Remove Spring Session Mongo support

Remove auto-configuration support for Spring Session Mongo since it is
no longer supported in Spring Session 2.0.

See gh-9011

Author: vpavic

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

@@ -29,7 +29,6 @@
 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.SessionConfigurationImportSelector;
 import org.springframework.boot.autoconfigure.session.SessionAutoConfiguration.SessionRepositoryValidator;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
@@ -48,6 +47,7 @@
  * @author Tommy Ludwig
  * @author Eddú Meléndez
  * @author Stephane Nicoll
+ * @author Vedran Pavic
  * @since 1.4.0
  */
 @Configuration
@@ -56,8 +56,7 @@
 @ConditionalOnWebApplication(type = Type.SERVLET)
 @EnableConfigurationProperties(SessionProperties.class)
 @AutoConfigureAfter({ DataSourceAutoConfiguration.class, HazelcastAutoConfiguration.class,
-		JdbcTemplateAutoConfiguration.class, MongoAutoConfiguration.class,
-		RedisAutoConfiguration.class })
+		JdbcTemplateAutoConfiguration.class, RedisAutoConfiguration.class })
 @Import({ SessionConfigurationImportSelector.class, SessionRepositoryValidator.class,
 		SessionRepositoryFilterConfiguration.class })
 public class SessionAutoConfiguration {

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

@@ -44,8 +44,6 @@ public class SessionProperties {
 
 	private final Jdbc jdbc = new Jdbc();
 
-	private final Mongo mongo = new Mongo();
-
 	private final Redis redis = new Redis();
 
 	public SessionProperties(ObjectProvider<ServerProperties> serverProperties) {
@@ -78,10 +76,6 @@ public Jdbc getJdbc() {
 		return this.jdbc;
 	}
 
-	public Mongo getMongo() {
-		return this.mongo;
-	}
-
 	public Redis getRedis() {
 		return this.redis;
 	}
@@ -183,23 +177,6 @@ public void setEnabled(boolean enabled) {
 
 	}
 
-	public static class Mongo {
-
-		/**
-		 * Collection name used to store sessions.
-		 */
-		private String collectionName = "sessions";
-
-		public String getCollectionName() {
-			return this.collectionName;
-		}
-
-		public void setCollectionName(String collectionName) {
-			this.collectionName = collectionName;
-		}
-
-	}
-
 	public static class Redis {
 
 		/**

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

@@ -35,7 +35,6 @@ 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.HASH_MAP, HashMapSessionConfiguration.class);

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2016 the original author or authors.
+ * 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.
@@ -21,6 +21,7 @@
  *
  * @author Tommy Ludwig
  * @author Eddú Meléndez
+ * @author Vedran Pavic
  * @since 1.4.0
  */
 public enum StoreType {
@@ -30,11 +31,6 @@ public enum StoreType {
 	 */
 	REDIS,
 
-	/**
-	 * Mongo backed sessions.
-	 */
-	MONGO,
-
 	/**
 	 * JDBC backed sessions.
 	 */

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

@@ -16,7 +16,6 @@
 
 package org.springframework.boot.autoconfigure.session;
 
-import java.util.Arrays;
 import java.util.Collections;
 import java.util.EnumSet;
 
@@ -26,18 +25,13 @@
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
 
-import org.springframework.beans.DirectFieldAccessor;
 import org.springframework.beans.factory.BeanCreationException;
-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.web.servlet.FilterRegistrationBean;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.session.ExpiringSession;
 import org.springframework.session.MapSessionRepository;
 import org.springframework.session.SessionRepository;
-import org.springframework.session.data.mongo.MongoOperationsSessionRepository;
 import org.springframework.session.web.http.SessionRepositoryFilter;
 import org.springframework.test.util.ReflectionTestUtils;
 
@@ -49,6 +43,7 @@
  * @author Dave Syer
  * @author Eddú Meléndez
  * @author Stephane Nicoll
+ * @author Vedran Pavic
  */
 public class SessionAutoConfigurationTests extends AbstractSessionAutoConfigurationTests {
 
@@ -72,7 +67,7 @@ public void autoConfigurationDisabledIfStoreTypeSetToNone() {
 	@Test
 	public void backOffIfSessionRepositoryIsPresent() {
 		load(Collections.<Class<?>>singletonList(SessionRepositoryConfiguration.class),
-				"spring.session.store-type=mongo");
+				"spring.session.store-type=redis");
 		MapSessionRepository repository = validateSessionRepository(
 				MapSessionRepository.class);
 		assertThat(this.context.getBean("mySessionRepository")).isSameAs(repository);
@@ -102,26 +97,6 @@ public void springSessionTimeoutIsNotAValidProperty() {
 		assertThat(getSessionTimeout(repository)).isNull();
 	}
 
-	@Test
-	public void mongoSessionStore() {
-		load(Arrays.asList(EmbeddedMongoAutoConfiguration.class,
-				MongoAutoConfiguration.class, MongoDataAutoConfiguration.class),
-				"spring.session.store-type=mongo");
-		validateSessionRepository(MongoOperationsSessionRepository.class);
-	}
-
-	@Test
-	public void mongoSessionStoreWithCustomizations() {
-		load(Arrays.asList(EmbeddedMongoAutoConfiguration.class,
-				MongoAutoConfiguration.class, MongoDataAutoConfiguration.class),
-				"spring.session.store-type=mongo",
-				"spring.session.mongo.collection-name=foobar");
-		MongoOperationsSessionRepository repository = validateSessionRepository(
-				MongoOperationsSessionRepository.class);
-		assertThat(new DirectFieldAccessor(repository).getPropertyValue("collectionName"))
-				.isEqualTo("foobar");
-	}
-
 	@Test
 	public void validationFailsIfSessionRepositoryIsNotConfigured() {
 		this.thrown.expect(BeanCreationException.class);

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

@@ -2246,11 +2246,6 @@
 				<artifactId>spring-session-data-gemfire</artifactId>
 				<version>${spring-session.version}</version>
 			</dependency>
-			<dependency>
-				<groupId>org.springframework.session</groupId>
-				<artifactId>spring-session-data-mongo</artifactId>
-				<version>${spring-session.version}</version>
-			</dependency>
 			<dependency>
 				<groupId>org.springframework.session</groupId>
 				<artifactId>spring-session-hazelcast</artifactId>

spring-boot-dependencies/pom.xml

@@ -414,7 +414,6 @@ content into your application; rather pick only the properties that you need.
 	spring.session.jdbc.initializer.enabled= # Create the required session tables on startup if necessary. Enabled automatically if the default table name is set or a custom schema is configured.
 	spring.session.jdbc.schema=classpath:org/springframework/session/jdbc/schema-@@platform@@.sql # Path to the SQL file to use to initialize the database schema.
 	spring.session.jdbc.table-name=SPRING_SESSION # Name of database table used to store sessions.
-	spring.session.mongo.collection-name=sessions # Collection name used to store sessions.
 	spring.session.redis.flush-mode=on-save # Sessions flush mode.
 	spring.session.redis.namespace= # Namespace for keys used to store sessions.
 	spring.session.store-type= # Session store type.

spring-boot-docs/src/main/asciidoc/appendix-application-properties.adoc

@@ -5138,7 +5138,6 @@ classes for more details.
 Spring Boot provides Spring Session auto-configuration for a wide range of stores:
 
 * JDBC
-* MongoDB
 * Redis
 * Hazelcast
 * HashMap