Source code for cameo.exceptions

# Copyright 2014 Novo Nordisk Foundation Center for Biosustainability, DTU.
#
# 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.

from __future__ import absolute_import, print_function

import optlang.interface


class IncompatibleTargets(Exception):
    def __init__(self, target1, target2):
        super(IncompatibleTargets, self).__init__("Incompatible targets %s and %s" % (target1, target2))
        self.target1 = target1
        self.target2 = target2


class SolveError(Exception):
    def __init__(self, message):
        super(SolveError, self).__init__(message)


class Infeasible(SolveError):
    pass


class Unbounded(SolveError):
    pass


class FeasibleButNotOptimal(SolveError):
    pass


class UndefinedSolution(SolveError):
    pass


_OPTLANG_TO_EXCEPTIONS_DICT = dict((
    (optlang.interface.INFEASIBLE, Infeasible), (optlang.interface.UNBOUNDED, Unbounded),
    (optlang.interface.FEASIBLE, FeasibleButNotOptimal), (optlang.interface.UNDEFINED, UndefinedSolution)))