Issue #690/#712 best effort resample_spatial on cube without metadata

Author: soxofaan

openeo/metadata.py

@@ -422,7 +422,7 @@ def drop_dimension(self, name: str = None) -> CubeMetadata:
 
     def resample_spatial(
         self,
-        resolution: Union[int, float, Tuple[float, float], Tuple[int, int]] = 0.0,
+        resolution: Union[float, Tuple[float, float], List[float]] = 0.0,
         projection: Union[int, str, None] = None,
     ) -> CubeMetadata:
         resolution = normalize_resample_resolution(resolution)

openeo/rest/datacube.py

@@ -40,6 +40,7 @@
     Band,
     BandDimension,
     CollectionMetadata,
+    CubeMetadata,
     SpatialDimension,
     TemporalDimension,
     metadata_from_stac,
@@ -750,14 +751,12 @@ def band(self, band: Union[str, int]) -> DataCube:
     @openeo_process
     def resample_spatial(
         self,
-        resolution: Union[int, float, Tuple[float, float], Tuple[int, int]] = 0.0,
+        resolution: Union[float, Tuple[float, float], List[float]] = 0.0,
         projection: Union[int, str, None] = None,
         method: str = "near",
         align: str = "upper-left",
     ) -> DataCube:
-        metadata = (
-            self.metadata.resample_spatial(resolution=resolution, projection=projection) if self.metadata else None
-        )
+        metadata = (self.metadata or CubeMetadata()).resample_spatial(resolution=resolution, projection=projection)
         return self.process(
             process_id="resample_spatial",
             arguments={

tests/rest/datacube/test_datacube.py

@@ -744,6 +744,26 @@ def test_resample_spatial(s2cube):
     ]
 
 
+def test_resample_spatial_no_metadata(s2cube_without_metadata):
+    cube = s2cube_without_metadata.resample_spatial(resolution=(3, 5), projection=4578)
+    assert get_download_graph(cube, drop_load_collection=True, drop_save_result=True) == {
+        "resamplespatial1": {
+            "process_id": "resample_spatial",
+            "arguments": {
+                "data": {"from_node": "loadcollection1"},
+                "resolution": [3, 5],
+                "projection": 4578,
+                "method": "near",
+                "align": "upper-left",
+            },
+        }
+    }
+    assert cube.metadata.spatial_dimensions == [
+        SpatialDimension(name="x", extent=[None, None], crs=4578, step=3.0),
+        SpatialDimension(name="y", extent=[None, None], crs=4578, step=5.0),
+    ]
+
+
 def test_resample_cube_spatial(s2cube):
     cube1 = s2cube.resample_spatial(resolution=[2.0, 3.0], projection=4578)
     cube2 = s2cube.resample_spatial(resolution=10, projection=32631)