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OpenStack Study: nexus_db_v2.py**** CubicPower OpenStack Study **** def get_nexusport_binding(port_id, vlan_id, switch_ip, instance_id): """Lists a nexusport binding.""" LOG.debug(_("get_nexusport_binding() called")) return _lookup_all_nexus_bindings(port_id=port_id, vlan_id=vlan_id, switch_ip=switch_ip, instance_id=instance_id)
**** CubicPower OpenStack Study **** def get_nexusvlan_binding(vlan_id, switch_ip): """Lists a vlan and switch binding.""" LOG.debug(_("get_nexusvlan_binding() called")) return _lookup_all_nexus_bindings(vlan_id=vlan_id, switch_ip=switch_ip)
**** CubicPower OpenStack Study **** def add_nexusport_binding(port_id, vlan_id, switch_ip, instance_id): """Adds a nexusport binding.""" LOG.debug(_("add_nexusport_binding() called")) session = db.get_session() binding = nexus_models_v2.NexusPortBinding(port_id=port_id, vlan_id=vlan_id, switch_ip=switch_ip, instance_id=instance_id) session.add(binding) session.flush() return binding
**** CubicPower OpenStack Study **** def remove_nexusport_binding(port_id, vlan_id, switch_ip, instance_id): """Removes a nexusport binding.""" LOG.debug(_("remove_nexusport_binding() called")) session = db.get_session() binding = _lookup_all_nexus_bindings(session=session, vlan_id=vlan_id, switch_ip=switch_ip, port_id=port_id, instance_id=instance_id) for bind in binding: session.delete(bind) session.flush() return binding
**** CubicPower OpenStack Study **** def update_nexusport_binding(port_id, new_vlan_id): """Updates nexusport binding.""" if not new_vlan_id: LOG.warning(_("update_nexusport_binding called with no vlan")) return LOG.debug(_("update_nexusport_binding called")) session = db.get_session() binding = _lookup_one_nexus_binding(session=session, port_id=port_id) binding.vlan_id = new_vlan_id session.merge(binding) session.flush() return binding
**** CubicPower OpenStack Study **** def get_nexusvm_binding(vlan_id, instance_id): """Lists nexusvm bindings.""" LOG.debug(_("get_nexusvm_binding() called")) return _lookup_first_nexus_binding(instance_id=instance_id, vlan_id=vlan_id)
**** CubicPower OpenStack Study **** def get_port_vlan_switch_binding(port_id, vlan_id, switch_ip): """Lists nexusvm bindings.""" LOG.debug(_("get_port_vlan_switch_binding() called")) return _lookup_all_nexus_bindings(port_id=port_id, switch_ip=switch_ip, vlan_id=vlan_id)
**** CubicPower OpenStack Study **** def get_port_switch_bindings(port_id, switch_ip): """List all vm/vlan bindings on a Nexus switch port.""" LOG.debug(_("get_port_switch_bindings() called, " "port:'%(port_id)s', switch:'%(switch_ip)s'"), {'port_id': port_id, 'switch_ip': switch_ip}) try: return _lookup_all_nexus_bindings(port_id=port_id, switch_ip=switch_ip) except c_exc.NexusPortBindingNotFound: pass
**** CubicPower OpenStack Study **** def get_nexussvi_bindings(): """Lists nexus svi bindings.""" LOG.debug(_("get_nexussvi_bindings() called")) return _lookup_all_nexus_bindings(port_id='router')
**** CubicPower OpenStack Study **** def _lookup_nexus_bindings(query_type, session=None, **bfilter): """Look up 'query_type' Nexus bindings matching the filter. :param query_type: 'all', 'one' or 'first' :param session: db session :param bfilter: filter for bindings query :return: bindings if query gave a result, else raise NexusPortBindingNotFound. """ if session is None: session = db.get_session() query_method = getattr(session.query( nexus_models_v2.NexusPortBinding).filter_by(**bfilter), query_type) try: bindings = query_method() if bindings: return bindings except sa_exc.NoResultFound: pass raise c_exc.NexusPortBindingNotFound(**bfilter)
**** CubicPower OpenStack Study **** def _lookup_all_nexus_bindings(session=None, **bfilter): return _lookup_nexus_bindings('all', session, **bfilter)
**** CubicPower OpenStack Study **** def _lookup_one_nexus_binding(session=None, **bfilter): return _lookup_nexus_bindings('one', session, **bfilter)
**** CubicPower OpenStack Study **** def _lookup_first_nexus_binding(session=None, **bfilter): return _lookup_nexus_bindings('first', session, **bfilter)
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