/*
* 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 java.text.ParseException;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;
import org.apache.commons.lang.NotImplementedException;
import freemarker.template.TemplateDateModel;
import freemarker.template.TemplateModelException;
public class EpochMillisTemplateDateFormatFactory extends TemplateDateFormatFactory {
public static final EpochMillisTemplateDateFormatFactory INSTANCE = new EpochMillisTemplateDateFormatFactory();
private EpochMillisTemplateDateFormatFactory() {
// Defined to decrease visibility
}
@Override
public TemplateDateFormat get(int dateType, boolean zonelessInput, String params, Locale locale, TimeZone timeZone,
Environment env) throws TemplateModelException, UnknownDateTypeFormattingUnsupportedException,
InvalidFormatParametersException {
TemplateFormatUtil.checkHasNoParameters(params);
return EpochMillisTemplateDateFormat.INSTANCE;
}
private static class EpochMillisTemplateDateFormat extends TemplateDateFormat {
private static final EpochMillisTemplateDateFormat INSTANCE = new EpochMillisTemplateDateFormat();
private EpochMillisTemplateDateFormat() { }
@Override
public String format(TemplateDateModel dateModel)
throws UnformattableDateException, TemplateModelException {
return String.valueOf(TemplateFormatUtil.getNonNullDate(dateModel).getTime());
}
@Override
public boolean isLocaleBound() {
return false;
}
@Override
public boolean isTimeZoneBound() {
return false;
}
@Override
public <MO extends TemplateMarkupOutputModel> MO format(TemplateDateModel dateModel,
MarkupOutputFormat<MO> outputFormat) throws UnformattableNumberException, TemplateModelException {
throw new NotImplementedException();
}
@Override
public Date parse(String s) throws ParseException {
try {
return new Date(Long.parseLong(s));
} catch (NumberFormatException e) {
throw new ParseException("Malformed long", 0);
}
}
@Override
public String getDescription() {
return "millis since the epoch";
}
}
}