Polishing.

Reformat code. Reuse PersistentEntity for mapping instead of resolving TypeInformation from Class.

Original pull request: #4892
See: #4860

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/ExecutableFindOperationSupport.java

@@ -20,9 +20,10 @@ import java.util.Optional;
 import java.util.stream.Stream;
 
 import org.bson.Document;
+
 import org.springframework.dao.IncorrectResultSizeDataAccessException;
-import org.springframework.data.domain.Window;
 import org.springframework.data.domain.ScrollPosition;
+import org.springframework.data.domain.Window;
 import org.springframework.data.mongodb.core.query.NearQuery;
 import org.springframework.data.mongodb.core.query.Query;
 import org.springframework.data.mongodb.core.query.SerializationUtils;
@@ -228,11 +229,13 @@ class ExecutableFindOperationSupport implements ExecutableFindOperation {
 		}
 
 		@Override
+		@Nullable
 		public ReadPreference getReadPreference() {
 			return delegate.getReadPreference();
 		}
 
 		@Override
+		@Nullable
 		public Document getSortObject() {
 			return delegate instanceof SortingQueryCursorPreparer sqcp ? sqcp.getSortObject() : null;
 		}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoTemplate.java

@@ -2643,7 +2643,9 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware,
 
 		if (LOGGER.isDebugEnabled()) {
 
-			Document mappedSort = preparer instanceof SortingQueryCursorPreparer sqcp ?  getMappedSortObject(sqcp.getSortObject(), sourceClass) : null;
+			Document mappedSort = preparer instanceof SortingQueryCursorPreparer sqcp
+					? getMappedSortObject(sqcp.getSortObject(), entity)
+					: null;
 			LOGGER.debug(String.format("find using query: %s fields: %s sort: %s for class: %s in collection: %s",
 					serializeToJsonSafely(mappedQuery), mappedFields, serializeToJsonSafely(mappedSort), sourceClass,
 					collectionName));
@@ -3011,7 +3013,7 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware,
 	}
 
 	@Nullable
-	private Document getMappedSortObject(Document sortObject, MongoPersistentEntity<?> entity) {
+	private Document getMappedSortObject(Document sortObject, @Nullable MongoPersistentEntity<?> entity) {
 
 		if (ObjectUtils.isEmpty(sortObject)) {
 			return null;
@@ -3373,11 +3375,8 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware,
 	class QueryCursorPreparer implements SortingQueryCursorPreparer {
 
 		private final Query query;
-
 		private final Document sortObject;
-
 		private final int limit;
-
 		private final long skip;
 		private final @Nullable Class<?> type;
 

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/SortingQueryCursorPreparer.java

@@ -19,10 +19,14 @@ import org.bson.Document;
 import org.springframework.lang.Nullable;
 
 /**
+ * {@link CursorPreparer} that exposes its {@link Document sort document}.
+ *
  * @author Christoph Strobl
+ * @since 4.4.3
  */
 interface SortingQueryCursorPreparer extends CursorPreparer {
 
-    @Nullable
-    Document getSortObject();
+	@Nullable
+	Document getSortObject();
+
 }