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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.net.statistic;
/**
* Simple data repository for link load information.
*/
public interface Load {
/**
* Obtain the current observed rate (in bytes/s) on a link.
*
* @return long value
*/
long rate();
/**
* Obtain the latest bytes counter viewed on that link.
*
* @return long value
*/
long latest();
/**
* Indicates whether this load was built on valid values.
*
* @return boolean
*/
boolean isValid();
/**
* Returns when this value was seen.
*
* @return epoch time
*/
long time();
}
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