dubbo SelectTelnet 源码
dubbo SelectTelnet 代码
文件路径：/dubbo-plugin/dubbo-qos/src/main/java/org/apache/dubbo/qos/command/impl/SelectTelnet.java
/*
* 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.utils.ArrayUtils;
import org.apache.dubbo.common.utils.CollectionUtils;
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.rpc.model.FrameworkModel;
import io.netty.channel.Channel;
import io.netty.util.AttributeKey;
import java.lang.reflect.Method;
import java.util.List;
@Cmd(name = "select", summary = "Select the index of the method you want to invoke", example = {
"select [index]"
})
public class SelectTelnet implements BaseCommand {
public static final AttributeKey<Boolean> SELECT_KEY = AttributeKey.valueOf("telnet.select");
public static final AttributeKey<Method> SELECT_METHOD_KEY = AttributeKey.valueOf("telnet.select.method");
private final InvokeTelnet invokeTelnet;
public SelectTelnet(FrameworkModel frameworkModel) {
this.invokeTelnet = new InvokeTelnet(frameworkModel);
}
@Override
public String execute(CommandContext commandContext, String[] args) {
if (ArrayUtils.isEmpty(args)) {
return "Please input the index of the method you want to invoke, eg: \r\n select 1";
}
Channel channel = commandContext.getRemote();
String message = args[0];
List<Method> methodList = channel.attr(InvokeTelnet.INVOKE_METHOD_LIST_KEY).get();
if (CollectionUtils.isEmpty(methodList)) {
return "Please use the invoke command first.";
}
if (!StringUtils.isNumber(message) || Integer.parseInt(message) < 1 || Integer.parseInt(message) > methodList.size()) {
return "Illegal index ,please input select 1~" + methodList.size();
}
Method method = methodList.get(Integer.parseInt(message) - 1);
channel.attr(SELECT_METHOD_KEY).set(method);
channel.attr(SELECT_KEY).set(Boolean.TRUE);
String invokeMessage = channel.attr(InvokeTelnet.INVOKE_MESSAGE_KEY).get();
return invokeTelnet.execute(commandContext, new String[]{invokeMessage});
}
}
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