/* | |
* Copyright 1999-2011 Alibaba Group. | |
* | |
* Licensed 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 java.lang.reflect.Method; | |
import java.util.List; | |
import com.alibaba.dubbo.common.Extension; | |
import com.alibaba.dubbo.common.json.JSON; | |
import com.alibaba.dubbo.common.utils.PojoUtils; | |
import com.alibaba.dubbo.common.utils.ReflectUtils; | |
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; | |
/** | |
* InvokeTelnetHandler | |
* | |
* @author william.liangf | |
*/ | |
@Help(parameter = "[service.]method(args)", summary = "Invoke the service method.", detail = "Invoke the service method.") | |
@Extension("invoke") | |
public class InvokeTelnetHandler implements TelnetHandler { | |
@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(); | |
} | |
Invoker<?> invoker = null; | |
Method invokeMethod = null; | |
for (Exporter<?> exporter : DubboProtocol.getDubboProtocol().getExporters()) { | |
if (service == null || service.length() == 0) { | |
Method[] methods = exporter.getInvoker().getInterface().getMethods(); | |
for (Method m : methods) { | |
if (m.getName().equals(method) | |
|| ReflectUtils.getSignature(m.getName(), m.getParameterTypes()).equals(method)) { | |
invoker = exporter.getInvoker(); | |
invokeMethod = m; | |
break; | |
} | |
} | |
if (invoker != null) { | |
break; | |
} | |
} else { | |
if (service.equals(exporter.getInvoker().getInterface().getSimpleName()) | |
|| service.equals(exporter.getInvoker().getInterface().getName()) | |
|| service.equals(exporter.getInvoker().getUrl().getPath())) { | |
invoker = exporter.getInvoker(); | |
Method[] methods = invoker.getInterface().getMethods(); | |
for (Method m : methods) { | |
if (m.getName().equals(method) | |
|| ReflectUtils.getSignature(m.getName(), m.getParameterTypes()).equals(method)) { | |
invokeMethod = m; | |
} | |
} | |
break; | |
} | |
} | |
} | |
if (invoker != null) { | |
if (invokeMethod != null) { | |
List<Object> list; | |
try { | |
list = (List<Object>) JSON.parse("[" + args + "]", List.class); | |
} catch (Throwable t) { | |
return "Invalid json argument, cause: " + t.getMessage(); | |
} | |
try { | |
Object[] array = PojoUtils.realize(list.toArray(), invokeMethod.getParameterTypes()); | |
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.json(result)); | |
buf.append("\r\nelapsed: "); | |
buf.append(end - start); | |
buf.append(" ms."); | |
} catch (Throwable t) { | |
return "Failed to invoke method " + invokeMethod.getName() + ", cause: " + t.getMessage(); | |
} | |
} else { | |
buf.append("No such method " + method + " in service " + service); | |
} | |
} else { | |
buf.append("No such service " + service); | |
} | |
return buf.toString(); | |
} | |
} |