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Add a wrapped event scheduler to add information for the message flow.
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Gerard Klijs
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Jul 4, 2024
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114 changes: 114 additions & 0 deletions
114
...src/main/java/io/axoniq/console/framework/messaging/AxoniqConsoleWrappedEventScheduler.kt
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,114 @@ | ||
| /* | ||
| * Copyright (c) 2022-2024. AxonIQ B.V. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package io.axoniq.console.framework.messaging | ||
|
|
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| import io.axoniq.console.framework.api.AxoniqConsoleMessageOrigin | ||
| import io.axoniq.console.framework.api.metrics.DispatcherStatisticIdentifier | ||
| import io.axoniq.console.framework.api.metrics.HandlerStatisticsMetricIdentifier | ||
| import io.axoniq.console.framework.api.metrics.HandlerType | ||
| import io.axoniq.console.framework.api.metrics.MessageIdentifier | ||
| import org.axonframework.eventhandling.EventMessage | ||
| import org.axonframework.eventhandling.scheduling.EventScheduler | ||
| import org.axonframework.eventhandling.scheduling.ScheduleToken | ||
| import org.axonframework.lifecycle.Lifecycle | ||
| import org.axonframework.lifecycle.Lifecycle.LifecycleRegistry | ||
| import org.axonframework.messaging.unitofwork.CurrentUnitOfWork | ||
| import java.time.Duration | ||
| import java.time.Instant | ||
|
|
||
| /** | ||
| * Used to be able to report the Dispatcher for events send via a scheduler. | ||
| * The original configured scheduler will become the delegate of this class. | ||
| */ | ||
| class AxoniqConsoleWrappedEventScheduler( | ||
| private val delegate: EventScheduler, | ||
| private val registry: HandlerMetricsRegistry, | ||
| private val componentName: String, | ||
| ) : EventScheduler, Lifecycle { | ||
| override fun schedule(triggerDateTime: Instant, event: Any): ScheduleToken { | ||
| registerEvent(event) | ||
| return delegate.schedule(triggerDateTime, event) | ||
| } | ||
|
|
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| override fun schedule(triggerDuration: Duration, event: Any): ScheduleToken { | ||
| registerEvent(event) | ||
| return delegate.schedule(triggerDuration, event) | ||
| } | ||
|
|
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| override fun cancelSchedule(scheduleToken: ScheduleToken?) { | ||
| delegate.cancelSchedule(scheduleToken) | ||
| } | ||
|
|
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| override fun reschedule(scheduleToken: ScheduleToken, triggerDuration: Duration, event: Any): ScheduleToken { | ||
| return delegate.reschedule(scheduleToken, triggerDuration, event) | ||
| } | ||
|
|
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| override fun reschedule(scheduleToken: ScheduleToken, triggerDateTime: Instant, event: Any): ScheduleToken { | ||
| return delegate.reschedule(scheduleToken, triggerDateTime, event) | ||
| } | ||
|
|
||
| override fun shutdown() { | ||
| delegate.shutdown() | ||
| } | ||
|
|
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| override fun registerLifecycleHandlers(lifecycleRegistry: LifecycleRegistry) { | ||
| if (delegate is Lifecycle) { | ||
| delegate.registerLifecycleHandlers(lifecycleRegistry) | ||
| } | ||
| } | ||
|
|
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| private fun registerEvent(event: Any) { | ||
| if (!CurrentUnitOfWork.isStarted()) { | ||
| // Determine the origin of the handler | ||
| val origin = when { | ||
| event is EventMessage<*> && event.payloadType?.javaClass?.isAnnotationPresent(AxoniqConsoleMessageOrigin::class.java) == true -> event.payloadType.getAnnotation(AxoniqConsoleMessageOrigin::class.java).name | ||
| event.javaClass.isAnnotationPresent(AxoniqConsoleMessageOrigin::class.java) -> event.javaClass.getAnnotation(AxoniqConsoleMessageOrigin::class.java).name | ||
| else -> componentName | ||
| } | ||
| reportMessageDispatchedFromOrigin(origin, event) | ||
| } else { | ||
| reportMessageDispatchedFromHandler(CurrentUnitOfWork.get().message.payload.javaClass.simpleName, event) | ||
| } | ||
|
|
||
| } | ||
|
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| private fun reportMessageDispatchedFromOrigin(originName: String, event: Any) { | ||
| registry.registerMessageDispatchedDuringHandling( | ||
| DispatcherStatisticIdentifier(HandlerStatisticsMetricIdentifier( | ||
| type = HandlerType.Origin, | ||
| component = originName, | ||
| message = MessageIdentifier("Dispatcher", originName)), event.toInformation()) | ||
| ) | ||
| } | ||
|
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| private fun reportMessageDispatchedFromHandler(handlerName: String, event: Any) { | ||
| registry.registerMessageDispatchedDuringHandling( | ||
| DispatcherStatisticIdentifier(HandlerStatisticsMetricIdentifier( | ||
| type = HandlerType.Message, | ||
| component = handlerName, | ||
| message = MessageIdentifier("Dispatcher", handlerName)), event.toInformation()) | ||
| ) | ||
| } | ||
|
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| private fun Any.toInformation() = MessageIdentifier( | ||
| EventMessage::class.java.simpleName, | ||
| when (this) { | ||
| is EventMessage<*> -> this.payloadType.name.toSimpleName() | ||
| else -> this.javaClass.name.toSimpleName() | ||
| } | ||
| ) | ||
| } |