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/*
* Copyright 2015 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.net.group;
import org.onosproject.core.GroupId;
import org.onosproject.net.PortNumber;
import org.onosproject.net.flow.TrafficTreatment;
/**
* Group Bucket definition. A default group Bucket is collection of
* Instructions that can be performed on a traffic flow. A failover
* group bucket is associated with a specific port or group that
* controls its liveness. A select group bucket contains optional
* weight field to define the weights among the buckets in the group.
*/
public interface GroupBucket {
/**
* Returns group type of the bucket.
*
* @return GroupType group type
*/
GroupDescription.Type type();
/**
* Returns list of Traffic instructions that are part of the bucket.
*
* @return TrafficTreatment traffic instruction list
*/
TrafficTreatment treatment();
/**
* Returns weight of select group bucket.
*
* @return short weight associated with a bucket
*/
short weight();
/**
* Returns port number used for liveness detection for a
* failover bucket.
*
* @return PortNumber port number used for liveness detection
*/
PortNumber watchPort();
/**
* Returns group identifier used for liveness detection for a
* failover bucket.
*
* @return GroupId group identifier to be used for liveness detection
*/
GroupId watchGroup();
/**
* Returns the number of packets processed by this group bucket.
*
* @return number of packets
*/
long packets();
/**
* Returns the number of bytes processed by this group bucket.
*
* @return number of bytes
*/
long bytes();
}
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