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-rw-r--r--networking_sfc/services/flowclassifier/plugin.py113
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diff --git a/networking_sfc/services/flowclassifier/plugin.py b/networking_sfc/services/flowclassifier/plugin.py
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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 neutron import manager
+
+from networking_sfc.db import flowclassifier_db as fc_db
+from networking_sfc.extensions import flowclassifier as fc_ext
+from networking_sfc.services.flowclassifier.common import context as fc_ctx
+from networking_sfc.services.flowclassifier.common import exceptions as fc_exc
+from networking_sfc.services.flowclassifier import driver_manager as fc_driver
+
+
+LOG = logging.getLogger(__name__)
+
+
+class FlowClassifierPlugin(fc_db.FlowClassifierDbPlugin):
+
+ """Implementation of the Plugin."""
+ supported_extension_aliases = [fc_ext.FLOW_CLASSIFIER_EXT]
+ path_prefix = fc_ext.FLOW_CLASSIFIER_PREFIX
+
+ def __init__(self):
+ self.driver_manager = fc_driver.FlowClassifierDriverManager()
+ super(FlowClassifierPlugin, self).__init__()
+ self.driver_manager.initialize()
+
+ def _get_port(self, context, id):
+ port = super(FlowClassifierPlugin, self)._get_port(context, id)
+ core_plugin = manager.NeutronManager.get_plugin()
+ return core_plugin.get_port(context, port['id'])
+
+ def _get_fixed_ip_from_port(self, context, logical_port, ip_prefix):
+ if logical_port is not None:
+ port = self._get_port(context, logical_port)
+ if (
+ ip_prefix is None and
+ 'fixed_ips' in port and
+ port['fixed_ips']
+ ):
+ for fixed_ip in port['fixed_ips']:
+ ip_prefix = (
+ '%s/32' % fixed_ip['ip_address']
+ )
+ break
+ return ip_prefix
+
+ @log_helpers.log_method_call
+ def create_flow_classifier(self, context, flow_classifier):
+ fc_db = super(FlowClassifierPlugin, self).create_flow_classifier(
+ context, flow_classifier)
+ fc_db_context = fc_ctx.FlowClassifierContext(self, context, fc_db)
+ try:
+ self.driver_manager.create_flow_classifier(fc_db_context)
+ except fc_exc.FlowClassifierDriverError as e:
+ LOG.exception(e)
+ with excutils.save_and_reraise_exception():
+ LOG.error(_LE("Create flow classifier failed, "
+ "deleting flow_classifier '%s'"),
+ fc_db['id'])
+ self.delete_flow_classifier(context, fc_db['id'])
+ return fc_db
+
+ @log_helpers.log_method_call
+ def update_flow_classifier(self, context, id, flow_classifier):
+ original_flowclassifier = self.get_flow_classifier(context, id)
+ updated_fc = super(FlowClassifierPlugin, self).update_flow_classifier(
+ context, id, flow_classifier)
+ fc_db_context = fc_ctx.FlowClassifierContext(
+ self, context, updated_fc,
+ original_flowclassifier=original_flowclassifier)
+
+ try:
+ self.driver_manager.update_flow_classifier(fc_db_context)
+ except fc_exc.FlowClassifierDriverError as e:
+ LOG.exception(e)
+ with excutils.save_and_reraise_exception():
+ LOG.error(_LE("Update flow classifier failed, "
+ "flow_classifier '%s'"),
+ updated_fc['id'])
+
+ return updated_fc
+
+ @log_helpers.log_method_call
+ def delete_flow_classifier(self, context, fc_id):
+ fc = self.get_flow_classifier(context, fc_id)
+ fc_context = fc_ctx.FlowClassifierContext(self, context, fc)
+ try:
+ self.driver_manager.delete_flow_classifier(fc_context)
+ except fc_exc.FlowClassfierDriverError as e:
+ LOG.exception(e)
+ with excutils.save_and_reraise_exception():
+ LOG.error(_LE("Delete port pair group failed, "
+ "flow_classifier '%s'"),
+ fc_id)
+
+ super(FlowClassifierPlugin, self).delete_flow_classifier(
+ context, fc_id)