public MessageContext(MessageMetaData meta, IEndpoint endpoint, MessagingService messagingService, MessageTypeProperties props = null)
{
MetaData = meta;
Endpoint = endpoint;
MessagingService = messagingService;
Props = props;
}
public Task Dispatch(IIntegrationMessage message, MessageMetaData metaData = null, IOutboxSession outbox = null)
{
var endpoint = MessagingMap.FindEndpoint(message) ??
throw new ApplicationException($"Unable to dispatch message. Type: {message.GetType()} Message Type: {message.MessageType}");
return(Dispatch(message, metaData, endpoint, outbox));
}
public Task SendSynchronously(IIntegrationCommand command, MessageMetaData metaData = null)
{
metaData = metaData ?? new MessageMetaData();
var endpoint = MessagingMap.FindEndpoint(command);
_setReplyTo(endpoint, command, metaData);
return(Dispatch(command, metaData));
}
public Task SendSynchronously(string messageTypeIdenfifier, byte[] command, MessageMetaData metaData = null)
{
metaData = metaData ?? new MessageMetaData();
var endpoint = MessagingMap.FindEndpoint(messageTypeIdenfifier);
_setReplyTo(endpoint, null, metaData);
return(Dispatch(new WrappedCommand(messageTypeIdenfifier, command), metaData, endpoint));
}
/************ Message Dispatching ***********/
public Task Send(IIntegrationCommand command, IOutboxSession outbox, MessageMetaData metaData = null)
{
metaData = metaData ?? new MessageMetaData();
var endpoint = MessagingMap.FindEndpoint(command);
_setReplyTo(endpoint, command, metaData);
return(Dispatch(command, metaData, outbox));
}
/// <summary>
/// Send a serialized message to an endpoint bypassing the outbound pipeline
/// useful for services relay messages like the outbox
///</summary>
public Task DispatchCore(string messageTypeIdentifier, byte[] message, MessageMetaData metaData, IEndpoint endpoint)
{
if (message == null)
{
throw new ArgumentNullException(nameof(message));
}
if (endpoint == null)
{
throw new ArgumentNullException(nameof(endpoint));
}
return(endpoint.Dispatch(messageTypeIdentifier, message, metaData));
}
public Task Dispatch(IIntegrationMessage message, MessageMetaData metaData, IEndpoint endpoint, IOutboxSession outboxSession = null)
{
if (message == null)
{
throw new ArgumentNullException(nameof(message));
}
if (endpoint == null)
{
throw new ArgumentNullException(nameof(endpoint));
}
OutboundMessagePipeline messagePipeline = null;
if (_endpointOutboundPipeline.ContainsKey(endpoint))
{
messagePipeline = _endpointOutboundPipeline[endpoint];
}
else
{
messagePipeline = new OutboundMessagePipeline(endpoint.Settings.OutboundIntegrationFilters, endpoint.Settings.OutboundTransportFilters);
_endpointOutboundPipeline[endpoint] = messagePipeline;
}
var resultContext = messagePipeline.Process(new IntegrationMessageFilterContext(message, metaData, endpoint, FilterDirection.Outbound, null));
if (outboxSession != null)//dispatch through the outbox
{
OutboxDispatchOptions options = new OutboxDispatchOptions()
{
};
if (metaData != null)
{
if (metaData.DispatchDelay.HasValue && !endpoint.SupportsDelayedDispatch)
{
options.Delay = metaData.DispatchDelay;
options.SkipTransientDispatch = true; // for safety because we set delay
}
else
{
options.SkipTransientDispatch = metaData.SkipTransientDispatch;
}
options.ExpiresAtUtc = metaData.ExpiresAtUtc;
}
return(outboxSession.Dispatch(message.MessageType, resultContext.TransportMessage.Data, resultContext.TransportMessage.MetaData, endpoint, options));
}
//dispatch to the endpoint
return(DispatchCore(message.MessageType, resultContext.TransportMessage.Data, resultContext.TransportMessage.MetaData, endpoint));
}
public void PopulateForReplyTo(MessageMetaData commandMetaData)
{
if (commandMetaData == null)
{
return;
}
if (this.SessionId == null)
{
this.SessionId = commandMetaData.SessionId;
}
if (this.CorrelationId == null)
{
this.CorrelationId = commandMetaData.CorrelationId;
}
}
/// <summary>
/// Send a serialized message to an endpoint bypassing the outbound pipeline
/// useful for services relay messages like the outbox
/// </summary>
/// <param name="messageTypeIdentifier"></param>
/// <param name="message"></param>
/// <param name="metaData"></param>
/// <param name="endpointName"></param>
/// <returns></returns>
public Task DispatchCore(string messageTypeIdentifier, byte[] message, MessageMetaData metaData, string endpointName, bool isTransient = false)
{
var endpoint = endpointName != null?MessagingMap.FindEndpointByName(endpointName) : MessagingMap.FindEndpoint(messageTypeIdentifier);
if (endpoint == null)
{
throw new ApplicationException($"Unable to dispatch message. Endpoint not found. MessageTypeIdentifier: {messageTypeIdentifier}. Endpoint: {endpointName}");
}
if (isTransient && metaData != null)
{
if (metaData.SkipTransientDispatch)
{
throw new ApplicationException($"Unable to dispatch transient message. SkipTransient was set to True. MessageTypeIdentifier: {messageTypeIdentifier}. Endpoint: {endpointName}");
}
if (metaData.DispatchDelay.HasValue && !endpoint.SupportsDelayedDispatch)
{
throw new ApplicationException($"Unable to dispatch transient message. Delay not supported by transport. MessageTypeIdentifier: {messageTypeIdentifier}. Endpoint: {endpointName}");
}
}
return(DispatchCore(messageTypeIdentifier, message, metaData, endpoint));
}
public virtual Task Dispatch(string messageTypeIdenfifier, byte[] message, MessageMetaData metaData = null)
{
return(Transport.Dispatch(messageTypeIdenfifier, message, this, metaData));
}
object ISaga.FindKey(IIntegrationMessage message, MessageMetaData meta) => FindKey(message, meta);
/// <summary>
/// Send command using the configured outbox
/// </summary>
/// <param name="command"></param>
/// <param name="metaData"></param>
/// <returns></returns>
public Task Send(IIntegrationCommand command, MessageMetaData metaData = null)
{
return(_messagingService.Send(command, _outbox, metaData));
}
/// <summary>
/// Publish event using a preserialized form of the event using the configured outbox
/// the outbound message filter pipeline will still be used
/// </summary>
/// <param name="messageTypeIdenfier"></param>
/// <param name="event"></param>
/// <param name="options"></param>
/// <returns></returns>
public Task Publish(string messageTypeIdenfier, byte[] @event, MessageMetaData options = null)
{
return(_messagingService.Publish(messageTypeIdenfier, @event, _outbox, options));
}
/// <summary>
/// Send a preserialized Command skipping the outbox, the outbound message filter pipeline will still be honored
/// </summary>
/// <param name="messageTypeIdenfier"></param>
/// <param name="command"></param>
/// <param name="options"></param>
/// <returns></returns>
public Task SendSynchronously(string messageTypeIdenfier, byte[] command, MessageMetaData options = null)
{
return(_messagingService.SendSynchronously(messageTypeIdenfier, command, options));
}
public TransportMessage(string messageTypeIdentifier, byte[] data, MessageMetaData meta)
{
this.MessageTypeIdentifier = messageTypeIdentifier;
this.Data = data;
this.MetaData = meta;
}
public Task Reply(IIntegrationReply reply, MessageMetaData replyMetaData = null)
{
var replyToEndpoint = this.GetEndpointForReply();
return(MessagingService.Reply(reply, replyToEndpoint, this.OutboxSession, replyMetaData, this.MetaData));
}
public virtual void SetReplyToForCommand(IIntegrationCommand command, MessageMetaData meta)
{
Transport.SetReplyToForCommand(this, command, meta);
}
private void _setReplyTo(IEndpoint commandEndpoint, IIntegrationCommand command, MessageMetaData commandMeta)
{
if (commandMeta == null)
{
throw new InvalidOperationException("Command cannot be sent. Unable to set replyTo on null MessageMetaData");
}
if (!String.IsNullOrEmpty(commandMeta.ReplyTo))
{
return;
}
if (!String.IsNullOrEmpty(commandMeta.ReplyToEndpointName))
{
var replyToEndpoint = MessagingMap.FindEndpointByName(commandMeta.ReplyToEndpointName);
replyToEndpoint.SetReplyToForCommand(command, commandMeta);
return;
}
else if (MessagingMap.DefaultReplyToEndpoint != null)
{
MessagingMap.DefaultReplyToEndpoint.SetReplyToForCommand(command, commandMeta);
return;
}
throw new InvalidOperationException("Command cannot be sent because replyTo endpoint could not be determined");
}
public Task Publish(IIntegrationEvent @event, IOutboxSession outbox, MessageMetaData metaData = null)
{
var endpoint = MessagingMap.FindEndpoint(@event);
return(Dispatch(@event, metaData, outbox));
}
/// <summary>
/// Send Command skipping the outbox, the outbound message filter pipeline will still be honored
/// </summary>
/// <param name="command"></param>
/// <param name="options"></param>
/// <returns></returns>
public Task SendSynchronously(IIntegrationCommand command, MessageMetaData options = null)
{
return(_messagingService.SendSynchronously(command, options));
}
public Task Publish(string messageTypeIdenfifier, byte[] @event, IOutboxSession outbox, MessageMetaData metaData = null)
{
metaData = metaData ?? new MessageMetaData();
var endpoint = MessagingMap.FindEndpoint(messageTypeIdenfifier);
return(Dispatch(new WrappedCommand(messageTypeIdenfifier, @event), metaData, endpoint, outbox));
}
/// <summary>
/// Publish an event using the configured outbox
/// </summary>
/// <param name="event"></param>
/// <param name="options"></param>
/// <returns></returns>
public Task Publish(IIntegrationEvent @event, MessageMetaData options = null)
{
return(_messagingService.Publish(@event, _outbox, options));
}
public Task PublishSynchronously(IIntegrationEvent @event, MessageMetaData metaData = null)
{
var endpoint = MessagingMap.FindEndpoint(@event);
return(Dispatch(@event, metaData));
}
/// <summary>
/// Publish Event skipping the outbox, the outbound message filter pipeline will still be honored
/// </summary>
/// <param name="event"></param>
/// <param name="options"></param>
/// <returns></returns>
public Task PublishSynchronously(IIntegrationEvent @event, MessageMetaData options = null)
{
return(_messagingService.PublishSynchronously(@event, options));
}
internal Task Reply(IIntegrationReply reply, IEndpoint endpoint, IOutboxSession outbox, MessageMetaData metaData = null, MessageMetaData commandMetaData = null)
{
metaData = metaData ?? new MessageMetaData();
metaData.PopulateForReplyTo(commandMetaData);
return(Dispatch(reply, metaData, endpoint, outbox));
}
/// <summary>
/// Send command using a preserialized form of the command using the configured outbox
/// the outbound message filter pipeline will still be used
/// </summary>
/// <param name="messageTypeIdenfier"></param>
/// <param name="command"></param>
/// <param name="options"></param>
/// <returns></returns>
public Task Send(string messageTypeIdenfier, byte[] command, MessageMetaData options = null)
{
return(_messagingService.Send(messageTypeIdenfier, command, _outbox, options));
}
public K FindKey(IIntegrationMessage message, MessageMetaData meta)
{
return(_keyMappers[message.GetType()].Invoke(message, meta));
}