/// <summary>
/// Publishes the messages to all subscribers of the first message's type.
/// </summary>
public virtual void Publish <T>(params T[] messages)
{
if (messages == null || messages.Length == 0) // Bus.Publish<IFoo>();
{
Publish(CreateInstance <T>(m => { }));
return;
}
MessagingBestPractices.AssertIsValidForPubSub(messages[0].GetType());
var fullTypes = GetFullTypes(messages as object[]);
var eventMessage = new TransportMessage {
MessageIntent = MessageIntentEnum.Publish
};
MapTransportMessageFor(messages as object[], eventMessage);
if (MessagePublisher == null)
{
throw new InvalidOperationException("No message publisher has been registered. If you're using a transport without native support for pub/sub please enable the message driven publishing feature by calling: Feature.Enable<MessageDrivenPublisher>() in your configuration");
}
var subscribersExisted = MessagePublisher.Publish(eventMessage, fullTypes);
if (!subscribersExisted && NoSubscribersForMessage != null)
{
NoSubscribersForMessage(this, new MessageEventArgs(messages[0]));
}
}
// Will get invoked, whenever a new event is published by the Msmq publishers
// and when they notify the bridge. The bridge is a MSMQ and the publishers
// have an entry for this queue in their subscription storage.
public bool Handle(TransportMessage message)
{
var headers = message.Headers;
Type[] eventTypes =
{
Type.GetType(headers["NServiceBus.EnclosedMessageTypes"])
};
var msmqId = headers["NServiceBus.MessageId"];
// Set the Id to a deterministic guid, as Sql message Ids are Guids and
// Msmq message ids are guid\nnnn. Newer versions of NServiceBus already
// return just a guid for the messageId. So, check to see if the Id is
// a valid Guid and if not, only then create a valid Guid. This check
// is important as it affects the retries if the message is rolled back.
// If the Ids are different, then the recoverability won't know its the same message.
Guid newGuid;
if (!Guid.TryParse(msmqId, out newGuid))
{
headers["NServiceBus.MessageId"] = GuidBuilder.BuildDeterministicGuid(msmqId).ToString();
}
log.Info("Forwarding message to all the SQL subscribers via a Publish");
publisher.Publish(message, new PublishOptions(eventTypes.First()));
return(true);
}
// Will get invoked, whenever a new event is published by the Msmq publishers
// and when they notify the bridge. The bridge is a MSMQ and the publishers
// have an entry for this queue in their subscription storage.
public bool Handle(TransportMessage msmqMessage)
{
var eventTypes = ExtractEventTypes(msmqMessage.Headers);
var sqlMessage = TranslateToSqlTransportMessage(msmqMessage);
log.Info("Forwarding message to all the SQL subscribers via a Publish");
publisher.Publish(sqlMessage, new PublishOptions(eventTypes.First()));
return(true);
}
public void Handle(PositionAcquired message)
{
_price10SecondWindow.Add(message.Price);
_price13SecondWindow.Add(message.Price);
UpdateStopLossPrice();
_publisher.Publish(new SendToMeIn {
DelayInSeconds = 10, Inner = new RemoveFrom10SecondWindow {
Price = message.Price
}
});
_publisher.Publish(new SendToMeIn {
DelayInSeconds = 13, Inner = new RemoveFrom13SecondWindow {
Price = message.Price
}
});
}
protected void PublishMessage(IPublishMessages publisher, Type eventType, int i)
{
publisher.Publish(GenerateTransportMessage(i, eventType.FullName), new[] { eventType });
}
public void Publish(TransportMessage message, PublishOptions publishOptions)
{
message.Headers[SessionCopInBehavior.Header] = sessionId;
wrappedPublisher.Publish(message, publishOptions);
}
protected void PublishMessage(IPublishMessages publisher, Type eventType, int i)
{
publisher.Publish(GenerateTransportMessage(i, eventType.FullName), new[] { eventType });
}
