de.cubeisland.engine.core.util.converter.DurationConverter.java Source code

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Here is the source code for de.cubeisland.engine.core.util.converter.DurationConverter.java

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/**
 * This file is part of CubeEngine.
 * CubeEngine is licensed under the GNU General Public License Version 3.
 *
 * CubeEngine 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.
 *
 * CubeEngine 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 CubeEngine.  If not, see <http://www.gnu.org/licenses/>.
 */
package de.cubeisland.engine.core.util.converter;

import de.cubeisland.engine.converter.ConversionException;
import de.cubeisland.engine.converter.converter.SimpleConverter;
import de.cubeisland.engine.converter.node.IntNode;
import de.cubeisland.engine.converter.node.Node;
import de.cubeisland.engine.converter.node.StringNode;
import org.joda.time.Duration;
import org.joda.time.format.PeriodFormatter;
import org.joda.time.format.PeriodFormatterBuilder;

public class DurationConverter extends SimpleConverter<Duration> {
    private final PeriodFormatter formatter;

    public DurationConverter() {
        this.formatter = new PeriodFormatterBuilder().appendWeeks().appendSuffix("w").appendSeparator(" ")
                .appendDays().appendSuffix("d").appendSeparator(" ").appendHours().appendSuffix("h")
                .appendSeparator(" ").appendMinutes().appendSuffix("m").appendSeparator(" ").appendSeconds()
                .appendSuffix("s").appendSeparator(".").appendMillis().toFormatter();
    }

    @Override
    public Node toNode(Duration object) throws ConversionException {
        return StringNode.of(this.formatter.print(object.toPeriod()));
    }

    @Override
    public Duration fromNode(Node node) throws ConversionException {
        try {
            if (node instanceof IntNode) {
                return new Duration(((IntNode) node).getValue().longValue());
            }
            return this.formatter.parsePeriod(node.asText()).toStandardDuration();
        } catch (Exception e) {
            throw ConversionException.of(this, node, "Unknown error while parsing Duration!", e);
        }
    }
}