public static byte[] ToBinary <K>(Windowed <K> timeKey, ISerDes <K> serializer, String topic)
{
byte[] bytes = serializer.Serialize(timeKey.Key, new Confluent.Kafka.SerializationContext(Confluent.Kafka.MessageComponentType.Key, topic));
ByteBuffer buf = ByteBuffer.Build(bytes.Length + TIMESTAMP_SIZE);
buf.Put(bytes);
buf.PutLong(timeKey.Window.StartMs);
return(buf.ToArray());
}
/// <summary>
/// Serialize an <see cref="Windowed{K}"/> instance to byte array
/// </summary>
/// <param name="data">Instance to serialize</param>
/// <param name="context">serialization context</param>
/// <returns>Return an array of byte</returns>
public override byte[] Serialize(Windowed <T> data, SerializationContext context)
{
if (data == null)
{
return(null);
}
var bytesKey = innerSerdes.Serialize(data.Key, context);
var bytes = WindowKeyHelper.ToStoreKeyBinary(bytesKey, data.Window.StartMs, 0);
return(bytes.Get);
}
/// <summary>
/// Serialize an <see cref="Windowed{K}"/> instance to byte array
/// </summary>
/// <param name="data">Instance to serialize</param>
/// <param name="context">serialization context</param>
/// <returns>Return an array of byte</returns>
public override byte[] Serialize(Windowed <T> data, SerializationContext context)
{
if (data == null)
{
return(null);
}
using var mStream = new MemoryStream();
using (var bufferStream = new BufferedStream(mStream))
{
bufferStream.Write(innerSerdes.Serialize(data.Key, context));
bufferStream.Write(BitConverter.GetBytes(data.Window.StartMs));
}
return(mStream.ToArray());
}
public static Bytes ToStoreKeyBinary <K>(Windowed <K> timeKey, int seqnum, ISerDes <K> keySerdes)
{
byte[] serializedKey = keySerdes.Serialize(timeKey.Key, new Confluent.Kafka.SerializationContext());
return(ToStoreKeyBinary(serializedKey, timeKey.Window.StartMs, seqnum));
}
public static Bytes ToStoreKeyBinary(Windowed <Bytes> timeKey, int seqnum)
{
byte[] bytes = timeKey.Key.Get;
return(ToStoreKeyBinary(bytes, timeKey.Window.StartMs, seqnum));
}
public static Windowed <K> FromStoreKey <K>(Windowed <Bytes> windowedKey, ISerDes <K> keySerdes, String topic)
{
K key = keySerdes.Deserialize(windowedKey.Key.Get, new Confluent.Kafka.SerializationContext(Confluent.Kafka.MessageComponentType.Key, topic));
return(new Windowed <K>(key, windowedKey.Window));
}
private Windowed <K> WindowedKey(Windowed <Bytes> bytesKey)
{
K key = keySerdes.Deserialize(bytesKey.Key.Get, new Confluent.Kafka.SerializationContext());
return(new Windowed <K>(key, bytesKey.Window));
}
private Windowed <K> WindowedKey(Windowed <Bytes> bytesKey)
{
K key = funcSerdesKey(bytesKey.Key.Get);
return(new Windowed <K>(key, bytesKey.Window));
}
public ValueAndTimestamp <V> Get(Windowed <K> key)
{
return(store.Fetch(key.Key, key.Window.StartMs));
}
private Windowed <K> WindowedKey(Windowed <Bytes> bytesKey)
{
K key = keySerdes.Deserialize(bytesKey.Key.Get);
return(new Windowed <K>(key, bytesKey.Window));
}
