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TaskHandler.kt
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TaskHandler.kt
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package org.gotson.komga.application.tasks
import mu.KotlinLogging
import org.gotson.komga.domain.persistence.BookRepository
import org.gotson.komga.domain.persistence.LibraryRepository
import org.gotson.komga.domain.service.BookLifecycle
import org.gotson.komga.domain.service.LibraryScanner
import org.gotson.komga.domain.service.MetadataLifecycle
import org.gotson.komga.infrastructure.jms.QUEUE_TASKS
import org.gotson.komga.infrastructure.jms.QUEUE_TASKS_SELECTOR
import org.springframework.jms.annotation.JmsListener
import org.springframework.stereotype.Service
import kotlin.time.measureTime
private val logger = KotlinLogging.logger {}
@Service
class TaskHandler(
private val taskReceiver: TaskReceiver,
private val libraryRepository: LibraryRepository,
private val bookRepository: BookRepository,
private val libraryScanner: LibraryScanner,
private val bookLifecycle: BookLifecycle,
private val metadataLifecycle: MetadataLifecycle
) {
@JmsListener(destination = QUEUE_TASKS, selector = QUEUE_TASKS_SELECTOR)
fun handleTask(task: Task) {
logger.info { "Executing task: $task" }
try {
measureTime {
when (task) {
is Task.ScanLibrary ->
libraryRepository.findByIdOrNull(task.libraryId)?.let {
libraryScanner.scanRootFolder(it)
taskReceiver.analyzeUnknownAndOutdatedBooks(it)
} ?: logger.warn { "Cannot execute task $task: Library does not exist" }
is Task.AnalyzeBook ->
bookRepository.findByIdOrNull(task.bookId)?.let {
bookLifecycle.analyzeAndPersist(it)
taskReceiver.refreshBookMetadata(it)
} ?: logger.warn { "Cannot execute task $task: Book does not exist" }
is Task.GenerateBookThumbnail ->
bookRepository.findByIdOrNull(task.bookId)?.let {
bookLifecycle.regenerateThumbnailAndPersist(it)
} ?: logger.warn { "Cannot execute task $task: Book does not exist" }
is Task.RefreshBookMetadata ->
bookRepository.findByIdOrNull(task.bookId)?.let {
metadataLifecycle.refreshMetadata(it)
} ?: logger.warn { "Cannot execute task $task: Book does not exist" }
}
}.also {
logger.info { "Task $task executed in $it" }
}
} catch (e: Exception) {
logger.error(e) { "Task $task execution failed" }
}
}
}