kalefranz/auxlib

# -*- coding: utf-8 -*-
from logging import getLogger

log = getLogger(__name__)


def Raise(exception):  # NOQA
    raise exception


class AuxlibError(object):
    """Mixin to identify exceptions associated with the auxlib package."""


class AuthenticationError(AuxlibError, ValueError):
    pass


class NotFoundError(AuxlibError, KeyError):
    pass


class InitializationError(AuxlibError, EnvironmentError):
    pass


class SenderError(AuxlibError, IOError):
    pass


class AssignmentError(AuxlibError, AttributeError):
    pass


class ValidationError(AuxlibError, TypeError):

    def __init__(self, key, value=None, valid_types=None, msg=None):
        self.__cause__ = None  # in python3 don't chain ValidationError exceptions
        if msg is not None:
            super(ValidationError, self).__init__(msg)
        elif value is None:
            super(ValidationError, self).__init__("Value for {0} cannot be None."
                                                  "".format(key))
        elif valid_types is None:
            super(ValidationError, self).__init__("Invalid value {0} for {1}"
                                                  "".format(value, key))
        else:
            super(ValidationError, self).__init__("{0} must be of type {1}, not {2}"
                                                  "".format(key, valid_types, repr(value)))


class ThisShouldNeverHappenError(AuxlibError, AttributeError):
    pass