Auto configuration support for JMX export

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/jmx/JmxAutoConfiguration.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2013 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.boot.autoconfigure.jmx;
+
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnExpression;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.EnableMBeanExport;
+import org.springframework.jmx.export.MBeanExporter;
+
+/**
+ * {@link EnableAutoConfiguration Auto-configuration} to enable/disiable Spring's
+ * {@link EnableMBeanExport} mechanism based on configuration properties.
+ * 
+ * <p>
+ * To enable auto export of annotation beans set <code>spring.jmx.enabled: true</code>.
+ * 
+ * @author Christian Dupuis
+ */
+@Configuration
+@ConditionalOnClass({ MBeanExporter.class })
+@ConditionalOnMissingBean({ MBeanExporter.class })
+@ConditionalOnExpression("${spring.jmx.enabled:false}")
+public class JmxAutoConfiguration {
+
+	@Configuration
+	@EnableMBeanExport(defaultDomain = "${spring.jmx.default_domain:}", server = "${spring.jmx.server:}")
+	public static class MBeanExport {
+	}
+
+}

spring-boot-autoconfigure/src/main/resources/META-INF/spring.factories

@@ -11,6 +11,7 @@ org.springframework.boot.autoconfigure.redis.RedisAutoConfiguration,\
 org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration,\
 org.springframework.boot.autoconfigure.jdbc.DataSourceTransactionManagerAutoConfiguration,\
 org.springframework.boot.autoconfigure.jms.JmsTemplateAutoConfiguration,\
+org.springframework.boot.autoconfigure.jmx.JmxAutoConfiguration,\
 org.springframework.boot.autoconfigure.mobile.DeviceResolverAutoConfiguration,\
 org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration,\
 org.springframework.boot.autoconfigure.reactor.ReactorAutoConfiguration,\

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/jmx/JmxAutoConfigurationTests.java

@@ -0,0 +1,115 @@
+/*
+ * Copyright 2013 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.boot.autoconfigure.jmx;
+
+import org.junit.After;
+import org.junit.Test;
+import org.springframework.beans.factory.NoSuchBeanDefinitionException;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.jmx.export.MBeanExporter;
+import org.springframework.jmx.export.annotation.ManagedAttribute;
+import org.springframework.jmx.export.annotation.ManagedOperation;
+import org.springframework.jmx.export.annotation.ManagedResource;
+import org.springframework.mock.env.MockEnvironment;
+
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.fail;
+
+/**
+ * Tests for {@link JmxAutoConfiguration}
+ * 
+ * @author Christian Dupuis
+ */
+public class JmxAutoConfigurationTests {
+
+	private AnnotationConfigApplicationContext context;
+
+	@After
+	public void tearDown() {
+		if (this.context != null) {
+			this.context.close();
+		}
+	}
+
+	@Test(expected = NoSuchBeanDefinitionException.class)
+	public void testDefaultMBeanExport() {
+		this.context = new AnnotationConfigApplicationContext();
+		this.context.register(JmxAutoConfiguration.class);
+		this.context.refresh();
+
+		this.context.getBean(MBeanExporter.class);
+		fail();
+	}
+
+	@Test(expected = NoSuchBeanDefinitionException.class)
+	public void testDisabledMBeanExport() {
+		MockEnvironment env = new MockEnvironment();
+		env.setProperty("spring.jmx.enabled", "false");
+		this.context = new AnnotationConfigApplicationContext();
+		this.context.setEnvironment(env);
+		this.context.register(TestConfiguration.class, JmxAutoConfiguration.class);
+		this.context.refresh();
+
+		this.context.getBean(MBeanExporter.class);
+		fail();
+	}
+
+	@Test
+	public void testDefaultDomainConfiguredOnMBeanExport() {
+		MockEnvironment env = new MockEnvironment();
+		env.setProperty("spring.jmx.enabled", "true");
+		env.setProperty("spring.jmx.default_domain", "my-test-domain");
+		this.context = new AnnotationConfigApplicationContext();
+		this.context.setEnvironment(env);
+		this.context.register(TestConfiguration.class, JmxAutoConfiguration.class);
+		this.context.refresh();
+
+		MBeanExporter mBeanExporter = this.context.getBean(MBeanExporter.class);
+		assertNotNull(mBeanExporter);
+
+		// TODO cdupuis add test for default domain
+	}
+
+	@Configuration
+	public static class TestConfiguration {
+
+		@Bean
+		public Counter counter() {
+			return new Counter();
+		}
+
+		@ManagedResource
+		public static class Counter {
+
+			private int counter = 0;
+
+			@ManagedAttribute
+			public int get() {
+				return this.counter;
+			}
+
+			@ManagedOperation
+			public void increment() {
+				this.counter++;
+			}
+
+		}
+
+	}
+}