Resolve spring.application.name value via a property resolver instead of @Value. Fixes #1398

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

@@ -64,6 +64,7 @@ import static org.springframework.cloud.commons.util.IdUtils.getDefaultInstanceI
  * @author Spencer Gibb
  * @author Jon Schneider
  * @author Matt Jenkins
+ * @author Ryan Baxter
  */
 @Configuration
 @EnableConfigurationProperties
@@ -107,9 +108,16 @@ public class EurekaClientAutoConfiguration {
 	@ConditionalOnMissingBean(value = EurekaInstanceConfig.class, search = SearchStrategy.CURRENT)
 	public EurekaInstanceConfigBean eurekaInstanceConfigBean(InetUtils inetUtils) {
 		RelaxedPropertyResolver relaxedPropertyResolver = new RelaxedPropertyResolver(env, "eureka.instance.");
+		RelaxedPropertyResolver springPropertyResolver = new RelaxedPropertyResolver(env, "spring.application.");
+		String springAppName = springPropertyResolver.getProperty("name");
 		EurekaInstanceConfigBean instance = new EurekaInstanceConfigBean(inetUtils);
 		instance.setNonSecurePort(this.nonSecurePort);
 		instance.setInstanceId(getDefaultInstanceId(this.env));
+		if(springAppName != null) {
+			instance.setAppname(springAppName);
+			instance.setVirtualHostName(springAppName);
+			instance.setSecureVirtualHostName(springAppName);
+		}
 		if (this.managementPort != this.nonSecurePort && this.managementPort != 0) {
 			if (StringUtils.hasText(this.hostname)) {
 				instance.setHostname(this.hostname);

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

@@ -16,31 +16,31 @@
 
 package org.springframework.cloud.netflix.eureka;
 
+import lombok.AccessLevel;
+import lombok.Data;
+import lombok.Getter;
+import lombok.Setter;
+
 import java.util.HashMap;
 import java.util.Map;
-
-import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.cloud.commons.util.InetUtils;
 import org.springframework.cloud.commons.util.InetUtils.HostInfo;
-
 import com.netflix.appinfo.DataCenterInfo;
 import com.netflix.appinfo.InstanceInfo.InstanceStatus;
 import com.netflix.appinfo.MyDataCenterInfo;
 
-import lombok.AccessLevel;
-import lombok.Data;
-import lombok.Getter;
-import lombok.Setter;
-
 /**
  * @author Dave Syer
  * @author Spencer Gibb
+ * @author Ryan Baxter
  */
 @Data
 @ConfigurationProperties("eureka.instance")
 public class EurekaInstanceConfigBean implements CloudEurekaInstanceConfig {
 
+	private static final String UNKNOWN = "unknown";
+
 	@Getter(AccessLevel.PRIVATE)
 	@Setter(AccessLevel.PRIVATE)
 	private HostInfo hostInfo;
@@ -52,8 +52,7 @@ public class EurekaInstanceConfigBean implements CloudEurekaInstanceConfig {
 	/**
 	 * Get the name of the application to be registered with eureka.
 	 */
-	@Value("${spring.application.name:unknown}")
-	private String appname = "unknown";
+	private String appname = UNKNOWN;
 
 	/**
 	 * Get the name of the application group to be registered with eureka.
@@ -119,8 +118,7 @@ public class EurekaInstanceConfigBean implements CloudEurekaInstanceConfig {
 	 * virtual host name.Think of this as similar to the fully qualified domain name, that
 	 * the users of your services will need to find this instance.
 	 */
-	@Value("${spring.application.name:unknown}")
-	private String virtualHostName;
+	private String virtualHostName = UNKNOWN;
 
 	/**
 	 * Get the unique Id (within the scope of the appName) of this instance to be
@@ -135,8 +133,7 @@ public class EurekaInstanceConfigBean implements CloudEurekaInstanceConfig {
 	 * secure virtual host name.Think of this as similar to the fully qualified domain
 	 * name, that the users of your services will need to find this instance.
 	 */
-	@Value("${spring.application.name:unknown}")
-	private String secureVirtualHostName;
+	private String secureVirtualHostName = UNKNOWN;
 
 	/**
 	 * Gets the AWS autoscaling group name associated with this instance. This information

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

@@ -20,15 +20,17 @@ import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 import org.springframework.beans.factory.BeanCreationException;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.PropertyPlaceholderAutoConfiguration;
+import org.springframework.boot.bind.RelaxedPropertyResolver;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.cloud.commons.util.InetUtils;
 import org.springframework.cloud.commons.util.InetUtilsProperties;
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.core.env.ConfigurableEnvironment;
 import org.springframework.test.util.ReflectionTestUtils;
-
 import com.netflix.appinfo.InstanceInfo.InstanceStatus;
 
 import static org.junit.Assert.assertEquals;
@@ -38,6 +40,7 @@ import static org.springframework.boot.test.util.EnvironmentTestUtils.addEnviron
 /**
  * @author Dave Syer
  * @author Spencer Gibb
+ * @author Ryan Baxter
  */
 public class EurekaInstanceConfigBeanTests {
 
@@ -185,6 +188,14 @@ public class EurekaInstanceConfigBeanTests {
 
 	}
 
+	@Test
+	public void testDefaultAppName() throws Exception {
+		setupContext();
+		assertEquals("default app name is wrong", "unknown", getInstanceConfig().getAppname());
+		assertEquals("default virtual hostname is wrong", "unknown", getInstanceConfig().getVirtualHostName());
+		assertEquals("default secure virtual hostname is wrong", "unknown", getInstanceConfig().getSecureVirtualHostName());
+	}
+
 	private void setupContext() {
 		this.context.register(PropertyPlaceholderAutoConfiguration.class,
 				TestConfiguration.class);
@@ -198,9 +209,19 @@ public class EurekaInstanceConfigBeanTests {
 	@Configuration
 	@EnableConfigurationProperties
 	protected static class TestConfiguration {
+		@Autowired
+		ConfigurableEnvironment env;
 		@Bean
 		public EurekaInstanceConfigBean eurekaInstanceConfigBean() {
-			return new EurekaInstanceConfigBean(new InetUtils(new InetUtilsProperties()));
+			EurekaInstanceConfigBean configBean = new EurekaInstanceConfigBean(new InetUtils(new InetUtilsProperties()));
+			RelaxedPropertyResolver springPropertyResolver = new RelaxedPropertyResolver(env, "spring.application.");
+			String springAppName = springPropertyResolver.getProperty("name");
+			if(springAppName != null) {
+				configBean.setSecureVirtualHostName(springAppName);
+				configBean.setVirtualHostName(springAppName);
+				configBean.setAppname(springAppName);
+			}
+			return configBean;
 		}
 
 	}

spring-cloud-netflix-sidecar/src/main/java/org/springframework/cloud/netflix/sidecar/SidecarConfiguration.java

@@ -16,10 +16,13 @@
 
 package org.springframework.cloud.netflix.sidecar;
 
+import static org.springframework.cloud.commons.util.IdUtils.getDefaultInstanceId;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.boot.bind.RelaxedPropertyResolver;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.cloud.client.actuator.HasFeatures;
 import org.springframework.cloud.commons.util.InetUtils;
@@ -32,10 +35,9 @@ import org.springframework.util.StringUtils;
 import com.netflix.appinfo.HealthCheckHandler;
 import com.netflix.discovery.EurekaClientConfig;
 
-import static org.springframework.cloud.commons.util.IdUtils.getDefaultInstanceId;
-
 /**
  * @author Spencer Gibb
+ * @author Ryan Baxter
  */
 @Configuration
 @EnableConfigurationProperties
@@ -73,9 +75,16 @@ public class SidecarConfiguration {
 		@Bean
 		public EurekaInstanceConfigBean eurekaInstanceConfigBean() {
 			EurekaInstanceConfigBean config = new EurekaInstanceConfigBean(inetUtils);
+			RelaxedPropertyResolver springPropertyResolver = new RelaxedPropertyResolver(env, "spring.application.");
+			String springAppName = springPropertyResolver.getProperty("name");
 			int port = this.sidecarProperties.getPort();
 			config.setNonSecurePort(port);
 			config.setInstanceId(getDefaultInstanceId(this.env));
+			if(StringUtils.hasText(springAppName)) {
+				config.setAppname(springAppName);
+				config.setVirtualHostName(springAppName);
+				config.setSecureVirtualHostName(springAppName);
+			}
 			if (StringUtils.hasText(this.hostname)) {
 				config.setHostname(this.hostname);
 			}