com.milaboratory.util.ProgressReporter Maven / Gradle / Ivy

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/*
 * MiTCR 
 *
 * Copyright (c) 2010-2013:
 *     Bolotin Dmitriy     
 *     Chudakov Dmitriy    
 *
 * MiTCR is free software: you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option)
 * any later version.
 *
 * 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 for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program. If not, see .
 */
package com.milaboratory.util;

import java.io.PrintStream;
import java.text.DecimalFormat;

public class ProgressReporter implements Runnable {
    private static final DecimalFormat percentFormat = new DecimalFormat("##.#'%'");
    private final PrintStream stream;
    private final CanReportProgressAndStage reporter;

    public ProgressReporter(CanReportProgressAndStage reporter, PrintStream stream) {
        this.stream = stream;
        this.reporter = reporter;
    }

    public ProgressReporter(CanReportProgressAndStage reporter) {
        this(reporter, System.out);
    }

    public ProgressReporter(final String prefix, final CanReportProgress reporter) {
        this(prefix, reporter, System.out);
    }

    public ProgressReporter(final String prefix, final CanReportProgress reporter, PrintStream stream) {
        this.stream = stream;
        this.reporter = new CanReportProgressAndStage() {
            @Override
            public String getStage() {
                return prefix;
            }

            @Override
            public double getProgress() {
                return reporter.getProgress();
            }

            @Override
            public boolean isFinished() {
                return reporter.isFinished();
            }
        };
    }

    @Override
    public void run() {
        long currentStamp, lastStamp = System.currentTimeMillis();
        double currentProgress, lastValue = Double.NaN;
        String currentStage;
        try {
            while (!reporter.isFinished()) {
                //currentStamp = System.currentTimeMillis();
                //String speed = "undef";
                //if (lastValue != Double.NaN) {
                //    speed = "" + ((currentValue - lastValue) * 1000 / (currentStamp - lastStamp));
                //}
                //System.out.println(currentValue + " (" + speed + " units/sec)");

                currentProgress = reporter.getProgress();
                currentStage = reporter.getStage();

                if (currentStage == null)
                    currentStage = "null";

                String sProgress;
                if (Double.isNaN(currentProgress))
                    sProgress = "progress unknown";
                else
                    sProgress = percentFormat.format(currentProgress * 100.0);

                System.out.println(currentStage + ": " + sProgress);

                //lastValue = currentProgress;
                //lastStamp = currentStamp;

                Thread.sleep(1000);
            }
        } catch (InterruptedException e) {
        }
    }
}