XmlCalendarAdapter.java

package no.niths.domain.adapter;

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.GregorianCalendar;

import javax.xml.bind.annotation.adapters.XmlAdapter;

import no.niths.application.rest.exception.CustomParseException;
import no.niths.common.constants.MiscConstants;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
 * Class XmlCalendarAdapter used too parse a String too a Calendar (GregorianCalendar)
 * or a Calendar too a String
 */
public class XmlCalendarAdapter extends XmlAdapter<String, Calendar> {

    private DateFormat df = new SimpleDateFormat(MiscConstants.CALENDAR_FORMAT);
    private Logger logger = LoggerFactory
            .getLogger(XmlCalendarAdapter.class);
    @Override
    public Calendar unmarshal(String date) {

        Calendar calendar = new GregorianCalendar();
        try {
            calendar.setTime(df.parse(date));
            return calendar;
        } catch (ParseException px) {
            logger.error(px.getMessage(),px);
            throw new CustomParseException("Invalid syntacs! Valid syntax : "
                    + MiscConstants.CALENDAR_FORMAT + " ErrorOffset:"
                    + px.getErrorOffset());
        }
        

    }

    @Override
    public String marshal(Calendar calendar) throws ParseException {
        return df.format(calendar.getTime());
    }

}