feature: support reactive discovery client health indicator.

spring-cloud-starter-tencent-polaris-discovery/src/main/java/com/tencent/cloud/polaris/discovery/reactive/PolarisReactiveDiscoveryClientConfiguration.java

@@ -22,20 +22,26 @@ import com.tencent.cloud.polaris.discovery.PolarisServiceDiscovery;
 
 import org.springframework.boot.autoconfigure.AutoConfigureAfter;
 import org.springframework.boot.autoconfigure.AutoConfigureBefore;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.cloud.client.ConditionalOnDiscoveryHealthIndicatorEnabled;
 import org.springframework.cloud.client.ConditionalOnReactiveDiscoveryEnabled;
 import org.springframework.cloud.client.ReactiveCommonsClientAutoConfiguration;
 import org.springframework.cloud.client.discovery.composite.reactive.ReactiveCompositeDiscoveryClientAutoConfiguration;
+import org.springframework.cloud.client.discovery.health.DiscoveryClientHealthIndicatorProperties;
+import org.springframework.cloud.client.discovery.health.reactive.ReactiveDiscoveryClientHealthIndicator;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
 /**
  * Reactive Discovery Client Configuration for Polaris.
  *
- * @author Haotian Zhang, Andrew Shan, Jie Cheng
+ * @author Haotian Zhang, Andrew Shan, Jie Cheng, youta
  */
 @Configuration(proxyBeanMethods = false)
 @ConditionalOnReactiveDiscoveryEnabled
+@EnableConfigurationProperties(DiscoveryClientHealthIndicatorProperties.class)
 @AutoConfigureAfter({PolarisDiscoveryAutoConfiguration.class, ReactiveCompositeDiscoveryClientAutoConfiguration.class})
 @AutoConfigureBefore({ReactiveCommonsClientAutoConfiguration.class})
 public class PolarisReactiveDiscoveryClientConfiguration {
@@ -46,4 +52,12 @@ public class PolarisReactiveDiscoveryClientConfiguration {
 			PolarisServiceDiscovery polarisServiceDiscovery) {
 		return new PolarisReactiveDiscoveryClient(polarisServiceDiscovery);
 	}
+
+	@Bean
+	@ConditionalOnClass(name = "org.springframework.boot.actuate.health.ReactiveHealthIndicator")
+	@ConditionalOnDiscoveryHealthIndicatorEnabled
+	public ReactiveDiscoveryClientHealthIndicator polarisReactiveDiscoveryClientHealthIndicator(
+			PolarisReactiveDiscoveryClient client, DiscoveryClientHealthIndicatorProperties properties) {
+		return new ReactiveDiscoveryClientHealthIndicator(client, properties);
+	}
 }