Only auto-register if conditions are correct.

s-c-commons creates an AutoServiceRegistrationProperties bean if enabled.

This commit only auto registers with eureka if that bean is available.

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/CloudEurekaClient.java

@@ -23,6 +23,7 @@ import java.util.concurrent.atomic.AtomicReference;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.springframework.cloud.client.discovery.event.HeartbeatEvent;
+import org.springframework.cloud.netflix.eureka.serviceregistry.EurekaServiceRegistry;
 import org.springframework.context.ApplicationEventPublisher;
 import org.springframework.util.ReflectionUtils;
 

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/EurekaClientAutoConfiguration.java

@@ -40,8 +40,12 @@ import org.springframework.cloud.client.CommonsClientAutoConfiguration;
 import org.springframework.cloud.client.actuator.HasFeatures;
 import org.springframework.cloud.client.discovery.DiscoveryClient;
 import org.springframework.cloud.client.discovery.noop.NoopDiscoveryClientAutoConfiguration;
+import org.springframework.cloud.client.serviceregistry.AutoServiceRegistrationProperties;
 import org.springframework.cloud.commons.util.InetUtils;
 import org.springframework.cloud.context.scope.refresh.RefreshScope;
+import org.springframework.cloud.netflix.eureka.serviceregistry.EurekaAutoServiceRegistration;
+import org.springframework.cloud.netflix.eureka.serviceregistry.EurekaRegistration;
+import org.springframework.cloud.netflix.eureka.serviceregistry.EurekaServiceRegistry;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Conditional;
@@ -70,6 +74,7 @@ import static org.springframework.cloud.commons.util.IdUtils.getDefaultInstanceI
 @Configuration
 @EnableConfigurationProperties
 @ConditionalOnClass(EurekaClientConfig.class)
+@ConditionalOnBean(EurekaDiscoveryClientConfiguration.Marker.class)
 @ConditionalOnProperty(value = "eureka.client.enabled", matchIfMissing = true)
 @AutoConfigureBefore({ NoopDiscoveryClientAutoConfiguration.class,
 		CommonsClientAutoConfiguration.class })
@@ -149,6 +154,8 @@ public class EurekaClientAutoConfiguration {
 	}
 
 	@Bean
+	@ConditionalOnBean(AutoServiceRegistrationProperties.class)
+	@ConditionalOnProperty(value = "spring.cloud.service-registry.auto-registration.enabled", matchIfMissing = true)
 	public EurekaRegistration eurekaRegistration(EurekaClient eurekaClient, CloudEurekaInstanceConfig instanceConfig, ApplicationInfoManager applicationInfoManager) {
 		return EurekaRegistration.builder(instanceConfig)
 				.with(applicationInfoManager)
@@ -157,6 +164,13 @@ public class EurekaClientAutoConfiguration {
 				.build();
 	}
 
+	@Bean
+	@ConditionalOnBean(AutoServiceRegistrationProperties.class)
+	@ConditionalOnProperty(value = "spring.cloud.service-registry.auto-registration.enabled", matchIfMissing = true)
+	public EurekaAutoServiceRegistration eurekaAutoServiceRegistration(ApplicationContext context, EurekaServiceRegistry registry, EurekaRegistration registration) {
+		return new EurekaAutoServiceRegistration(context, registry, registration);
+	}
+
 	@Bean
 	@ConditionalOnMissingBean(value = DiscoveryClientOptionalArgs.class, search = SearchStrategy.CURRENT)
 	public MutableDiscoveryClientOptionalArgs discoveryClientOptionalArgs() {

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/EurekaDiscoveryClientConfiguration.java

@@ -16,9 +16,6 @@
 
 package org.springframework.cloud.netflix.eureka;
 
-import java.util.concurrent.atomic.AtomicBoolean;
-import java.util.concurrent.atomic.AtomicInteger;
-
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.actuate.endpoint.Endpoint;
 import org.springframework.boot.actuate.health.HealthAggregator;
@@ -26,17 +23,12 @@ import org.springframework.boot.actuate.health.OrderedHealthAggregator;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
-import org.springframework.boot.context.embedded.EmbeddedServletContainerInitializedEvent;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
-import org.springframework.cloud.client.discovery.event.InstanceRegisteredEvent;
 import org.springframework.cloud.context.scope.refresh.RefreshScopeRefreshedEvent;
-import org.springframework.context.ApplicationContext;
-import org.springframework.context.SmartLifecycle;
+import org.springframework.cloud.netflix.eureka.serviceregistry.EurekaAutoServiceRegistration;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
-import org.springframework.context.event.ContextClosedEvent;
 import org.springframework.context.event.EventListener;
-import org.springframework.core.Ordered;
 
 import com.netflix.appinfo.EurekaInstanceConfig;
 import com.netflix.appinfo.HealthCheckHandler;
@@ -56,104 +48,32 @@ import lombok.extern.apachecommons.CommonsLog;
 @ConditionalOnClass(EurekaClientConfig.class)
 @ConditionalOnProperty(value = "eureka.client.enabled", matchIfMissing = true)
 @CommonsLog
-public class EurekaDiscoveryClientConfiguration implements SmartLifecycle, Ordered {
+public class EurekaDiscoveryClientConfiguration {
 
-	private AtomicBoolean running = new AtomicBoolean(false);
+	class Marker {}
 
-	private int order = 0;
-
-	private AtomicInteger port = new AtomicInteger(0);
-
-	@Autowired
-	private ApplicationContext context;
-
-	@Autowired
-	private EurekaServiceRegistry serviceRegistry;
-
-	@Autowired
-	private EurekaRegistration registration;
-
-	@Override
-	public void start() {
-		// only set the port if the nonSecurePort is 0 and this.port != 0
-		if (this.port.get() != 0 && this.registration.getNonSecurePort() == 0) {
-			this.registration.setNonSecurePort(this.port.get());
-		}
-
-		// only initialize if nonSecurePort is greater than 0 and it isn't already running
-		// because of containerPortInitializer below
-		if (!this.running.get() && this.registration.getNonSecurePort() > 0) {
-
-			this.serviceRegistry.register(this.registration);
-
-			this.context.publishEvent(
-					new InstanceRegisteredEvent<>(this, this.registration.getInstanceConfig()));
-			this.running.set(true);
-		}
-	}
-	@Override
-	public void stop() {
-		this.serviceRegistry.deregister(this.registration);
-		this.running.set(false);
-	}
-
-	@Override
-	public boolean isRunning() {
-		return this.running.get();
-	}
-
-	@Override
-	public int getPhase() {
-		return 0;
-	}
-
-	@Override
-	public boolean isAutoStartup() {
-		return true;
-	}
-
-	@Override
-	public void stop(Runnable callback) {
-		stop();
-		callback.run();
-	}
-
-	@Override
-	public int getOrder() {
-		return this.order;
-	}
-
-	@EventListener(EmbeddedServletContainerInitializedEvent.class)
-	public void onApplicationEvent(EmbeddedServletContainerInitializedEvent event) {
-		// TODO: take SSL into account when Spring Boot 1.2 is available
-		int localPort = event.getEmbeddedServletContainer().getPort();
-		if (this.port.get() == 0) {
-			log.info("Updating port to " + localPort);
-			this.port.compareAndSet(0, localPort);
-			start();
-		}
+	@Bean
+	public Marker eurekaDiscoverClientMarker() {
+		return new Marker();
 	}
 
 	@Configuration
 	@ConditionalOnClass(RefreshScopeRefreshedEvent.class)
 	protected static class EurekaClientConfigurationRefresher {
-		@Autowired
-		private EurekaDiscoveryClientConfiguration clientConfig;
+
+		@Autowired(required = false)
+		private EurekaAutoServiceRegistration autoRegistration;
 
 		@EventListener(RefreshScopeRefreshedEvent.class)
 		public void onApplicationEvent(RefreshScopeRefreshedEvent event) {
-			// register in case meta data changed
-			this.clientConfig.stop();
-			this.clientConfig.start();
+			if (autoRegistration != null) {
+				// register in case meta data changed
+				this.autoRegistration.stop();
+				this.autoRegistration.start();
+			}
 		}
 	}
 
-	@EventListener(ContextClosedEvent.class)
-	public void onApplicationEvent(ContextClosedEvent event) {
-		// register in case meta data changed
-		stop();
-	}
-
 	@Configuration
 	@ConditionalOnClass(Endpoint.class)
 	protected static class EurekaHealthIndicatorConfiguration {

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/serviceregistry/EurekaAutoServiceRegistration.java

@@ -0,0 +1,129 @@
+/*
+ * Copyright 2013-2016 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.eureka.serviceregistry;
+
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.springframework.boot.context.embedded.EmbeddedServletContainerInitializedEvent;
+import org.springframework.cloud.client.discovery.event.InstanceRegisteredEvent;
+import org.springframework.cloud.client.serviceregistry.AutoServiceRegistration;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.SmartLifecycle;
+import org.springframework.context.event.ContextClosedEvent;
+import org.springframework.context.event.EventListener;
+import org.springframework.core.Ordered;
+
+/**
+ * @author Dave Syer
+ * @author Spencer Gibb
+ * @author Jon Schneider
+ * @author Jakub Narloch
+ */
+public class EurekaAutoServiceRegistration implements AutoServiceRegistration, SmartLifecycle, Ordered {
+
+	private static final Log log = LogFactory.getLog(EurekaAutoServiceRegistration.class);
+
+	private AtomicBoolean running = new AtomicBoolean(false);
+
+	private int order = 0;
+
+	private AtomicInteger port = new AtomicInteger(0);
+
+	private ApplicationContext context;
+
+	private EurekaServiceRegistry serviceRegistry;
+
+	private EurekaRegistration registration;
+
+	public EurekaAutoServiceRegistration(ApplicationContext context, EurekaServiceRegistry serviceRegistry, EurekaRegistration registration) {
+		this.context = context;
+		this.serviceRegistry = serviceRegistry;
+		this.registration = registration;
+	}
+
+	@Override
+	public void start() {
+		// only set the port if the nonSecurePort is 0 and this.port != 0
+		if (this.port.get() != 0 && this.registration.getNonSecurePort() == 0) {
+			this.registration.setNonSecurePort(this.port.get());
+		}
+
+		// only initialize if nonSecurePort is greater than 0 and it isn't already running
+		// because of containerPortInitializer below
+		if (!this.running.get() && this.registration.getNonSecurePort() > 0) {
+
+			this.serviceRegistry.register(this.registration);
+
+			this.context.publishEvent(
+					new InstanceRegisteredEvent<>(this, this.registration.getInstanceConfig()));
+			this.running.set(true);
+		}
+	}
+	@Override
+	public void stop() {
+		this.serviceRegistry.deregister(this.registration);
+		this.running.set(false);
+	}
+
+	@Override
+	public boolean isRunning() {
+		return this.running.get();
+	}
+
+	@Override
+	public int getPhase() {
+		return 0;
+	}
+
+	@Override
+	public boolean isAutoStartup() {
+		return true;
+	}
+
+	@Override
+	public void stop(Runnable callback) {
+		stop();
+		callback.run();
+	}
+
+	@Override
+	public int getOrder() {
+		return this.order;
+	}
+
+	@EventListener(EmbeddedServletContainerInitializedEvent.class)
+	public void onApplicationEvent(EmbeddedServletContainerInitializedEvent event) {
+		// TODO: take SSL into account when Spring Boot 1.2 is available
+		int localPort = event.getEmbeddedServletContainer().getPort();
+		if (this.port.get() == 0) {
+			log.info("Updating port to " + localPort);
+			this.port.compareAndSet(0, localPort);
+			start();
+		}
+	}
+
+	@EventListener(ContextClosedEvent.class)
+	public void onApplicationEvent(ContextClosedEvent event) {
+		// register in case meta data changed
+		stop();
+	}
+
+}

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/serviceregistry/EurekaRegistration.java

@@ -15,7 +15,7 @@
  *
  */
 
-package org.springframework.cloud.netflix.eureka;
+package org.springframework.cloud.netflix.eureka.serviceregistry;
 
 import java.util.concurrent.atomic.AtomicReference;
 
@@ -24,6 +24,9 @@ import org.apache.commons.logging.LogFactory;
 import org.springframework.aop.framework.Advised;
 import org.springframework.aop.support.AopUtils;
 import org.springframework.cloud.client.serviceregistry.Registration;
+import org.springframework.cloud.netflix.eureka.CloudEurekaClient;
+import org.springframework.cloud.netflix.eureka.CloudEurekaInstanceConfig;
+import org.springframework.cloud.netflix.eureka.InstanceInfoFactory;
 import org.springframework.context.ApplicationEventPublisher;
 import org.springframework.util.Assert;
 

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/serviceregistry/EurekaServiceRegistry.java

@@ -15,13 +15,12 @@
  *
  */
 
-package org.springframework.cloud.netflix.eureka;
+package org.springframework.cloud.netflix.eureka.serviceregistry;
 
 import java.util.HashMap;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
-import org.springframework.cloud.client.serviceregistry.AutoServiceRegistration;
 import org.springframework.cloud.client.serviceregistry.ServiceRegistry;
 
 import com.netflix.appinfo.InstanceInfo;
@@ -29,7 +28,7 @@ import com.netflix.appinfo.InstanceInfo;
 /**
  * @author Spencer Gibb
  */
-public class EurekaServiceRegistry implements ServiceRegistry<EurekaRegistration>, AutoServiceRegistration {
+public class EurekaServiceRegistry implements ServiceRegistry<EurekaRegistration> {
 
 	private static final Log log = LogFactory.getLog(EurekaServiceRegistry.class);
 

spring-cloud-netflix-eureka-client/src/test/java/org/springframework/cloud/netflix/eureka/EurekaClientAutoConfigurationTests.java

@@ -52,7 +52,7 @@ public class EurekaClientAutoConfigurationTests {
 	}
 
 	private void setupContext(Class<?>... config) {
-		this.context.register(PropertyPlaceholderAutoConfiguration.class);
+		this.context.register(PropertyPlaceholderAutoConfiguration.class, EurekaDiscoveryClientConfiguration.class);
 		for (Class<?> value : config) {
 			this.context.register(value);
 		}

spring-cloud-netflix-eureka-client/src/test/java/org/springframework/cloud/netflix/eureka/config/DiscoveryClientConfigServiceAutoConfigurationTests.java

@@ -28,6 +28,7 @@ import org.springframework.cloud.config.client.ConfigClientProperties;
 import org.springframework.cloud.config.client.DiscoveryClientConfigServiceBootstrapConfiguration;
 import org.springframework.cloud.netflix.eureka.CloudEurekaClient;
 import org.springframework.cloud.netflix.eureka.EurekaClientAutoConfiguration;
+import org.springframework.cloud.netflix.eureka.EurekaDiscoveryClientConfiguration;
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
@@ -81,6 +82,7 @@ public class DiscoveryClientConfigServiceAutoConfigurationTests {
 		AnnotationConfigApplicationContext parent = new AnnotationConfigApplicationContext();
 		EnvironmentTestUtils.addEnvironment(parent, env);
 		parent.register(UtilAutoConfiguration.class,
+				EurekaDiscoveryClientConfiguration.class,
 				PropertyPlaceholderAutoConfiguration.class, EnvironmentKnobbler.class,
 				EurekaDiscoveryClientConfigServiceBootstrapConfiguration.class,
 				DiscoveryClientConfigServiceBootstrapConfiguration.class,

spring-cloud-netflix-eureka-client/src/test/java/org/springframework/cloud/netflix/eureka/sample/EurekaSampleApplication.java

@@ -16,42 +16,39 @@
 
 package org.springframework.cloud.netflix.eureka.sample;
 
+import java.io.Closeable;
+import java.io.IOException;
+
 import org.springframework.beans.BeansException;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.actuate.metrics.repository.InMemoryMetricRepository;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.builder.SpringApplicationBuilder;
 import org.springframework.cloud.client.discovery.DiscoveryClient;
-import org.springframework.cloud.client.discovery.event.InstanceRegisteredEvent;
+import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
 import org.springframework.cloud.client.serviceregistry.ServiceRegistry;
 import org.springframework.cloud.commons.util.InetUtils;
-import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
 import org.springframework.cloud.netflix.eureka.EurekaClientConfigBean;
 import org.springframework.cloud.netflix.eureka.EurekaInstanceConfigBean;
-import org.springframework.cloud.netflix.eureka.EurekaRegistration;
+import org.springframework.cloud.netflix.eureka.serviceregistry.EurekaRegistration;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.ApplicationContextAware;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.ComponentScan;
 import org.springframework.context.annotation.Configuration;
-import org.springframework.context.event.EventListener;
 import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.RestController;
 
 import com.netflix.appinfo.HealthCheckHandler;
 import com.netflix.appinfo.InstanceInfo;
 
-import java.io.Closeable;
-import java.io.IOException;
-
 import static org.springframework.web.bind.annotation.RequestMethod.POST;
 
 @Configuration
 @ComponentScan
 @EnableAutoConfiguration
 @RestController
-@EnableEurekaClient
+@EnableDiscoveryClient
 public class EurekaSampleApplication implements ApplicationContextAware, Closeable {
 
 	@Autowired

spring-cloud-netflix-eureka-client/src/test/java/org/springframework/cloud/netflix/ribbon/eureka/EurekaRibbonClientPreprocessorIntegrationTests.java

@@ -24,6 +24,7 @@ import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.cloud.commons.util.UtilAutoConfiguration;
 import org.springframework.cloud.netflix.archaius.ArchaiusAutoConfiguration;
 import org.springframework.cloud.netflix.eureka.EurekaClientAutoConfiguration;
+import org.springframework.cloud.netflix.eureka.EurekaDiscoveryClientConfiguration;
 import org.springframework.cloud.netflix.ribbon.RibbonAutoConfiguration;
 import org.springframework.cloud.netflix.ribbon.RibbonClient;
 import org.springframework.cloud.netflix.ribbon.ServerIntrospector;
@@ -80,7 +81,8 @@ public class EurekaRibbonClientPreprocessorIntegrationTests {
 	@RibbonClient("foo")
 	@Import({ UtilAutoConfiguration.class, PropertyPlaceholderAutoConfiguration.class,
 			ArchaiusAutoConfiguration.class, RibbonAutoConfiguration.class,
-			EurekaClientAutoConfiguration.class, RibbonEurekaAutoConfiguration.class })
+			EurekaDiscoveryClientConfiguration.class, EurekaClientAutoConfiguration.class,
+			RibbonEurekaAutoConfiguration.class })
 	protected static class TestConfiguration {
 
 	}