/
entity_serializing.py
65 lines (45 loc) · 1.81 KB
/
entity_serializing.py
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from itertools import groupby
from typing import Dict, List
# noinspection PyProtectedMember
from flatten_dict import flatten
def _group_by_layer(entity_list: List[Dict]) -> Dict:
return {e["layer"]: e for e in entity_list}
def _format_keys(dictionary):
flat_with_formatted_keys = {}
for k, v in dictionary.items():
nice_path = ".".join([str(i) for i in k])
flat_with_formatted_keys[nice_path] = v
return flat_with_formatted_keys
def _serialize_ve_layer(ve: Dict) -> Dict:
ve["corporate_entities"] = _group_by_layer(ve["corporate_entities"])
return ve
def _serialize_ce_layer(ce: Dict) -> Dict:
ce["location"] = _group_by_layer(ce["location"])
return ce
def _group_cme_attributes_by_layer(cme: Dict) -> Dict:
"""Group relevant CargoMovementEntity attributes by `Entity.layer`."""
vessels = [_serialize_ve_layer(ve) for ve in cme["vessels"]]
products = _group_by_layer(cme["product"])
events = {
event_type: list(g)
for event_type, g in groupby(cme["events"], lambda x: x["event_type"])
}
events_attributes = {
event_type: [_serialize_ce_layer(ce) for ce in es]
for event_type, es in events.items()
}
cme["product"] = products
cme["vessels"] = vessels
cme["events"] = events_attributes
return cme
def convert_cme_to_flat_dict(cme: Dict, cols="all") -> Dict:
"""Convert nested `CargoMovementEntity` object to flat dictionary, keeping *cols*."""
as_dict = _group_cme_attributes_by_layer(cme)
formatted = flatten_dictionary(as_dict)
if cols == "all":
return formatted
else:
return {k: v for k, v in formatted.items() if k in cols}
def flatten_dictionary(d: Dict) -> Dict:
"""Flatten dictionary, then format keys."""
return _format_keys(flatten(d, enumerate_types=(list,)))