Add Couchbase support

Closes gh-3498

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

@@ -22,6 +22,7 @@ import java.util.Map;
 import javax.jms.ConnectionFactory;
 import javax.sql.DataSource;
 
+import com.couchbase.client.java.Bucket;
 import com.datastax.driver.core.Cluster;
 import org.apache.solr.client.solrj.SolrClient;
 import org.elasticsearch.client.Client;
@@ -32,6 +33,7 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.actuate.health.ApplicationHealthIndicator;
 import org.springframework.boot.actuate.health.CassandraHealthIndicator;
 import org.springframework.boot.actuate.health.CompositeHealthIndicator;
+import org.springframework.boot.actuate.health.CouchbaseHealthIndicator;
 import org.springframework.boot.actuate.health.DataSourceHealthIndicator;
 import org.springframework.boot.actuate.health.DiskSpaceHealthIndicator;
 import org.springframework.boot.actuate.health.DiskSpaceHealthIndicatorProperties;
@@ -54,6 +56,7 @@ import org.springframework.boot.autoconfigure.cassandra.CassandraAutoConfigurati
 import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.boot.autoconfigure.couchbase.CouchbaseAutoConfiguration;
 import org.springframework.boot.autoconfigure.data.cassandra.CassandraDataAutoConfiguration;
 import org.springframework.boot.autoconfigure.data.elasticsearch.ElasticsearchAutoConfiguration;
 import org.springframework.boot.autoconfigure.data.mongo.MongoDataAutoConfiguration;
@@ -71,6 +74,7 @@ import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.core.ResolvableType;
 import org.springframework.data.cassandra.core.CassandraOperations;
+import org.springframework.data.couchbase.core.CouchbaseOperations;
 import org.springframework.data.mongodb.core.MongoTemplate;
 import org.springframework.data.redis.connection.RedisConnectionFactory;
 import org.springframework.jdbc.core.JdbcTemplate;
@@ -84,11 +88,12 @@ import org.springframework.mail.javamail.JavaMailSenderImpl;
  * @author Stephane Nicoll
  * @author Phillip Webb
  * @author Tommy Ludwig
+ * @author Eddú Meléndez
  * @since 1.1.0
  */
 @Configuration
 @AutoConfigureBefore({ EndpointAutoConfiguration.class })
-@AutoConfigureAfter({ CassandraAutoConfiguration.class,
+@AutoConfigureAfter({ CouchbaseAutoConfiguration.class, CassandraAutoConfiguration.class,
 		CassandraDataAutoConfiguration.class, DataSourceAutoConfiguration.class,
 		MongoAutoConfiguration.class, MongoDataAutoConfiguration.class,
 		RedisAutoConfiguration.class, RabbitAutoConfiguration.class,
@@ -176,6 +181,24 @@ public class HealthIndicatorAutoConfiguration {
 
 	}
 
+	@Configuration
+	@ConditionalOnClass({ CouchbaseOperations.class, Bucket.class})
+	@ConditionalOnBean(CouchbaseOperations.class)
+	@ConditionalOnEnabledHealthIndicator("couchbase")
+	public static class CouchbaseHealthIndicatorConfiguration extends
+			CompositeHealthIndicatorConfiguration<CouchbaseHealthIndicator, CouchbaseOperations> {
+
+		@Autowired
+		private Map<String, CouchbaseOperations> couchbaseOperations;
+
+		@Bean
+		@ConditionalOnMissingBean(name = "couchbaseHealthIndicator")
+		public HealthIndicator couchbaseHealthIndicator() {
+			return createHealthIndicator(this.couchbaseOperations);
+		}
+
+	}
+
 	@Configuration
 	@ConditionalOnClass(JdbcTemplate.class)
 	@ConditionalOnBean(DataSource.class)

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

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2012-2016 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.actuate.health;
+
+import java.util.List;
+
+import com.couchbase.client.java.util.features.Version;
+
+import org.springframework.data.couchbase.core.CouchbaseOperations;
+import org.springframework.util.Assert;
+
+/**
+ * {@link HealthIndicator} for Couchbase.
+ *
+ * @author Eddú Meléndez
+ * @since 1.4.0
+ */
+public class CouchbaseHealthIndicator extends AbstractHealthIndicator {
+
+	private CouchbaseOperations couchbaseOperations;
+
+	public CouchbaseHealthIndicator(CouchbaseOperations couchbaseOperations) {
+		Assert.notNull(couchbaseOperations, "CouchbaseOperations must not be null");
+		this.couchbaseOperations = couchbaseOperations;
+	}
+
+	@Override
+	protected void doHealthCheck(Health.Builder builder) throws Exception {
+		List<Version> versions = this.couchbaseOperations.getCouchbaseClusterInfo().getAllVersions();
+		builder.up().withDetail("version", versions.get(0).toString());
+	}
+
+}

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

@@ -25,6 +25,7 @@ import org.junit.Test;
 
 import org.springframework.boot.actuate.health.ApplicationHealthIndicator;
 import org.springframework.boot.actuate.health.CassandraHealthIndicator;
+import org.springframework.boot.actuate.health.CouchbaseHealthIndicator;
 import org.springframework.boot.actuate.health.DataSourceHealthIndicator;
 import org.springframework.boot.actuate.health.DiskSpaceHealthIndicator;
 import org.springframework.boot.actuate.health.ElasticsearchHealthIndicator;
@@ -56,6 +57,7 @@ import org.springframework.context.annotation.AnnotationConfigApplicationContext
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.data.cassandra.core.CassandraOperations;
+import org.springframework.data.couchbase.core.CouchbaseOperations;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.mockito.Mockito.mock;
@@ -66,6 +68,7 @@ import static org.mockito.Mockito.mock;
  * @author Christian Dupuis
  * @author Stephane Nicoll
  * @author Andy Wilkinson
+ * @author Eddú Meléndez
  */
 public class HealthIndicatorAutoConfigurationTests {
 
@@ -436,6 +439,19 @@ public class HealthIndicatorAutoConfigurationTests {
 				.isEqualTo(CassandraHealthIndicator.class);
 	}
 
+	@Test
+	public void couchbaseHealthIndicator() throws Exception {
+		EnvironmentTestUtils.addEnvironment(this.context,
+				"management.health.diskspace.enabled:false");
+		this.context.register(CouchbaseConfiguration.class,
+				ManagementServerProperties.class, HealthIndicatorAutoConfiguration.class);
+		this.context.refresh();
+		Map<String, HealthIndicator> beans = this.context
+				.getBeansOfType(HealthIndicator.class);
+		assertThat(beans.size()).isEqualTo(1);
+		assertThat(beans.values().iterator().next().getClass()).isEqualTo(CouchbaseHealthIndicator.class);
+	}
+
 	@Configuration
 	@EnableConfigurationProperties
 	protected static class DataSourceConfig {
@@ -476,4 +492,15 @@ public class HealthIndicatorAutoConfigurationTests {
 
 	}
 
+	@Configuration
+	protected static class CouchbaseConfiguration {
+
+		@Bean
+		public CouchbaseOperations couchbaseOperations() {
+			CouchbaseOperations operations = mock(CouchbaseOperations.class);
+			return operations;
+		}
+
+	}
+
 }