMSDuplicateRecordException) { String messageKey = "systemmodule.name"; String msg = ResourceLocator.getInstance().getMessageResources().getMessage(locale, messageKey); error = new ActionError("errors.DuplicateRecord", msg, null); } else { error = new ActionError("errors.UpdateException", null, null); } } errors.add(ActionMessages.GLOBAL_MESSAGE, error); saveErrors(request, errors); request.setAttribute(Globals.ERROR_KEY, errors); request.setAttribute(PREVIOUS_DISABLED, "true"); request.setAttribute(NEXT_DISABLED, "true"); forward = FWD_FAIL; } finally { HibernateUtil.closeSession(); } if (forward.equals(FWD_FAIL)) return mapping.findForward(forward); // initialize the form dynaForm.initialize(mapping); // repopulate the form from valueholder PropertyUtils.copyProperties(dynaForm, permissionAgentModule); if ("true".equalsIgnoreCase(request.getParameter("close"))) { forward = FWD_CLOSE; } if (permissionAgentModule.getId() != null && !permissionAgentModule.getId().equals("0")) { request.setAttribute("ID", permissionAgentModule.getId()); } if (isNew) forward = FWD_SUCCESS_INSERT; return getForward(mapping.findForward(forward), id, start, direction); } private SystemModule getSystemModule(BaseActionForm dynaForm, String systemModuleId) { List systemModules = new ArrayList(); if (dynaForm.get("systemmodules") != null) { systemModules = (List) dynaForm.get("systemmodules"); } else { SystemModuleDAO systemModuleDAO = new SystemModuleDAOImpl(); systemModules = systemModuleDAO.getAllSystemModules(); } SystemModule systemModule = null; for (int i = 0; i < systemModules.size(); i++) { SystemModule sysModule = (SystemModule) systemModules.get(i); if (sysModule.getId().equals(systemModuleId)) { systemModule = sysModule; break; } } return systemModule; } @SuppressWarnings("unchecked") private PermissionAgent getPermissionAgent(BaseActionForm dynaForm, String agentId) { //the intent of this code is not clear, either we are getting the list of potential matches from the //form or the DB. Not sure of why one over the other. PermissionAgent permissionAgent = null; List<PermissionAgent> permissionAgents = new ArrayList(); if (dynaForm.get("systemusers") != null) { permissionAgents = (List<PermissionAgent>) dynaForm.get("systemusers"); for (PermissionAgent agent : permissionAgents) { if (agent.getId().equals(agentId)) { permissionAgent = agent; break; } } } else { if (permissionAgentIsUser) { SystemUserDAO systemUserDAO = new SystemUserDAOImpl(); SystemUser user = new SystemUser(); user.setId(agentId); systemUserDAO.getData(user); permissionAgent = user; } else { RoleDAO roleDAO = new RoleDAOImpl(); Role role = new Role(); role.setId(agentId); roleDAO.getData(role); permissionAgent = role; } } return permissionAgent; } protected String getPageTitleKey() { if (isNew) { return "systemusermodule.add.title"; } else { return "systemusermodule.edit.title"; } } protected String getPageSubtitleKey() { if (isNew) { return "systemusermodule.add.title"; } else { return "systemusermodule.edit.title"; } } }