Buckets.java

/*
 *
 *  * RHQ Management Platform
 *  * Copyright (C) 2005-2012 Red Hat, Inc.
 *  * All rights reserved.
 *  *
 *  * This program is free software; you can redistribute it and/or modify
 *  * it under the terms of the GNU General Public License, version 2, as
 *  * published by the Free Software Foundation, and/or the GNU Lesser
 *  * General Public License, version 2.1, also as published by the Free
 *  * Software Foundation.
 *  *
 *  * This program is distributed in the hope that it will be useful,
 *  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  * GNU General Public License and the GNU Lesser General Public License
 *  * for more details.
 *  *
 *  * You should have received a copy of the GNU General Public License
 *  * and the GNU Lesser General Public License along with this program;
 *  * if not, write to the Free Software Foundation, Inc.,
 *  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

package org.rhq.enterprise.server.measurement;

import org.joda.time.DateTime;

import org.rhq.enterprise.server.measurement.util.MeasurementDataManagerUtility;

/**
 * @author John Sanda
 */
public class Buckets {

    private int numDataPoints = MeasurementDataManagerUtility.DEFAULT_NUM_DATA_POINTS;

    private long[] buckets = new long[numDataPoints];

    private long interval;

    public Buckets(DateTime beginTime, DateTime endTime) {
        interval = (endTime.getMillis() - beginTime.getMillis()) / numDataPoints;
        for (int i = 0; i < numDataPoints; ++i) {
            buckets[i] = beginTime.getMillis() + (interval * i);
        }
    }

    public int getNumDataPoints() {
        return numDataPoints;
    }

    public long getInterval() {
        return interval;
    }

    public long get(int index) {
        return buckets[index];
    }
}