private async Task <IList <TopicRouteInfo> > GetTopicRouteInfoListAsync(string topic)
{
var nameServerRemotingClient = GetAvailableNameServerRemotingClient();
if (nameServerRemotingClient == null)
{
return(null);
}
var request = new GetTopicRouteInfoRequest
{
ClientRole = _producer != null ? ClientRole.Producer : ClientRole.Consumer,
ClusterName = _setting.ClusterName,
OnlyFindMaster = _setting.OnlyFindMasterBroker,
Topic = topic
};
var data = _binarySerializer.Serialize(request);
var remotingRequest = new RemotingRequest((int)NameServerRequestCode.GetTopicRouteInfo, data);
var remotingResponse = await nameServerRemotingClient.InvokeAsync(remotingRequest, 5 * 1000);
if (remotingResponse.ResponseCode != ResponseCode.Success)
{
_logger.ErrorFormat("Get topic route info from name server failed, topic: {0}, nameServerAddress: {1}, remoting response code: {2}, errorMessage: {3}", topic, nameServerRemotingClient.ServerEndPoint.ToAddress(), remotingResponse.ResponseCode, Encoding.UTF8.GetString(remotingResponse.ResponseBody));
return(null);
}
return(_binarySerializer.Deserialize <IList <TopicRouteInfo> >(remotingResponse.ResponseBody));
}
public async Task <IList <TopicRouteInfo> > GetTopicRouteInfo(GetTopicRouteInfoRequest request)
{
using (await _asyncLock.LockAsync())
{
var returnList = new List <TopicRouteInfo>();
if (string.IsNullOrEmpty(request.ClusterName) || !_clusterDict.TryGetValue(request.ClusterName, out Cluster cluster))
{
return(returnList);
}
foreach (var brokerGroup in cluster.BrokerGroups.Values)
{
foreach (var broker in brokerGroup.Brokers.Values)
{
if (request.OnlyFindMaster && broker.BrokerInfo.BrokerRole != (int)BrokerRole.Master)
{
continue;
}
var queueList = new List <int>();
var topicQueueInfoList = broker.TopicQueueInfoList.Where(x => x.Topic == request.Topic).ToList();
if (topicQueueInfoList.Count > 0)
{
if (request.ClientRole == ClientRole.Producer)
{
queueList = topicQueueInfoList.Where(x => x.ProducerVisible).Select(x => x.QueueId).ToList();
}
else if (request.ClientRole == ClientRole.Consumer)
{
queueList = topicQueueInfoList.Where(x => x.ConsumerVisible).Select(x => x.QueueId).ToList();
}
}
else if (_nameServerController.Setting.AutoCreateTopic)
{
var queueIds = await CreateTopicOnBroker(request.Topic, broker);
queueList = queueIds.ToList();
}
returnList.Add(new TopicRouteInfo
{
BrokerInfo = broker.BrokerInfo,
QueueInfo = queueList
});
}
}
return(returnList);
}
}