import json


class SolverResult:

    _data = dict()
    status = None
    time_elapsed = None
    condition = None
    constraints = None
    objectives = None
    variables = None
    solutions = None

    def __init__(self):
        pass

    def read(self, file):

        with open(file) as f:
            self._data = json.load(f)

            solver = self._data['Solver'][0]
            problem = self._data['Problem'][0]
            solution = self._data['Solution'][0]

            self.status = solver['Status']
            self.time_elapsed = solver['Time']
            self.condition = solver['Termination condition']
            self.status = solver['Status']
            self.constraints = problem['Number of constraints']
            self.objectives = problem['Number of objectives']
            self.variables = problem['Number of variables']
            self.solutions = solution['number of solutions']


sr = SolverResult()
sr.read('results2.json')
print(sr.time_elapsed, sr.status, sr.condition)