| package edu.uci.ics.asterix.dataflow.data.nontagged.serde; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| |
| import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider; |
| import edu.uci.ics.asterix.om.base.ADuration; |
| import edu.uci.ics.asterix.om.base.AMutableDuration; |
| import edu.uci.ics.asterix.om.base.temporal.ADurationParserFactory; |
| import edu.uci.ics.asterix.om.types.BuiltinType; |
| import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer; |
| import edu.uci.ics.hyracks.api.exceptions.HyracksDataException; |
| |
| public class ADurationSerializerDeserializer implements ISerializerDeserializer<ADuration> { |
| |
| private static final long serialVersionUID = 1L; |
| |
| public static final ADurationSerializerDeserializer INSTANCE = new ADurationSerializerDeserializer(); |
| @SuppressWarnings("unchecked") |
| private static final ISerializerDeserializer<ADuration> durationSerde = AqlSerializerDeserializerProvider.INSTANCE |
| .getSerializerDeserializer(BuiltinType.ADURATION); |
| private static final AMutableDuration aDuration = new AMutableDuration(0, 0); |
| |
| private ADurationSerializerDeserializer() { |
| } |
| |
| @Override |
| public ADuration deserialize(DataInput in) throws HyracksDataException { |
| try { |
| return new ADuration(in.readInt(), in.readLong()); |
| } catch (IOException e) { |
| throw new HyracksDataException(e); |
| } |
| } |
| |
| @Override |
| public void serialize(ADuration instance, DataOutput out) throws HyracksDataException { |
| try { |
| out.writeInt(instance.getMonths()); |
| out.writeLong(instance.getMilliseconds()); |
| } catch (IOException e) { |
| throw new HyracksDataException(e); |
| } |
| } |
| |
| public static void parse(String duration, DataOutput out) throws HyracksDataException { |
| try { |
| ADurationParserFactory.parseDuration(duration, 0, duration.length(), aDuration); |
| durationSerde.serialize(aDuration, out); |
| } catch (Exception e) { |
| throw new HyracksDataException(e); |
| } |
| } |
| |
| /** |
| * Get the year-month field of the duration as an integer number of days. |
| * |
| * @param data |
| * @param offset |
| * @return |
| */ |
| public static int getYearMonth(byte[] data, int offset) { |
| return AInt32SerializerDeserializer.getInt(data, offset); |
| } |
| |
| /** |
| * Get the day-time field of the duration as an long integer number of milliseconds. |
| * |
| * @param data |
| * @param offset |
| * @return |
| */ |
| public static long getDayTime(byte[] data, int offset) { |
| return AInt64SerializerDeserializer.getLong(data, offset + 4); |
| } |
| } |