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Polish alibaba/spring-cloud-alibaba/#902 : [Nacos Discovery] create NacosDiscoveryHealthIndicator
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.alibaba.cloud.nacos.discovery.actuate.health;
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import com.alibaba.cloud.nacos.NacosDiscoveryProperties;
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import com.alibaba.nacos.api.naming.NamingService;
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import org.springframework.boot.actuate.health.AbstractHealthIndicator;
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import org.springframework.boot.actuate.health.Health;
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import org.springframework.boot.actuate.health.HealthIndicator;
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/**
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* The {@link HealthIndicator} for Nacos Discovery
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*
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* @since 2.2.0
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*
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* @see HealthIndicator
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*/
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public class NacosDiscoveryHealthIndicator extends AbstractHealthIndicator {
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private final NacosDiscoveryProperties nacosDiscoveryProperties;
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public NacosDiscoveryHealthIndicator(
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NacosDiscoveryProperties nacosDiscoveryProperties) {
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this.nacosDiscoveryProperties = nacosDiscoveryProperties;
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}
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@Override
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protected void doHealthCheck(Health.Builder builder) throws Exception {
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NamingService namingService = nacosDiscoveryProperties.namingServiceInstance();
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// Just return "UP" or "DOWN"
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String status = namingService.getServerStatus();
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// Set the status to Builder
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builder.status(status);
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switch (status) {
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case "UP":
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builder.up();
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break;
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case "DOWN":
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builder.down();
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break;
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default:
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builder.unknown();
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break;
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}
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}
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}
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@ -18,9 +18,12 @@ package com.alibaba.cloud.nacos.endpoint;
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import com.alibaba.cloud.nacos.ConditionalOnNacosDiscoveryEnabled;
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import com.alibaba.cloud.nacos.NacosDiscoveryProperties;
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import com.alibaba.cloud.nacos.discovery.actuate.health.NacosDiscoveryHealthIndicator;
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import org.springframework.boot.actuate.autoconfigure.endpoint.condition.ConditionalOnEnabledEndpoint;
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import org.springframework.boot.actuate.autoconfigure.health.ConditionalOnEnabledHealthIndicator;
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import org.springframework.boot.actuate.endpoint.annotation.Endpoint;
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import org.springframework.boot.actuate.health.HealthIndicator;
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import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
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import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
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import org.springframework.context.annotation.Bean;
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@ -42,4 +45,10 @@ public class NacosDiscoveryEndpointAutoConfiguration {
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return new NacosDiscoveryEndpoint(nacosDiscoveryProperties);
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}
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@Bean
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@ConditionalOnEnabledHealthIndicator("nacos-discovery")
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public HealthIndicator nacosDiscoveryHealthIndicator(
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NacosDiscoveryProperties nacosDiscoveryProperties) {
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return new NacosDiscoveryHealthIndicator(nacosDiscoveryProperties);
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}
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}
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