Load collection error

src/openeo_processes/cubes.py

@@ -6,6 +6,7 @@
 import odc.algo
 import rioxarray  # needed by save_result even if not directly called
 import xarray as xr
+from openeo_processes.errors import DimensionNotAvailable
 from openeo_processes.extension.odc import write_odc_product
 from openeo_processes.utils import process, get_time_dimension_from_data
 from scipy import optimize
@@ -17,7 +18,13 @@
 
 def odc_load_helper(odc_cube, params: Dict[str, Any]) -> xr.DataArray:
     """Helper method to load a xarray DataArray from ODC."""
-    datacube = odc_cube.load(**params)
+    try:
+        datacube = odc_cube.load(**params)
+    except ValueError as exp:
+        raise ValueError('For the provided collection, spatial and temporal extent no data is available. Please try'
+                         ' a different extent.')
+    except KeyError:
+        raise DimensionNotAvailable()
 
     # Improve CPU and MEM USAGE
     for name, data_var in datacube.data_vars.items():

src/openeo_processes/errors.py

@@ -45,3 +45,11 @@ def __init__(self, msg):
 
     def __str__(self):
         return self.message
+
+
+class DimensionNotAvailable(Exception):
+    def __init__(self, msg):
+        self.message = "A dimension (band) with the specified name does not exist."
+
+    def __str__(self):
+        return self.message