protected async Task HandleCommand <TCommand>(TCommand command, Func <TAggregateRoot, TCommand, IEnumerable <Event <TAggregateIdentity> > > handler, Func <IEnumerable <Event <TAggregateIdentity> >, Task> dispatchEvents) where TCommand : Command <TAggregateIdentity>
{
var isAlreadyProcessed = await _idempotencyCheck.IsProcessed(command.Id).ConfigureAwait(false);
if (isAlreadyProcessed)
{
return;
}
var aggregateRoot = await _aggregateRepository
.GetById <TAggregateRoot, TAggregateIdentity>(command.AggregateIdentity).ConfigureAwait(false);
var events = handler(aggregateRoot, command);
foreach (var @event in events)
{
aggregateRoot.PlayEvent(@event, true);
}
await _aggregateRepository.Store <TAggregateRoot, TAggregateIdentity>(aggregateRoot).ConfigureAwait(false);
await dispatchEvents(events).ConfigureAwait(false);
await _idempotencyCheck.MarkProcessed(command.Id).ConfigureAwait(false);
}
public Task <Unit> Handle(PlaceMultiConduitCommand request, CancellationToken cancellationToken)
{
var multiConduit = new MultiConduit(request.MultiConduitId, request.WalkOfInterestId, request.ConduitSpecificationId, request.Name, request.MarkingColor, request.MarkingText, conduitNetworkQueryService, conduitSpecificationRepository, request.DemoDataSpec);
repo.Store(multiConduit);
return(Unit.Task);
}
public Task <Unit> Handle(PlaceConduitClosureCommand request, CancellationToken cancellationToken)
{
// Check if aggregate id has been used
if (repo.CheckIfAggregateIdHasBeenUsed(request.ConduitClosureId))
{
throw new ArgumentException("The uuid: " + request.ConduitClosureId + " has allready been used. This is an event sourced system, so you're not allowed to reuse object uuids.");
}
var conduitClosure = new ConduitClosure(request.ConduitClosureId, request.PointOfInterestId, routeNetworkQueryService, conduitNetworkQueryService, conduitClosureRepository);
repo.Store(conduitClosure);
return(Unit.Task);
}
public Task <Unit> Handle(PlaceFiberCableCommand request, CancellationToken cancellationToken)
{
var fiberCable = new FiberCable(request.FiberCableId, request.WalkOfInterestId, request.NumberOfFibers, request.Name, fiberNetworkQueryService);
repo.Store(fiberCable);
return(Unit.Task);
}
public Task <Unit> Handle(AddNodeCommand request, CancellationToken cancellationToken)
{
routeNetworkAggregate.AddRouteNode(request.Id, request.Name, request.NodeKind, request.NodeFunctionKind, request.Geometry, request.LocationInfo);
repo.Store(routeNetworkAggregate);
/*
* // Id check
* if (request.Id == null || request.Id == Guid.Empty)
* throw new ArgumentException("Id cannot be null or empty");
*
* // Check that not already exists
* if (routeQueryService.CheckIfRouteNodeIdExists(request.Id))
* {
* throw new ArgumentException("A route node with id: " + request.Id + " already exists");
* }
*
* var routeNode = new RouteNode(request.Id, request.Name, request.NodeKind, request.NodeFunctionKind, request.Geometry, request.LocationInfo);
*
*
* repo.Store(routeNode);
*/
return(Unit.Task);
}
public Task <Unit> Handle(RegisterWalkOfInterestCommand request, CancellationToken cancellationToken)
{
// Id check
if (request.WalkOfInterestId == null || request.WalkOfInterestId == Guid.Empty)
{
throw new ArgumentException("Id cannot be null or empty");
}
// Basic check that some route element ids are filled in at all
if (request.RouteElementIds == null || request.RouteElementIds.Count < 3)
{
throw new ArgumentException("The route element id list is empty or has less than 3 ids, which cannot possible be a valid walk. A minumum walk is from one node, through a segment, to another node (node->segment->node) - i.e. 3 ids.");
}
// Check if the chain of route element ids are valid (is proper connected to each other in the route network graph)
bool shouldBeNode = true;
bool firstElement = true;
GraphElement previousElement = null;
Guid previousElementId = Guid.Empty;
int position = 1;
foreach (var routeElementId in request.RouteElementIds)
{
GraphElement currentElement = null;
// Node
if (shouldBeNode)
{
if (!routeQueryService.CheckIfRouteNodeIdExists(routeElementId))
{
throw new ArgumentException("Route element id: " + routeElementId + " at position: " + position + " (in the route element ids property) is expected to be a node. But no node could be found with that id.");
}
currentElement = routeQueryService.GetRouteNodeInfo(routeElementId);
shouldBeNode = false;
}
// Segment
else if (!shouldBeNode)
{
if (!routeQueryService.CheckIfRouteSegmentIdExists(routeElementId))
{
throw new ArgumentException("Route element id: " + routeElementId + " at position: " + position + " (in the route element ids property) is expected to be a segment. But no segment could be found with that id.");
}
currentElement = routeQueryService.GetRouteSegmentInfo(routeElementId);
shouldBeNode = true;
}
// Check that the element is connected to the previous specified element in the route network graph
if (!firstElement)
{
if (!currentElement.NeighborElements.Exists(n => n == previousElement))
{
throw new ArgumentException("Route element id: " + routeElementId + " at position: " + position + " (in the route element ids property) is not neighboor to previous id: " + previousElementId + " according to the route network graph. Please check that the walk is valid.");
}
}
position++;
firstElement = false;
previousElementId = routeElementId;
previousElement = currentElement;
}
// Check if first id is a node
if (!(routeQueryService.GetRouteElementInfo(request.RouteElementIds[0]) is RouteNodeInfo))
{
throw new ArgumentException("First route element id (in the route element ids property) must be a node, but it's not.");
}
// Check if last id is a node
if (!(routeQueryService.GetRouteElementInfo(request.RouteElementIds[request.RouteElementIds.Count - 1]) is RouteNodeInfo))
{
throw new ArgumentException("Last route element id (in the route element ids property) must be a node, but it's not.");
}
var walkOfInterest = new WalkOfInterest(request.WalkOfInterestId, request.RouteElementIds);
repo.Store(walkOfInterest);
return(Unit.Task);
}