from typing import List, Dict, Any
from csle_common.dao.system_identification.mcmc_posterior import MCMCPosterior
from csle_common.dao.system_identification.system_model import SystemModel
from csle_common.dao.system_identification.system_model_type import SystemModelType
[docs]class MCMCSystemModel(SystemModel):
"""
A system model (list of posterior distributions) made up of posterior distributions
"""
def __init__(self, emulation_env_name: str, emulation_statistic_id: int,
posteriors: List[MCMCPosterior], descr: str):
"""
Initializes the object
:param emulation: the emulation that this system model is for
:param emulation_statistic_id: the emulation statistic that this model was built from
:param posteriors: the list of posteriors
:param descr: description of the model
"""
super(MCMCSystemModel, self).__init__(descr=descr, model_type=SystemModelType.MCMC)
self.posteriors = posteriors
self.emulation_env_name = emulation_env_name
self.emulation_statistic_id = emulation_statistic_id
self.id = -1
[docs] @staticmethod
def from_dict(d: Dict[str, Any]) -> "MCMCSystemModel":
"""
Converts a dict representation of the DTO into an instance
:param d: the dict to convert
:return: the converted instance
"""
dto = MCMCSystemModel(
posteriors=list(map(lambda y: MCMCPosterior.from_dict(y), d["posteriors"])),
emulation_env_name=d["emulation_env_name"], emulation_statistic_id=d["emulation_statistic_id"],
descr=d["descr"]
)
if "id" in d:
dto.id = d["id"]
return dto
[docs] def to_dict(self) -> Dict[str, Any]:
"""
:return: a dict representation of the DTO
"""
d: Dict[str, Any] = {}
d["posteriors"] = list(map(lambda y: y.to_dict(), self.posteriors))
d["emulation_env_name"] = self.emulation_env_name
d["emulation_statistic_id"] = self.emulation_statistic_id
d["descr"] = self.descr
d["id"] = self.id
d["model_type"] = self.model_type
return d
def __str__(self):
"""
:return: a string representation of the DTO
"""
return f"posteriors: {self.posteriors}, " \
f"emulation_env_name: {self.emulation_env_name}, " \
f"emulation_statistic_id: {self.emulation_statistic_id}," \
f"descr: {self.descr}, model_type: {self.model_type}"
[docs] def copy(self) -> "MCMCSystemModel":
"""
:return: a copy of the DTO
"""
return self.from_dict(self.to_dict())
[docs] @staticmethod
def from_json_file(json_file_path: str) -> "MCMCSystemModel":
"""
Reads a json file and converts it to a DTO
:param json_file_path: the json file path
:return: the converted DTO
"""
import io
import json
with io.open(json_file_path, 'r') as f:
json_str = f.read()
return MCMCSystemModel.from_dict(json.loads(json_str))