| /* |
| * 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.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.protocol.dubbo.DubboProtocol; |
| |
| /** |
| * ChangeServiceTelnetHandler |
| */ |
| @Activate |
| @Help(parameter = "[service]", summary = "Change default service.", detail = "Change default service.") |
| public class ChangeTelnetHandler implements TelnetHandler { |
| |
| public static final String SERVICE_KEY = "telnet.service"; |
| |
| @Override |
| public String telnet(Channel channel, String message) { |
| if (message == null || message.length() == 0) { |
| return "Please input service name, eg: \r\ncd XxxService\r\ncd com.xxx.XxxService"; |
| } |
| StringBuilder buf = new StringBuilder(); |
| if (message.equals("/") || message.equals("..")) { |
| String service = (String) channel.getAttribute(SERVICE_KEY); |
| channel.removeAttribute(SERVICE_KEY); |
| buf.append("Cancelled default service " + service + "."); |
| } else { |
| boolean found = false; |
| for (Exporter<?> exporter : DubboProtocol.getDubboProtocol().getExporters()) { |
| if (message.equals(exporter.getInvoker().getInterface().getSimpleName()) |
| || message.equals(exporter.getInvoker().getInterface().getName()) |
| || message.equals(exporter.getInvoker().getUrl().getPath())) { |
| found = true; |
| break; |
| } |
| } |
| if (found) { |
| channel.setAttribute(SERVICE_KEY, message); |
| buf.append("Used the " + message + " as default.\r\nYou can cancel default service by command: cd /"); |
| } else { |
| buf.append("No such service " + message); |
| } |
| } |
| return buf.toString(); |
| } |
| |
| } |