com.userweave.domain.service.impl.GeneralStatisticsImpl.java Source code

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Here is the source code for com.userweave.domain.service.impl.GeneralStatisticsImpl.java

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/*******************************************************************************
 * This file is part of UserWeave.
 *
 *     UserWeave is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU Affero General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 *
 *     UserWeave 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 Affero General Public License for more details.
 *
 *     You should have received a copy of the GNU Affero General Public License
 *     along with UserWeave.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Copyright 2012 User Prompt GmbH | Psychologic IT Expertise
 *******************************************************************************/
package com.userweave.domain.service.impl;

import java.text.DecimalFormat;
import java.util.Formatter;

import org.apache.commons.math.stat.descriptive.SummaryStatistics;

import com.userweave.domain.service.GeneralStatistics;

@SuppressWarnings("serial")
public class GeneralStatisticsImpl implements GeneralStatistics {

    private final Long average;
    //private final Long maximum;
    //private final Long minimum;

    private final Double deviation;

    private Integer overallStarted;
    private final Integer started;
    private final Integer finished;

    public GeneralStatisticsImpl(SummaryStatistics stats, Integer overallStarted, Integer started,
            Integer finished) {
        this(overallStarted, started, finished, stats == null ? 0L : Double.valueOf(stats.getMean()).longValue(),
                stats == null ? 0L : stats.getStandardDeviation());
    }

    public GeneralStatisticsImpl(Integer overallStarted, Integer started, Integer finished, Long average,
            Double deviation) {
        this.started = started;
        this.finished = finished;
        this.overallStarted = overallStarted;
        this.average = average;
        this.deviation = deviation;
    }

    @Override
    public Long getAverage() {
        return average;
    }

    @Override
    public Double getDeviation() {
        return deviation;
    }

    @Override
    public Integer getDropout() {
        if (getStarted() != null && getStarted() != 0) {
            return Double.valueOf((getStarted() - getFinished()) * 100.0 / getStarted()).intValue();
        } else {
            return 0;
        }
    }

    @Override
    public Integer getFinished() {
        return finished;
    }

    @Override
    public Integer getStarted() {
        return started;
    }

    @Override
    public String getAverageToMinute() {
        long seconds = getAverage() % 60;

        long minutes = getAverage() / 60L;

        return new Formatter().format("%d:%02d", minutes, seconds).toString();
    }

    @Override
    public String getDeviationToMinute() {
        if (getDeviation() > 0d) {
            return new DecimalFormat("###########.##").format(getDeviation() / 60);
        } else {
            return "0,00";
        }
    }

    @Override
    public Integer getStartedToPercent() {
        if (overallStarted != null && overallStarted != 0) {
            return started * 100 / overallStarted;
        } else {
            return 100;
        }
    }

    @Override
    public Integer getFinishedToPercent() {
        if (overallStarted != null && overallStarted != 0) {
            return finished * 100 / overallStarted;
        } else {
            return 100;
        }
    }

    @Override
    public Integer getOverallStarted() {
        return overallStarted;
    }

    @Override
    public void setOverallStarted(Integer overallStarted) {
        this.overallStarted = overallStarted;
    }

}