Source/BladeX-Tool/blade-starter-loadbalancer/src/main/java/org/springblade/core/loadbalancer/config/BladeLoadBalancerConfiguration.java

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/*
 *      Copyright (c) 2018-2028, Chill Zhuang All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are met:
 *
 *  Redistributions of source code must retain the above copyright notice,
 *  this list of conditions and the following disclaimer.
 *  Redistributions in binary form must reproduce the above copyright
 *  notice, this list of conditions and the following disclaimer in the
 *  documentation and/or other materials provided with the distribution.
 *  Neither the name of the dreamlu.net developer nor the names of its
 *  contributors may be used to endorse or promote products derived from
 *  this software without specific prior written permission.
 *  Author: Chill 搴勯獮 (smallchill@163.com)
 */
package org.springblade.core.loadbalancer.config;

import org.springblade.core.loadbalancer.props.BladeLoadBalancerProperties;
import org.springblade.core.loadbalancer.rule.GrayscaleLoadBalancer;
import org.springframework.boot.autoconfigure.AutoConfiguration;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.loadbalancer.annotation.LoadBalancerClientConfiguration;
import org.springframework.cloud.loadbalancer.annotation.LoadBalancerClientSpecification;
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.core.annotation.Order;
import org.springframework.core.env.Environment;

/**
 * blade 璐熻浇鍧囪　绛栫暐
 *
 * @author Chill
 */
@AutoConfiguration(before = LoadBalancerClientConfiguration.class)
@EnableConfigurationProperties(BladeLoadBalancerProperties.class)
@ConditionalOnProperty(value = BladeLoadBalancerProperties.PROPERTIES_PREFIX + ".enabled", matchIfMissing = true)
@Order(BladeLoadBalancerConfiguration.REACTIVE_SERVICE_INSTANCE_SUPPLIER_ORDER)
public class BladeLoadBalancerConfiguration {
   public static final int REACTIVE_SERVICE_INSTANCE_SUPPLIER_ORDER = 193827465;

   @Bean
   public ReactorLoadBalancer<ServiceInstance> reactorServiceInstanceLoadBalancer(Environment environment,
                                                               LoadBalancerClientFactory loadBalancerClientFactory,
                                                               BladeLoadBalancerProperties bladeLoadBalancerProperties) {
      String name = environment.getProperty(LoadBalancerClientFactory.PROPERTY_NAME);
      return new GrayscaleLoadBalancer(loadBalancerClientFactory.getLazyProvider(name, ServiceInstanceListSupplier.class), bladeLoadBalancerProperties);
   }

   @Bean
   public LoadBalancerClientSpecification loadBalancerClientSpecification() {
      return new LoadBalancerClientSpecification("default.bladeLoadBalancerConfiguration",
         new Class[]{BladeLoadBalancerConfiguration.class});
   }

}