Module load.array in plugin tabular v0.5.2

Deserialize array data.

Author(s)	Markus Binsteiner (markus@frkl.io)
Tags	tabular
Python class	kiara_plugin.tabular.modules.array.DeserializeArrayModule

Configuration

Module configuration options

Configuration class: kiara.modules.included_core_modules.serialization.SerializeConfig

Name	Description	Type	Required?	Default
serialization_profile	The name of the serialization profile used to serialize the source value.	string	true	null
target_profile	The profile name of the de-serialization result data.	string	true	null
value_type	The value type of the actual (unserialized) value.	string	true	null
constants	Value constants for this module.	object	false	null
defaults	Value defaults for this module.	object	false	null

Source code

Module source code

class DeserializeArrayModule(DeserializeValueModule):
    """Deserialize array data."""

    _module_type_name = "load.array"

    @classmethod
    def retrieve_supported_target_profiles(cls) -> Mapping[str, Type]:
        return {"python_object": KiaraArray}

    @classmethod
    def retrieve_serialized_value_type(cls) -> str:
        return "array"

    @classmethod
    def retrieve_supported_serialization_profile(cls) -> str:
        return "feather"

    def to__python_object(self, data: SerializedData, **config: Any):

        assert "array.arrow" in data.get_keys() and len(list(data.get_keys())) == 1

        chunks = data.get_serialized_data("array.arrow")

        # TODO: support multiple chunks
        assert chunks.get_number_of_chunks() == 1
        files = list(chunks.get_chunks(as_files=True, symlink_ok=True))
        assert len(files) == 1

        array_file = files[0]

        array = KiaraArray(data_path=array_file)
        return array