/// <summary>
/// Finds and joins to channel and sends response
/// </summary>
private async Task JoinChannel(MqClient client, TmqMessage message)
{
Channel channel = _server.FindChannel(message.Target);
//if auto creation active, try to create channel
if (channel == null && _server.Options.AutoChannelCreation)
{
channel = _server.FindOrCreateChannel(message.Target);
}
if (channel == null)
{
if (message.ResponseRequired)
{
await client.SendAsync(MessageBuilder.ResponseStatus(message, KnownContentTypes.NotFound));
}
return;
}
ChannelClient found = channel.FindClient(client.UniqueId);
if (found != null)
{
if (message.ResponseRequired)
{
await client.SendAsync(MessageBuilder.ResponseStatus(message, KnownContentTypes.Ok));
}
return;
}
ClientJoinResult result = await channel.AddClient(client);
if (message.ResponseRequired)
{
switch (result)
{
case ClientJoinResult.Success:
await client.SendAsync(MessageBuilder.ResponseStatus(message, KnownContentTypes.Ok));
break;
case ClientJoinResult.Unauthorized:
await client.SendAsync(MessageBuilder.ResponseStatus(message, KnownContentTypes.Unauthorized));
break;
case ClientJoinResult.Full:
await client.SendAsync(MessageBuilder.ResponseStatus(message, KnownContentTypes.LimitExceeded));
break;
}
}
}
public async Task Handle(MqClient client, TmqMessage message)
{
//find channel and queue
Channel channel = _server.FindChannel(message.Target);
//if auto creation active, try to create channel
if (channel == null && _server.Options.AutoChannelCreation)
{
channel = _server.FindOrCreateChannel(message.Target);
}
if (channel == null)
{
if (!string.IsNullOrEmpty(message.MessageId))
{
await client.SendAsync(MessageBuilder.ResponseStatus(message, KnownContentTypes.NotFound));
}
return;
}
ChannelQueue queue = channel.FindQueue(message.ContentType);
//if auto creation active, try to create queue
if (queue == null && _server.Options.AutoQueueCreation)
{
queue = await channel.FindOrCreateQueue(message.ContentType);
}
if (queue == null)
{
if (!string.IsNullOrEmpty(message.MessageId))
{
await client.SendAsync(MessageBuilder.ResponseStatus(message, KnownContentTypes.NotFound));
}
return;
}
//consumer is trying to pull from the queue
//in false cases, we won't send any response, cuz client is pending only queue messages, not response messages
if (message.Length == 0 && message.ResponseRequired)
{
await HandlePullRequest(client, message, channel, queue);
}
//message have a content, this is the real message from producer to the queue
else
{
await HandlePush(client, message, queue);
}
}
public async Task Handle(MqClient client, TmqMessage message)
{
//priority has no role in ack message.
//we are using priority for helping receiver type recognization for better performance
if (message.HighPriority)
{
//target should be client
MqClient target = _server.FindClient(message.Target);
if (target != null)
{
await target.SendAsync(message);
return;
}
}
//find channel and queue
Channel channel = _server.FindChannel(message.Target);
if (channel == null)
{
//if high prio, dont try to find client again
if (!message.HighPriority)
{
//target should be client
MqClient target = _server.FindClient(message.Target);
if (target != null)
{
await target.SendAsync(message);
}
}
return;
}
ChannelQueue queue = channel.FindQueue(message.ContentType);
if (queue == null)
{
return;
}
await queue.AcknowledgeDelivered(client, message);
}
