serializer.py 文件源码

def from_dict(cls, node_dict):
        """
        Creates a node from a dict representation
        :param node_dict: dict
        :return: datamodel.base.node.Node
        """
        # import classes, so we can instantiate them at need
        import robograph.datamodel

        # retrieve the class object so we can instantiate the node
        klass = eval(node_dict['class'])
        node = klass(name=node_dict['name'])

        # now retrieve the parameters
        parameters = dict()
        for p in node_dict['params']:
            parameters[p] = node_dict['params'][p]

            # are we deserializing a pickled function?
            if isinstance(node_dict['params'][p], unicode):
                if "py/bytes" in node_dict['params'][p]:
                    parameters[p] = cloudpickle.loads(jsonpickle.loads(node_dict['params'][p]))

        node.input(parameters)
        node.set_output_label(node_dict['output_label'])
        return node