Honor the endpoint.enabled property when registering MBeans

Fixes gh-2873
Closes gh-2890

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/jmx/EndpointMBeanExporter.java

 /*
- * Copyright 2013-2014 the original author or authors.
+ * Copyright 2013-2015 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.
@@ -138,7 +138,8 @@ public class EndpointMBeanExporter extends MBeanExporter implements SmartLifecyc
 	protected void locateAndRegisterEndpoints() {
 		Map<String, Endpoint> endpoints = this.beanFactory.getBeansOfType(Endpoint.class);
 		for (Map.Entry<String, Endpoint> endpointEntry : endpoints.entrySet()) {
-			if (!this.registeredEndpoints.contains(endpointEntry.getValue())) {
+			if (!this.registeredEndpoints.contains(endpointEntry.getValue())
+					&& endpointEntry.getValue().isEnabled()) {
 				registerEndpoint(endpointEntry.getKey(), endpointEntry.getValue());
 				this.registeredEndpoints.add(endpointEntry.getValue());
 			}

spring-boot-actuator/src/test/java/org/springframework/boot/actuate/endpoint/jmx/EndpointMBeanExporterTests.java

 /*
- * Copyright 2013 the original author or authors.
+ * Copyright 2013-2015 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.
@@ -37,7 +37,9 @@ import org.springframework.jmx.support.ObjectNameManager;
 import org.springframework.util.ObjectUtils;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
 
 /**
  * Tests for {@link EndpointMBeanExporter}
@@ -73,6 +75,36 @@ public class EndpointMBeanExporterTests {
 		assertEquals(3, mbeanInfo.getAttributes().length);
 	}
 
+	@Test
+	public void testSkipRegistrationOfDisabledEndpoint() throws Exception {
+		this.context = new GenericApplicationContext();
+		this.context.registerBeanDefinition("endpointMbeanExporter",
+				new RootBeanDefinition(EndpointMBeanExporter.class));
+		MutablePropertyValues mvp = new MutablePropertyValues();
+		mvp.add("enabled", Boolean.FALSE);
+		this.context.registerBeanDefinition("endpoint1", new RootBeanDefinition(
+				TestEndpoint.class, null, mvp));
+		this.context.refresh();
+		MBeanExporter mbeanExporter = this.context.getBean(EndpointMBeanExporter.class);
+		assertFalse(mbeanExporter.getServer().isRegistered(
+				getObjectName("endpoint1", this.context)));
+	}
+
+	@Test
+	public void testRegistrationOfEnabledEndpoint() throws Exception {
+		this.context = new GenericApplicationContext();
+		this.context.registerBeanDefinition("endpointMbeanExporter",
+				new RootBeanDefinition(EndpointMBeanExporter.class));
+		MutablePropertyValues mvp = new MutablePropertyValues();
+		mvp.add("enabled", Boolean.TRUE);
+		this.context.registerBeanDefinition("endpoint1", new RootBeanDefinition(
+				TestEndpoint.class, null, mvp));
+		this.context.refresh();
+		MBeanExporter mbeanExporter = this.context.getBean(EndpointMBeanExporter.class);
+		assertTrue(mbeanExporter.getServer().isRegistered(
+				getObjectName("endpoint1", this.context)));
+	}
+
 	@Test
 	public void testRegistrationTwoEndpoints() throws Exception {
 		this.context = new GenericApplicationContext();