/**
* Copyright (C) 2012-2014 the original author or authors.
*
* 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 ninja.template;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import org.ocpsoft.prettytime.PrettyTime;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import freemarker.template.SimpleDate;
import freemarker.template.SimpleScalar;
import freemarker.template.TemplateMethodModelEx;
import freemarker.template.TemplateModel;
import freemarker.template.TemplateModelException;
/**
* PrettyTime integration for Ninja-FreeMarker.
*
* @author James Moger
*
*/
public class TemplateEngineFreemarkerPrettyTimeMethod implements
TemplateMethodModelEx {
public final static Logger logger = LoggerFactory
.getLogger(TemplateEngineFreemarkerPrettyTimeMethod.class);
private final PrettyTime prettyTime;
public TemplateEngineFreemarkerPrettyTimeMethod(Locale locale) {
this.prettyTime = new PrettyTime(locale);
}
@Override
public TemplateModel exec(List args) throws TemplateModelException {
Date date = getFormattableObject(args.get(0));
String result = prettyTime.format(date);
return new SimpleScalar(result);
}
private Date getFormattableObject(Object value) {
if (value instanceof SimpleDate) {
return ((SimpleDate) value).getAsDate();
} else {
throw new RuntimeException(
"Formattable object for PrettyTime not found!");
}
}
}