it.d4nguard.rgrpg.util.dynacast.adapters.DateTimeAdapter.java Source code

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Here is the source code for it.d4nguard.rgrpg.util.dynacast.adapters.DateTimeAdapter.java

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// RG-RPG is a Java-based text, roleplaying-gal game, in which you
// have to carry many girls. The RG-RPG acronym is a recursive one and
// it means "RG-RPG is a Gal Role playing game Pointing on Girls."
// Copyright (C) 2013 by Alessandro Accardo <julius8774@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 2 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 it.d4nguard.rgrpg.util.dynacast.adapters;

import it.d4nguard.rgrpg.util.StringUtils;
import it.d4nguard.rgrpg.util.Triplet;

import java.util.Locale;

import org.joda.time.DateMidnight;
import org.joda.time.DateTime;
import org.joda.time.Instant;
import org.joda.time.MutableDateTime;
import org.joda.time.ReadableInstant;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;
import org.joda.time.format.ISODateTimeFormat;

/**
 * Implements a {@link SimpleAdapter} of {@link ReadableInstant}, an interface
 * of the joda.time project.<br>
 * Currently it converts:<br>
 * <ul>
 * <li>{@link DateTime}</li>
 * <li>{@link DateMidnight}</li>
 * <li>{@link Instant}</li>
 * <li>{@link MutableDateTime}</li>
 * </ul>
 * The value must be a string formatted according to
 * {@link ISODateTimeFormat#localDateOptionalTimeParser()}.<br>
 * <br>
 * Optionally in the value you can specify a pattern of date and/or time in
 * order to pass a custom formatted value.<br>
 * Passing a pattern for date and/or time can be done by appending to the value
 * the string below:<br>
 * <b>{some custom formatted date}[{the pattern of your choice according to</b>
 * {@link DateTimeFormat#forPattern(String)}<b>]</b><br>
 * That is: the value, opened square, the pattern, closed square, no spaces.
 * 
 * @author kLeZ-hAcK
 */
public class DateTimeAdapter extends SimpleAdapter<ReadableInstant> {
    /**
     * {@inheritDoc}
     */
    @Override
    public ReadableInstant adapt(String value) {
        // value is a string formatted as: "07/04/1987[dd/MM/yyyy]"
        String date = "";
        DateTimeFormatter fmt;
        Triplet<String, String, String> tri = StringUtils.getBetween(value, '[', ']');
        date = tri.getLeft();
        if (tri.hasCenter())
            fmt = DateTimeFormat.forPattern(tri.getCenter());
        else
            fmt = ISODateTimeFormat.localDateOptionalTimeParser();
        fmt = fmt.withLocale(Locale.getDefault());
        if (getType().equals(DateTime.class))
            return DateTime.parse(date, fmt);
        else if (getType().equals(DateMidnight.class))
            return DateMidnight.parse(date, fmt);
        else if (getType().equals(Instant.class))
            return Instant.parse(date, fmt);
        else if (getType().equals(MutableDateTime.class))
            return MutableDateTime.parse(date, fmt);
        else
            throw new UnsupportedOperationException("type");
    }
}