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# Copyright (c) DataLab Platform Developers, BSD 3-Clause license, see LICENSE file.
"""
Sigima Client Utilities
-----------------------
Common utilities shared between client remote control and stub server modules.
"""
from __future__ import annotations
import importlib
from io import BytesIO
from xmlrpc.client import Binary
import guidata.dataset as gds
import numpy as np
from guidata.io import JSONReader, JSONWriter
# pylint: disable=duplicate-code
def array_to_rpcbinary(data: np.ndarray) -> Binary:
"""Convert NumPy array to XML-RPC Binary object, with shape and dtype.
The array is converted to a binary string using NumPy's native binary
format.
Args:
data: NumPy array to convert
Returns:
XML-RPC Binary object
"""
dbytes = BytesIO()
np.save(dbytes, data, allow_pickle=False)
return Binary(dbytes.getvalue())
def rpcbinary_to_array(binary: Binary) -> np.ndarray:
"""Convert XML-RPC binary to NumPy array.
Args:
binary: XML-RPC Binary object
Returns:
NumPy array
"""
dbytes = BytesIO(binary.data)
return np.load(dbytes, allow_pickle=False)
def dataset_to_rpcjson(param: gds.DataSet) -> list[str]:
"""Convert guidata DataSet to XML-RPC compatible JSON data.
The JSON data is a list of three elements:
- The first element is the module name of the DataSet class
- The second element is the class name of the DataSet class
- The third element is the JSON data of the DataSet instance
Args:
param: guidata DataSet to convert
Returns:
XML-RPC compatible JSON data (3-element list)
"""
writer = JSONWriter()
param.serialize(writer)
param_json = writer.get_json()
klass = param.__class__
return [klass.__module__, klass.__name__, param_json]
def rpcjson_to_dataset(param_data: list[str]) -> gds.DataSet:
"""Convert XML-RPC compatible JSON data to guidata DataSet.
Args:
param_data: XML-RPC compatible JSON data (3-element list)
Returns:
guidata DataSet
"""
param_module, param_clsname, param_json = param_data
mod = importlib.__import__(param_module, fromlist=[param_clsname])
klass = getattr(mod, param_clsname)
param: gds.DataSet = klass()
reader = JSONReader(param_json)
param.deserialize(reader)
return param
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