Beam Weight Store Backend

This module provides a backend to connect to telmodel for the Beam Weight Store.

class MccsBeamWeightStoreBackend(*args, **kwargs)[source]

The MCCS Beam Weight Store Backend.

This class defines the protocol that the backend classes should follow.

__init__(*args, **kwargs)
contains(weighting_key: str) → bool[source]

Check if the database contains the weighting_key.

Parameters:

weighting_key – The weighting key.

Returns:

True or False if the key is in the database.

delete(weighting_key: str) → None[source]

Delete the weights from the database.

Parameters:

weighting_key – The weighting key.

property eep_indices: ndarray[Any, dtype[int32]]

Get the EEP indices.

Returns:

The list of EEP indices.

insert(weighting_key: str, weights: ndarray[Any, dtype[complex64]], indices: ndarray[Any, dtype[int32]] | None = None) → None[source]

Insert the weights into the database.

Parameters:

  • weighting_key – The weighting key.

  • weights – The list of weights.

  • indices – The EEP indices of the antennas

select(weighting_key: str, indices_out: ndarray[Any, dtype[int32]] | None = None) → ndarray[Any, dtype[complex64]][source]

Select the weights from the database.

Parameters:

  • weighting_key – The weighting key.

  • indices_out – The EEP indices of the antennas

Returns:

The list of weights.

property telescope: str

Get the telescope name.

Returns:

The telescope name.

update(weighting_key: str, weights: ndarray[Any, dtype[complex64]], indices: ndarray[Any, dtype[int32]] | None = None) → None[source]

Update the weights in the database.

Parameters:

  • weighting_key – The weighting key.

  • weights – The list of weights.

  • indices – The EEP indices of the antennas.

property url: str

Get the database url.

Returns:

The database url.

property weighting_keys: list[str]

Get the weighting keys.

Returns:

The list of weighting keys.

class MccsBeamWeightStoreBackendFactory[source]

A factory to create MccsBeamWeightStoreBackend objects.

static create(backend: str, url: str, telescope: str, logger: Logger) → MccsBeamWeightStoreBackend[source]

Make a beam weight store object with the chosen backend.

Parameters:

  • backend – The beam weight store backend.

  • url – The beam weight store URL.

  • telescope – The name of the telescope.

  • logger – The logger object.

Returns:

A BeamWeightStore object.

Raises:

ValueError – If the backend is not known.