/* | |
* 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.ArrayList; | |
import java.util.List; | |
import com.alibaba.dubbo.common.Extension; | |
import com.alibaba.dubbo.common.URL; | |
import com.alibaba.dubbo.common.utils.StringUtils; | |
import com.alibaba.dubbo.remoting.Channel; | |
import com.alibaba.dubbo.remoting.RemotingException; | |
import com.alibaba.dubbo.remoting.telnet.TelnetHandler; | |
import com.alibaba.dubbo.remoting.telnet.support.Help; | |
import com.alibaba.dubbo.remoting.telnet.support.TelnetUtils; | |
import com.alibaba.dubbo.rpc.Exporter; | |
import com.alibaba.dubbo.rpc.Invoker; | |
import com.alibaba.dubbo.rpc.RpcStatus; | |
import com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol; | |
/** | |
* CountTelnetHandler | |
* | |
* @author william.liangf | |
*/ | |
@Help(parameter = "[service] [method] [times]", summary = "Count the service.", detail = "Count the service.") | |
@Extension("count") | |
public class CountTelnetHandler implements TelnetHandler { | |
public String telnet(final Channel channel, String message) { | |
String service = (String) channel.getAttribute(ChangeTelnetHandler.SERVICE_KEY); | |
if ((service == null || service.length() == 0) | |
&& (message == null || message.length() == 0)) { | |
return "Please input service name, eg: \r\ncount XxxService\r\ncount XxxService xxxMethod\r\ncount XxxService xxxMethod 10\r\nor \"cd XxxService\" firstly."; | |
} | |
StringBuilder buf = new StringBuilder(); | |
if (service != null && service.length() > 0) { | |
buf.append("Use default service " + service + ".\r\n"); | |
} | |
String[] parts = message.split("\\s+"); | |
String method; | |
String times; | |
if (service == null || service.length() == 0) { | |
service = parts.length > 0 ? parts[0] : null; | |
method = parts.length > 1 ? parts[1] : null; | |
} else { | |
method = parts.length > 0 ? parts[0] : null; | |
} | |
if (StringUtils.isInteger(method)) { | |
times = method; | |
method = null; | |
} else { | |
times = parts.length > 2 ? parts[2] : "1"; | |
} | |
if (! StringUtils.isInteger(times)) { | |
return "Illegal times " + times + ", must be integer."; | |
} | |
final int t = Integer.parseInt(times); | |
Invoker<?> invoker = null; | |
for (Exporter<?> exporter : DubboProtocol.getDubboProtocol().getExporters()) { | |
if (service.equals(exporter.getInvoker().getInterface().getSimpleName()) | |
|| service.equals(exporter.getInvoker().getInterface().getName()) | |
|| service.equals(exporter.getInvoker().getUrl().getPath())) { | |
invoker = exporter.getInvoker(); | |
break; | |
} | |
} | |
if (invoker != null) { | |
if (t > 0) { | |
final String mtd = method; | |
final Invoker<?> inv = invoker; | |
final String prompt = channel.getUrl().getParameter("prompt", "telnet"); | |
Thread thread = new Thread(new Runnable() { | |
public void run() { | |
for (int i = 0; i < t; i ++) { | |
String result = count(inv, mtd); | |
try { | |
channel.send("\r\n" + result); | |
} catch (RemotingException e1) { | |
return; | |
} | |
if (i < t - 1) { | |
try { | |
Thread.sleep(1000); | |
} catch (InterruptedException e) { | |
} | |
} | |
} | |
try { | |
channel.send("\r\n" + prompt + "> "); | |
} catch (RemotingException e1) { | |
return; | |
} | |
} | |
}, "TelnetCount"); | |
thread.setDaemon(true); | |
thread.start(); | |
} | |
} else { | |
buf.append("No such service " + service); | |
} | |
return buf.toString(); | |
} | |
private String count(Invoker<?> invoker, String method) { | |
URL url = invoker.getUrl(); | |
List<List<String>> table = new ArrayList<List<String>>(); | |
List<String> header = new ArrayList<String>(); | |
header.add("method"); | |
header.add("total"); | |
header.add("failed"); | |
header.add("active"); | |
header.add("average"); | |
header.add("max"); | |
if (method == null || method.length() == 0) { | |
for (Method m : invoker.getInterface().getMethods()) { | |
RpcStatus count = RpcStatus.getStatus(url, m.getName()); | |
List<String> row = new ArrayList<String>(); | |
row.add(m.getName()); | |
row.add(String.valueOf(count.getTotal())); | |
row.add(String.valueOf(count.getFailed())); | |
row.add(String.valueOf(count.getActive())); | |
row.add(String.valueOf(count.getSucceededAverageElapsed()) + "ms"); | |
row.add(String.valueOf(count.getSucceededMaxElapsed()) + "ms"); | |
table.add(row); | |
} | |
} else { | |
boolean found = false; | |
for (Method m : invoker.getInterface().getMethods()) { | |
if (m.getName().equals(method)) { | |
found = true; | |
break; | |
} | |
} | |
if (found) { | |
RpcStatus count = RpcStatus.getStatus(url, method); | |
List<String> row = new ArrayList<String>(); | |
row.add(method); | |
row.add(String.valueOf(count.getTotal())); | |
row.add(String.valueOf(count.getFailed())); | |
row.add(String.valueOf(count.getActive())); | |
row.add(String.valueOf(count.getSucceededAverageElapsed()) + "ms"); | |
row.add(String.valueOf(count.getSucceededMaxElapsed()) + "ms"); | |
table.add(row); | |
} else { | |
return "No such method " + method + " in class " + invoker.getInterface().getName(); | |
} | |
} | |
return TelnetUtils.toTable(header, table); | |
} | |
} |