/*
* Copyright 2013-2017 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.cloud.netflix.ribbon.eureka;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.boot.autoconfigure.condition.AllNestedConditions;
import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cloud.netflix.ribbon.RibbonAutoConfiguration;
import org.springframework.cloud.netflix.ribbon.RibbonClients;
import org.springframework.cloud.netflix.ribbon.SpringClientFactory;
import org.springframework.context.annotation.Conditional;
import org.springframework.context.annotation.Configuration;
import com.netflix.discovery.EurekaClient;
import com.netflix.niws.loadbalancer.DiscoveryEnabledNIWSServerList;
/**
* Spring configuration for configuring Ribbon defaults to be Eureka based
* if Eureka client is enabled
*
* @author Dave Syer
* @author Biju Kunjummen
*/
@Configuration
@EnableConfigurationProperties
@RibbonEurekaAutoConfiguration.ConditionalOnRibbonAndEurekaEnabled
@AutoConfigureAfter(RibbonAutoConfiguration.class)
@RibbonClients(defaultConfiguration = EurekaRibbonClientConfiguration.class)
public class RibbonEurekaAutoConfiguration {
@Target({ ElementType.TYPE, ElementType.METHOD })
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Conditional(OnRibbonAndEurekaEnabledCondition.class)
@interface ConditionalOnRibbonAndEurekaEnabled {
}
private static class OnRibbonAndEurekaEnabledCondition extends AllNestedConditions {
public OnRibbonAndEurekaEnabledCondition() {
super(ConfigurationPhase.REGISTER_BEAN);
}
@ConditionalOnClass(DiscoveryEnabledNIWSServerList.class)
@ConditionalOnBean(SpringClientFactory.class)
@ConditionalOnProperty(value = "ribbon.eureka.enabled", matchIfMissing = true)
static class Defaults {}
@ConditionalOnBean(EurekaClient.class)
static class EurekaBeans {}
@ConditionalOnProperty(value = "eureka.client.enabled", matchIfMissing = true)
static class OnEurekaClientEnabled {}
}
}