public async Task Invoke(IncomingTransportContext context, IBusForHandler bus, Func <Task> next)
{
ExceptionDispatchInfo serializationException = null;
try
{
await next()
.ConfigureAwait(false);
}
catch (SerializationException exception)
{
// We can't do async in a catch block, therefore we have to capture the exception!
serializationException = ExceptionDispatchInfo.Capture(exception);
}
if (SerializationExceptionHasBeenCaught(serializationException))
{
var message = context.TransportMessage;
// ReSharper disable PossibleNullReferenceException
message.SetFailureHeaders(serializationException.SourceException, "Messages which can't be deserialized are deadlettered immediately");
// ReSharper restore PossibleNullReferenceException
await message.DeadLetterAsync()
.ConfigureAwait(false);
// Because we instructed the message to deadletter it is safe to rethrow. The broker will not redeliver.
serializationException.Throw();
}
}
public async Task Invoke(IncomingTransportContext context, IBusForHandler bus, Func<Task> next)
{
ExceptionDispatchInfo serializationException = null;
try
{
await next()
.ConfigureAwait(false);
}
catch (SerializationException exception)
{
// We can't do async in a catch block, therefore we have to capture the exception!
serializationException = ExceptionDispatchInfo.Capture(exception);
}
if (SerializationExceptionHasBeenCaught(serializationException))
{
var message = context.TransportMessage;
// ReSharper disable PossibleNullReferenceException
message.SetFailureHeaders(serializationException.SourceException, "Messages which can't be deserialized are deadlettered immediately");
// ReSharper restore PossibleNullReferenceException
await message.DeadLetterAsync()
.ConfigureAwait(false);
// Because we instructed the message to deadletter it is safe to rethrow. The broker will not redeliver.
serializationException.Throw();
}
}
private Task InvokeTransport(IncomingTransportContext context, IBusForHandler bus)
{
if (this.executingTransportPipeline.Count == 0)
{
return(Task.FromResult(0));
}
IIncomingTransportStep step = this.executingTransportPipeline.Dequeue();
return(step.Invoke(context, bus, () => this.InvokeTransport(context, bus)));
}
public Task Invoke(IncomingTransportContext context, IBusForHandler bus, Func<Task> next)
{
var transportMessage = context.TransportMessage;
try
{
context.Set(this.Extract(transportMessage));
}
catch (Exception exception)
{
throw new SerializationException(string.Format("An error occurred while attempting to extract logical messages from transport message {0}", transportMessage), exception);
}
return next();
}
public Task Invoke(IncomingTransportContext context, IBusForHandler bus, Func <Task> next)
{
var transportMessage = context.TransportMessage;
try
{
context.Set(this.Extract(transportMessage));
}
catch (Exception exception)
{
throw new SerializationException(string.Format("An error occurred while attempting to extract logical messages from transport message {0}", transportMessage), exception);
}
return(next());
}
public async Task Invoke(IBusForHandler bus, TransportMessage message, EndpointConfiguration.ReadOnly configuration)
{
this.executingTransportPipeline = new Queue <IIncomingTransportStep>(this.registeredTransportPipeline);
var transportContext = new IncomingTransportContext(message, configuration);
transportContext.SetChain(this);
await this.InvokeTransport(transportContext, bus)
.ConfigureAwait(false);
// We assume that someone in the pipeline made logical message
var logicalMessage = transportContext.Get <LogicalMessage>();
this.executingLogicalPipeline = new Queue <IIncomingLogicalStep>(this.registeredLogicalPipeline);
var logicalContext = new IncomingLogicalContext(logicalMessage, message, configuration);
logicalContext.SetChain(this);
this.currentContext = logicalContext;
await this.InvokeLogical(logicalContext, bus)
.ConfigureAwait(false);
}
public Task Invoke(IncomingTransportContext context, IBusForHandler bus, Func <Task> next)
{
var step = this.factory();
return(step.Invoke(context, bus, next));
}
public async Task Invoke(IBusForHandler bus, TransportMessage message, EndpointConfiguration.ReadOnly configuration)
{
this.executingTransportPipeline = new Queue<IIncomingTransportStep>(this.registeredTransportPipeline);
var transportContext = new IncomingTransportContext(message, configuration);
transportContext.SetChain(this);
await this.InvokeTransport(transportContext, bus)
.ConfigureAwait(false);
// We assume that someone in the pipeline made logical message
var logicalMessage = transportContext.Get<LogicalMessage>();
this.executingLogicalPipeline = new Queue<IIncomingLogicalStep>(this.registeredLogicalPipeline);
var logicalContext = new IncomingLogicalContext(logicalMessage, message, configuration);
logicalContext.SetChain(this);
this.currentContext = logicalContext;
await this.InvokeLogical(logicalContext, bus)
.ConfigureAwait(false);
}
public Task Invoke(IncomingTransportContext context, IBusForHandler bus, Func<Task> next)
{
var step = this.factory();
return step.Invoke(context, bus, next);
}
private Task InvokeTransport(IncomingTransportContext context, IBusForHandler bus)
{
if (this.executingTransportPipeline.Count == 0)
{
return Task.FromResult(0);
}
IIncomingTransportStep step = this.executingTransportPipeline.Dequeue();
return step.Invoke(context, bus, () => this.InvokeTransport(context, bus));
}
