#
# Copyright (c) 2015-2016 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
import six

from abc import ABCMeta
from abc import abstractmethod
from abc import abstractproperty


@six.add_metaclass(ABCMeta)
class CatalogPlugin(object):
    """
    Abstract Catalog Plugin Class Definition
    """
    @abstractproperty
    def name(self):
        """The name of plugin """
        pass

    @abstractproperty
    def version(self):
        """The versions of the plugin  """
        pass

    @abstractproperty
    def provider(self):
        """Vendor created the plugin """
        pass

    @abstractproperty
    def signature(self):
        """Signature of the plugin """
        pass

    @abstractmethod
    def read_vnf_descriptor(self, vnfd_id, vnf_vendor, vnf_version):
        """Read a particular vnf descriptor """
        pass

    @abstractmethod
    def initialize(self, version):
        """Initialize the plugin """
        pass

    @abstractmethod
    def finalize(self):
        """Finalize the plugin """
        pass