org.dungeon.io.SavesTableWriter.java Source code

Introduction

Here is the source code for org.dungeon.io.SavesTableWriter.java

Source

/*
 * Copyright (C) 2015 Bernardo Sulzbach
 *
 * This program 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 <http://www.gnu.org/licenses/>.
 */

package org.dungeon.io;

import org.dungeon.date.EarthTimeUnit;
import org.dungeon.date.TimeStringBuilder;
import org.dungeon.util.Table;

import org.joda.time.Period;

import java.io.File;
import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * This class provides a method to write to the screen a table with the existing saves.
 */
public final class SavesTableWriter {

    private static final SimpleDateFormat LAST_MODIFIED_FORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

    private SavesTableWriter() {
        throw new AssertionError();
    }

    public static void writeSavesFolderTable() {
        File[] files = Loader.getSortedArrayOfSavedFiles();
        if (files != null) {
            if (files.length != 0) {
                Table table = new Table("Name", "Size", "Last modified");
                int fileCount = 0;
                int byteCount = 0;
                for (File file : files) {
                    fileCount += 1;
                    byteCount += file.length();
                    Date lastModified = new Date(file.lastModified());
                    String periodString = makePeriodString(lastModified.getTime(), System.currentTimeMillis());
                    String lastModifiedString = String.format("%s (%s)", LAST_MODIFIED_FORMAT.format(lastModified),
                            periodString);
                    table.insertRow(file.getName(), IOUtils.bytesToHuman(file.length()), lastModifiedString);
                }
                if (fileCount > 1) {
                    table.insertSeparator();
                    table.insertRow("Sum of these " + fileCount + " files", IOUtils.bytesToHuman((byteCount)));
                }
                table.print();
            } else {
                Writer.writeString("Saves folder is empty.");
            }
        } else {
            Writer.writeString("Saves folder does not exist.");
        }
    }

    private static String makePeriodString(long start, long end) {
        Period period = new Period(start, end);
        TimeStringBuilder builder = new TimeStringBuilder();
        builder.set(EarthTimeUnit.YEAR, period.getYears());
        builder.set(EarthTimeUnit.MONTH, period.getMonths());
        builder.set(EarthTimeUnit.DAY, period.getDays());
        builder.set(EarthTimeUnit.HOUR, period.getHours());
        builder.set(EarthTimeUnit.MINUTE, period.getMinutes());
        builder.set(EarthTimeUnit.SECOND, period.getSeconds());
        return builder.toString(2) + " ago";
    }

}