package com.heyu.api.gateway.config;

import com.alibaba.cloud.nacos.discovery.NacosServiceDiscovery;
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.loadbalancer.core.CachingServiceInstanceListSupplier;
import org.springframework.cloud.loadbalancer.core.ReactorLoadBalancer;
import org.springframework.cloud.loadbalancer.core.ServiceInstanceListSupplier;
import org.springframework.cloud.loadbalancer.support.LoadBalancerClientFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;

@Configuration(proxyBeanMethods = false)
@AutoConfigureAfter({CachingServiceInstanceListSupplier.class, NacosServiceDiscovery.class})
public class CustomLoadBalancerConfiguration {


    @Bean
    ReactorLoadBalancer<ServiceInstance> randomLoadBalancer(Environment environment,
                                                            LoadBalancerClientFactory loadBalancerClientFactory) {
        String name = environment.getProperty(LoadBalancerClientFactory.PROPERTY_NAME);

        //这里返回了我自己定义的方法
        return new MyRandomLoadBalancer(loadBalancerClientFactory.getLazyProvider(name, ServiceInstanceListSupplier.class), name);

    }


}
