# BSD-3-Clause License
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# Copyright 2017 Orange
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"""
Saving and loading replica distribution to and from yaml.
"""
import yaml
from pydcop.replication.objects import ReplicaDistribution
def load_replica_dist_from_file(filename: str) -> ReplicaDistribution:
with open(filename, mode='r', encoding='utf-8') as f:
content = f.read()
if content:
return load_replica_dist(content)
def load_replica_dist(dist_str: str) -> ReplicaDistribution:
loaded = yaml.load(dist_str, Loader=yaml.FullLoader)
if 'replica_dist' not in loaded:
raise ValueError('Invalid replica distribution file')
loaded_dist = loaded['replica_dist']
return ReplicaDistribution(loaded_dist)
