Issue #346 some more ProcessArgs porting

for less boilerplate code and better error messages

openeo_driver/ProcessGraphDeserializer.py

@@ -936,22 +936,18 @@ def save_result(args: Dict, env: EvalEnv) -> SaveResult:  # TODO: return type no
 
 @process_registry_100.add_function(spec=read_spec("openeo-processes/experimental/save_ml_model.json"))
 @process_registry_2xx.add_function(spec=read_spec("openeo-processes/experimental/save_ml_model.json"))
-def save_ml_model(args: dict, env: EvalEnv) -> MlModelResult:
-    data: DriverMlModel = extract_arg(args, "data", process_id="save_ml_model")
-    if not isinstance(data, DriverMlModel):
-        raise ProcessParameterInvalidException(
-            parameter="data", process="save_ml_model", reason=f"Invalid data type {type(data)!r} expected raster-cube."
-        )
-    options = args.get("options", {})
+def save_ml_model(args: ProcessArgs, env: EvalEnv) -> MlModelResult:
+    data = args.get_required("data", expected_type=DriverMlModel)
+    options = args.get_optional("options", default={}, expected_type=dict)
     return MlModelResult(ml_model=data, options=options)
 
 
 @process_registry_100.add_function(spec=read_spec("openeo-processes/experimental/load_ml_model.json"))
 @process_registry_2xx.add_function(spec=read_spec("openeo-processes/experimental/load_ml_model.json"))
-def load_ml_model(args: dict, env: EvalEnv) -> DriverMlModel:
+def load_ml_model(args: ProcessArgs, env: EvalEnv) -> DriverMlModel:
     if env.get(ENV_DRY_RUN_TRACER):
         return DriverMlModel()
-    job_id = extract_arg(args, "id")
+    job_id = args.get_required("id", expected_type=str)
     return env.backend_implementation.load_ml_model(job_id)
 
 
@@ -1430,17 +1426,17 @@ def filter_temporal(args: dict, env: EvalEnv) -> DriverDataCube:
     extent = _extract_temporal_extent(args, field="extent", process_id="filter_temporal")
     return cube.filter_temporal(start=extent[0], end=extent[1])
 
+
 @process_registry_100.add_function(spec=read_spec("openeo-processes/1.x/proposals/filter_labels.json"))
 @process_registry_2xx.add_function(spec=read_spec("openeo-processes/2.x/proposals/filter_labels.json"))
-def filter_labels(args: dict, env: EvalEnv) -> DriverDataCube:
-    cube = extract_arg(args, 'data')
-    if not isinstance(cube, DriverDataCube):
-        raise ProcessParameterInvalidException(
-            parameter="data", process="filter_labels",
-            reason=f"Invalid data type {type(cube)!r} expected cube."
-        )
+def filter_labels(args: ProcessArgs, env: EvalEnv) -> DriverDataCube:
+    cube: DriverDataCube = args.get_required("data", expected_type=DriverDataCube)
+    # TODO: validation that condition is a process graph construct
+    condition = args.get_required("condition", expected_type=dict)
+    dimension = args.get_required("dimension", expected_type=str)
+    context = args.get_optional("context", default=None)
+    return cube.filter_labels(condition=condition, dimension=dimension, context=context, env=env)
 
-    return cube.filter_labels(condition=extract_arg(args,"condition"),dimension=extract_arg(args,"dimension"),context=args.get("context",None),env=env)
 
 def _extract_bbox_extent(args: dict, field="extent", process_id="filter_bbox", handle_geojson=False) -> dict:
     extent = extract_arg(args, name=field, process_id=process_id)
@@ -1505,13 +1501,11 @@ def filter_spatial(args: ProcessArgs, env: EvalEnv) -> DriverDataCube:
 
 
 @process
-def filter_bands(args: Dict, env: EvalEnv) -> Union[DriverDataCube, DriverVectorCube]:
-    cube: Union[DriverDataCube, DriverVectorCube] = extract_arg(args, "data")
-    if not isinstance(cube, DriverDataCube) and not isinstance(cube, DriverVectorCube):
-        raise ProcessParameterInvalidException(
-            parameter="data", process="filter_bands", reason=f"Invalid data type {type(cube)!r} expected raster-cube."
-        )
-    bands = extract_arg(args, "bands", process_id="filter_bands")
+def filter_bands(args: ProcessArgs, env: EvalEnv) -> Union[DriverDataCube, DriverVectorCube]:
+    cube: Union[DriverDataCube, DriverVectorCube] = args.get_required(
+        "data", expected_type=(DriverDataCube, DriverVectorCube)
+    )
+    bands = args.get_required("bands", expected_type=list)
     return cube.filter_bands(bands=bands)
 
 
@@ -2325,10 +2319,11 @@ def load_result(args: ProcessArgs, env: EvalEnv) -> DriverDataCube:
 
 @process_registry_100.add_function(spec=read_spec("openeo-processes/1.x/proposals/inspect.json"))
 @process_registry_2xx.add_function(spec=read_spec("openeo-processes/2.x/proposals/inspect.json"))
-def inspect(args: dict, env: EvalEnv):
-    data = extract_arg(args, "data")
-    message = args.get("message", "")
-    level = args.get("level", "info")
+def inspect(args: ProcessArgs, env: EvalEnv):
+    data = args.get_required("data")
+    message = args.get_optional("message", default="")
+    code = args.get_optional("code", default="User")
+    level = args.get_optional("level", default="info")
     if message:
         _log.log(level=logging.getLevelName(level.upper()), msg=message)
     data_message = str(data)