data_structures.py 文件源码

def _is_valid(cls, *args, **kwargs):
        # fill our args
        output_dir = args[0]
        # boxlib datasets are always directories
        if not os.path.isdir(output_dir): return False
        header_filename = os.path.join(output_dir, "Header")
        jobinfo_filename = os.path.join(output_dir, "job_info")
        if not os.path.exists(header_filename):
            # We *know* it's not boxlib if Header doesn't exist.
            return False
        args = inspect.getcallargs(cls.__init__, args, kwargs)
        # This might need to be localized somehow
        if args['cparam_filename'] is None:
            return True  # Treat as generic boxlib data
        inputs_filename = os.path.join(
            os.path.dirname(os.path.abspath(output_dir)),
            args['cparam_filename'])
        if not os.path.exists(inputs_filename) and \
           not os.path.exists(jobinfo_filename):
            return True  # We have no parameters to go off of
        # If we do have either inputs or jobinfo, we should be deferring to a
        # different frontend.
        return False