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# Copyright 2015 Futurewei. 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.
from oslo_log import helpers as log_helpers
from oslo_log import log as logging
from oslo_utils import excutils
from neutron.i18n import _LE
from networking_sfc.db import sfc_db
from networking_sfc.extensions import sfc as sfc_ext
from networking_sfc.services.sfc.common import context as sfc_ctx
from networking_sfc.services.sfc.common import exceptions as sfc_exc
from networking_sfc.services.sfc import driver_manager as sfc_driver
LOG = logging.getLogger(__name__)
class SfcPlugin(sfc_db.SfcDbPlugin):
"""SFC plugin implementation."""
supported_extension_aliases = [sfc_ext.SFC_EXT]
path_prefix = sfc_ext.SFC_PREFIX
def __init__(self):
self.driver_manager = sfc_driver.SfcDriverManager()
super(SfcPlugin, self).__init__()
self.driver_manager.initialize()
@log_helpers.log_method_call
def create_port_chain(self, context, port_chain):
port_chain_db = super(SfcPlugin, self).create_port_chain(
context, port_chain)
portchain_db_context = sfc_ctx.PortChainContext(
self, context, port_chain_db)
try:
self.driver_manager.create_port_chain(portchain_db_context)
except sfc_exc.SfcDriverError as e:
LOG.exception(e)
with excutils.save_and_reraise_exception():
LOG.error(_LE("Create port chain failed, "
"deleting port_chain '%s'"),
port_chain_db['id'])
self.delete_port_chain(context, port_chain_db['id'])
return port_chain_db
@log_helpers.log_method_call
def update_port_chain(self, context, portchain_id, port_chain):
original_portchain = self.get_port_chain(context, portchain_id)
updated_portchain = super(SfcPlugin, self).update_port_chain(
context, portchain_id, port_chain)
portchain_db_context = sfc_ctx.PortChainContext(
self, context, updated_portchain,
original_portchain=original_portchain)
try:
self.driver_manager.update_port_chain(portchain_db_context)
except sfc_exc.SfcDriverError as e:
LOG.exception(e)
with excutils.save_and_reraise_exception():
LOG.error(_LE("Update port chain failed, port_chain '%s'"),
updated_portchain['id'])
# TODO(qijing): should we rollback the database update here?
return updated_portchain
@log_helpers.log_method_call
def delete_port_chain(self, context, portchain_id):
pc = self.get_port_chain(context, portchain_id)
pc_context = sfc_ctx.PortChainContext(self, context, pc)
try:
self.driver_manager.delete_port_chain(pc_context)
except sfc_exc.SfcDriverError as e:
LOG.exception(e)
with excutils.save_and_reraise_exception():
LOG.error(_LE("Delete port chain failed, portchain '%s'"),
portchain_id)
# TODO(qijing): unsync in case deleted in driver but fail in database
super(SfcPlugin, self).delete_port_chain(context, portchain_id)
@log_helpers.log_method_call
def create_port_pair(self, context, port_pair):
portpair_db = super(SfcPlugin, self).create_port_pair(
context, port_pair)
portpair_context = sfc_ctx.PortPairContext(
self, context, portpair_db)
try:
self.driver_manager.create_port_pair(portpair_context)
except sfc_exc.SfcDriverError as e:
LOG.exception(e)
with excutils.save_and_reraise_exception():
LOG.error(_LE("Create port pair failed, "
"deleting port_pair '%s'"),
portpair_db['id'])
self.delete_port_pair(context, portpair_db['id'])
return portpair_db
@log_helpers.log_method_call
def update_port_pair(self, context, portpair_id, port_pair):
original_portpair = self.get_port_pair(context, portpair_id)
updated_portpair = super(SfcPlugin, self).update_port_pair(
context, portpair_id, port_pair)
portpair_context = sfc_ctx.PortPairContext(
self, context, updated_portpair,
original_portpair=original_portpair)
try:
self.driver_manager.update_port_pair(portpair_context)
except sfc_exc.SfcDriverError as e:
LOG.exception(e)
with excutils.save_and_reraise_exception():
LOG.error(_LE("Update port pair failed, port_pair '%s'"),
updated_portpair['id'])
return updated_portpair
@log_helpers.log_method_call
def delete_port_pair(self, context, portpair_id):
portpair = self.get_port_pair(context, portpair_id)
portpair_context = sfc_ctx.PortPairContext(
self, context, portpair)
try:
self.driver_manager.delete_port_pair(portpair_context)
except sfc_exc.SfcDriverError as e:
LOG.exception(e)
with excutils.save_and_reraise_exception():
LOG.error(_LE("Delete port pair failed, port_pair '%s'"),
portpair_id)
super(SfcPlugin, self).delete_port_pair(context, portpair_id)
@log_helpers.log_method_call
def create_port_pair_group(self, context, port_pair_group):
portpairgroup_db = super(SfcPlugin, self).create_port_pair_group(
context, port_pair_group)
portpairgroup_context = sfc_ctx.PortPairGroupContext(
self, context, portpairgroup_db)
try:
self.driver_manager.create_port_pair_group(portpairgroup_context)
except sfc_exc.SfcDriverError as e:
LOG.exception(e)
with excutils.save_and_reraise_exception():
LOG.error(_LE("Create port pair group failed, "
"deleting port_pair_group '%s'"),
portpairgroup_db['id'])
self.delete_port_pair_group(context, portpairgroup_db['id'])
return portpairgroup_db
@log_helpers.log_method_call
def update_port_pair_group(
self, context, portpairgroup_id, port_pair_group
):
original_portpairgroup = self.get_port_pair_group(
context, portpairgroup_id)
updated_portpairgroup = super(SfcPlugin, self).update_port_pair_group(
context, portpairgroup_id, port_pair_group)
portpairgroup_context = sfc_ctx.PortPairGroupContext(
self, context, updated_portpairgroup,
original_portpairgroup=original_portpairgroup)
try:
self.driver_manager.update_port_pair_group(portpairgroup_context)
except sfc_exc.SfcDriverError as e:
LOG.exception(e)
with excutils.save_and_reraise_exception():
LOG.error(_LE("Update port pair group failed, "
"port_pair_group '%s'"),
updated_portpairgroup['id'])
return updated_portpairgroup
@log_helpers.log_method_call
def delete_port_pair_group(self, context, portpairgroup_id):
portpairgroup = self.get_port_pair_group(context, portpairgroup_id)
portpairgroup_context = sfc_ctx.PortPairGroupContext(
self, context, portpairgroup)
try:
self.driver_manager.delete_port_pair_group(portpairgroup_context)
except sfc_exc.SfcDriverError as e:
LOG.exception(e)
with excutils.save_and_reraise_exception():
LOG.error(_LE("Delete port pair group failed, "
"port_pair_group '%s'"),
portpairgroup_id)
super(SfcPlugin, self).delete_port_pair_group(context,
portpairgroup_id)
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