Add Java 8 Date Time support to MongoDB Serialization

MongoJsr310.java

import com.guestful.jsr310.Jsr310Extensions;
import com.guestful.jsr310.ZonedInterval;
import org.bson.BSON;

import java.time.*;
import java.util.Date;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.function.Function;

/**
 * @author Mathieu Carbou ([email protected])
 * @date 2014-05-14
 */
public class MongoJsr310 {

    public static void addJsr310EncodingHook() {
        hook(DayOfWeek.class, Jsr310Extensions::getShortName);
        hook(Month.class, Jsr310Extensions::getShortName);
        hook(ZonedDateTime.class, o -> Date.from(o.toInstant()));
        hook(LocalTime.class, LocalTime::toString);
        hook(LocalDate.class, LocalDate::toString);
        hook(ZoneId.class, ZoneId::getId);
        hook(ZonedInterval.class, o -> {
            Map<String, ZonedDateTime> map = new LinkedHashMap<>();
            map.put("start", o.getStart());
            map.put("end", o.getEnd());
            return map;
        });
    }

    private static <T> void hook(Class<T> type, Function<T, Object> fn) {
        BSON.addEncodingHook(type, o -> type.isInstance(o) ? fn.apply(type.cast(o)) : o);
    }

}