Class InaccessibleVariableDataStore

xarray/tests/test_dataset.py:214–236

Store that does not allow any data access.

class InaccessibleVariableDataStore(backends.InMemoryDataStore):
    """
    Store that does not allow any data access.
    """

    def __init__(self):
        super().__init__()
        self._indexvars = set()

    def store(self, variables, *args, **kwargs) -> None:
        super().store(variables, *args, **kwargs)
        for k, v in variables.items():
            if isinstance(v, IndexVariable):
                self._indexvars.add(k)

    def get_variables(self):
        def lazy_inaccessible(k, v):
            if k in self._indexvars:
                return v
            data = indexing.LazilyIndexedArray(InaccessibleArray(v.values))
            return Variable(v.dims, data, v.attrs)

        return {k: lazy_inaccessible(k, v) for k, v in self._variables.items()}


class DuckBackendArrayWrapper(backends.common.BackendArray):