core-extra/daemon/core/emane/modelmanager.py

69 lines
2.4 KiB
Python

import logging
import pkgutil
from pathlib import Path
from core import utils
from core.emane import models as emane_models
from core.emane.emanemodel import EmaneModel
from core.errors import CoreError
logger = logging.getLogger(__name__)
class EmaneModelManager:
models: dict[str, type[EmaneModel]] = {}
@classmethod
def load_locals(cls, emane_prefix: Path) -> list[str]:
"""
Load local core emane models and make them available.
:param emane_prefix: installed emane prefix
:return: list of errors encountered loading emane models
"""
errors = []
for module_info in pkgutil.walk_packages(
emane_models.__path__, f"{emane_models.__name__}."
):
models = utils.load_module(module_info.name, EmaneModel)
for model in models:
logger.debug("loading emane model: %s", model.name)
try:
model.load(emane_prefix)
cls.models[model.name] = model
except CoreError as e:
errors.append(model.name)
logger.debug("not loading emane model(%s): %s", model.name, e)
return errors
@classmethod
def load(cls, path: Path, emane_prefix: Path) -> list[str]:
"""
Search and load custom emane models and make them available.
:param path: path to search for custom emane models
:param emane_prefix: installed emane prefix
:return: list of errors encountered loading emane models
"""
subdirs = [x for x in path.iterdir() if x.is_dir()]
subdirs.append(path)
errors = []
for subdir in subdirs:
logger.debug("loading emane models from: %s", subdir)
models = utils.load_classes(subdir, EmaneModel)
for model in models:
logger.debug("loading emane model: %s", model.name)
try:
model.load(emane_prefix)
cls.models[model.name] = model
except CoreError as e:
errors.append(model.name)
logger.debug("not loading emane model(%s): %s", model.name, e)
return errors
@classmethod
def get(cls, name: str) -> type[EmaneModel]:
model = cls.models.get(name)
if model is None:
raise CoreError(f"emame model does not exist {name}")
return model