package nodomain.freeyourgadget.gadgetbridge; import android.app.Application; import android.content.Context; import android.content.SharedPreferences; import android.os.Build; import android.os.Build.VERSION; import android.preference.PreferenceManager; import android.util.Log; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import java.io.File; import java.io.IOException; import java.util.concurrent.TimeUnit; import java.util.concurrent.locks.Lock; import java.util.concurrent.locks.ReentrantLock; import nodomain.freeyourgadget.gadgetbridge.database.ActivityDatabaseHandler; import nodomain.freeyourgadget.gadgetbridge.database.DBHandler; import nodomain.freeyourgadget.gadgetbridge.impl.GBDeviceService; import nodomain.freeyourgadget.gadgetbridge.model.DeviceService; import nodomain.freeyourgadget.gadgetbridge.util.FileUtils; import nodomain.freeyourgadget.gadgetbridge.util.GB; public class GBApplication extends Application { // Since this class must not log to slf4j, we use plain android.util.Log private static final String TAG = "GBApplication"; private static GBApplication context; private static ActivityDatabaseHandler mActivityDatabaseHandler; private static final Lock dbLock = new ReentrantLock(); private static DeviceService deviceService; public GBApplication() { context = this; deviceService = createDeviceService(); // don't do anything here, add it to onCreate instead } protected DeviceService createDeviceService() { return new GBDeviceService(this); } @Override public void onCreate() { super.onCreate(); // don't do anything here before we set up logging, otherwise // slf4j may be implicitly initialized before we properly configured it. setupLogging(); // For debugging problems with the logback configuration // LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory(); // print logback's internal status // StatusPrinter.print(lc); // Logger logger = LoggerFactory.getLogger(GBApplication.class); GB.environment = GBEnvironment.createDeviceEnvironment(); mActivityDatabaseHandler = new ActivityDatabaseHandler(context); // for testing DB stuff // SQLiteDatabase db = mActivityDatabaseHandler.getWritableDatabase(); // db.close(); } public static boolean isFileLoggingEnabled() { SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(GBApplication.getContext()); return prefs.getBoolean("log_to_file", false); } private void setupLogging() { if (isFileLoggingEnabled()) { try { File dir = FileUtils.getExternalFilesDir(); // used by assets/logback.xml since the location cannot be statically determined System.setProperty("GB_LOGFILES_DIR", dir.getAbsolutePath()); } catch (IOException ex) { Log.e("GBApplication", "External files dir not available, cannot log to file, ex"); System.setProperty("GB_LOGFILES_DIR", "/dev/null"); } } else { try { ch.qos.logback.classic.Logger root = (ch.qos.logback.classic.Logger) LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME); root.detachAppender("FILE"); } catch (Throwable ex) { System.out.println("Error removing logger FILE appender"); ex.printStackTrace(); } } } public static Context getContext() { return context; } public static DeviceService deviceService() { return deviceService; } /** * Returns the DBHandler instance for reading/writing or throws GBException * when that was not successful * If acquiring was successful, callers must call #releaseDB when they * are done (from the same thread that acquired the lock! * * @return the DBHandler * @throws GBException * @see #releaseDB() */ public static DBHandler acquireDB() throws GBException { try { if (dbLock.tryLock(30, TimeUnit.SECONDS)) { return mActivityDatabaseHandler; } } catch (InterruptedException ex) { Log.i(TAG, "Interrupted while waiting for DB lock"); } throw new GBException("Unable to access the database."); } /** * Releases the database lock. * * @throws IllegalMonitorStateException if the current thread is not owning the lock * @see #acquireDB() */ public static void releaseDB() { dbLock.unlock(); } public static boolean isRunningLollipopOrLater() { return VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP; } }