com.codingapi.txlcn.client.dubbo.spi.sleuth.loadbalance.TXLCNLoadBalance Maven / Gradle / Ivy
/*
* Copyright 2017-2019 CodingApi .
*
* 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.codingapi.txlcn.client.dubbo.spi.sleuth.loadbalance;
import com.alibaba.dubbo.common.URL;
import com.alibaba.dubbo.rpc.Invocation;
import com.alibaba.dubbo.rpc.Invoker;
import com.alibaba.dubbo.rpc.RpcContext;
import com.codingapi.txlcn.spi.sleuth.listener.SleuthParamListener;
import lombok.extern.slf4j.Slf4j;
import java.util.List;
/**
* Description:
* Company: CodingApi
* Date: 2018/12/14
*
* @author ujued
*/
@Slf4j
public class TXLCNLoadBalance {
public static SleuthParamListener sleuthParamListener;
static Invoker chooseInvoker(List> invokers, URL url, Invocation invocation, TxLcnLoadBalance loadBalance) {
String localKey = RpcContext.getContext().getLocalAddressString();
List appList = sleuthParamListener.beforeBalance(localKey);
Invoker chooseInvoker = null;
for (Invoker tInvoker : invokers) {
String serverKey = tInvoker.getUrl().getAddress();
for (String appKey : appList) {
if (appKey.equals(serverKey)) {
chooseInvoker = tInvoker;
}
}
}
if (chooseInvoker == null) {
Invoker invoker = loadBalance.select(invokers, url, invocation);
sleuthParamListener.afterNewBalance(invoker.getUrl().getAddress());
return invoker;
} else {
return chooseInvoker;
}
}
@FunctionalInterface
public interface TxLcnLoadBalance {
Invoker select(List> invokers, URL url, Invocation invocation);
}
}