Adding GeoDistanceOrder's direction in request.

Original Pull Request #2602
Closes #2601

(cherry picked from commit 8a164b1)

Polishing

(cherry picked from commit b7570ff)

add implementation for old client

(cherry picked from commit d43b44b)

# Conflicts:
#	src/main/java/org/springframework/data/elasticsearch/client/elc/RequestConverter.java
#	src/main/java/org/springframework/data/elasticsearch/client/erhlc/RequestFactory.java

Author: beyond-seunghyun

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

@@ -1373,9 +1373,10 @@ private SortOptions getSortOptions(Sort.Order order, @Nullable ElasticsearchPers
 				return SortOptions.of(so -> so //
 						.geoDistance(gd -> gd //
 								.field(fieldName) //
-								.location(loc -> loc.latlon(QueryBuilders.latLon(geoDistanceOrder.getGeoPoint())))//
+								.location(loc -> loc.latlon(QueryBuilders.latLon(geoDistanceOrder.getGeoPoint()))) //
 								.distanceType(TypeUtils.geoDistanceType(geoDistanceOrder.getDistanceType()))
 								.mode(TypeUtils.sortMode(finalMode)) //
+								.order(TypeUtils.sortOrder(geoDistanceOrder.getDirection())) //
 								.unit(TypeUtils.distanceUnit(geoDistanceOrder.getUnit())) //
 								.ignoreUnmapped(geoDistanceOrder.getIgnoreUnmapped())));
 			} else {

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

@@ -27,6 +27,7 @@
 
 import java.time.Duration;
 
+import org.springframework.data.domain.Sort;
 import org.springframework.data.elasticsearch.core.RefreshPolicy;
 import org.springframework.data.elasticsearch.core.query.GeoDistanceOrder;
 import org.springframework.data.elasticsearch.core.query.IndexQuery;
@@ -136,6 +137,20 @@ static GeoDistanceType geoDistanceType(GeoDistanceOrder.DistanceType distanceTyp
 
 	}
 
+	@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

@@ -963,6 +963,8 @@ private SortBuilder<?> getSortBuilder(Sort.Order order, @Nullable ElasticsearchP
 					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 @@ void shouldUseGeoSortParameter() {
 		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);