private KafkaTopic TopicFromResponse(OffsetResponse offsetResponse)
{
string topicName = offsetResponse.Topics()[0];
int partitionId = offsetResponse.Partitions(topicName)[0];
short errorCode = offsetResponse.Errorcode(topicName, partitionId);
if ( errorCode != 0)
{
if (errorCode == 3)
throw new NoTopicException(topicName);
throw new KafkaException(errorCode);
}
long offset = offsetResponse.Offsets(topicName, partitionId)[0];
var kafkaTopic = new KafkaTopic(topicName, partitionId, offset);
return kafkaTopic;
}
/// <summary>
/// Get a list of valid offsets (up to maxSize) before the given time.
/// </summary>
/// <param name="request">The offset request.</param>
/// <returns>List of offsets, in descending order.</returns>
public OffsetResponse GetOffsetResponseBefore(OffsetRequest request)
{
using (var connection = new KafkaConnection(server, port))
{
connection.Write(request.GetRequestBytes().ToArray());
int dataLength = BitConverter.ToInt32(BitWorks.ReverseBytes(connection.Read(4)), 0);
if (dataLength == 0)
return null;
byte[] data = connection.Read(dataLength);
var offsetResponse = new OffsetResponse(data);
return offsetResponse;
}
}
