pychunked_data_view.chunked_data_view#

Attributes#

MarsSelection

Classes#

Chunking

Defines how a axis will be chunked

AxisDefinition

Defines which axis from a MARS Request form an axis in the Zarr array.

ChunkedDataView

ExtractorType

Suported data extractors.

ChunkedDataViewBuilder

Functions#

_mars_selection_to_string(→ str)

Module Contents#

type MarsSelection = Mapping[str, str | int | float | Collection[str | int | float]]#
_mars_selection_to_string(request: MarsSelection) → str#
class Chunking(*args, **kwds)#

Bases: enum.Enum

Defines how a axis will be chunked

NONE#

Axis will not be chunked, accessing any value from this axis will load all values.

SINGLE_VALUE#

Axis will be chunked. One chunk per value.

NONE#
SINGLE_VALUE#
class IndividualChunk#
chunkShape: int#
class AxisDefinition(keys: list[str], chunking: Chunking | Chunking)#

Defines which axis from a MARS Request form an axis in the Zarr array.

Also defines if the data is to be chunked.

Parameters:

  • keys (list of str) – mars keys that for this axis.

  • chunking (Chunking) – Define how this axis shall be chunked

static _translate_chunking(chunking: Chunking | Chunking) → chunked_data_view_bindings.chunked_data_view_bindings.AxisDefinition.NoChunking | chunked_data_view_bindings.chunked_data_view_bindings.AxisDefinition.SingleValueChunking | chunked_data_view_bindings.chunked_data_view_bindings.AxisDefinition.IndividualChunking#
_obj#
property keys: list[str]#
property chunking#
class ChunkedDataView(obj: chunked_data_view_bindings.chunked_data_view_bindings.ChunkedDataView)#
_obj#
at(index: list[int] | tuple[int, Ellipsis])#
chunkShape()#
chunks()#
shape()#
fillValue()#
class ExtractorType(*args, **kwds)#

Bases: enum.Enum

Suported data extractors.

Defines what storage format the caller expects to be stored in FDB.

GRIB#

Extract data from GRIB

class ChunkedDataViewBuilder(fdb_config_file: pathlib.Path | None)#
_obj#
add_part(mars_request: MarsSelection, axes: list[AxisDefinition], extractor_type: ExtractorType)#
extend_on_axis(axis: int)#
fill_value(value: float)#
build()#