Polish

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/autoconfigure/HealthIndicatorAutoConfiguration.java

 /*
- * Copyright 2014 the original author or authors.
+ * Copyright 2012-2014 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.
@@ -28,6 +28,7 @@ import org.springframework.boot.actuate.health.RedisHealthIndicator;
 import org.springframework.boot.actuate.health.SimpleDataSourceHealthIndicator;
 import org.springframework.boot.actuate.health.VanillaHealthIndicator;
 import org.springframework.boot.autoconfigure.AutoConfigureAfter;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.autoconfigure.jdbc.CommonsDataSourceConfiguration;
@@ -44,6 +45,8 @@ import org.springframework.data.mongodb.core.MongoTemplate;
 import org.springframework.data.redis.connection.RedisConnectionFactory;
 
 /**
+ * {@link EnableAutoConfiguration Auto-configuration} for {@link HealthIndicator}s.
+ * 
  * @author Christian Dupuis
  * @since 1.1.0
  */
@@ -72,14 +75,14 @@ public class HealthIndicatorAutoConfiguration {
 		@ConditionalOnMissingBean(name = "dbHealthIndicator")
 		public HealthIndicator<? extends Object> dbHealthIndicator() {
 			if (this.dataSources.size() == 1) {
-				return new SimpleDataSourceHealthIndicator(this.dataSources.values().iterator()
-						.next());
+				return new SimpleDataSourceHealthIndicator(this.dataSources.values()
+						.iterator().next());
 			}
 
 			CompositeHealthIndicator composite = new CompositeHealthIndicator();
 			for (Map.Entry<String, DataSource> entry : this.dataSources.entrySet()) {
-				composite.addHealthIndicator(entry.getKey(), new SimpleDataSourceHealthIndicator(
-						entry.getValue()));
+				composite.addHealthIndicator(entry.getKey(),
+						new SimpleDataSourceHealthIndicator(entry.getValue()));
 			}
 			return composite;
 		}

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

@@ -59,9 +59,9 @@ public class HealthEndpoint extends AbstractEndpoint<Map<String, Object>> {
 	 * Turns the bean name into a key that can be used in the map of health information.
 	 */
 	private String getKey(String name) {
-		int x = name.toLowerCase().indexOf("healthindicator");
-		if (x > 0) {
-			return name.substring(0, x);
+		int index = name.toLowerCase().indexOf("healthindicator");
+		if (index > 0) {
+			return name.substring(0, index);
 		}
 		return name;
 	}

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/health/MongoHealthIndicator.java

 /*
- * Copyright 2014 the original author or authors.
+ * Copyright 2012-2014 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.
@@ -20,6 +20,7 @@ import java.util.HashMap;
 import java.util.Map;
 
 import org.springframework.data.mongodb.core.MongoTemplate;
+import org.springframework.util.Assert;
 
 import com.mongodb.CommandResult;
 
@@ -35,6 +36,7 @@ public class MongoHealthIndicator implements HealthIndicator<Map<String, Object>
 	private final MongoTemplate mongoTemplate;
 
 	public MongoHealthIndicator(MongoTemplate mongoTemplate) {
+		Assert.notNull(mongoTemplate, "MongoTemplate must not be null");
 		this.mongoTemplate = mongoTemplate;
 	}
 

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/health/RedisHealthIndicator.java

 /*
- * Copyright 2014 the original author or authors.
+ * Copyright 2012-2014 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.
@@ -23,6 +23,7 @@ import java.util.Properties;
 import org.springframework.data.redis.connection.RedisConnection;
 import org.springframework.data.redis.connection.RedisConnectionFactory;
 import org.springframework.data.redis.core.RedisConnectionUtils;
+import org.springframework.util.Assert;
 
 /**
  * Simple implementation of a {@link HealthIndicator} returning status information for
@@ -36,6 +37,7 @@ public class RedisHealthIndicator implements HealthIndicator<Map<String, Object>
 	private final RedisConnectionFactory redisConnectionFactory;
 
 	public RedisHealthIndicator(RedisConnectionFactory connectionFactory) {
+		Assert.notNull(connectionFactory, "ConnectionFactory must not be null");
 		this.redisConnectionFactory = connectionFactory;
 	}
 

spring-boot-actuator/src/test/java/org/springframework/boot/actuate/autoconfigure/HealthIndicatorAutoConfigurationTests.java

 /*
- * Copyright 2014 the original author or authors.
+ * Copyright 2012-2014 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.
@@ -120,7 +120,7 @@ public class HealthIndicatorAutoConfigurationTests {
 		Map<String, HealthIndicator> beans = this.context
 				.getBeansOfType(HealthIndicator.class);
 		assertEquals(1, beans.size());
-		assertEquals(SimpleDataSourceHealthIndicator.class, beans.values().iterator().next()
-				.getClass());
+		assertEquals(SimpleDataSourceHealthIndicator.class, beans.values().iterator()
+				.next().getClass());
 	}
 }

spring-boot-actuator/src/test/java/org/springframework/boot/actuate/health/MongoHealthIndicatorTests.java

 /*
- * Copyright 2014 the original author or authors.
+ * Copyright 2012-2014 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.

spring-boot-actuator/src/test/java/org/springframework/boot/actuate/health/RedisHealthIndicatorTests.java

 /*
- * Copyright 2014 the original author or authors.
+ * Copyright 2012-2014 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.