feat: キューのタイムアウトを監視するように

broker/broker-mongodb/src/main/kotlin/dev/usbharu/owl/broker/mongodb/MongodbQueuedTaskRepository.kt

@@ -16,6 +16,7 @@
 
 package dev.usbharu.owl.broker.mongodb
 
+import com.mongodb.client.model.Filters
 import com.mongodb.client.model.Filters.*
 import com.mongodb.client.model.FindOneAndUpdateOptions
 import com.mongodb.client.model.ReplaceOptions
@@ -24,6 +25,8 @@ import com.mongodb.client.model.Updates.set
 import com.mongodb.kotlin.client.coroutine.MongoDatabase
 import dev.usbharu.owl.broker.domain.model.queuedtask.QueuedTask
 import dev.usbharu.owl.broker.domain.model.queuedtask.QueuedTaskRepository
+import dev.usbharu.owl.broker.domain.model.task.Task
+import dev.usbharu.owl.common.property.PropertySerializeUtils
 import dev.usbharu.owl.common.property.PropertySerializerFactory
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.map
@@ -35,7 +38,10 @@ import java.time.Instant
 import java.util.*
 
 @Singleton
-class MongodbQueuedTaskRepository(private val propertySerializerFactory: PropertySerializerFactory,database: MongoDatabase) : QueuedTaskRepository {
+class MongodbQueuedTaskRepository(
+    private val propertySerializerFactory: PropertySerializerFactory,
+    database: MongoDatabase
+) : QueuedTaskRepository {
 
     private val collection = database.getCollection<QueuedTaskMongodb>("queued_task")
     override suspend fun save(queuedTask: QueuedTask): QueuedTask {
@@ -75,6 +81,11 @@ class MongodbQueuedTaskRepository(private val propertySerializerFactory: Propert
             )
         ).map { it.toQueuedTask(propertySerializerFactory) }
     }
+
+    override fun findByQueuedAtBeforeAndAssignedConsumerIsNull(instant: Instant): Flow<QueuedTask> {
+        return collection.find(Filters.lte(QueuedTaskMongodb::queuedAt.name, instant))
+            .map { it.toQueuedTask(propertySerializerFactory) }
+    }
 }
 
 data class QueuedTaskMongodb(
@@ -93,11 +104,50 @@ data class QueuedTaskMongodb(
             attempt,
             queuedAt,
             task.toTask(propertySerializerFactory),
-            UUID.fromString(assignedConsumer),
+            assignedConsumer?.let { UUID.fromString(it) },
             assignedAt
         )
     }
 
+    data class TaskMongodb(
+        val name: String,
+        val id: String,
+        val publishProducerId: String,
+        val publishedAt: Instant,
+        val nextRetry: Instant,
+        val completedAt: Instant?,
+        val attempt: Int,
+        val properties: Map<String, String>
+    ) {
+
+        fun toTask(propertySerializerFactory: PropertySerializerFactory): Task {
+            return Task(
+                name = name,
+                id = UUID.fromString(id),
+                publishProducerId = UUID.fromString(publishProducerId),
+                publishedAt = publishedAt,
+                nextRetry = nextRetry,
+                completedAt = completedAt,
+                attempt = attempt,
+                properties = PropertySerializeUtils.deserialize(propertySerializerFactory, properties)
+            )
+        }
+
+        companion object {
+            fun of(propertySerializerFactory: PropertySerializerFactory, task: Task): TaskMongodb {
+                return TaskMongodb(
+                    task.name,
+                    task.id.toString(),
+                    task.publishProducerId.toString(),
+                    task.publishedAt,
+                    task.nextRetry,
+                    task.completedAt,
+                    task.attempt,
+                    PropertySerializeUtils.serialize(propertySerializerFactory, task.properties)
+                )
+            }
+        }
+    }
     companion object {
         fun of(propertySerializerFactory: PropertySerializerFactory, queuedTask: QueuedTask): QueuedTaskMongodb {
             return QueuedTaskMongodb(

broker/broker-mongodb/src/main/kotlin/dev/usbharu/owl/broker/mongodb/MongodbTaskRepository.kt

@@ -25,6 +25,9 @@ import dev.usbharu.owl.common.property.PropertySerializeUtils
 import dev.usbharu.owl.common.property.PropertySerializerFactory
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.map
+import org.bson.BsonType
+import org.bson.codecs.pojo.annotations.BsonId
+import org.bson.codecs.pojo.annotations.BsonRepresentation
 import org.koin.core.annotation.Singleton
 import java.time.Instant
 import java.util.*
@@ -50,6 +53,8 @@ class MongodbTaskRepository(database: MongoDatabase, private val propertySeriali
 
 data class TaskMongodb(
     val name: String,
+    @BsonId
+    @BsonRepresentation(BsonType.STRING)
     val id: String,
     val publishProducerId: String,
     val publishedAt: Instant,

broker/src/main/kotlin/dev/usbharu/owl/broker/Main.kt

@@ -18,6 +18,7 @@ package dev.usbharu.owl.broker
 
 import dev.usbharu.owl.broker.service.DefaultRetryPolicyFactory
 import dev.usbharu.owl.broker.service.RetryPolicyFactory
+import dev.usbharu.owl.common.retry.ExponentialRetryPolicy
 import kotlinx.coroutines.runBlocking
 import org.koin.core.context.startKoin
 import org.koin.dsl.module
@@ -40,7 +41,7 @@ fun main() {
 
         val module = module {
             single<RetryPolicyFactory> {
-                DefaultRetryPolicyFactory(emptyMap())
+                DefaultRetryPolicyFactory(mapOf("" to ExponentialRetryPolicy()))
             }
         }
         modules(module, defaultModule, moduleContext.module())

broker/src/main/kotlin/dev/usbharu/owl/broker/OwlBrokerApplication.kt

@@ -55,7 +55,7 @@ class OwlBrokerApplication(
         )
 
         return coroutineScope.launch {
-            taskManagementService.startManagement()
+            taskManagementService.startManagement(this)
         }
     }
 

broker/src/main/kotlin/dev/usbharu/owl/broker/domain/model/queuedtask/QueuedTaskRepository.kt

@@ -17,6 +17,7 @@
 package dev.usbharu.owl.broker.domain.model.queuedtask
 
 import kotlinx.coroutines.flow.Flow
+import java.time.Instant
 import java.util.*
 
 interface QueuedTaskRepository {
@@ -28,4 +29,6 @@ interface QueuedTaskRepository {
     suspend fun findByTaskIdAndAssignedConsumerIsNullAndUpdate(id:UUID,update:QueuedTask):QueuedTask
 
     fun findByTaskNameInAndAssignedConsumerIsNullAndOrderByPriority(tasks:List<String>,limit:Int): Flow<QueuedTask>
+
+    fun findByQueuedAtBeforeAndAssignedConsumerIsNull(instant: Instant): Flow<QueuedTask>
 }

broker/src/main/kotlin/dev/usbharu/owl/broker/service/QueueScanner.kt

@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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 dev.usbharu.owl.broker.service
+
+import dev.usbharu.owl.broker.domain.model.queuedtask.QueuedTask
+import kotlinx.coroutines.currentCoroutineContext
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.emitAll
+import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.isActive
+import org.koin.core.annotation.Singleton
+import java.time.Instant
+
+interface QueueScanner {
+    fun startScan(): Flow<QueuedTask>
+}
+
+@Singleton
+class QueueScannerImpl(private val queueStore: QueueStore) : QueueScanner {
+    override fun startScan(): Flow<QueuedTask> {
+        return flow {
+            while (currentCoroutineContext().isActive) {
+                emitAll(scanQueue())
+                delay(1000)
+            }
+        }
+    }
+
+    private fun scanQueue(): Flow<QueuedTask> {
+        return queueStore.findByQueuedAtBeforeAndAssignedConsumerIsNull(Instant.now().minusSeconds(10))
+    }
+
+}

broker/src/main/kotlin/dev/usbharu/owl/broker/service/QueueStore.kt

@@ -20,6 +20,7 @@ import dev.usbharu.owl.broker.domain.model.queuedtask.QueuedTask
 import dev.usbharu.owl.broker.domain.model.queuedtask.QueuedTaskRepository
 import kotlinx.coroutines.flow.Flow
 import org.koin.core.annotation.Singleton
+import java.time.Instant
 
 interface QueueStore {
     suspend fun enqueue(queuedTask: QueuedTask)
@@ -28,6 +29,8 @@ interface QueueStore {
     suspend fun dequeue(queuedTask: QueuedTask)
     suspend fun dequeueAll(queuedTaskList: List<QueuedTask>)
     fun findByTaskNameInAndAssignedConsumerIsNullAndOrderByPriority(tasks: List<String>, limit: Int): Flow<QueuedTask>
+
+    fun findByQueuedAtBeforeAndAssignedConsumerIsNull(instant: Instant): Flow<QueuedTask>
 }
 
 @Singleton
@@ -55,4 +58,8 @@ class QueueStoreImpl(private val queuedTaskRepository: QueuedTaskRepository) : Q
         return queuedTaskRepository.findByTaskNameInAndAssignedConsumerIsNullAndOrderByPriority(tasks, limit)
     }
 
+    override fun findByQueuedAtBeforeAndAssignedConsumerIsNull(instant: Instant): Flow<QueuedTask> {
+        return queuedTaskRepository.findByQueuedAtBeforeAndAssignedConsumerIsNull(instant)
+    }
+
 }

broker/src/main/kotlin/dev/usbharu/owl/broker/service/TaskManagementService.kt

@@ -21,10 +21,14 @@ import dev.usbharu.owl.broker.domain.model.queuedtask.QueuedTask
 import dev.usbharu.owl.broker.domain.model.task.Task
 import dev.usbharu.owl.broker.domain.model.task.TaskRepository
 import dev.usbharu.owl.broker.domain.model.taskdefinition.TaskDefinitionRepository
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.coroutineScope
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.collect
 import kotlinx.coroutines.flow.flowOf
 import kotlinx.coroutines.flow.onEach
+import kotlinx.coroutines.joinAll
+import kotlinx.coroutines.launch
 import org.koin.core.annotation.Singleton
 import org.slf4j.LoggerFactory
 import java.time.Instant
@@ -33,7 +37,7 @@ import java.util.*
 
 interface TaskManagementService {
 
-    suspend fun startManagement()
+    suspend fun startManagement(coroutineScope: CoroutineScope)
     fun findAssignableTask(consumerId: UUID, numberOfConcurrent: Int): Flow<QueuedTask>
 }
 
@@ -44,17 +48,35 @@ class TaskManagementServiceImpl(
     private val taskDefinitionRepository: TaskDefinitionRepository,
     private val assignQueuedTaskDecider: AssignQueuedTaskDecider,
     private val retryPolicyFactory: RetryPolicyFactory,
-    private val taskRepository: TaskRepository
+    private val taskRepository: TaskRepository,
+    private val queueScanner: QueueScanner
 ) : TaskManagementService {
 
-    private var flow: Flow<Task> = flowOf()
+    private var taskFlow: Flow<Task> = flowOf()
-    override suspend fun startManagement() {
+    private var queueFlow: Flow<QueuedTask> = flowOf()
-        flow = taskScanner.startScan()
+    override suspend fun startManagement(coroutineScope: CoroutineScope) {
+        taskFlow = taskScanner.startScan()
+        queueFlow = queueScanner.startScan()
 
-        flow.onEach {
+        coroutineScope {
+            listOf(
+                launch {
+                    taskFlow.onEach {
                         enqueueTask(it)
                     }.collect()
-
+                },
+                launch {
+                    queueFlow.onEach {
+                        logger.warn(
+                            "Queue timed out. name: {} id: {} attempt: {}",
+                            it.task.name,
+                            it.task.id,
+                            it.attempt
+                        )
+                    }.collect()
+                }
+            ).joinAll()
+        }
     }
 
 

broker/src/test/kotlin/dev/usbharu/owl/broker/service/TaskManagementServiceImplTest.kt

@@ -1,13 +0,0 @@
-package dev.usbharu.owl.broker.service
-
-import org.junit.jupiter.api.Test
-
-class TaskManagementServiceImplTest {
-
-    @Test
-    fun findAssignableTask() {
-        val taskManagementServiceImpl = TaskManagementServiceImpl()
-
-        Thread.sleep(10000)
-    }
-}