public override StreamElement Deserialize(StreamElement reuse, IDataInputView source)
{
int tag = source.ReadByte();
if (tag == TagRecWithTimestamp)
{
var timestamp = source.ReadLong();
var value = ContainedTypeSerializer.Deserialize(source);
var reuseRecord = reuse.AsRecord <T>();
reuseRecord.Replace(value, timestamp);
return(reuseRecord);
}
else if (tag == TagRecWithoutTimestamp)
{
var value = ContainedTypeSerializer.Deserialize(source);
var reuseRecord = reuse.AsRecord <T>();
reuseRecord.Replace(value);
return(reuseRecord);
}
else if (tag == TagWatermark)
{
return(new Watermark(source.ReadLong()));
}
else if (tag == TagLatencyMarker)
{
return(new LatencyMarker(source.ReadLong(), new OperatorId(source.ReadLong(), source.ReadLong()), source.ReadInt()));
}
else
{
throw new IOException("Corrupt stream, found tag: " + tag);
}
}
public override void Serialize(StreamElement value, IDataOutputView target)
{
if (value.IsRecord)
{
var record = value.AsRecord <T>();
if (record.HasTimestamp)
{
target.Write(TagRecWithTimestamp);
target.WriteLong(record.Timestamp);
}
else
{
target.Write(TagRecWithoutTimestamp);
}
ContainedTypeSerializer.Serialize(record.Value, target);
}
else if (value.IsWatermark)
{
target.Write(TagWatermark);
target.WriteLong(value.AsWatermark().Timestamp);
}
else if (value.IsStreamStatus)
{
target.Write(TagStreamStatus);
target.WriteInt(value.AsStreamStatus().Status);
}
else if (value.IsLatencyMarker)
{
target.Write(TagLatencyMarker);
target.WriteLong(value.AsLatencyMarker().MarkedTime);
target.WriteLong(value.AsLatencyMarker().OperatorId.LowerPart);
target.WriteLong(value.AsLatencyMarker().OperatorId.UpperPart);
target.WriteInt(value.AsLatencyMarker().SubTaskIndex);
}
else
{
throw new RuntimeException();
}
}
public override StreamElement Copy(StreamElement @from, StreamElement reuse)
{
throw new NotImplementedException();
}