Refactor event bus and queue system; detect cycles in DI realization and make

src/http/kernel/module/ClearRequestEventBusHTTPModule.ts

@@ -0,0 +1,28 @@
+import {HTTPKernelModule} from '../HTTPKernelModule'
+import {Inject, Injectable} from '../../../di'
+import {HTTPKernel} from '../HTTPKernel'
+import {Request} from '../../lifecycle/Request'
+import {Bus} from '../../../support/bus'
+
+/**
+ * HTTP kernel module that creates a request-specific event bus
+ * and injects it into the request container.
+ */
+@Injectable()
+export class ClearRequestEventBusHTTPModule extends HTTPKernelModule {
+    @Inject()
+    protected bus!: Bus
+
+    public static register(kernel: HTTPKernel): void {
+        kernel.register(this).first()
+    }
+
+    public async apply(request: Request): Promise<Request> {
+        const requestBus = request.make<Bus>(Bus)
+        await requestBus.down()
+
+        // FIXME disconnect request bus from global event bus
+
+        return request
+    }
+}

src/http/kernel/module/InjectRequestEventBusHTTPModule.ts

@@ -2,8 +2,7 @@ import {HTTPKernelModule} from '../HTTPKernelModule'
 import {Inject, Injectable} from '../../../di'
 import {HTTPKernel} from '../HTTPKernel'
 import {Request} from '../../lifecycle/Request'
-import {EventBus} from '../../../event/EventBus'
-import {PropagatingEventBus} from '../../../event/PropagatingEventBus'
+import {Bus} from '../../../support/bus'
 
 /**
  * HTTP kernel module that creates a request-specific event bus
@@ -12,17 +11,18 @@ import {PropagatingEventBus} from '../../../event/PropagatingEventBus'
 @Injectable()
 export class InjectRequestEventBusHTTPModule extends HTTPKernelModule {
     @Inject()
-    protected bus!: EventBus
+    protected bus!: Bus
 
     public static register(kernel: HTTPKernel): void {
         kernel.register(this).first()
     }
 
     public async apply(request: Request): Promise<Request> {
-        const bus = <PropagatingEventBus> this.make(PropagatingEventBus)
-        bus.connect(this.bus)
+        const requestBus = this.container().makeNew<Bus>(Bus)
+        await requestBus.up()
+        await requestBus.connect(this.bus)
 
-        request.purge(EventBus).registerProducer(EventBus, () => bus)
+        request.purge(Bus).registerProducer(Bus, () => requestBus)
         return request
     }
 }