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/*
 * Copyright (C) 2020 Information Retrieval Group at Universidad Autónoma
 * de Madrid, http://ir.ii.uam.es
 * 
 *  This Source Code Form is subject to the terms of the Mozilla Public
 *  License, v. 2.0. If a copy of the MPL was not distributed with this
 *  file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */
package es.uam.eps.ir.relison.diffusion.stop;

import es.uam.eps.ir.relison.diffusion.data.Data;

import java.io.Serializable;

/**
 * Stop condition that determines a maximum possible timestamp for the execution.
 *
 * @author Javier Sanz-Cruzado ([email protected])
 * @author Pablo Castells ([email protected])
 *
 * @param  type of the users.
 * @param  type of the information pieces.
 * @param  type of the user and information pieces features.
 */
public class MaxTimestampStopCondition implements StopCondition
{
    /**
     * Maximum possible timestamp.
     */
    private final long maxTimestamp;
    
    /**
     * Constructor.
     * @param maxTimestamp maximum timestamp. The iteration will stop after this value is passed.
     */
    public MaxTimestampStopCondition(long maxTimestamp)
    {
        this.maxTimestamp = maxTimestamp;
    }
    
    @Override
    public boolean stop(int numIter, int numPropagated, int propagatingUsers, long newlyPropagated, long totalPropagated, Data data, Long timestamp)
    {
        return timestamp == null || timestamp > maxTimestamp;
    }
    
}