/// <summary>
/// Encode a request for metadata about topic and broker information.
/// </summary>
/// <param name="request">The MetaDataRequest to encode.</param>
/// <returns>Encoded byte[] representing the request.</returns>
/// <remarks>Format: (MessageSize), Header, ix(hs)</remarks>
private byte[] EncodeMetadataRequest(MetadataRequest request)
{
if (request.Topics == null)
{
request.Topics = new List <string>();
}
using (var message = EncodeHeader(request)
.Pack(request.Topics.Count)
.Pack(request.Topics, StringPrefixEncoding.Int16))
{
return(message.Payload());
}
}
/// <summary>
/// Encode a request for metadata about topic and broker information.
/// </summary>
/// <param name="request">The MetaDataRequest to encode.</param>
/// <returns>Encoded byte[] representing the request.</returns>
/// <remarks>Format: (MessageSize), Header, ix(hs)</remarks>
private byte[] EncodeMetadataRequest(MetadataRequest request)
{
var message = new WriteByteStream();
if (request.Topics == null)
{
request.Topics = new List <string>();
}
message.Pack(EncodeHeader(request)); //header
message.Pack(request.Topics.Count.ToBytes());
message.Pack(request.Topics.Select(x => x.ToInt16SizedBytes()).ToArray());
message.Prepend(message.Length().ToBytes());
return(message.Payload());
}
/// <summary>
/// Encode a request for metadata about topic and broker information.
/// </summary>
/// <param name="request">The MetaDataRequest to encode.</param>
/// <returns>Encoded byte[] representing the request.</returns>
/// <remarks>Format: (PayloadSize), Header, ix(hs)</remarks>
private KafkaDataPayload EncodeMetadataRequest(MetadataRequest request)
{
if (request.Topics == null)
{
request.Topics = new List <string>();
}
using (var message = EncodeHeader(request)
.Pack(request.Topics.Count)
.Pack(request.Topics, StringPrefixEncoding.Int16))
{
return(new KafkaDataPayload
{
Buffer = message.Payload(),
CorrelationId = request.CorrelationId,
ApiKey = ApiKey
});
}
}
