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OpenStack Study: nexus_models_v2.py

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

# Copyright 2012, Cisco Systems, Inc.

# 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: Rohit Agarwalla, Cisco Systems, Inc.

import sqlalchemy as sa

from neutron.db import model_base

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class NexusPortBinding(model_base.BASEV2):

"""Represents a binding of VM's to nexus ports."""

__tablename__ = "cisco_nexusport_bindings"

id = sa.Column(sa.Integer, primary_key=True, autoincrement=True)

port_id = sa.Column(sa.String(255))

vlan_id = sa.Column(sa.Integer, nullable=False)

switch_ip = sa.Column(sa.String(255))

instance_id = sa.Column(sa.String(255))

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def __repr__(self):

"""Just the binding, without the id key."""

(self.port_id, self.vlan_id, self.switch_ip, self.instance_id))

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def __eq__(self, other):

"""Compare only the binding, without the id key."""

self.port_id == other.port_id and

self.vlan_id == other.vlan_id and

self.switch_ip == other.switch_ip and

self.instance_id == other.instance_id