Initialize beans after rebinding as necessary

On startup a bean will be bound by the
ConfigurationPropertiesBindingPostProcessor and then initialized
by the ApplicationContext. The ConfigurationPropertiesRebinder
does the binding but not the initialization (until this change).

Fixes gh-80

spring-cloud-config-client/src/main/java/org/springframework/cloud/context/properties/ConfigurationPropertiesRebinder.java

@@ -25,12 +25,14 @@ import org.springframework.beans.factory.config.BeanPostProcessor;
 import org.springframework.boot.context.properties.ConfigurationBeanFactoryMetaData;
 import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.boot.context.properties.ConfigurationPropertiesBindingPostProcessor;
+import org.springframework.cloud.context.environment.EnvironmentChangeEvent;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.ApplicationContextAware;
 import org.springframework.context.ApplicationListener;
 import org.springframework.core.annotation.AnnotationUtils;
 import org.springframework.jmx.export.annotation.ManagedAttribute;
 import org.springframework.jmx.export.annotation.ManagedOperation;
 import org.springframework.jmx.export.annotation.ManagedResource;
-import org.springframework.cloud.context.environment.EnvironmentChangeEvent;
 import org.springframework.stereotype.Component;
 
 /**
@@ -39,7 +41,8 @@ import org.springframework.stereotype.Component;
  */
 @Component
 @ManagedResource
-public class ConfigurationPropertiesRebinder implements BeanPostProcessor, ApplicationListener<EnvironmentChangeEvent> {
+public class ConfigurationPropertiesRebinder implements BeanPostProcessor,
+		ApplicationListener<EnvironmentChangeEvent>, ApplicationContextAware {
 
 	private ConfigurationBeanFactoryMetaData metaData;
 
@@ -52,6 +55,14 @@ public class ConfigurationPropertiesRebinder implements BeanPostProcessor, Appli
 
 	private Map<String, Object> beans = new HashMap<String, Object>();
 
+	private ApplicationContext applicationContext;
+
+	@Override
+	public void setApplicationContext(ApplicationContext applicationContext)
+			throws BeansException {
+		this.applicationContext = applicationContext;
+	}
+
 	/**
 	 * @param beans the bean meta data to set
 	 */
@@ -93,13 +104,17 @@ public class ConfigurationPropertiesRebinder implements BeanPostProcessor, Appli
 	@ManagedOperation
 	public void rebind(String name) {
 		binder.postProcessBeforeInitialization(beans.get(name), name);
+		if (applicationContext != null) {
+			applicationContext.getAutowireCapableBeanFactory().initializeBean(
+					beans.get(name), name);
+		}
 	}
-	
+
 	@ManagedAttribute
 	public Set<String> getBeanNames() {
 		return new HashSet<String>(beans.keySet());
 	}
-	
+
 	@Override
 	public void onApplicationEvent(EnvironmentChangeEvent event) {
 		rebind();

spring-cloud-config-client/src/test/java/org/springframework/cloud/context/properties/ConfigurationPropertiesRebinderIntegrationTests.java

@@ -17,6 +17,8 @@ package org.springframework.cloud.context.properties;
 
 import static org.junit.Assert.assertEquals;
 
+import javax.annotation.PostConstruct;
+
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -55,17 +57,20 @@ public class ConfigurationPropertiesRebinderIntegrationTests {
 		EnvironmentTestUtils.addEnvironment(environment, "message:Foo");
 		// ...but don't refresh, so the bean stays the same:
 		assertEquals("Hello scope!", properties.getMessage());
+		assertEquals(1, properties.getCount());
 	}
 
 	@Test
 	@DirtiesContext
 	public void testRefresh() throws Exception {
+		assertEquals(1, properties.getCount());
 		assertEquals("Hello scope!", properties.getMessage());
 		// Change the dynamic property source...
 		EnvironmentTestUtils.addEnvironment(environment, "message:Foo");
 		// ...and then refresh, so the bean is re-initialized:
 		rebinder.rebind();
 		assertEquals("Foo", properties.getMessage());
+		assertEquals(2, properties.getCount());
 	}
 	
 	@Configuration
@@ -84,6 +89,10 @@ public class ConfigurationPropertiesRebinderIntegrationTests {
 	protected static class TestProperties {
 		private String message;
 		private int delay;
+		private int count = 0;
+		public int getCount() {
+			return count;
+		}
 		public String getMessage() {
 			return message;
 		}
@@ -96,6 +105,10 @@ public class ConfigurationPropertiesRebinderIntegrationTests {
 		public void setDelay(int delay) {
 			this.delay = delay;
 		}
+		@PostConstruct
+		public void init() {
+			this.count ++;
+		}
 	}
 	
 }