name.martingeisse.admin.application.converter.LocalDateConverter.java Source code

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Here is the source code for name.martingeisse.admin.application.converter.LocalDateConverter.java

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/**
 * Copyright (c) 2011 Martin Geisse
 *
 * This file is distributed under the terms of the MIT license.
 */

package name.martingeisse.admin.application.converter;

import java.util.Locale;

import org.apache.wicket.util.convert.ConversionException;
import org.apache.wicket.util.convert.IConverter;
import org.joda.time.LocalDate;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;

/**
 * Converts Joda {@link LocalDate} objects.
 */
public class LocalDateConverter implements IConverter<LocalDate> {

    /* (non-Javadoc)
     * @see org.apache.wicket.util.convert.IConverter#convertToObject(java.lang.String, java.util.Locale)
     */
    @Override
    public LocalDate convertToObject(String value, Locale locale) {
        try {
            DateTimeFormatter formatter = getFormatter(locale);
            return formatter.parseLocalDate(value);
        } catch (Exception e) {
            throw new ConversionException(e);
        }
    }

    /* (non-Javadoc)
     * @see org.apache.wicket.util.convert.IConverter#convertToString(java.lang.Object, java.util.Locale)
     */
    @Override
    public String convertToString(LocalDate value, Locale locale) {
        try {
            DateTimeFormatter formatter = getFormatter(locale);
            return formatter.print(value);
        } catch (Exception e) {
            throw new ConversionException(e);
        }
    }

    /**
     * Obtains the formatter to use for the specified locale.
     */
    private static DateTimeFormatter getFormatter(Locale locale) {
        return DateTimeFormat.mediumDate().withLocale(locale);
    }

}