Add auto-configuration for separate Spring Session Data MongoDB module

Closes gh-9552

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/session/MongoSessionConfiguration.java

@@ -0,0 +1,58 @@
+/*
+ * Copyright 2012-2017 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.session;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.context.annotation.Conditional;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.data.mongodb.core.MongoOperations;
+import org.springframework.session.SessionRepository;
+import org.springframework.session.data.mongo.config.annotation.web.http.MongoHttpSessionConfiguration;
+
+/**
+ * Mongo-backed session configuration.
+ *
+ * @author Eddú Meléndez
+ * @author Stephane Nicoll
+ */
+@Configuration
+@ConditionalOnMissingBean(SessionRepository.class)
+@ConditionalOnBean(MongoOperations.class)
+@Conditional(SessionCondition.class)
+@EnableConfigurationProperties(MongoSessionProperties.class)
+class MongoSessionConfiguration {
+
+	@Configuration
+	public static class SpringBootMongoHttpSessionConfiguration
+			extends MongoHttpSessionConfiguration {
+
+		@Autowired
+		public void customize(SessionProperties sessionProperties,
+				MongoSessionProperties mongoSessionProperties) {
+			Integer timeout = sessionProperties.getTimeout();
+			if (timeout != null) {
+				setMaxInactiveIntervalInSeconds(timeout);
+			}
+			setCollectionName(mongoSessionProperties.getCollectionName());
+		}
+
+	}
+
+}

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/session/MongoSessionProperties.java

@@ -0,0 +1,43 @@
+/*
+ * Copyright 2012-2017 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.session;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+
+/**
+ * Configuration properties for Mongo-backed Spring Session.
+ *
+ * @author Andy Wilkinson
+ * @since 2.0.0
+ */
+@ConfigurationProperties(prefix = "spring.session.mongo")
+public class MongoSessionProperties {
+
+	/**
+	 * Collection name used to store sessions.
+	 */
+	private String collectionName = "sessions";
+
+	public String getCollectionName() {
+		return this.collectionName;
+	}
+
+	public void setCollectionName(String collectionName) {
+		this.collectionName = collectionName;
+	}
+
+}

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/session/SessionAutoConfiguration.java

@@ -32,6 +32,7 @@ import org.springframework.boot.autoconfigure.data.redis.RedisAutoConfiguration;
 import org.springframework.boot.autoconfigure.hazelcast.HazelcastAutoConfiguration;
 import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
 import org.springframework.boot.autoconfigure.jdbc.JdbcTemplateAutoConfiguration;
+import org.springframework.boot.autoconfigure.mongo.MongoAutoConfiguration;
 import org.springframework.boot.autoconfigure.session.SessionAutoConfiguration.SessionRepositoryConfiguration;
 import org.springframework.boot.autoconfigure.session.SessionAutoConfiguration.SessionRepositoryValidator;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
@@ -58,7 +59,8 @@ import org.springframework.session.SessionRepository;
 @ConditionalOnWebApplication(type = Type.SERVLET)
 @EnableConfigurationProperties(SessionProperties.class)
 @AutoConfigureAfter({ DataSourceAutoConfiguration.class, HazelcastAutoConfiguration.class,
-		JdbcTemplateAutoConfiguration.class, RedisAutoConfiguration.class })
+		JdbcTemplateAutoConfiguration.class, MongoAutoConfiguration.class,
+		RedisAutoConfiguration.class })
 @Import({ SessionRepositoryConfiguration.class, SessionRepositoryValidator.class,
 		SessionRepositoryFilterConfiguration.class })
 public class SessionAutoConfiguration {

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/session/SessionStoreMappings.java

@@ -35,6 +35,7 @@ final class SessionStoreMappings {
 	static {
 		Map<StoreType, Class<?>> mappings = new HashMap<>();
 		mappings.put(StoreType.REDIS, RedisSessionConfiguration.class);
+		mappings.put(StoreType.MONGO, MongoSessionConfiguration.class);
 		mappings.put(StoreType.JDBC, JdbcSessionConfiguration.class);
 		mappings.put(StoreType.HAZELCAST, HazelcastSessionConfiguration.class);
 		mappings.put(StoreType.NONE, NoOpSessionConfiguration.class);

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/session/StoreType.java

@@ -31,6 +31,11 @@ public enum StoreType {
 	 */
 	REDIS,
 
+	/**
+	 * Mongo backed sessions.
+	 */
+	MONGO,
+
 	/**
 	 * JDBC backed sessions.
 	 */

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/session/SessionAutoConfigurationJdbcTests.java

@@ -32,6 +32,7 @@ import org.springframework.boot.test.context.runner.WebApplicationContextRunner;
 import org.springframework.boot.web.servlet.FilterRegistrationBean;
 import org.springframework.jdbc.BadSqlGrammarException;
 import org.springframework.jdbc.core.JdbcOperations;
+import org.springframework.session.data.mongo.MongoOperationsSessionRepository;
 import org.springframework.session.data.redis.RedisOperationsSessionRepository;
 import org.springframework.session.hazelcast.HazelcastSessionRepository;
 import org.springframework.session.jdbc.JdbcOperationsSessionRepository;
@@ -69,6 +70,7 @@ public class SessionAutoConfigurationJdbcTests
 		this.contextRunner
 				.withClassLoader(
 						new HideClassesClassLoader(HazelcastSessionRepository.class,
+								MongoOperationsSessionRepository.class,
 								RedisOperationsSessionRepository.class))
 				.withConfiguration(
 						AutoConfigurations.of(JdbcTemplateAutoConfiguration.class))

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/session/SessionAutoConfigurationMongoTests.java

@@ -0,0 +1,91 @@
+/*
+ * Copyright 2012-2017 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.session;
+
+import org.junit.Test;
+
+import org.springframework.beans.DirectFieldAccessor;
+import org.springframework.boot.autoconfigure.AutoConfigurations;
+import org.springframework.boot.autoconfigure.data.mongo.MongoDataAutoConfiguration;
+import org.springframework.boot.autoconfigure.mongo.MongoAutoConfiguration;
+import org.springframework.boot.autoconfigure.mongo.embedded.EmbeddedMongoAutoConfiguration;
+import org.springframework.boot.test.context.HideClassesClassLoader;
+import org.springframework.boot.test.context.assertj.AssertableWebApplicationContext;
+import org.springframework.boot.test.context.runner.ContextConsumer;
+import org.springframework.boot.test.context.runner.WebApplicationContextRunner;
+import org.springframework.session.data.mongo.MongoOperationsSessionRepository;
+import org.springframework.session.data.redis.RedisOperationsSessionRepository;
+import org.springframework.session.hazelcast.HazelcastSessionRepository;
+import org.springframework.session.jdbc.JdbcOperationsSessionRepository;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Mongo-specific tests for {@link SessionAutoConfiguration}.
+ *
+ * @author Andy Wilkinson
+ */
+public class SessionAutoConfigurationMongoTests
+		extends AbstractSessionAutoConfigurationTests {
+
+	private final WebApplicationContextRunner contextRunner = new WebApplicationContextRunner()
+			.withConfiguration(AutoConfigurations.of(SessionAutoConfiguration.class));
+
+	@Test
+	public void defaultConfig() {
+		this.contextRunner.withPropertyValues("spring.session.store-type=mongo")
+				.withConfiguration(AutoConfigurations.of(
+						EmbeddedMongoAutoConfiguration.class,
+						MongoAutoConfiguration.class, MongoDataAutoConfiguration.class))
+				.run(validateSpringSessionUsesMongo("sessions"));
+	}
+
+	@Test
+	public void defaultConfigWithUniqueStoreImplementation() {
+		this.contextRunner
+				.withClassLoader(
+						new HideClassesClassLoader(HazelcastSessionRepository.class,
+								JdbcOperationsSessionRepository.class,
+								RedisOperationsSessionRepository.class))
+				.withConfiguration(AutoConfigurations.of(
+						EmbeddedMongoAutoConfiguration.class,
+						MongoAutoConfiguration.class, MongoDataAutoConfiguration.class))
+				.run(validateSpringSessionUsesMongo("sessions"));
+	}
+
+	@Test
+	public void mongoSessionStoreWithCustomizations() {
+		this.contextRunner
+				.withConfiguration(AutoConfigurations.of(
+						EmbeddedMongoAutoConfiguration.class,
+						MongoAutoConfiguration.class, MongoDataAutoConfiguration.class))
+				.withPropertyValues("spring.session.store-type=mongo",
+						"spring.session.mongo.collection-name=foo")
+				.run(validateSpringSessionUsesMongo("foo"));
+	}
+
+	private ContextConsumer<AssertableWebApplicationContext> validateSpringSessionUsesMongo(
+			String collectionName) {
+		return (context) -> {
+			MongoOperationsSessionRepository repository = validateSessionRepository(
+					context, MongoOperationsSessionRepository.class);
+			assertThat(new DirectFieldAccessor(repository)
+					.getPropertyValue("collectionName")).isEqualTo(collectionName);
+		};
+	}
+
+}

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/session/SessionAutoConfigurationRedisTests.java

@@ -27,6 +27,7 @@ import org.springframework.boot.test.context.assertj.AssertableWebApplicationCon
 import org.springframework.boot.test.context.runner.ContextConsumer;
 import org.springframework.boot.test.context.runner.WebApplicationContextRunner;
 import org.springframework.boot.testsupport.rule.RedisTestServer;
+import org.springframework.session.data.mongo.MongoOperationsSessionRepository;
 import org.springframework.session.data.redis.RedisFlushMode;
 import org.springframework.session.data.redis.RedisOperationsSessionRepository;
 import org.springframework.session.hazelcast.HazelcastSessionRepository;
@@ -61,7 +62,8 @@ public class SessionAutoConfigurationRedisTests
 		this.contextRunner
 				.withClassLoader(
 						new HideClassesClassLoader(HazelcastSessionRepository.class,
-								JdbcOperationsSessionRepository.class))
+								JdbcOperationsSessionRepository.class,
+								MongoOperationsSessionRepository.class))
 				.withConfiguration(AutoConfigurations.of(RedisAutoConfiguration.class))
 				.run(validateSpringSessionUsesRedis("spring:session:event:created:",
 						RedisFlushMode.ON_SAVE));