ref: ccd2377d3e1f2491dccc56069fadf0f8ca163f95
app/src/main/java/ml/adamsprogs/bimba/datasources/TimetableDownloader.kt
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package ml.adamsprogs.bimba.datasources import android.annotation.TargetApi import android.app.IntentService import android.app.Notification import android.content.Context import android.content.Intent import android.support.v4.app.NotificationCompat import java.io.* import android.app.NotificationManager import android.os.Build import com.univocity.parsers.csv.CsvWriter import com.univocity.parsers.csv.CsvWriterSettings import ir.mahdi.mzip.zip.ZipArchive import ml.adamsprogs.bimba.NetworkStateReceiver import ml.adamsprogs.bimba.NotificationChannels import ml.adamsprogs.bimba.R import ml.adamsprogs.bimba.models.Timetable import org.supercsv.io.CsvListReader import org.supercsv.prefs.CsvPreference import java.net.* import java.util.* class TimetableDownloader : IntentService("TimetableDownloader") { companion object { const val ACTION_DOWNLOADED = "ml.adamsprogs.bimba.timetableDownloaded" const val EXTRA_FORCE = "force" const val EXTRA_RESULT = "result" const val RESULT_NO_CONNECTIVITY = "no connectivity" const val RESULT_UP_TO_DATE = "up-to-date" const val RESULT_DOWNLOADED = "downloaded" const val RESULT_FINISHED = "finished" } private lateinit var notificationManager: NotificationManager private var size: Int = 0 override fun onHandleIntent(intent: Intent?) { //fixme throws something if (intent != null) { notificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager val prefs = this.getSharedPreferences("ml.adamsprogs.bimba.prefs", Context.MODE_PRIVATE)!! if (!NetworkStateReceiver.isNetworkAvailable(this)) { sendResult(RESULT_NO_CONNECTIVITY) return } val url = URL("http://ztm.poznan.pl/pl/dla-deweloperow/getGTFSFile") val httpCon = url.openConnection() as HttpURLConnection if (httpCon.responseCode != HttpURLConnection.HTTP_OK) { //IOEXCEPTION or EOFEXCEPTION or ConnectException sendResult(RESULT_NO_CONNECTIVITY) return } val lastModified = httpCon.getHeaderField("Content-Disposition").split("=")[1].trim('\"').split("_")[0] size = httpCon.getHeaderField("Content-Length").toInt() / 1024 val force = intent.getBooleanExtra(EXTRA_FORCE, false) val currentLastModified = prefs.getString("timetableLastModified", "19791012") if (lastModified <= currentLastModified && lastModified <= today() && !force) { sendResult(RESULT_UP_TO_DATE) return } notify(0, getString(R.string.timetable_downloading), size) val gtfs = File(this.filesDir, "timetable.zip") copyInputStreamToFile(httpCon.inputStream, gtfs) val prefsEditor = prefs.edit() prefsEditor.putString("timetableLastModified", lastModified) prefsEditor.apply() sendResult(RESULT_DOWNLOADED) notify(getString(R.string.timetable_converting)) val target = File(this.filesDir, "gtfs_files") target.deleteRecursively() target.mkdir() ZipArchive.unzip(gtfs.path, target.path, "") val stopTimesFile = File(filesDir, "gtfs_files/stop_times.txt") val reader = CsvListReader(FileReader(stopTimesFile), CsvPreference.STANDARD_PREFERENCE) val header = reader.getHeader(true) val headers = HashMap<String, Boolean>() val mapReader = CsvListReader(FileReader(stopTimesFile), CsvPreference.STANDARD_PREFERENCE) val string = getString(R.string.timetable_converting) notify(0, string, 1_030_000) println(Calendar.getInstance().timeInMillis) var row: List<Any>? = null while ({ row = mapReader.read(); row }() != null) { val stopId = row!![3] as String val outFile = File(filesDir, "gtfs_files/stop_times_$stopId.txt") val writer = CsvWriter(CsvWriterSettings()) if (headers[stopId] == null) { val h = writer.writeHeadersToString(header.asList()) outFile.appendText("$h\r\n") headers[stopId] = true } if (mapReader.rowNumber % 10_300 == 0) notify(mapReader.rowNumber, string, 1_030_000) val line = writer.writeRowToString(row!!) outFile.appendText("$line\r\n") } mapReader.close() gtfs.delete() stopTimesFile.delete() Timetable.getTimetable(this).refresh() println(Calendar.getInstance().timeInMillis) cancelNotification() sendResult(RESULT_FINISHED) } } private fun today(): String { val cal = Calendar.getInstance() val d = cal[Calendar.DAY_OF_MONTH] val m = cal[Calendar.MONTH] + 1 val y = cal[Calendar.YEAR] return "%d%02d%02d".format(y, m, d) } private fun sendResult(result: String) { val broadcastIntent = Intent() broadcastIntent.action = ACTION_DOWNLOADED broadcastIntent.addCategory(Intent.CATEGORY_DEFAULT) broadcastIntent.putExtra(EXTRA_RESULT, result) sendBroadcast(broadcastIntent) } private fun notify(progress: Int, message: String, max: Int) { if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) notifyCompat(progress, message, max) else notifyStandard(progress, message, max) } @Suppress("DEPRECATION") private fun notifyCompat(progress: Int, message: String, max: Int) { val builder = NotificationCompat.Builder(this) .setSmallIcon(R.drawable.ic_download) .setContentTitle(message) .setContentText("${(progress.toDouble() / max.toDouble() * 100).toInt()} %") .setCategory(NotificationCompat.CATEGORY_PROGRESS) .setOngoing(true) .setProgress(max, progress, false) notificationManager.notify(42, builder.build()) } @TargetApi(Build.VERSION_CODES.O) private fun notifyStandard(progress: Int, message: String, max: Int) { NotificationChannels.makeChannel(NotificationChannels.CHANNEL_UPDATES, "Updates", notificationManager) val builder = Notification.Builder(this, NotificationChannels.CHANNEL_UPDATES) .setSmallIcon(R.drawable.ic_download) .setContentTitle(message) .setContentText("${(progress.toDouble() / max.toDouble() * 100).toInt()} %") .setCategory(Notification.CATEGORY_PROGRESS) .setOngoing(true) .setProgress(max, progress, false) notificationManager.notify(42, builder.build()) } private fun notify(message: String) { if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) notifyCompat(message) else notifyStandard(message) } @Suppress("DEPRECATION") private fun notifyCompat(message: String) { val builder = NotificationCompat.Builder(this) .setSmallIcon(R.drawable.ic_download) .setContentTitle(message) .setContentText("") .setCategory(NotificationCompat.CATEGORY_PROGRESS) .setOngoing(true) .setProgress(0, 0, true) notificationManager.notify(42, builder.build()) } @TargetApi(Build.VERSION_CODES.O) private fun notifyStandard(message: String) { NotificationChannels.makeChannel(NotificationChannels.CHANNEL_UPDATES, "Updates", notificationManager) val builder = Notification.Builder(this, NotificationChannels.CHANNEL_UPDATES) .setSmallIcon(R.drawable.ic_download) .setContentTitle(message) .setContentText("") .setCategory(Notification.CATEGORY_PROGRESS) .setOngoing(true) .setProgress(0, 0, true) notificationManager.notify(42, builder.build()) } private fun cancelNotification() { notificationManager.cancel(42) } private fun copyInputStreamToFile(ins: InputStream, file: File) { try { val out = FileOutputStream(file) val buf = ByteArray(5 * 1024) var lenSum = 0.0f var len = 42 while (len > 0) { len = ins.read(buf) if (len <= 0) break out.write(buf, 0, len) lenSum += len.toFloat() / 1024.0f notify(lenSum.toInt(), getString(R.string.timetable_downloading), size) } out.close() } catch (e: Exception) { e.printStackTrace() } finally { ins.close() } } } |