public AssembledComponents AssembleComponents()
{
// set up all the variables
var routerQueue = CreateQueueWriter(Topology.RouterQueue);
var commands = new RedirectToCommand();
var events = new RedirectToDynamicEvent();
IEventStore eventStore = null;// new LegacyTapeStreamEventStore(Tapes(Topology.TapesContainer), Streamer, routerQueue);
var simple = new SimpleMessageSender(Streamer, routerQueue);
var flow = new CommandSender(simple);
var builder = new CqrsEngineBuilder(Streamer);
// route queue infrastructure together
builder.Handle(CreateInbox(Topology.RouterQueue), Topology.Route(CreateQueueWriter, Streamer, Tapes), "router");
builder.Handle(CreateInbox(Topology.EntityQueue), em => CallHandlers(commands, em));
builder.Handle(CreateInbox(Topology.EventsQueue), aem => CallHandlers(events, aem));
// message wiring magic
DomainBoundedContext.ApplicationServices(Docs, eventStore).ForEach(commands.WireToWhen);
DomainBoundedContext.Receptors(flow).ForEach(events.WireToWhen);
DomainBoundedContext.Projections(Docs).ForEach(events.WireToWhen);
DomainBoundedContext.Tasks(flow, Docs, false).ForEach(builder.AddTask);
ClientBoundedContext.Projections(Docs).ForEach(events.WireToWhen);
return(new AssembledComponents
{
Builder = builder,
Sender = flow,
Setup = this,
Simple = simple
});
}
public static void Rebuild(IDocumentStore targetContainer, ITapeStream stream)
{
var strategy = targetContainer.Strategy;
var memory = new MemoryStorageConfig();
var memoryContainer = memory.CreateNuclear(strategy).Container;
var tracked = new ProjectionInspectingContainer(memoryContainer);
var projections = new List <object>();
projections.AddRange(DomainBoundedContext.Projections(tracked));
projections.AddRange(ClientBoundedContext.Projections(tracked));
//projections.AddRange(ApiOpsBoundedContext.Projections(tracked));
if (tracked.Buckets.Count != projections.Count())
{
throw new InvalidOperationException("Count mismatch");
}
var storage = new NuclearStorage(targetContainer);
var hashes = storage.GetSingletonOrNew <ProjectionHash>().Entries;
var memoryProjections = projections.Select((projection, i) =>
{
var bucketName = tracked.Buckets[i];
var viewType = tracked.Views[i];
var projectionHash = GetClassHash(projection.GetType()) + "\r\n" + GetClassHash(viewType);
bool needsRebuild = !hashes.ContainsKey(bucketName) || hashes[bucketName] != projectionHash;
return(new
{
bucketName,
projection,
hash = projectionHash,
needsRebuild
});
}).ToArray();
foreach (var memoryProjection in memoryProjections)
{
if (memoryProjection.needsRebuild)
{
SystemObserver.Notify("[warn] {0} needs rebuild", memoryProjection.bucketName);
}
else
{
SystemObserver.Notify("[good] {0} is up-to-date", memoryProjection.bucketName);
}
}
var needRebuild = memoryProjections.Where(x => x.needsRebuild).ToArray();
if (needRebuild.Length == 0)
{
return;
}
var watch = Stopwatch.StartNew();
var wire = new RedirectToDynamicEvent();
needRebuild.ForEach(x => wire.WireToWhen(x.projection));
var handlersWatch = Stopwatch.StartNew();
Observe(stream, wire);
var timeTotal = watch.Elapsed.TotalSeconds;
var handlerTicks = handlersWatch.ElapsedTicks;
var timeInHandlers = Math.Round(TimeSpan.FromTicks(handlerTicks).TotalSeconds, 1);
Console.WriteLine("Total Elapsed: {0}sec ({1}sec in handlers)", Math.Round(timeTotal, 0), timeInHandlers);
// delete projections that were rebuilt
var bucketNames = needRebuild.Select(x => x.bucketName).ToArray();
foreach (var name in bucketNames)
{
targetContainer.Reset(name);
var contents = memoryContainer.EnumerateContents(name);
targetContainer.WriteContents(name, contents);
}
var allBuckets = new HashSet <string>(memoryProjections.Select(p => p.bucketName));
var obsolete = hashes.Keys.Where(s => !allBuckets.Contains(s)).ToArray();
foreach (var name in obsolete)
{
SystemObserver.Notify("[warn] {0} is obsolete", name);
targetContainer.Reset(name);
}
storage.UpdateSingletonEnforcingNew <ProjectionHash>(x =>
{
x.Entries.Clear();
foreach (var prj in memoryProjections)
{
x.Entries[prj.bucketName] = prj.hash;
}
});
}
