Add support for customizing session repository before initialization

This commit adds support for customizing session repository implementations (both SessionRepository and ReactiveSessionRepository) before initialization by introducing SessionRepositoryCustomizer and ReactiveSessionRepositoryCustomizer strategies.

Resolves: #1499

spring-session-data-redis/src/test/java/org/springframework/session/data/redis/config/annotation/web/http/RedisHttpSessionConfigurationTests.java

@@ -29,6 +29,7 @@ import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Primary;
 import org.springframework.context.support.PropertySourcesPlaceholderConfigurer;
+import org.springframework.core.annotation.Order;
 import org.springframework.data.redis.connection.RedisConnection;
 import org.springframework.data.redis.connection.RedisConnectionFactory;
 import org.springframework.data.redis.core.RedisOperations;
@@ -36,6 +37,7 @@ import org.springframework.data.redis.listener.RedisMessageListenerContainer;
 import org.springframework.mock.env.MockEnvironment;
 import org.springframework.session.FlushMode;
 import org.springframework.session.SaveMode;
+import org.springframework.session.config.SessionRepositoryCustomizer;
 import org.springframework.session.data.redis.RedisFlushMode;
 import org.springframework.session.data.redis.RedisOperationsSessionRepository;
 import org.springframework.session.data.redis.config.annotation.SpringSessionRedisConnectionFactory;
@@ -57,6 +59,8 @@ import static org.mockito.Mockito.mock;
 @SuppressWarnings("deprecation")
 class RedisHttpSessionConfigurationTests {
 
+	private static final int MAX_INACTIVE_INTERVAL_IN_SECONDS = 600;
+
 	private static final String CLEANUP_CRON_EXPRESSION = "0 0 * * * *";
 
 	private AnnotationConfigApplicationContext context;
@@ -238,6 +242,15 @@ class RedisHttpSessionConfigurationTests {
 		assertThat(beans).containsKeys("springSessionRedisMessageListenerContainer", "redisMessageListenerContainer");
 	}
 
+	@Test
+	void sessionRepositoryCustomizer() {
+		registerAndRefresh(RedisConfig.class, SessionRepositoryCustomizerConfiguration.class);
+		RedisOperationsSessionRepository sessionRepository = this.context
+				.getBean(RedisOperationsSessionRepository.class);
+		assertThat(sessionRepository).hasFieldOrPropertyWithValue("defaultMaxInactiveInterval",
+				MAX_INACTIVE_INTERVAL_IN_SECONDS);
+	}
+
 	private void registerAndRefresh(Class<?>... annotatedClasses) {
 		this.context.register(annotatedClasses);
 		this.context.refresh();
@@ -416,4 +429,22 @@ class RedisHttpSessionConfigurationTests {
 
 	}
 
+	@EnableRedisHttpSession
+	static class SessionRepositoryCustomizerConfiguration {
+
+		@Bean
+		@Order(0)
+		public SessionRepositoryCustomizer<RedisOperationsSessionRepository> sessionRepositoryCustomizerOne() {
+			return (sessionRepository) -> sessionRepository.setDefaultMaxInactiveInterval(0);
+		}
+
+		@Bean
+		@Order(1)
+		public SessionRepositoryCustomizer<RedisOperationsSessionRepository> sessionRepositoryCustomizerTwo() {
+			return (sessionRepository) -> sessionRepository
+					.setDefaultMaxInactiveInterval(MAX_INACTIVE_INTERVAL_IN_SECONDS);
+		}
+
+	}
+
 }

spring-session-data-redis/src/test/java/org/springframework/session/data/redis/config/annotation/web/server/RedisWebSessionConfigurationTests.java

@@ -25,11 +25,13 @@ import org.springframework.context.annotation.AnnotationConfigApplicationContext
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Primary;
+import org.springframework.core.annotation.Order;
 import org.springframework.data.redis.connection.ReactiveRedisConnectionFactory;
 import org.springframework.data.redis.core.ReactiveRedisOperations;
 import org.springframework.data.redis.serializer.RedisSerializationContext;
 import org.springframework.data.redis.serializer.RedisSerializer;
 import org.springframework.session.SaveMode;
+import org.springframework.session.config.ReactiveSessionRepositoryCustomizer;
 import org.springframework.session.data.redis.ReactiveRedisOperationsSessionRepository;
 import org.springframework.session.data.redis.config.annotation.SpringSessionRedisConnectionFactory;
 import org.springframework.session.data.redis.config.annotation.SpringSessionRedisOperations;
@@ -222,6 +224,15 @@ class RedisWebSessionConfigurationTests {
 				"serializer")).isEqualTo(redisSerializer);
 	}
 
+	@Test
+	void sessionRepositoryCustomizer() {
+		registerAndRefresh(RedisConfig.class, SessionRepositoryCustomizerConfiguration.class);
+		ReactiveRedisOperationsSessionRepository sessionRepository = this.context
+				.getBean(ReactiveRedisOperationsSessionRepository.class);
+		assertThat(sessionRepository).hasFieldOrPropertyWithValue("defaultMaxInactiveInterval",
+				MAX_INACTIVE_INTERVAL_IN_SECONDS);
+	}
+
 	private void registerAndRefresh(Class<?>... annotatedClasses) {
 		this.context.register(annotatedClasses);
 		this.context.refresh();
@@ -348,4 +359,22 @@ class RedisWebSessionConfigurationTests {
 
 	}
 
+	@EnableRedisWebSession
+	static class SessionRepositoryCustomizerConfiguration {
+
+		@Bean
+		@Order(0)
+		public ReactiveSessionRepositoryCustomizer<ReactiveRedisOperationsSessionRepository> sessionRepositoryCustomizerOne() {
+			return (sessionRepository) -> sessionRepository.setDefaultMaxInactiveInterval(0);
+		}
+
+		@Bean
+		@Order(1)
+		public ReactiveSessionRepositoryCustomizer<ReactiveRedisOperationsSessionRepository> sessionRepositoryCustomizerTwo() {
+			return (sessionRepository) -> sessionRepository
+					.setDefaultMaxInactiveInterval(MAX_INACTIVE_INTERVAL_IN_SECONDS);
+		}
+
+	}
+
 }