WorkManager

WorkManager.kt

class WorkManagerWorkFactory @Inject constructor(private val subComponentBuilder: WorkManagerFactorySubComponent.Builder) : WorkerFactory() {
    override fun createWorker(appContext: Context, workerClassName: String, workerParameters: WorkerParameters): RxWorker? {
        val workManagerFactorySubComponent = subComponentBuilder.parameters(workerParameters).build()
        return createWorker(workerClassName, workManagerFactorySubComponent.workerMap)
    }

    private fun createWorker(workerClassName: String, workerMap: Map<Class<out RxWorker>, Provider<RxWorker>>): RxWorker {
        // Get the worker class definition
        val workerClass = Class.forName(workerClassName).asSubclass(RxWorker::class.java)
        // Get the worker class instance
        var provider = workerMap[workerClass]
        if (provider == null) {
            // Fetch the binding
            for ((key, value) in workerMap) {
                if (workerClass.isAssignableFrom(key)) {
                    provider = value
                    break
                }
            }
        }
        return requireNotNull(provider) { "Missing binding for " + workerClassName + ". Consider adding an entry in " + WorkerBindingModule::class.java.simpleName }.get()
    }
}