| /* |
| * Copyright 2014 Open Networking Laboratory |
| * |
| * 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. |
| */ |
| package org.onosproject.openflow.controller.driver; |
| |
| /** |
| * When we remove a pending role request we use this enum to indicate how we |
| * arrived at the decision. When we send a role request to the switch, we |
| * also use this enum to indicate what we expect back from the switch, so the |
| * role changer can match the reply to our expectation. |
| */ |
| public enum RoleRecvStatus { |
| /** The switch returned an error indicating that roles are not. |
| * supported*/ |
| UNSUPPORTED, |
| /** The request timed out. */ |
| NO_REPLY, |
| /** The reply was old, there is a newer request pending. */ |
| OLD_REPLY, |
| /** |
| * The reply's role matched the role that this controller set in the |
| * request message - invoked either initially at startup or to reassert |
| * current role. |
| */ |
| MATCHED_CURRENT_ROLE, |
| /** |
| * The reply's role matched the role that this controller set in the |
| * request message - this is the result of a callback from the |
| * global registry, followed by a role request sent to the switch. |
| */ |
| MATCHED_SET_ROLE, |
| /** |
| * The reply's role was a response to the query made by this controller. |
| */ |
| REPLY_QUERY, |
| /** We received a role reply message from the switch |
| * but the expectation was unclear, or there was no expectation. |
| */ |
| OTHER_EXPECTATION, |
| } |