made CacheCOntroller() static
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@ -44,14 +44,11 @@ import kotlin.concurrent.scheduleAtFixedRate
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class CacheController {
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private val logger: Logger = LoggerFactory.getLogger(CacheController::class.java)
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init {
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initUpdates()
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scheduledUpdates()
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}
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// cache objects
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companion object{
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private val logger: Logger = LoggerFactory.getLogger(CacheController::class.java)
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@ -77,18 +74,13 @@ class CacheController {
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val courseLink = courseList.courses.stream().filter { x -> x.courseName == courseName }.findFirst().orElse(null).courseLink
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val timetableLink = courseLink.replace("week=0","week=$weekIndex")
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val jobTimetable = GlobalScope.async {
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val jobTimetable = async {
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timetable = TimetableParser().getTimeTable(timetableLink)
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weekNumberYear = TimetableParser().getWeekNumberYear(timetableLink)
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}
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jobTimetable.await()
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timetableList.add(
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TimetableCourseWeek(TimetableCourseMeta(currentTime, courseName, weekIndex, weekNumberYear, timetableLink),
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timetable
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)
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)
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timetableList.add(TimetableCourseWeek(TimetableCourseMeta(currentTime, courseName, weekIndex, weekNumberYear, timetableLink), timetable))
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logger.info("added new timetable for $courseName, week $weekIndex")
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}
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@ -133,146 +125,126 @@ class CacheController {
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return lessonList
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}
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}
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/**
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* this function updates the courseList
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* during the update process the old data will be returned for a API request
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*/
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private fun asyncUpdateCourseList() = GlobalScope.launch {
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CourseListParser().getCourseLinks(StartupController.courseListURL)?.let {
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courseList = CoursesList(
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CoursesMeta(System.currentTimeMillis() / 1000, it.size), it
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)
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}
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// private cache functions
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logger.info("Updated courses successful at ${Date(courseList.meta.updateTime * 1000)}")
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}
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/**
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* this function updates the mensa menu list
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* during the update process the old data will be returned for a API request
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*/
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private fun asyncUpdateMensa() = GlobalScope.launch {
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val mensaCurrentWeek = MensaParser().getMensaMenu(StartupController.mensaMenuURL)
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val mensaNextWeek = MensaParser().getMensaMenu(MensaParser().getMenuLinkNextWeek(StartupController.mensaMenuURL))
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// only update if we get valid data
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if (mensaCurrentWeek != null && mensaNextWeek != null) {
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mensaMenu = MensaMenu(
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MensaMeta(System.currentTimeMillis() / 1000, StartupController.mensaName), mensaCurrentWeek, mensaNextWeek
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)
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}
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logger.info("Updated mensamenu successful at ${Date(mensaMenu.meta.updateTime * 1000)}")
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}
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/**
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* this function updates all existing timetables
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* during the update process the old data will be returned for a API request
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* a FixedThreadPool is used to make parallel requests for faster updates
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*/
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private fun asyncUpdateTimetables() = GlobalScope.launch {
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logger.info("Updating ${timetableList.size} timetables ...")
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// create a new ThreadPool with 5 threads
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val executor = Executors.newFixedThreadPool(5)
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try {
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timetableList.forEach { timetableCourse ->
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executor.execute {
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timetableCourse.timetable = TimetableParser().getTimeTable(timetableCourse.meta.link)
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timetableCourse.meta.updateTime = System.currentTimeMillis() / 1000
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saveTimetableToCache(timetableCourse) // save the updated timetable to the cache directory
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}
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}
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} catch (ex: Exception) {
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logger.error("Error while updating the timetables", ex)
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} finally {
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executor.shutdown()
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}
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}
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/**
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* save a timetable to the cache directory
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* this is only call on async updates, it is NOT call when first getting the timetable
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* @param timetable a timetable of the type [TimetableCourseWeek]
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*/
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private fun saveTimetableToCache(timetable: TimetableCourseWeek) {
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println(timetable.timetable.toString())
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val file = File(StartupController.dirTcorCache, "timetable-${timetable.meta.courseName}-${timetable.meta.weekIndex}.json")
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val writer = BufferedWriter(FileWriter(file))
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writer.write(Gson().toJson(timetable))
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writer.close()
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}
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/**
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* before the APIController is up, get the data fist
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* runBlocking: otherwise the api would return no data to requests for a few seconds after startup
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*/
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private fun initUpdates() = runBlocking {
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// get all course links on startup, make sure there are course links
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val jobCourseUpdate = GlobalScope.async {
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/**
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* this function updates the courseList
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* during the update process the old data will be returned for a API request
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*/
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private fun asyncUpdateCourseList() = GlobalScope.launch {
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CourseListParser().getCourseLinks(StartupController.courseListURL)?.let {
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courseList = CoursesList(
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CoursesMeta(System.currentTimeMillis() / 1000, it.size), it
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)
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courseList = CoursesList(CoursesMeta(System.currentTimeMillis() / 1000, it.size), it)
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}
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logger.info("Updated courses successful at ${Date(courseList.meta.updateTime * 1000)}")
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}
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// get the current and next weeks mensa menu
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val jobMensa = GlobalScope.async{
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/**
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* this function updates the mensa menu list
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* during the update process the old data will be returned for a API request
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*/
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private fun asyncUpdateMensa() = GlobalScope.launch {
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val mensaCurrentWeek = MensaParser().getMensaMenu(StartupController.mensaMenuURL)
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val mensaNextWeek = MensaParser().getMensaMenu(MensaParser().getMenuLinkNextWeek(StartupController.mensaMenuURL))
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// only update if we get valid data
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if (mensaCurrentWeek != null && mensaNextWeek != null) {
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mensaMenu = MensaMenu(
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MensaMeta(System.currentTimeMillis() / 1000, StartupController.mensaName), mensaCurrentWeek, mensaNextWeek
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)
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mensaMenu = MensaMenu(MensaMeta(System.currentTimeMillis() / 1000, StartupController.mensaName), mensaCurrentWeek, mensaNextWeek)
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}
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logger.info("Updated mensamenu successful at ${Date(mensaMenu.meta.updateTime * 1000)}")
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}
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/**
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* this function updates all existing timetables
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* during the update process the old data will be returned for a API request
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* a FixedThreadPool is used to make parallel requests for faster updates
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*/
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private fun asyncUpdateTimetables() = GlobalScope.launch {
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logger.info("Updating ${timetableList.size} timetables ...")
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// create a new ThreadPool with 5 threads
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val executor = Executors.newFixedThreadPool(5)
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try {
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timetableList.forEach { timetableCourse ->
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executor.execute {
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timetableCourse.timetable = TimetableParser().getTimeTable(timetableCourse.meta.link)
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timetableCourse.meta.updateTime = System.currentTimeMillis() / 1000
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saveTimetableToCache(timetableCourse) // save the updated timetable to the cache directory
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}
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}
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} catch (ex: Exception) {
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logger.error("Error while updating the timetables", ex)
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} finally {
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executor.shutdown()
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}
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}
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jobCourseUpdate.await()
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jobMensa.await()
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/**
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* save a timetable to the cache directory
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* this is only call on async updates, it is NOT call when first getting the timetable
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* @param timetable a timetable of the type [TimetableCourseWeek]
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*/
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private fun saveTimetableToCache(timetable: TimetableCourseWeek) {
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println(timetable.timetable.toString())
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logger.info("Initial updates successful")
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}
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/**
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* update the CourseList every 24h, the Timetables every 3h and the Mensa Menu every hour
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* doesn't account the change between winter and summer time!
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*/
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private fun scheduledUpdates() {
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val currentTime = System.currentTimeMillis()
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val initDelay24h = (86400000 - ((currentTime + 3600000) % 86400000)) + 60000
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val initDelay3h = (10800000 - ((currentTime + 3600000) % 10800000)) + 60000
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val initDelay1h = (3600000 - ((currentTime + 3600000) % 3600000)) + 60000
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// update courseList every 24 hours (time in ms)
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Timer().scheduleAtFixedRate(initDelay24h, 86400000) {
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asyncUpdateCourseList()
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val file = File(StartupController.dirTcorCache, "timetable-${timetable.meta.courseName}-${timetable.meta.weekIndex}.json")
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val writer = BufferedWriter(FileWriter(file))
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writer.write(Gson().toJson(timetable))
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writer.close()
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}
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// update all already existing timetables every 3 hours (time in ms)
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Timer().scheduleAtFixedRate(initDelay3h, 10800000) {
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asyncUpdateTimetables()
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/**
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* before the APIController is up, get the data fist
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* runBlocking: otherwise the api would return no data to requests for a few seconds after startup
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*/
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private fun initUpdates() = runBlocking {
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// get all course links on startup, make sure there are course links
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val jobCourseUpdate = asyncUpdateCourseList()
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val jobMensa = asyncUpdateMensa()
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jobCourseUpdate.join()
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jobMensa.join()
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logger.info("Initial updates successful")
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}
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// update courses every hour (time in ms)
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Timer().scheduleAtFixedRate(initDelay1h, 3600000) {
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asyncUpdateMensa()
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}
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/**
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* update the CourseList every 24h, the Timetables every 3h and the Mensa Menu every hour
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* doesn't account the change between winter and summer time!
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*/
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private fun scheduledUpdates() {
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val currentTime = System.currentTimeMillis()
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val initDelay24h = (86400000 - ((currentTime + 3600000) % 86400000)) + 60000
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val initDelay3h = (10800000 - ((currentTime + 3600000) % 10800000)) + 60000
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val initDelay1h = (3600000 - ((currentTime + 3600000) % 3600000)) + 60000
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// post to status.mosad.xyz every hour, if an API key is present
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if (StartupController.cachetAPIKey != "0") {
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// update courseList every 24 hours (time in ms)
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Timer().scheduleAtFixedRate(initDelay24h, 86400000) {
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asyncUpdateCourseList()
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}
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// update all already existing timetables every 3 hours (time in ms)
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Timer().scheduleAtFixedRate(initDelay3h, 10800000) {
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asyncUpdateTimetables()
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}
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// update courses every hour (time in ms)
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Timer().scheduleAtFixedRate(initDelay1h, 3600000) {
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CachetAPIController.postTotalRequests()
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asyncUpdateMensa()
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}
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// post to status.mosad.xyz every hour, if an API key is present
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if (StartupController.cachetAPIKey != "0") {
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Timer().scheduleAtFixedRate(initDelay1h, 3600000) {
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CachetAPIController.postTotalRequests()
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}
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}
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}
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}
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}
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}
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