Array apply (#276)

* update openeo-processes

* bump 2023.9.1

* bump 2023.9.0

* add array_apply process

* run pre-commit hook

openeo_processes_dask/process_implementations/arrays.py

@@ -32,6 +32,7 @@
     "array_contains",
     "array_find",
     "array_labels",
+    "array_apply",
     "first",
     "last",
     "order",
@@ -213,6 +214,22 @@ def array_labels(data: ArrayLike) -> ArrayLike:
     return np.arange(len(data))
 
 
+def array_apply(
+    data: ArrayLike, process: Callable, context: Optional[Any] = None
+) -> ArrayLike:
+    if not context:
+        context = {}
+    positional_parameters = {"x": 0}
+    named_parameters = {"x": data, "context": context}
+    if callable(process):
+        process_to_apply = np.vectorize(process)
+        return process_to_apply(
+            data,
+            positional_parameters=positional_parameters,
+            named_parameters=named_parameters,
+        )
+
+
 def first(
     data: ArrayLike,
     ignore_nodata: Optional[bool] = True,

tests/test_arrays.py

@@ -14,6 +14,7 @@
     ArrayElementNotAvailable,
     TooManyDimensions,
 )
+from openeo_processes_dask.process_implementations.math import add
 from tests.general_checks import general_output_checks
 from tests.mockdata import create_fake_rastercube
 
@@ -251,6 +252,17 @@ def test_array_labels():
         array_labels(np.array([[1, 0, 3, 2], [5, 0, 6, 4]]))
 
 
+def test_array_apply(process_registry):
+    _process = partial(
+        process_registry["add"].implementation,
+        y=1,
+        x=ParameterReference(from_parameter="x"),
+    )
+
+    output_cube = array_apply(data=np.array([1, 2, 3, 4, 5, 6]), process=_process)
+    assert (output_cube == [2, 3, 4, 5, 6, 7]).all()
+
+
 def test_first():
     assert first(np.array([1, 0, 3, 2])) == 1
     assert pd.isnull(first(np.array([np.nan, 2, 3]), ignore_nodata=False))