| /* |
| * 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.dubbo.rpc.protocol.dubbo.telnet; |
| |
| import com.alibaba.dubbo.common.extension.Activate; |
| import com.alibaba.dubbo.common.utils.PojoUtils; |
| import com.alibaba.dubbo.common.utils.ReflectUtils; |
| import com.alibaba.dubbo.common.utils.StringUtils; |
| import com.alibaba.dubbo.remoting.Channel; |
| import com.alibaba.dubbo.remoting.telnet.TelnetHandler; |
| import com.alibaba.dubbo.remoting.telnet.support.Help; |
| import com.alibaba.dubbo.rpc.Exporter; |
| import com.alibaba.dubbo.rpc.Invoker; |
| import com.alibaba.dubbo.rpc.RpcContext; |
| import com.alibaba.dubbo.rpc.RpcInvocation; |
| import com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol; |
| import com.alibaba.fastjson.JSON; |
| |
| import java.lang.reflect.Method; |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * InvokeTelnetHandler |
| */ |
| @Activate |
| @Help(parameter = "[service.]method(args)", summary = "Invoke the service method.", detail = "Invoke the service method.") |
| public class InvokeTelnetHandler implements TelnetHandler { |
| |
| private static Method findMethod(Exporter<?> exporter, String method, List<Object> args) { |
| Invoker<?> invoker = exporter.getInvoker(); |
| Method[] methods = invoker.getInterface().getMethods(); |
| for (Method m : methods) { |
| if (m.getName().equals(method) && isMatch(m.getParameterTypes(), args)) { |
| return m; |
| } |
| } |
| return null; |
| } |
| |
| private static boolean isMatch(Class<?>[] types, List<Object> args) { |
| if (types.length != args.size()) { |
| return false; |
| } |
| for (int i = 0; i < types.length; i++) { |
| Class<?> type = types[i]; |
| Object arg = args.get(i); |
| if (ReflectUtils.isPrimitive(arg.getClass())) { |
| if (!ReflectUtils.isPrimitive(type)) { |
| return false; |
| } |
| } else if (arg instanceof Map) { |
| String name = (String) ((Map<?, ?>) arg).get("class"); |
| Class<?> cls = arg.getClass(); |
| if (name != null && name.length() > 0) { |
| cls = ReflectUtils.forName(name); |
| } |
| if (!type.isAssignableFrom(cls)) { |
| return false; |
| } |
| } else if (arg instanceof Collection) { |
| if (!type.isArray() && !type.isAssignableFrom(arg.getClass())) { |
| return false; |
| } |
| } else { |
| if (!type.isAssignableFrom(arg.getClass())) { |
| return false; |
| } |
| } |
| } |
| return true; |
| } |
| |
| @Override |
| @SuppressWarnings("unchecked") |
| public String telnet(Channel channel, String message) { |
| if (message == null || message.length() == 0) { |
| return "Please input method name, eg: \r\ninvoke xxxMethod(1234, \"abcd\", {\"prop\" : \"value\"})\r\ninvoke XxxService.xxxMethod(1234, \"abcd\", {\"prop\" : \"value\"})\r\ninvoke com.xxx.XxxService.xxxMethod(1234, \"abcd\", {\"prop\" : \"value\"})"; |
| } |
| StringBuilder buf = new StringBuilder(); |
| String service = (String) channel.getAttribute(ChangeTelnetHandler.SERVICE_KEY); |
| if (service != null && service.length() > 0) { |
| buf.append("Use default service " + service + ".\r\n"); |
| } |
| int i = message.indexOf("("); |
| if (i < 0 || !message.endsWith(")")) { |
| return "Invalid parameters, format: service.method(args)"; |
| } |
| String method = message.substring(0, i).trim(); |
| String args = message.substring(i + 1, message.length() - 1).trim(); |
| i = method.lastIndexOf("."); |
| if (i >= 0) { |
| service = method.substring(0, i).trim(); |
| method = method.substring(i + 1).trim(); |
| } |
| List<Object> list; |
| try { |
| list = JSON.parseArray("[" + args + "]", Object.class); |
| } catch (Throwable t) { |
| return "Invalid json argument, cause: " + t.getMessage(); |
| } |
| Invoker<?> invoker = null; |
| Method invokeMethod = null; |
| for (Exporter<?> exporter : DubboProtocol.getDubboProtocol().getExporters()) { |
| if (service == null || service.length() == 0) { |
| invokeMethod = findMethod(exporter, method, list); |
| if (invokeMethod != null) { |
| invoker = exporter.getInvoker(); |
| break; |
| } |
| } else { |
| if (service.equals(exporter.getInvoker().getInterface().getSimpleName()) |
| || service.equals(exporter.getInvoker().getInterface().getName()) |
| || service.equals(exporter.getInvoker().getUrl().getPath())) { |
| invokeMethod = findMethod(exporter, method, list); |
| invoker = exporter.getInvoker(); |
| break; |
| } |
| } |
| } |
| if (invoker != null) { |
| if (invokeMethod != null) { |
| try { |
| Object[] array = PojoUtils.realize(list.toArray(), invokeMethod.getParameterTypes(), invokeMethod.getGenericParameterTypes()); |
| RpcContext.getContext().setLocalAddress(channel.getLocalAddress()).setRemoteAddress(channel.getRemoteAddress()); |
| long start = System.currentTimeMillis(); |
| Object result = invoker.invoke(new RpcInvocation(invokeMethod, array)).recreate(); |
| long end = System.currentTimeMillis(); |
| buf.append(JSON.toJSONString(result)); |
| buf.append("\r\nelapsed: "); |
| buf.append(end - start); |
| buf.append(" ms."); |
| } catch (Throwable t) { |
| return "Failed to invoke method " + invokeMethod.getName() + ", cause: " + StringUtils.toString(t); |
| } |
| } else { |
| buf.append("No such method " + method + " in service " + service); |
| } |
| } else { |
| buf.append("No such service " + service); |
| } |
| return buf.toString(); |
| } |
| |
| } |