Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (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.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.alibaba.dubboadmin.web.mvc; import java.lang.reflect.Method; import java.util.Map; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.alibaba.dubboadmin.SpringUtil; import com.alibaba.dubboadmin.governance.util.WebConstants; import com.alibaba.dubboadmin.web.mvc.governance.ServicesController; import org.apache.commons.lang.StringUtils; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; @Controller public class RouterController { @Autowired ServicesController servicesController; private boolean isPrimitive(Class<?> cls) { return cls.isPrimitive() || cls == Boolean.class || cls == Byte.class || cls == Character.class || cls == Short.class || cls == Integer.class || cls == Long.class || cls == Float.class || cls == Double.class || cls == String.class; } private Object convertPrimitive(Class<?> cls, String value) { if (cls == boolean.class || cls == Boolean.class) { return value == null || value.length() == 0 ? false : Boolean.valueOf(value); } else if (cls == byte.class || cls == Byte.class) { return value == null || value.length() == 0 ? 0 : Byte.valueOf(value); } else if (cls == char.class || cls == Character.class) { return value == null || value.length() == 0 ? '\0' : value.charAt(0); } else if (cls == short.class || cls == Short.class) { return value == null || value.length() == 0 ? 0 : Short.valueOf(value); } else if (cls == int.class || cls == Integer.class) { return value == null || value.length() == 0 ? 0 : Integer.valueOf(value); } else if (cls == long.class || cls == Long.class) { return value == null || value.length() == 0 ? 0 : Long.valueOf(value); } else if (cls == float.class || cls == Float.class) { return value == null || value.length() == 0 ? 0 : Float.valueOf(value); } else if (cls == double.class || cls == Double.class) { return value == null || value.length() == 0 ? 0 : Double.valueOf(value); } return value; } //address mapping @RequestMapping("/governance/addresses/{ip:[0-9.]+:?[0-9]+}/{type}") public String addressRouter(@PathVariable("ip") String ip, @PathVariable("type") String type, HttpServletRequest request, HttpServletResponse response, Model model) { model.addAttribute("address", ip); return appRouter(null, "addresses", ip, type, request, response, model); } @RequestMapping("/governance/addresses/{ip:[0-9.]+:?[0-9]+}/{type}/{action}") public String addresswithIDRouter(@RequestParam Map<String, String> params, @PathVariable("ip") String ip, @PathVariable("type") String type, @PathVariable("action") String action, HttpServletRequest request, HttpServletResponse response, Model model) { model.addAttribute("address", ip); return appAction(params, null, "addresses", ip, type, action, request, response, model); } @RequestMapping("/governance/addresses/{ip:[0-9.]+:?[0-9]+}/{type}/{id}/{action}") public String addressWithIDandAction(@PathVariable("ip") String ip, @PathVariable("type") String type, @PathVariable("id") String id, @PathVariable("action") String action, HttpServletRequest request, HttpServletResponse response, Model model) { model.addAttribute("address", ip); return appActionWithIdandAction(null, null, type, id, action, request, response, model); } // service mapping @RequestMapping("/governance/services/{service}/{type}") public String servicerRouter(@PathVariable("service") String service, @PathVariable("type") String type, HttpServletRequest request, HttpServletResponse response, Model model) { model.addAttribute("service", service); return appRouter(null, "services", service, type, request, response, model); } @RequestMapping("/governance/services/{service}/{type}/{action}") public String serviceAction(@RequestParam Map<String, String> param, @PathVariable("service") String service, @PathVariable("type") String type, @PathVariable("action") String action, HttpServletRequest request, HttpServletResponse response, Model model) { for (Map.Entry<String, String> entry : param.entrySet()) { System.out.println("key: " + entry.getKey()); System.out.println("value: " + entry.getValue()); } model.addAttribute("service", service); return appAction(param, null, "services", service, type, action, request, response, model); } @RequestMapping("/governance/services/{service}/{type}/{id}/{action}") public String serviceActionWithId(@RequestParam Map<String, Object> param, @PathVariable("service") String service, @PathVariable("type") String type, @PathVariable("id") String id, @PathVariable("action") String action, HttpServletRequest request, HttpServletResponse response, Model model) { String method = request.getMethod(); String app = null; System.out.println("type: " + type); System.out.println("action: " + action); System.out.println("method: " + method); for (Map.Entry<String, Object> entry : param.entrySet()) { if (entry.getKey().equals("application")) { app = (String) entry.getValue(); } System.out.println("key: " + entry.getKey()); System.out.println("value: " + entry.getValue()); } return appActionWithIdandAction(app, service, type, id, action, request, response, model); } // app mapping all execute goes here //@RequestMapping("/governance/applications/{app}/services/{ids}/{action}") //public String serviceActionWithApp(@PathVariable("app") String app, @PathVariable("ids") String ids, // @PathVariable("type") String type, HttpServletRequest request, // HttpServletResponse response, Model model) { // return ""; //} @RequestMapping("/governance/applications/{app}/{elements}/{element}/{type}") public String appRouter(@PathVariable("app") String app, @PathVariable("elements") String elements, @PathVariable("element") String element, @PathVariable("type") String type, HttpServletRequest request, HttpServletResponse response, Model model) { if (app != null) { model.addAttribute("app", app); } if (StringUtils.isNumeric(element)) { //service action, shield, recover.. Long[] ids = new Long[1]; ids[0] = Long.valueOf(element); model.addAttribute("service", request.getParameter("service")); try { Method m = servicesController.getClass().getDeclaredMethod(type, Long[].class, HttpServletRequest.class, HttpServletResponse.class, Model.class); Object result = m.invoke(servicesController, ids, request, response, model); return (String) result; } catch (Exception e) { e.printStackTrace(); } } if (elements.equals("services")) { model.addAttribute("service", element); } else if (elements.equals("addresses")) { model.addAttribute("address", element); } String name = WebConstants.mapper.get(type); if (name != null) { Object controller = SpringUtil.getBean(name); if (controller != null) { try { Method index = controller.getClass().getDeclaredMethod("index", HttpServletRequest.class, HttpServletResponse.class, Model.class); Object result = index.invoke(controller, request, response, model); return (String) result; } catch (Exception e) { e.printStackTrace(); } } } return ""; } @RequestMapping("/governance/applications/{app}/{type}") public String appWithService(@PathVariable("app") String app, @PathVariable("type") String type, HttpServletRequest request, HttpServletResponse response, Model model) { model.addAttribute("app", app); String name = WebConstants.mapper.get(type); if (name != null) { Object controller = SpringUtil.getBean(name); try { Method index = controller.getClass().getDeclaredMethod("index", HttpServletRequest.class, HttpServletResponse.class, Model.class); Object result = index.invoke(controller, request, response, model); return (String) result; } catch (Exception e) { e.printStackTrace(); } } return ""; } @RequestMapping("/governance/applications/{app}/{elements}/{element}/{type}/{action}") public String appAction(@RequestParam Map<String, String> params, @PathVariable("app") String app, @PathVariable("elements") String elements, @PathVariable("element") String element, @PathVariable("type") String type, @PathVariable("action") String action, HttpServletRequest request, HttpServletResponse response, Model model) { if (app != null) { model.addAttribute("app", app); } if (elements.equals("services")) { model.addAttribute("service", element); } else if (elements.equals("addresses")) { model.addAttribute("address", element); } String name = WebConstants.mapper.get(type); if (name != null) { Object controller = SpringUtil.getBean(name); if (controller != null) { if (request.getMethod().equals("POST")) { Method[] methods = controller.getClass().getDeclaredMethods(); for (Method method : methods) { if (method.getName().equals(action)) { Class<?> param = method.getParameterTypes()[0]; try { if (!param.isAssignableFrom(HttpServletRequest.class)) { Object value = param.newInstance(); Method[] mms = param.getDeclaredMethods(); for (Method m : mms) { if (m.getName().toLowerCase().startsWith("set")) { String methodName = m.getName(); String key = methodName.substring(3).toLowerCase(); String tmp = params.get(key); Object obj = tmp; if (tmp != null) { Class<?> t = m.getParameterTypes()[0]; if (isPrimitive(t)) { obj = convertPrimitive(t, tmp); } m.invoke(value, obj); } } } return (String) method.invoke(controller, value, request, response, model); } else { return (String) method.invoke(controller, request, response, model); } } catch (Exception e) { e.printStackTrace(); } } } } else { try { if (StringUtils.isNumeric(action)) { // action is id, call show method Method show = controller.getClass().getDeclaredMethod("show", Long.class, HttpServletRequest.class, HttpServletResponse.class, Model.class); Object result = show.invoke(controller, Long.valueOf(action), request, response, model); return (String) result; } else { Method m = controller.getClass().getDeclaredMethod(action, HttpServletRequest.class, HttpServletResponse.class, Model.class); Object result = m.invoke(controller, request, response, model); return (String) result; } } catch (Exception e) { e.printStackTrace(); } } } } return ""; } @RequestMapping("/governance/applications/{app}/services/{service}/{type}/{id}/{action}") public String appActionWithIdandAction(@PathVariable("app") String app, @PathVariable("service") String service, @PathVariable("type") String type, @PathVariable("id") String id, @PathVariable("action") String action, HttpServletRequest request, HttpServletResponse response, Model model) { if (app != null) { model.addAttribute("app", app); } model.addAttribute("service", service); String name = WebConstants.mapper.get(type); if (name != null) { Object controller = SpringUtil.getBean(name); if (controller != null) { try { Object result = null; if (StringUtils.isNumeric(id)) { //single id Method m = null; try { m = controller.getClass().getDeclaredMethod(action, Long.class, HttpServletRequest.class, HttpServletResponse.class, Model.class); result = m.invoke(controller, Long.valueOf(id), request, response, model); } catch (NoSuchMethodException e) { m = controller.getClass().getDeclaredMethod(action, Long[].class, HttpServletRequest.class, HttpServletResponse.class, Model.class); result = m.invoke(controller, new Long[] { Long.valueOf(id) }, request, response, model); } } else { //id array String[] array = id.split(","); Long[] ids = new Long[array.length]; for (int i = 0; i < array.length; i++) { ids[i] = Long.valueOf(array[i]); } Method m = controller.getClass().getDeclaredMethod(action, Long[].class, HttpServletRequest.class, HttpServletResponse.class, Model.class); result = m.invoke(controller, ids, request, response, model); } return (String) result; } catch (Exception e) { e.printStackTrace(); } } } return ""; } }