#!/usr/bin/env python
# coding: utf8
#
# Copyright (c) 2025 Centre National d'Etudes Spatiales (CNES).
#
# This file is part of CARS
# (see https://github.com/CNES/cars).
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
"""
this module contains the abstract dsm merging application class.
"""
import logging
from abc import ABCMeta, abstractmethod
from typing import Dict
from cars.applications.application import Application
from cars.applications.application_template import ApplicationTemplate
[docs]
@Application.register("dsm_merging")
class DsmMerging(ApplicationTemplate, metaclass=ABCMeta):
"""
DsmMerging
"""
available_applications: Dict = {}
default_application = "weighted_fusion"
def __new__(cls, conf=None): # pylint: disable=W0613
"""
Return the required application
:raises:
- KeyError when the required application is not registered
:param orchestrator: orchestrator used
:param conf: configuration for merging
:return: an application_to_use object
"""
dsm_merging_method = cls.default_application
if bool(conf) is False or "method" not in conf:
logging.info(
"dsm_merging method not specified, default"
" {} is used".format(dsm_merging_method)
)
else:
dsm_merging_method = conf["method"]
if dsm_merging_method not in cls.available_applications:
logging.error(
"No dsm_merging application named {} registered".format(
dsm_merging_method
)
)
raise KeyError(
"No dsm_merging application named {} registered".format(
dsm_merging_method
)
)
logging.info(
"The DsmMerging {} application will be used".format(
dsm_merging_method
)
)
return super(DsmMerging, cls).__new__(
cls.available_applications[dsm_merging_method]
)
[docs]
def __init_subclass__(cls, short_name, **kwargs): # pylint: disable=E0302
super().__init_subclass__(**kwargs)
cls.available_applications[short_name] = cls
def __init__(self, conf=None):
"""
Init function of DSM Merging
:param conf: configuration
:return: an application_to_use object
"""
super().__init__(conf=conf)
[docs]
@abstractmethod
def run(self):
"""
Run dsm merging using initial elevation and the current dsm
"""