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/*
* 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 org.apache.dubbo.qos.command.impl;
import org.apache.dubbo.common.URL;
import org.apache.dubbo.common.utils.StringUtils;
import org.apache.dubbo.qos.command.BaseCommand;
import org.apache.dubbo.qos.command.CommandContext;
import org.apache.dubbo.qos.command.annotation.Cmd;
import org.apache.dubbo.remoting.RemotingException;
import org.apache.dubbo.remoting.telnet.support.TelnetUtils;
import org.apache.dubbo.remoting.utils.PayloadDropper;
import org.apache.dubbo.rpc.Exporter;
import org.apache.dubbo.rpc.Invoker;
import org.apache.dubbo.rpc.RpcStatus;
import org.apache.dubbo.rpc.model.FrameworkModel;
import org.apache.dubbo.rpc.protocol.dubbo.DubboProtocol;
import io.netty.channel.Channel;
import io.netty.channel.ChannelFuture;
import java.lang.reflect.Method;
import java.net.InetSocketAddress;
import java.util.ArrayList;
import java.util.List;
import static org.apache.dubbo.common.constants.CommonConstants.DEFAULT_TIMEOUT;
import static org.apache.dubbo.qos.server.handler.QosProcessHandler.PROMPT;
@Cmd(name = "count", summary = "Count the service.", example = {
"count [service] [method] [times]"
})
public class CountTelnet implements BaseCommand {
private DubboProtocol dubboProtocol;
public CountTelnet(FrameworkModel frameworkModel) {
this.dubboProtocol = DubboProtocol.getDubboProtocol(frameworkModel);
}
@Override
public String execute(CommandContext commandContext, String[] args) {
Channel channel = commandContext.getRemote();
String service = channel.attr(ChangeTelnet.SERVICE_KEY).get();
if ((service == null || service.length() == 0)
&& (args == null || args.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 ").append(service).append(".\r\n");
}
String method;
String times;
if (service == null || service.length() == 0) {
service = args[0];
method = args.length > 1 ? args[1] : null;
} else {
method = args.length > 0 ? args[0] : null;
}
if (StringUtils.isNumber(method)) {
times = method;
method = null;
} else {
times = args.length > 2 ? args[2] : "1";
}
if (!StringUtils.isNumber(times)) {
return "Illegal times " + times + ", must be integer.";
}
final int t = Integer.parseInt(times);
Invoker invoker = null;
for (Exporter exporter : dubboProtocol.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;
Thread thread = new Thread(() -> {
for (int i = 0; i < t; i++) {
String result = count(inv, mtd);
try {
send(channel, "\r\n" + result);
} catch (RemotingException e1) {
return;
}
if (i < t - 1) {
try {
Thread.sleep(1000);
} catch (InterruptedException ignored) {
}
}
}
try {
send(channel, "\r\n" + PROMPT);
} catch (RemotingException ignored) {
}
}, "TelnetCount");
thread.setDaemon(true);
thread.start();
}
} else {
buf.append("No such service ").append(service);
}
return buf.toString();
}
public void send(Channel channel, Object message) throws RemotingException {
boolean success;
int timeout = 0;
try {
ChannelFuture future = channel.writeAndFlush(message);
success = future.await(DEFAULT_TIMEOUT);
Throwable cause = future.cause();
if (cause != null) {
throw cause;
}
} catch (Throwable e) {
throw new RemotingException((InetSocketAddress) channel.localAddress(), (InetSocketAddress) channel.remoteAddress(), "Failed to send message " + PayloadDropper.getRequestWithoutData(message) + " to " + channel.remoteAddress().toString() + ", cause: " + e.getMessage(), e);
}
if (!success) {
throw new RemotingException((InetSocketAddress) channel.localAddress(), (InetSocketAddress) channel.remoteAddress(), "Failed to send message " + PayloadDropper.getRequestWithoutData(message) + " to " + channel.remoteAddress().toString()
+ "in timeout(" + timeout + "ms) limit");
}
}
private String count(Invoker invoker, String method) {
URL url = invoker.getUrl();
List> table = new ArrayList>();
List header = new ArrayList();
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());
table.add(createRow(m.getName(), count));
}
} 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);
table.add(createRow(method, count));
} else {
return "No such method " + method + " in class " + invoker.getInterface().getName();
}
}
return TelnetUtils.toTable(header, table);
}
private List createRow(String methodName, RpcStatus count) {
List row = new ArrayList();
row.add(methodName);
row.add(String.valueOf(count.getTotal()));
row.add(String.valueOf(count.getFailed()));
row.add(String.valueOf(count.getActive()));
row.add(count.getSucceededAverageElapsed() + "ms");
row.add(count.getSucceededMaxElapsed() + "ms");
return row;
}
}