void TryAppendHeaders(Task <HttpResponseMessage> t, JasonRequestArgs args)
{
if (!t.IsFaulted && args.AppendCorrelationIdToResponse && !String.IsNullOrWhiteSpace(args.CorrelationId))
{
t.Result.Headers.Add(this.correlationIdHeader, args.CorrelationId);
}
}
public Task<HttpResponseMessage> ExecuteActionFilterAsync( HttpActionContext actionContext, CancellationToken cancellationToken, Func<Task<HttpResponseMessage>> continuation )
{
Ensure.That( actionContext ).Named( () => actionContext ).IsNotNull();
Ensure.That( continuation ).Named( () => continuation ).IsNotNull();
var endpoint = this.configuration.GetEndpoint<JasonWebAPIEndpoint>();
var interceptCommandAction = actionContext.ActionDescriptor.GetCustomAttributes<InterceptCommandActionAttribute>().SingleOrDefault();
var args = new JasonRequestArgs();
args.IsJasonExecute = false;
args.IsCommandInterceptor = interceptCommandAction != null;
args.HttpRequest = actionContext.Request;
if( args.IsCommandInterceptor )
{
if( actionContext.Request.Headers.Contains( this.correlationIdHeader ) )
{
args.CorrelationId = actionContext.Request.Headers.GetValues( this.correlationIdHeader ).Single();
args.AppendCorrelationIdToResponse = true;
}
if( endpoint.OnJasonRequest != null )
{
endpoint.OnJasonRequest( args );
}
var command = actionContext.ActionArguments.Values.OfType<Object>().Single();
if( endpoint.OnCommandActionIntercepted != null )
{
HttpStatusCode code = HttpStatusCode.NoContent;
if( interceptCommandAction.ResponseCode.HasValue )
{
code = interceptCommandAction.ResponseCode.Value;
}
var response = endpoint.OnCommandActionIntercepted( actionContext.Request, command, this.defaultExecutor );
if( response == null && interceptCommandAction.ResponseCode.HasValue )
{
response = new HttpResponseMessage( code );
}
else
{
response = new HttpResponseMessage( HttpStatusCode.NoContent );
}
return Task.FromResult( response )
.ContinueWith(t=>
{
this.TryAppendHeaders( t, args );
return t;
})
.Unwrap();
}
else
{
var response = this.defaultExecutor( args.HttpRequest, command );
return Task.FromResult( response )
.ContinueWith( t =>
{
this.TryAppendHeaders( t, args );
return t;
} )
.Unwrap();
}
}
else
{
return continuation();
}
}
public Task <HttpResponseMessage> ExecuteActionFilterAsync(HttpActionContext actionContext, CancellationToken cancellationToken, Func <Task <HttpResponseMessage> > continuation)
{
Ensure.That(actionContext).Named(() => actionContext).IsNotNull();
Ensure.That(continuation).Named(() => continuation).IsNotNull();
var endpoint = this.configuration.GetEndpoint <JasonWebAPIEndpoint>();
var interceptCommandAction = actionContext.ActionDescriptor.GetCustomAttributes <InterceptCommandActionAttribute>().SingleOrDefault();
var args = new JasonRequestArgs();
args.IsJasonExecute = false;
args.IsCommandInterceptor = interceptCommandAction != null;
args.HttpRequest = actionContext.Request;
if (args.IsCommandInterceptor)
{
if (actionContext.Request.Headers.Contains(this.correlationIdHeader))
{
args.CorrelationId = actionContext.Request.Headers.GetValues(this.correlationIdHeader).Single();
args.AppendCorrelationIdToResponse = true;
}
if (endpoint.OnJasonRequest != null)
{
endpoint.OnJasonRequest(args);
}
var command = actionContext.ActionArguments.Values.OfType <Object>().Single();
if (endpoint.OnCommandActionIntercepted != null)
{
HttpStatusCode code = HttpStatusCode.NoContent;
if (interceptCommandAction.ResponseCode.HasValue)
{
code = interceptCommandAction.ResponseCode.Value;
}
var response = endpoint.OnCommandActionIntercepted(actionContext.Request, command, this.defaultExecutor);
if (response == null && interceptCommandAction.ResponseCode.HasValue)
{
response = new HttpResponseMessage(code);
}
else
{
response = new HttpResponseMessage(HttpStatusCode.NoContent);
}
return(Task.FromResult(response)
.ContinueWith(t =>
{
this.TryAppendHeaders(t, args);
return t;
})
.Unwrap());
}
else
{
var response = this.defaultExecutor(args.HttpRequest, command);
return(Task.FromResult(response)
.ContinueWith(t =>
{
this.TryAppendHeaders(t, args);
return t;
})
.Unwrap());
}
}
else
{
return(continuation());
}
}
void TryAppendHeaders( Task<HttpResponseMessage> t, JasonRequestArgs args )
{
if( !t.IsFaulted && args.AppendCorrelationIdToResponse && !String.IsNullOrWhiteSpace( args.CorrelationId ) )
{
t.Result.Headers.Add( this.correlationIdHeader, args.CorrelationId );
}
}
