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/*
* 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,
}
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