z3fdb.simple_store_builder#

Classes#

Builder to create a Zarr store with FDB backing.

class SimpleStoreBuilder(fdb_config_file: pathlib.Path | None = None)#

Builder to create a Zarr store with FDB backing.

This builder will create a Zarr store with a Zarr Array at its root (“/”) containing the data from your MARS request(s).

Parameters:: fdb_config_file – Optional path to FDB config file. If not set normal FDB config file resolution is applied.

add_part(mars_request_key_values: str, axes: list[pychunked_data_view.AxisDefinition], extractor_type: pychunked_data_view.ExtractorType) → None#

Add a MARS request to the view.

Parameters:

mars_request_key_values (str) –
A string with fully spefified MARS key:values pairs.

For example:
type=an, class=ea, domain=g, expver=0001, stream=oper, date=2020-01-01/to/2020-01-04, levtype=sfc, step=0, param=167/131/132, time=0/to/21/by/3
axes (list of AxisDefinition) – List of AxisDefinitions that describe how axis in the MARS request are mapped to axis in the Zarr array.
extractor_type – Defines how to extract data from FDB. Currently only ExtractorType.GRIB is supported.

extend_on_axis(axis: int) → None#

Defines the extension axis when multiple parts are added.

Parameters:: axis (int) – Index of the axis that is extendet when multiple parts have been added.

build() → zarr.abc.store.Store#

Build the store from the inputs.