com.facebook.presto.jdbc.internal.jackson.datatype.joda.ser.LocalDateTimeSerializer Maven / Gradle / Ivy

package com.facebook.presto.jdbc.internal.jackson.datatype.joda.ser;

import java.io.IOException;

import com.facebook.presto.jdbc.internal.joda.time.*;

import com.facebook.presto.jdbc.internal.jackson.core.*;
import com.facebook.presto.jdbc.internal.jackson.databind.SerializationFeature;
import com.facebook.presto.jdbc.internal.jackson.databind.SerializerProvider;
import com.facebook.presto.jdbc.internal.jackson.datatype.joda.cfg.FormatConfig;
import com.facebook.presto.jdbc.internal.jackson.datatype.joda.cfg.JacksonJodaDateFormat;

public class LocalDateTimeSerializer // non final since 2.6.1
    extends JodaDateSerializerBase
{
    private static final long serialVersionUID = 1L;

    public LocalDateTimeSerializer() { this(FormatConfig.DEFAULT_LOCAL_DATETIME_PRINTER); }
    public LocalDateTimeSerializer(JacksonJodaDateFormat format) {
        super(LocalDateTime.class, format, true,
                SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
    }

    @Override
    public LocalDateTimeSerializer withFormat(JacksonJodaDateFormat formatter) {
        return (_format == formatter) ? this : new LocalDateTimeSerializer(formatter);
    }

    // is there a natural "empty" value to check against?
 /*
    @Override
    public boolean isEmpty(LocalDateTime value) {
        return (value.getMillis() == 0L);
    }
    */

    @Override
    public void serialize(LocalDateTime value, JsonGenerator gen, SerializerProvider provider)
        throws IOException
    {
        if (_useTimestamp(provider)) {
            // Timestamp here actually means an array of values
            gen.writeStartArray();
            gen.writeNumber(value.year().get());
            gen.writeNumber(value.monthOfYear().get());
            gen.writeNumber(value.dayOfMonth().get());
            gen.writeNumber(value.hourOfDay().get());
            gen.writeNumber(value.minuteOfHour().get());
            gen.writeNumber(value.secondOfMinute().get());
            gen.writeNumber(value.millisOfSecond().get());
            gen.writeEndArray();
        } else {
            gen.writeString(_format.createFormatter(provider).print(value));
        }
    }
}