Add Point reading from coordinate arrays.

Closes #4997

Signed-off-by: dragonfsky <dragonfsky@gmail.com>

Author: DragonFSKY

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

@@ -60,6 +60,7 @@
  * @author Oliver Gierke
  * @author Christoph Strobl
  * @author Thiago Diniz da Silveira
+ * @author dragonfsky
  * @since 1.5
  */
 @SuppressWarnings("ConstantConditions")
@@ -105,6 +106,7 @@ public static Collection<? extends Object> getConvertersToRegister() {
 				, DocumentToCircleConverter.INSTANCE //
 				, DocumentToSphereConverter.INSTANCE //
 				, DocumentToPointConverter.INSTANCE //
+				, ListToPointConverter.INSTANCE //
 				, PointToDocumentConverter.INSTANCE //
 				, GeoCommandToDocumentConverter.INSTANCE //
 				, GeoJsonToDocumentConverter.INSTANCE //
@@ -149,6 +151,31 @@ public Point convert(Document source) {
 		}
 	}
 
+	/**
+	 * Converts a {@link List} of coordinates into a {@link Point}.
+	 *
+	 * @author dragonfsky
+	 * @since 5.1
+	 */
+	@ReadingConverter
+	enum ListToPointConverter implements Converter<List<Number>, @Nullable Point> {
+
+		INSTANCE;
+
+		@Override
+		@SuppressWarnings("NullAway")
+		public Point convert(List<Number> source) {
+
+			if (ObjectUtils.isEmpty(source)) {
+				return null;
+			}
+
+			Assert.isTrue(source.size() == 2, "Source must contain 2 elements");
+
+			return new Point(toPrimitiveDoubleValue(source.get(0)), toPrimitiveDoubleValue(source.get(1)));
+		}
+	}
+
 	/**
 	 * Converts a {@link Point} into a {@link List} of {@link Double}s.
 	 *

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/core/convert/GeoConvertersUnitTests.java

@@ -39,6 +39,7 @@
  * @author Thomas Darimont
  * @author Oliver Gierke
  * @author Christoph Strobl
+ * @author dragonfsky
  * @since 1.5
  */
 public class GeoConvertersUnitTests {
@@ -152,6 +153,13 @@ public void convertsPointCorrectlyWhenUsingNonDoubleForCoordinates() {
 				.isEqualTo(new Point(1, 2));
 	}
 
+	@Test // GH-4997
+	public void convertsCoordinateListToPointCorrectly() {
+
+		assertThat(ListToPointConverter.INSTANCE.convert(Arrays.asList(-73.99171, 40.738868)))
+				.isEqualTo(new Point(-73.99171, 40.738868));
+	}
+
 	@Test // DATAMONGO-1607
 	public void convertsCircleCorrectlyWhenUsingNonDoubleForCoordinates() {
 

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/core/convert/MappingMongoConverterUnitTests.java

@@ -126,6 +126,7 @@
  * @author Roman Puchkovskiy
  * @author Heesu Jung
  * @author Julia Lee
+ * @author dragonfsky
  */
 @ExtendWith(MockitoExtension.class)
 class MappingMongoConverterUnitTests {
@@ -1552,6 +1553,16 @@ void shouldReadEntityWithGeoBoxCorrectly() {
 		assertThat(result.box).isEqualTo(object.box);
 	}
 
+	@Test // GH-4997
+	void shouldReadEntityWithGeoPointFromArrayCoordinates() {
+
+		org.bson.Document document = new org.bson.Document("point", Arrays.asList(-73.99171, 40.738868));
+
+		ClassWithGeoPoint result = converter.read(ClassWithGeoPoint.class, document);
+
+		assertThat(result.point).isEqualTo(new Point(-73.99171, 40.738868));
+	}
+
 	@Test // DATAMONGO-858
 	void shouldWriteEntityWithGeoPolygonCorrectly() {
 
@@ -4059,6 +4070,11 @@ class ClassWithGeoBox {
 		Box box;
 	}
 
+	class ClassWithGeoPoint {
+
+		Point point;
+	}
+
 	class ClassWithGeoCircle {
 
 		Circle circle;