/*
* Copyright 2014 Attila Szegedi, Daniel Dekany, Jonathan Revusky
*
* 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 freemarker.core;
import freemarker.template.utility.DateUtil.CalendarFieldsToDateConverter;
import freemarker.template.utility.DateUtil.DateToISO8601CalendarFactory;
import freemarker.template.utility.DateUtil.TrivialCalendarFieldsToDateConverter;
import freemarker.template.utility.DateUtil.TrivialDateToISO8601CalendarFactory;
abstract class ISOLikeTemplateDateFormatFactory extends TemplateDateFormatFactory {
private static final Object DATE_TO_CAL_CONVERTER_KEY = new Object();
private static final Object CAL_TO_DATE_CONVERTER_KEY = new Object();
protected ISOLikeTemplateDateFormatFactory() { }
public DateToISO8601CalendarFactory getISOBuiltInCalendar(Environment env) {
DateToISO8601CalendarFactory r = (DateToISO8601CalendarFactory) env.getCustomState(DATE_TO_CAL_CONVERTER_KEY);
if (r == null) {
r = new TrivialDateToISO8601CalendarFactory();
env.setCustomState(DATE_TO_CAL_CONVERTER_KEY, r);
}
return r;
}
public CalendarFieldsToDateConverter getCalendarFieldsToDateCalculator(Environment env) {
CalendarFieldsToDateConverter r = (CalendarFieldsToDateConverter) env.getCustomState(CAL_TO_DATE_CONVERTER_KEY);
if (r == null) {
r = new TrivialCalendarFieldsToDateConverter();
env.setCustomState(CAL_TO_DATE_CONVERTER_KEY, r);
}
return r;
}
}