Update get_metadata method

xcube_clms/clms.py

@@ -68,6 +68,7 @@
     BYTES_TYPE,
     FILENAME,
     NAME,
+    FORMAT,
 )
 from .utils import (
     is_valid_data_type,
@@ -424,21 +425,27 @@ def get_data_id_format(self, data_id: str) -> str:
         format_list = self._filter_dataset_attrs([DATASET_FORMAT], [item])
         return format_list[0].get(DATASET_FORMAT)[0]
 
-    def get_spatial_coverage_and_resolution(
-        self, data_id: str
+    def get_metadata(
+        self, data_id: str, metadata_fields: list[str]
     ) -> dict[str : str | None]:
         self._fetch_all_datasets()
         download_info = [
             data[DOWNLOADABLE_FILES][ITEMS]
             for data in self._datasets_info
             if data[CLMS_DATA_ID] == data_id
         ]
-        spatial_cov_res_list = []
+        metadata_list = []
         for info in download_info[0]:
-            spatial_cov_res_list.append(
-                {SPATIAL_COVERAGE: info[SPATIAL_COVERAGE], RESOLUTION: info[RESOLUTION]}
-            )
-        return spatial_cov_res_list
+            metadata = {}
+            if "area" in metadata_fields and SPATIAL_COVERAGE in info:
+                metadata[SPATIAL_COVERAGE] = info[SPATIAL_COVERAGE]
+            if "resolution" in metadata_fields and RESOLUTION in info:
+                metadata[RESOLUTION] = info[RESOLUTION]
+            if "format" in metadata_fields and FORMAT in info:
+                metadata[FORMAT] = info[FORMAT]
+
+            metadata_list.append(metadata)
+        return metadata_list
 
     def _current_requests(self, dataset_id: str) -> tuple:
         self.refresh_token()

xcube_clms/constants.py

@@ -43,6 +43,7 @@
 ITEMS = "items"
 SPATIAL_COVERAGE = "area"
 RESOLUTION = "resolution"
+FORMAT = "format"
 FILE_ID = "@id"
 BOUNDING_BOX = "geographicBoundingBox"
 CRS = "coordinateReferenceSystemList"

xcube_clms/store.py

@@ -134,14 +134,13 @@ def get_search_params_schema(
     ) -> JsonObjectSchema:
         pass
 
-    def get_spatial_coverage_and_resolution(
-        self, data_id: str
+    def get_metadata(
+        self, data_id: str, metadata_fields: list[str]
     ) -> dict[str : str | None]:
-        return self.clms.get_spatial_coverage_and_resolution(data_id)
+        return self.clms.get_metadata(data_id, metadata_fields)
 
-    def preload_data(self, data_request: list[dict]):
-        for data in data_request:
-            ...
+    def preload_data(self, data_requests: list[dict]):
+        return self.clms.preload_data(data_requests)
 
     @classmethod
     def get_preload_data_params_schema(cls) -> JsonArraySchema: