/// <summary>
/// Parse the response bytes.
/// </summary>
/// <param name="response">The bytes of the response.</param>
public override void Parse(byte[] response)
{
//---------------------------------------------------\\
// OffsetResponse => ReplicaId [TopicName[PartitionOffsets]]
// PartitionOffsets => Partition ErrorCode[Offset]
// Partition => int32
// ErrorCode => int16
// Offset => int64
//---------------------------------------------------\\
using (var stream = new MemoryStream(response))
{
var reader = new BinaryReader(stream);
// size of topic array
var topicInfoSizeBytes = new byte[4];
reader.Read(topicInfoSizeBytes, 0, 4);
var numberOfTopicInfos = KafkaProtocolPrimitiveType.GetInt32(topicInfoSizeBytes);
this.TopicInfos = new KafkaProtocolOffsetListResponseTopicInfo[numberOfTopicInfos];
for (int i = 0; i < numberOfTopicInfos; i++)
{
this.TopicInfos[i] = new KafkaProtocolOffsetListResponseTopicInfo();
// topic name
var topicNameSizeBytes = new byte[2];
reader.Read(topicNameSizeBytes, 0, 2);
var topicNameSize = KafkaProtocolPrimitiveType.GetInt16(topicNameSizeBytes);
var topicNameBytes = new byte[topicNameSize];
reader.Read(topicNameBytes, 0, topicNameSize);
this.TopicInfos[i].TopicName = Encoding.UTF8.GetString(topicNameBytes);
// size of partition offset array
var partitionInfoSizeBytes = new byte[4];
reader.Read(partitionInfoSizeBytes, 0, 4);
var partitionInfoSize = KafkaProtocolPrimitiveType.GetInt32(partitionInfoSizeBytes);
this.TopicInfos[i].PartitionInfos = new KafkaProtocolOffsetListResponsePartitionInfo[partitionInfoSize];
for (int j = 0; j < partitionInfoSize; j++)
{
this.TopicInfos[i].PartitionInfos[j] = new KafkaProtocolOffsetListResponsePartitionInfo();
// partition id
var partitionIdBytes = new byte[4];
reader.Read(partitionIdBytes, 0, 4);
this.TopicInfos[i].PartitionInfos[j].Partition = KafkaProtocolPrimitiveType.GetInt32(partitionIdBytes);
// error code
var errorCodeBytes = new byte[2];
reader.Read(errorCodeBytes, 0, 2);
this.TopicInfos[i].PartitionInfos[j].ErrorCode = KafkaProtocolPrimitiveType.GetInt16(errorCodeBytes);
// size of offset array
var offsetSizeBytes = new byte[4];
reader.Read(offsetSizeBytes, 0, 4);
var offsetSize = KafkaProtocolPrimitiveType.GetInt32(offsetSizeBytes);
this.TopicInfos[i].PartitionInfos[j].Offset = new long[offsetSize];
for (int k = 0; k < offsetSize; k++)
{
var offsetBytes = new byte[8];
reader.Read(offsetBytes, 0, 8);
this.TopicInfos[i].PartitionInfos[j].Offset[k] = KafkaProtocolPrimitiveType.GetInt64(offsetBytes);
}
}
}
}
}
/// <summary>
/// Parse the response bytes.
/// </summary>
/// <param name="response">The bytes of the response.</param>
public override void Parse(byte[] response)
{
using (var stream = new MemoryStream(response))
{
var reader = new BinaryReader(stream);
var topicInfoSizeBytes = new byte[4];
reader.Read(topicInfoSizeBytes, 0, 4);
var numOfTopicInfo = KafkaProtocolPrimitiveType.GetInt32(topicInfoSizeBytes);
this.TopicInfos = new KafkaProtocolOffsetFetchResponseTopicInfo[numOfTopicInfo];
for (int i = 0; i < numOfTopicInfo; i++)
{
this.TopicInfos[i] = new KafkaProtocolOffsetFetchResponseTopicInfo();
// topic name
var topicNameSizeBytes = new byte[2];
reader.Read(topicNameSizeBytes, 0, 2);
var topicNameSize = KafkaProtocolPrimitiveType.GetInt16(topicNameSizeBytes);
var topicNameBytes = new byte[topicNameSize];
reader.Read(topicNameBytes, 0, topicNameSize);
var topicName = Encoding.UTF8.GetString(topicNameBytes);
this.TopicInfos[i].TopicName = topicName;
// [partition info]
var partitionInfoSizeBytes = new byte[4];
reader.Read(partitionInfoSizeBytes, 0, 4);
var numOfPartitionInfos = KafkaProtocolPrimitiveType.GetInt32(partitionInfoSizeBytes);
this.TopicInfos[i].PartitionInfos = new KafkaProtocolOffsetFetchResponsePartitionInfo[numOfPartitionInfos];
for (int j = 0; j < numOfPartitionInfos; j++)
{
this.TopicInfos[i].PartitionInfos[j] = new KafkaProtocolOffsetFetchResponsePartitionInfo();
// partition id
var partitionBytes = new byte[4];
reader.Read(partitionBytes, 0, 4);
var partitionId = KafkaProtocolPrimitiveType.GetInt32(partitionBytes);
this.TopicInfos[i].PartitionInfos[j].Partition = partitionId;
// offset
var offsetBytes = new byte[8];
reader.Read(offsetBytes, 0, 8);
var offset = KafkaProtocolPrimitiveType.GetInt64(offsetBytes);
this.TopicInfos[i].PartitionInfos[j].Offset = offset;
// metadata
var metadataSizeBytes = new byte[2];
reader.Read(metadataSizeBytes, 0, 2);
var metadataSize = KafkaProtocolPrimitiveType.GetInt16(metadataSizeBytes);
var metadataBytes = new byte[metadataSize];
reader.Read(metadataBytes, 0, metadataSize);
var metadata = Encoding.UTF8.GetString(metadataBytes);
this.TopicInfos[i].PartitionInfos[j].Metadata = metadata;
// error code
var errorCodeBytes = new byte[2];
reader.Read(errorCodeBytes, 0, 2);
var errorCode = KafkaProtocolPrimitiveType.GetInt16(errorCodeBytes);
this.TopicInfos[i].PartitionInfos[j].ErrorCode = errorCode;
}
}
}
}