JsonCalendarSerializerAdapter.java

package no.niths.domain.adapter;

import java.io.IOException;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;

import no.niths.common.constants.MiscConstants;

import org.codehaus.jackson.JsonGenerationException;
import org.codehaus.jackson.JsonGenerator;
import org.codehaus.jackson.map.JsonSerializer;
import org.codehaus.jackson.map.SerializerProvider;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
 * Class JsonCalendarSerializerAdapter used too parse a Calendar too a String
 */
public class JsonCalendarSerializerAdapter extends JsonSerializer<Calendar> {

    private static final Logger logger = LoggerFactory
            .getLogger(JsonCalendarSerializerAdapter.class);

    private DateFormat df = new SimpleDateFormat(MiscConstants.CALENDAR_FORMAT);

    @Override
    public void serialize(Calendar calendar, JsonGenerator gen,
            SerializerProvider provider) {
        try {
            if(calendar!= null){
                gen.writeString(df.format(calendar.getTime()));
            }else{
                gen.writeNull();
            }
        } catch (JsonGenerationException e) {
            logger.error(e.getMessage(),e);
            e.printStackTrace();
        } catch (IOException e) {
            logger.error(e.getMessage(),e);
            e.printStackTrace();
        }
    }
}