de.hackerspacebremen.transformer.SpeakingDateTransformer.java Source code

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Here is the source code for de.hackerspacebremen.transformer.SpeakingDateTransformer.java

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/*
 * Hackerspace Bremen Backend - An Open-Space-Notifier
 * 
 * Copyright (C) 2012 Steve Liedtke <sliedtke57@gmail.com>
 * 
 * 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 can find a copy of the GNU General Public License on http://www.gnu.org/licenses/gpl.html.
 * 
 * Contributors:
 *     Steve Liedtke <sliedtke57@gmail.com>
 */
package de.hackerspacebremen.transformer;

import java.util.Date;

import org.joda.time.DateTime;
import org.joda.time.DateTimeZone;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;

import de.hackerspacebremen.format.LanguageFormat;
import flexjson.transformer.AbstractTransformer;

/**
 * @author Steve Liedtke
 *
 */
public class SpeakingDateTransformer extends AbstractTransformer {

    private static final DateTimeZone ZONE = DateTimeZone.forID("Europe/Berlin");

    private static final DateTimeFormatter FMT_CLOCK = DateTimeFormat.forPattern("HH:mm");

    private static final DateTimeFormatter FMT_DATE = DateTimeFormat.forPattern("dd.MM");

    private static final DateTimeFormatter FMT_DATE_YEAR = DateTimeFormat.forPattern("dd.MM.yyyy");

    private String[] FORMAT_ADS = { "heute", "gestern", "um", "Uhr" };

    private String[] WEEKDAYS = { "Montag", "Dienstag", "Mittwoch", "Donnerstag", "Freitag", "Samstag", "Sonntag" };

    private final LanguageFormat langFormat;

    private final boolean opened;

    public SpeakingDateTransformer(final LanguageFormat format, final boolean opened) {
        langFormat = format;
        this.opened = opened;

        if (langFormat != null) {
            switch (langFormat) {
            case GERMAN:
                FORMAT_ADS = new String[] { "heute", "gestern", "um", "Uhr" };
                WEEKDAYS = new String[] { "Montag", "Dienstag", "Mittwoch", "Donnerstag", "Freitag", "Samstag",
                        "Sonntag" };
                break;
            case ENGLISH:
                FORMAT_ADS = new String[] { "Today", "Yesterday", "at", "o'clock" };
                WEEKDAYS = new String[] { "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday",
                        "Sunday" };
                break;
            }
        }
    }

    /* (non-Javadoc)
     * @see flexjson.transformer.Transformer#transform(java.lang.Object)
     */
    @Override
    public void transform(final Object longObject) {
        final Long value = (Long) longObject;
        if (langFormat == null) {
            getContext().write(value.toString());
        } else {
            final Date date = new Date(value.longValue());
            getContext().writeQuoted(this.createTimeFormat(date));
        }
    }

    public String createTimeFormat(final Date date) {
        switch (langFormat) {
        case GERMAN:
            if (opened) {
                return "Der Space  ist seit " + this.format(date) + " ge\u00f6ffnet";
            } else {
                return "Der Space  ist seit " + this.format(date) + " geschlossen";
            }
        default:
            if (opened) {
                return "The space is open since " + this.format(date);
            } else {
                return "The space is closed since " + this.format(date);
            }
        }
    }

    public String format(final Date date) {
        final DateTime dateTime = new DateTime(date, ZONE);
        final String result;
        if (isToday(dateTime)) {
            result = FORMAT_ADS[0] + ", " + FMT_CLOCK.print(dateTime) + " " + FORMAT_ADS[3];
        } else if (isYesterday(dateTime)) {
            result = FORMAT_ADS[1] + ", " + FMT_CLOCK.print(dateTime) + " " + FORMAT_ADS[3];
        } else if (isMax6DaysAgo(dateTime)) {
            result = WEEKDAYS[dateTime.getDayOfWeek() - 1] + ", " + FMT_CLOCK.print(dateTime) + " " + FORMAT_ADS[3];
        } else if (isThisYear(dateTime)) {
            result = FMT_DATE.print(dateTime) + " " + FORMAT_ADS[2] + " " + FMT_CLOCK.print(dateTime) + " "
                    + FORMAT_ADS[3];
        } else {
            result = FMT_DATE_YEAR.print(dateTime) + " " + FORMAT_ADS[2] + " " + FMT_CLOCK.print(dateTime) + " "
                    + FORMAT_ADS[3];
        }

        return result;
    }

    private boolean isThisYear(final DateTime dateTime) {
        final DateTime now = new DateTime(ZONE);
        return now.getYear() == dateTime.getYear();
    }

    private boolean isMax6DaysAgo(final DateTime dateTime) {
        final DateTime now = new DateTime(ZONE);
        return now.getDayOfYear() - dateTime.getDayOfYear() < 7;
    }

    private boolean isToday(final DateTime dateTime) {
        final DateTime now = new DateTime(ZONE);
        return now.getDayOfYear() == dateTime.getDayOfYear();
    }

    private boolean isYesterday(final DateTime dateTime) {
        final DateTime now = new DateTime(ZONE);
        return now.getDayOfYear() == dateTime.getDayOfYear() + 1;
    }
}