br.com.caelum.vraptor.converter.jodatime.LocaleBasedJodaTimeConverter.java Source code

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Here is the source code for br.com.caelum.vraptor.converter.jodatime.LocaleBasedJodaTimeConverter.java

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/***
 * Copyright (c) 2009 Caelum - www.caelum.com.br/opensource All rights reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package br.com.caelum.vraptor.converter.jodatime;

import static com.google.common.base.Strings.isNullOrEmpty;

import java.text.ParseException;
import java.util.Locale;

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

import br.com.caelum.vraptor.core.Localization;

class LocaleBasedJodaTimeConverter {

    private final Localization localization;

    public LocaleBasedJodaTimeConverter(Localization localization) {
        this.localization = localization;
    }

    public DateTime convert(String value, DateTimeFormatter formatter) throws ParseException {
        if (isNullOrEmpty(value)) {
            return null;
        }

        return formatter.withLocale(getLocale()).parseDateTime(value);
    }

    public Locale getLocale() {
        Locale locale = localization.getLocale();
        if (locale == null) {
            locale = Locale.getDefault();
        }
        return locale;
    }
}