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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.cluster;
import org.onlab.packet.IpAddress;
/**
* Represents a controller instance as a member in a cluster.
*/
public interface ControllerNode {
/** Represents the operational state of the instance. */
enum State {
/**
* Signifies that the instance is active and operating normally.
*/
ACTIVE,
/**
* Signifies that the instance is inactive, which means either down or
* up, but not operational.
*/
INACTIVE
}
/**
* Returns the instance identifier.
*
* @return instance identifier
*/
NodeId id();
/**
* Returns the IP address of the controller instance.
*
* @return IP address
*/
IpAddress ip();
/**
* Returns the TCP port on which the node listens for connections.
*
* @return TCP port
*/
int tcpPort();
}
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