ref: 161e88895a382409bbb3c332bc2f904026d87e43
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.google.gson.Gson import com.google.gson.JsonArray import com.google.gson.JsonObject import com.univocity.parsers.csv.CsvParser import com.univocity.parsers.csv.CsvParserSettings 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.getSecondaryExternalFilesDir import ml.adamsprogs.bimba.models.Timetable import java.net.ConnectException import java.net.URL import java.util.Calendar import javax.net.ssl.HttpsURLConnection import kotlin.collections.* 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?) { 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 } sendResult(RESULT_UP_TO_DATE) return val httpCon: HttpsURLConnection try { val url = URL("https://adamsprogs.ml/gtfs") httpCon = url.openConnection() as HttpsURLConnection if (httpCon.responseCode == HttpsURLConnection.HTTP_NOT_MODIFIED) { sendResult(RESULT_UP_TO_DATE) return } if (httpCon.responseCode != HttpsURLConnection.HTTP_OK) { sendResult(RESULT_NO_CONNECTIVITY) return } } catch (e: IOException) { sendResult(RESULT_NO_CONNECTIVITY) return } catch (e: EOFException) { sendResult(RESULT_NO_CONNECTIVITY) return } catch (e: 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 && !force) { sendResult(RESULT_UP_TO_DATE) return } notify(0, getString(R.string.timetable_downloading), size) val gtfs = File(getSecondaryExternalFilesDir(), "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(getSecondaryExternalFilesDir(), "gtfs_files") target.deleteRecursively() target.mkdir() ZipArchive.unzip(gtfs.path, target.path, "") val string = getString(R.string.timetable_converting) notify(0, string, 1_030_000) println(Calendar.getInstance().timeInMillis) gtfs.delete() createIndices() Timetable.getTimetable(this).refresh() println(Calendar.getInstance().timeInMillis) cancelNotification() sendResult(RESULT_FINISHED) } } private fun createIndices() { val settings = CsvParserSettings() settings.format.setLineSeparator("\r\n") settings.format.quote = '"' settings.isHeaderExtractionEnabled = true val parser = CsvParser(settings) val stopIndexFile = File(getSecondaryExternalFilesDir(), "gtfs_files/stop_index.yml") val tripIndexFile = File(getSecondaryExternalFilesDir(), "gtfs_files/trip_index.yml") val stopsIndex = HashMap<String, List<Long>>() val tripsIndex = HashMap<String, List<Long>>() parser.parseAll(File(getSecondaryExternalFilesDir(), "gtfs_files/trips.txt")).forEach { tripsIndex[it[2]] = ArrayList() } parser.parseAll(File(getSecondaryExternalFilesDir(), "gtfs_files/stops.txt")).forEach { stopsIndex[it[0]] = ArrayList() } val string = getString(R.string.timetable_converting) parser.beginParsing(File(getSecondaryExternalFilesDir(), "gtfs_files/stop_times.txt")) var line: Array<String>? = null while ({ line = parser.parseNext(); line }() != null) { val lineNumber = parser.context.currentLine() (tripsIndex[line!![0]] as ArrayList).add(lineNumber) (stopsIndex[line!![3]] as ArrayList).add(lineNumber) if (lineNumber % 10_300 == 0L) notify(lineNumber.toInt(), string, 1_030_000) } println(Calendar.getInstance().timeInMillis) stopsIndex.filter { it.value.contains(0) }.forEach { println("${it.key}: ${it.value.joinToString()}") } println(Calendar.getInstance().timeInMillis) serialiseIndex(stopsIndex, stopIndexFile) serialiseIndex(tripsIndex, tripIndexFile) } private fun serialiseIndex(index: HashMap<String, List<Long>>, file: File) { val stopsRootObject = JsonObject() index.forEach { val stop = JsonArray() it.value.forEach { stop.add(it) } stopsRootObject.add(it.key, stop) } val writer = BufferedWriter(file.writer()) writer.write(Gson().toJson(stopsRootObject)) writer.close() } private fun today(): String { val cal = Calendar.getInstance() val d = cal[Calendar.DAY_OF_MONTH] val m = cal[Calendar.MONTH] + 1 val y = cal[Calendar.YEAR] return "%d%02d%02d".format(y, m, d) } private fun sendResult(result: String) { val broadcastIntent = Intent() broadcastIntent.action = ACTION_DOWNLOADED broadcastIntent.addCategory(Intent.CATEGORY_DEFAULT) broadcastIntent.putExtra(EXTRA_RESULT, result) sendBroadcast(broadcastIntent) } private fun notify(progress: Int, message: String, max: Int) { if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) notifyCompat(progress, message, max) else notifyStandard(progress, message, max) } @Suppress("DEPRECATION") private fun notifyCompat(progress: Int, message: String, max: Int) { val builder = NotificationCompat.Builder(this) .setSmallIcon(R.drawable.ic_download) .setContentTitle(message) .setContentText("${(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() } } } |