net.yadaframework.web.YadaJsonDateSimpleSerializer Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of yadaweb Show documentation

Some useful tasks for the Yada Framework

There is a newer version: 0.7.7.R4

package net.yadaframework.web;
import java.io.IOException;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;

import org.apache.commons.lang3.time.FastDateFormat;
import org.springframework.context.i18n.LocaleContextHolder;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;

/**
 * Date serializer that produces a date in the format "yyyy-MM-dd" using the thread's timezone and locale
 *
 */
public class YadaJsonDateSimpleSerializer extends JsonSerializer {
	
	@Override
	public void serialize(Date date, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException, JsonProcessingException {
		if (date!=null) {
			Locale locale = LocaleContextHolder.getLocale();
			TimeZone timeZone = LocaleContextHolder.getTimeZone();
			FastDateFormat fastDateFormat = FastDateFormat.getInstance("yyyy-MM-dd", timeZone, locale);
			jsonGenerator.writeString(fastDateFormat.format(date));
		} else {
			jsonGenerator.writeString("");
		}
	}
}