public static Partition FromStream(BigEndianBinaryReader stream)
{
var partition = new Partition
{
ErrorCode = stream.ReadInt16(),
PartitionId = stream.ReadInt32(),
LeaderId = stream.ReadInt32(),
Replicas = new List<int>(),
Isrs = new List<int>()
};
var numReplicas = stream.ReadInt32();
for (int i = 0; i < numReplicas; i++)
{
partition.Replicas.Add(stream.ReadInt32());
}
var numIsr = stream.ReadInt32();
for (int i = 0; i < numIsr; i++)
{
partition.Isrs.Add(stream.ReadInt32());
}
return partition;
}
private BrokerRoute TryGetRouteFromCache(string topic, Partition partition)
{
IKafkaConnection conn;
if (_brokerConnectionIndex.TryGetValue(partition.LeaderId, out conn))
{
return new BrokerRoute
{
Topic = topic,
PartitionId = partition.PartitionId,
Connection = conn
};
}
return null;
}
private BrokerRoute GetCachedRoute(string topic, Partition partition)
{
var route = TryGetRouteFromCache(topic, partition);
//leader could not be found, refresh the broker information and try one more time
if (route == null)
{
RefreshTopicMetadata(topic);
route = TryGetRouteFromCache(topic, partition);
}
if (route != null) return route;
throw new LeaderNotFoundException(string.Format("Lead broker cannot be found for parition: {0}, leader: {1}", partition.PartitionId, partition.LeaderId));
}
private BrokerRoute GetCachedRoute(string topic, Partition partition)
{
var route = TryGetRouteFromCache(topic, partition);
if (route != null) return route;
throw new LeaderNotFoundException(string.Format("Lead broker cannot be found for partition: {0}, leader: {1}", partition.PartitionId, partition.LeaderId));
}
protected bool Equals(Partition other)
{
return PartitionId == other.PartitionId;
}