internal static Task Ack(this IMessageBus bus, string acker, string commandId)
{
// Prepare the ack
var message = new Message(acker, AckSubscriber.Signal, null);
message.CommandId = commandId;
message.IsAck = true;
return bus.Publish(message);
}
public override Task Publish(Message message)
{
Counters.MessageBusMessagesPublishedTotal.Increment();
Counters.MessageBusMessagesPublishedPerSec.Increment();
// TODO: Implement message batching here
return Send(new[] { message });
}
public static Message ReadFrom(Stream stream)
{
var message = new Message();
var binaryReader = new BinaryReader(stream);
message.Source = binaryReader.ReadString();
message.Key = binaryReader.ReadString();
int bytes = binaryReader.ReadInt32();
message.Value = new ArraySegment<byte>(binaryReader.ReadBytes(bytes));
message.CommandId = binaryReader.ReadString();
message.WaitForAck = binaryReader.ReadBoolean();
message.IsAck = binaryReader.ReadBoolean();
message.Filter = binaryReader.ReadString();
return message;
}
protected ulong Save(Message message)
{
if (message == null)
{
throw new ArgumentNullException("message");
}
// GetTopic will return a topic for the given key. If topic exists and is Dying,
// it will revive it and mark it as NoSubscriptions
Topic topic = GetTopic(message.Key);
// Mark the topic as used so it doesn't immediately expire (if it was in that state before).
topic.MarkUsed();
return topic.Store.Add(message);
}
/// <summary>
/// Publishes a new message to the specified event on the bus.
/// </summary>
/// <param name="message">The message to publish.</param>
public virtual Task Publish(Message message)
{
if (message == null)
{
throw new ArgumentNullException("message");
}
Topic topic;
if (Topics.TryGetValue(message.Key, out topic))
{
topic.Store.Add(message);
ScheduleTopic(topic);
}
Counters.MessageBusMessagesPublishedTotal.Increment();
Counters.MessageBusMessagesPublishedPerSec.Increment();
return TaskAsyncHelper.Empty;
}
