io.camunda.zeebe.gateway.impl.probes.health.ClusterAwarenessHealthIndicatorAutoConfiguration Maven / Gradle / Ivy
/*
* Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH under
* one or more contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright ownership.
* Licensed under the Camunda License 1.0. You may not use this file
* except in compliance with the Camunda License 1.0.
*/
package io.camunda.zeebe.gateway.impl.probes.health;
import io.camunda.zeebe.gateway.impl.SpringGatewayBridge;
import org.springframework.boot.actuate.autoconfigure.health.ConditionalOnEnabledHealthIndicator;
import org.springframework.boot.actuate.autoconfigure.health.HealthContributorAutoConfiguration;
import org.springframework.boot.autoconfigure.AutoConfigureBefore;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
/**
* {@link EnableAutoConfiguration Auto-configuration} for {@link ClusterAwarenessHealthIndicator}.
*/
@Configuration(proxyBeanMethods = false)
@ConditionalOnEnabledHealthIndicator("gateway-clusterawareness")
@AutoConfigureBefore(HealthContributorAutoConfiguration.class)
public class ClusterAwarenessHealthIndicatorAutoConfiguration {
@Bean
@ConditionalOnMissingBean(name = "gatewayClusterAwarenessHealthIndicator")
public ClusterAwarenessHealthIndicator gatewayClusterAwarenessHealthIndicator(
SpringGatewayBridge gatewayBridge) {
/**
* Here we effectively chain two suppliers to decouple their creation in time.
*
* The first supplier created here and passed into the constructor of the health indicator is
* created first. This happens very early in the application's life cycle. At this point in
* time, the cluster status supplier inside gateway bridge is not yet registered.
*
*
Later, the actual cluster status supplier will be registered at gatewayBridge. The
* chaining allows us to delegate over two hops.
*/
return new ClusterAwarenessHealthIndicator(gatewayBridge::getClusterState);
}
}