Adding GeoDistanceOrder's direction in request.

Original Pull Request #2602
Closes #2601

(cherry picked from commit 8a164b103937d6911f388ecd106996578119a599)

Polishing

(cherry picked from commit b7570ffa957254d114e161cf73e173135fb3ee54)

add implementation for old client

src/main/java/org/springframework/data/elasticsearch/client/elc/RequestConverter.java

@@ -1490,8 +1490,9 @@ class RequestConverter {
 				return SortOptions.of(so -> so //
 						.geoDistance(gd -> gd //
 								.field(fieldName) //
-								.location(loc -> loc.latlon(Queries.latLon(geoDistanceOrder.getGeoPoint())))//
+								.location(loc -> loc.latlon(Queries.latLon(geoDistanceOrder.getGeoPoint()))) //
 								.distanceType(geoDistanceType(geoDistanceOrder.getDistanceType())).mode(sortMode(finalMode)) //
+								.order(sortOrder(geoDistanceOrder.getDirection())) //
 								.unit(distanceUnit(geoDistanceOrder.getUnit())) //
 								.ignoreUnmapped(geoDistanceOrder.getIgnoreUnmapped())));
 			} else {

src/main/java/org/springframework/data/elasticsearch/client/elc/TypeUtils.java

@@ -28,6 +28,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.stream.Collectors;
 
+import org.springframework.data.domain.Sort;
 import org.springframework.data.elasticsearch.core.RefreshPolicy;
 import org.springframework.data.elasticsearch.core.document.Document;
 import org.springframework.data.elasticsearch.core.query.*;
@@ -165,6 +166,20 @@ final class TypeUtils {
 
 	}
 
+	@Nullable
+	static SortOrder sortOrder(@Nullable Sort.Direction direction) {
+
+		if (direction == null) {
+			return null;
+		}
+
+		return switch (direction) {
+			case ASC -> SortOrder.Asc;
+			case DESC -> SortOrder.Desc;
+		};
+
+	}
+
 	@Nullable
 	static HighlighterFragmenter highlighterFragmenter(@Nullable String value) {
 

src/main/java/org/springframework/data/elasticsearch/client/erhlc/RequestFactory.java

@@ -348,8 +348,8 @@ class RequestFactory {
 					for (String aliasName : parametersAliases) {
 						Alias alias = new Alias(aliasName);
 
-							//noinspection DuplicatedCode
+						// noinspection DuplicatedCode
-							if (parameters.getRouting() != null) {
+						if (parameters.getRouting() != null) {
 							alias.routing(parameters.getRouting());
 						}
 
@@ -526,7 +526,8 @@ class RequestFactory {
 	// endregion
 
 	// region delete
-	public DeleteByQueryRequest deleteByQueryRequest(Query query, @Nullable String routing,  Class<?> clazz, IndexCoordinates index) {
+	public DeleteByQueryRequest deleteByQueryRequest(Query query, @Nullable String routing, Class<?> clazz,
+			IndexCoordinates index) {
 		SearchRequest searchRequest = searchRequest(query, routing, clazz, index);
 		DeleteByQueryRequest deleteByQueryRequest = new DeleteByQueryRequest(index.getIndexNames()) //
 				.setQuery(searchRequest.source().query()) //
@@ -754,10 +755,11 @@ class RequestFactory {
 		return searchRequest;
 	}
 
-	public SearchRequest searchRequest(Query query, @Nullable String routing, @Nullable Class<?> clazz, IndexCoordinates index) {
+	public SearchRequest searchRequest(Query query, @Nullable String routing, @Nullable Class<?> clazz,
+			IndexCoordinates index) {
 
 		elasticsearchConverter.updateQuery(query, clazz);
-		SearchRequest searchRequest = prepareSearchRequest(query, routing,clazz, index);
+		SearchRequest searchRequest = prepareSearchRequest(query, routing, clazz, index);
 		QueryBuilder elasticsearchQuery = getQuery(query);
 		QueryBuilder elasticsearchFilter = getFilter(query);
 
@@ -771,7 +773,8 @@ class RequestFactory {
 
 	}
 
-	private SearchRequest prepareSearchRequest(Query query, @Nullable String routing, @Nullable Class<?> clazz, IndexCoordinates indexCoordinates) {
+	private SearchRequest prepareSearchRequest(Query query, @Nullable String routing, @Nullable Class<?> clazz,
+			IndexCoordinates indexCoordinates) {
 
 		String[] indexNames = indexCoordinates.getIndexNames();
 		Assert.notNull(indexNames, "No index defined for Query");
@@ -968,6 +971,8 @@ class RequestFactory {
 					sort.ignoreUnmapped(geoDistanceOrder.getIgnoreUnmapped());
 				}
 
+				sort.order(order.isAscending() ? SortOrder.ASC : SortOrder.DESC);
+
 				return sort;
 			} else {
 				FieldSortBuilder sort = SortBuilders //

src/test/java/org/springframework/data/elasticsearch/repositories/custommethod/CustomMethodRepositoryIntegrationTests.java

@@ -1590,6 +1590,41 @@ public abstract class CustomMethodRepositoryIntegrationTests implements NewElast
 		assertThat(searchHits.getSearchHit(2).getId()).isEqualTo("oslo");
 	}
 
+	@Test // #2601
+	void shouldUseGeoSortReverseParameter() {
+		GeoPoint munich = new GeoPoint(48.137154, 11.5761247);
+		GeoPoint berlin = new GeoPoint(52.520008, 13.404954);
+		GeoPoint vienna = new GeoPoint(48.20849, 16.37208);
+		GeoPoint oslo = new GeoPoint(59.9127, 10.7461);
+
+		List<SampleEntity> entities = new ArrayList<>();
+
+		SampleEntity entity1 = new SampleEntity();
+		entity1.setId("berlin");
+		entity1.setLocation(berlin);
+		entities.add(entity1);
+
+		SampleEntity entity2 = new SampleEntity();
+		entity2.setId("vienna");
+		entity2.setLocation(vienna);
+		entities.add(entity2);
+
+		SampleEntity entity3 = new SampleEntity();
+		entity3.setId("oslo");
+		entity3.setLocation(oslo);
+		entities.add(entity3);
+
+		repository.saveAll(entities);
+
+		SearchHits<SampleEntity> searchHits = repository
+				.searchBy(Sort.by(new GeoDistanceOrder("location", munich).with(Sort.Direction.DESC)));
+
+		assertThat(searchHits.getTotalHits()).isEqualTo(3);
+		assertThat(searchHits.getSearchHit(0).getId()).isEqualTo("oslo");
+		assertThat(searchHits.getSearchHit(1).getId()).isEqualTo("berlin");
+		assertThat(searchHits.getSearchHit(2).getId()).isEqualTo("vienna");
+	}
+
 	@Test // DATAES-749
 	void shouldReturnSearchPage() {
 		List<SampleEntity> entities = createSampleEntities("abc", 20);