def __init__(self, name, description, unit, value):
super(Indicator, self).__init__()
self.name = name
self.description = description
self.unit = unit
if not isinstance(value, numbers.Number):
raise exception.InvalidIndicatorValue(
_("An indicator value should be a number"))
self.value = value
def validate(cls, solution):
"""Validate the given solution
:raises: :py:class:`~.InvalidIndicatorValue` when the validation fails
"""
indicator = cls()
value = None
try:
value = getattr(solution, indicator.name)
indicator.schema(value)
except Exception as exc:
LOG.exception(exc)
raise exception.InvalidIndicatorValue(
name=indicator.name, value=value, spec_type=type(indicator))