OpenStack Study: model.py

**** CubicPower OpenStack Study ****

# vim: tabstop=4 shiftwidth=4 softtabstop=4

# Copyright 2013 Cloudbase Solutions SRL

# All Rights Reserved.

#

# Licensed under the Apache License, Version 2.0 (the "License"); you may

# not use this file except in compliance with the License. You may obtain

# a copy of the License at

#

# http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT

# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the

# License for the specific language governing permissions and limitations

# under the License.

# @author: Alessandro Pilotti, Cloudbase Solutions Srl

from sqlalchemy import Boolean, Column, ForeignKey, Integer, String

from neutron.db.models_v2 import model_base

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class VlanAllocation(model_base.BASEV2):

"""Represents allocation state of vlan_id on physical network."""

__tablename__ = 'hyperv_vlan_allocations'

physical_network = Column(String(64), nullable=False, primary_key=True)

vlan_id = Column(Integer, nullable=False, primary_key=True,

autoincrement=False)

allocated = Column(Boolean, nullable=False)

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    def __init__(self, physical_network, vlan_id):

        self.physical_network = physical_network

        self.vlan_id = vlan_id

        self.allocated = False

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class NetworkBinding(model_base.BASEV2):

"""Represents binding of virtual network to physical realization."""

__tablename__ = 'hyperv_network_bindings'

network_id = Column(String(36),

ForeignKey('networks.id', ondelete="CASCADE"),

primary_key=True)

network_type = Column(String(32), nullable=False)

physical_network = Column(String(64))

segmentation_id = Column(Integer)

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    def __init__(self, network_id, network_type, physical_network,

                 segmentation_id):

        self.network_id = network_id

        self.network_type = network_type

        self.physical_network = physical_network

        self.segmentation_id = segmentation_id