/* | |
* 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 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 | |
* | |
* @author william.liangf | |
*/ | |
@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"; | |
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(); | |
} | |
} |