Esempio n. 1
0
  @Override
  public byte[] asBytes() {
    if (allocationMode == AllocationMode.HEAP) {
      ByteArrayOutputStream bos = new ByteArrayOutputStream(getElementSize() * length());
      DataOutputStream dos = new DataOutputStream(bos);

      if (dataType() == Type.DOUBLE) {
        if (doubleData == null) throw new IllegalStateException("Double array is null!");

        try {
          for (int i = 0; i < doubleData.length; i++) dos.writeDouble(doubleData[i]);
        } catch (IOException e) {
          throw new RuntimeException(e);
        }

      } else {
        if (floatData == null) throw new IllegalStateException("Double array is null!");

        try {
          for (int i = 0; i < floatData.length; i++) dos.writeFloat(floatData[i]);
        } catch (IOException e) {
          throw new RuntimeException(e);
        }
      }

      return bos.toByteArray();

    } else {
      ByteArrayOutputStream bos = new ByteArrayOutputStream();
      DataOutputStream dos = new DataOutputStream(bos);
      if (dataType() == Type.DOUBLE) {
        for (int i = 0; i < length(); i++) {
          try {
            dos.writeDouble(getDouble(i));
          } catch (IOException e) {
            e.printStackTrace();
          }
        }
      } else {
        for (int i = 0; i < length(); i++) {
          try {
            dos.writeFloat(getFloat(i));
          } catch (IOException e) {
            e.printStackTrace();
          }
        }
      }
      return bos.toByteArray();
    }
  }
Esempio n. 2
0
 protected void write(DataOutputStream out) throws IOException {
   out.writeUTF(allocationMode.name());
   out.writeInt(length());
   out.writeUTF(dataType().name());
   if (dataType() == Type.DOUBLE) {
     for (int i = 0; i < length(); i++) out.writeDouble(getDouble(i));
   } else {
     for (int i = 0; i < length(); i++) out.writeFloat(getFloat(i));
   }
 }
Esempio n. 3
0
  /** Writes the entire state of the MersenneTwister RNG to the stream */
  public void writeState(DataOutputStream stream) throws IOException {
    int len = mt.length;
    for (int x = 0; x < len; x++) stream.writeInt(mt[x]);

    len = mag01.length;
    for (int x = 0; x < len; x++) stream.writeInt(mag01[x]);

    stream.writeInt(mti);
    stream.writeDouble(__nextNextGaussian);
    stream.writeBoolean(__haveNextNextGaussian);
  }
  private byte[] getBytes(double[] array) {
    try {
      ByteArrayOutputStream bytestream = new ByteArrayOutputStream();
      DataOutputStream datastream = new DataOutputStream(bytestream);

      for (double n : array) {
        datastream.writeDouble(n);
      }
      datastream.flush();
      return bytestream.toByteArray();
    } catch (IOException ioe) {
      Logging.logger().finest(ioe.getMessage());
    }
    return null;
  }
Esempio n. 5
0
  @Override
  public void writeToFile(DataOutputStream out, Scene theScene) throws IOException {
    super.writeToFile(out, theScene);

    out.writeInt(VERSION);

    // Hardness.
    out.writeDouble((Double) getPropertyValue(0));

    // setNamePositive.
    String str = (String) getPropertyValue(1);
    out.writeInt(str.length());
    out.writeBytes(str);

    // setNameNegative.
    str = (String) getPropertyValue(2);
    out.writeInt(str.length());
    out.writeBytes(str);
  }
  @SuppressWarnings("rawtypes")
  private static void writeObjectToStream(Object obj, DataOutputStream data) throws IOException {
    Class objClass = obj.getClass();

    if (objClass.equals(Boolean.class)) {
      data.writeBoolean((Boolean) obj);
    } else if (objClass.equals(Byte.class)) {
      data.writeByte((Byte) obj);
    } else if (objClass.equals(Integer.class)) {
      data.writeInt((Integer) obj);
    } else if (objClass.equals(String.class)) {
      data.writeUTF((String) obj);
    } else if (objClass.equals(Double.class)) {
      data.writeDouble((Double) obj);
    } else if (objClass.equals(Float.class)) {
      data.writeFloat((Float) obj);
    } else if (objClass.equals(Long.class)) {
      data.writeLong((Long) obj);
    } else if (objClass.equals(Short.class)) {
      data.writeShort((Short) obj);
    }
  }
Esempio n. 7
0
  public void writeBytes(OutputStream os) throws IOException {
    // Map between any modified UTF-8 and it's constant pool index.
    Map utf8ToIndex = new HashMap();
    DataOutputStream dos = new DataOutputStream(os);
    TypeArray tags = getTags();
    int len = (int) getLength();
    int ci = 0; // constant pool index

    // collect all modified UTF-8 Strings from Constant Pool

    for (ci = 1; ci < len; ci++) {
      byte cpConstType = tags.getByteAt(ci);
      if (cpConstType == JVM_CONSTANT_Utf8) {
        Symbol sym = getSymbolAt(ci);
        utf8ToIndex.put(sym.asString(), new Short((short) ci));
      } else if (cpConstType == JVM_CONSTANT_Long || cpConstType == JVM_CONSTANT_Double) {
        ci++;
      }
    }

    for (ci = 1; ci < len; ci++) {
      int cpConstType = (int) tags.getByteAt(ci);
      // write cp_info
      // write constant type
      switch (cpConstType) {
        case JVM_CONSTANT_Utf8:
          {
            dos.writeByte(cpConstType);
            Symbol sym = getSymbolAt(ci);
            dos.writeShort((short) sym.getLength());
            dos.write(sym.asByteArray());
            if (DEBUG) debugMessage("CP[" + ci + "] = modified UTF-8 " + sym.asString());
            break;
          }

        case JVM_CONSTANT_Unicode:
          throw new IllegalArgumentException("Unicode constant!");

        case JVM_CONSTANT_Integer:
          dos.writeByte(cpConstType);
          dos.writeInt(getIntAt(ci));
          if (DEBUG) debugMessage("CP[" + ci + "] = int " + getIntAt(ci));
          break;

        case JVM_CONSTANT_Float:
          dos.writeByte(cpConstType);
          dos.writeFloat(getFloatAt(ci));
          if (DEBUG) debugMessage("CP[" + ci + "] = float " + getFloatAt(ci));
          break;

        case JVM_CONSTANT_Long:
          {
            dos.writeByte(cpConstType);
            long l = getLongAt(ci);
            // long entries occupy two pool entries
            ci++;
            dos.writeLong(l);
            break;
          }

        case JVM_CONSTANT_Double:
          dos.writeByte(cpConstType);
          dos.writeDouble(getDoubleAt(ci));
          // double entries occupy two pool entries
          ci++;
          break;

        case JVM_CONSTANT_Class:
          {
            dos.writeByte(cpConstType);
            // Klass already resolved. ConstantPool constains klassOop.
            Klass refKls = (Klass) getObjAt(ci);
            String klassName = refKls.getName().asString();
            Short s = (Short) utf8ToIndex.get(klassName);
            dos.writeShort(s.shortValue());
            if (DEBUG) debugMessage("CP[" + ci + "] = class " + s);
            break;
          }

          // case JVM_CONSTANT_ClassIndex:
        case JVM_CONSTANT_UnresolvedClass:
          {
            dos.writeByte(JVM_CONSTANT_Class);
            String klassName = getSymbolAt(ci).asString();
            Short s = (Short) utf8ToIndex.get(klassName);
            dos.writeShort(s.shortValue());
            if (DEBUG) debugMessage("CP[" + ci + "] = class " + s);
            break;
          }

        case JVM_CONSTANT_String:
          {
            dos.writeByte(cpConstType);
            String str = OopUtilities.stringOopToString(getObjAt(ci));
            Short s = (Short) utf8ToIndex.get(str);
            dos.writeShort(s.shortValue());
            if (DEBUG) debugMessage("CP[" + ci + "] = string " + s);
            break;
          }

          // case JVM_CONSTANT_StringIndex:
        case JVM_CONSTANT_UnresolvedString:
          {
            dos.writeByte(JVM_CONSTANT_String);
            String val = getSymbolAt(ci).asString();

            Short s = (Short) utf8ToIndex.get(val);
            dos.writeShort(s.shortValue());
            if (DEBUG) debugMessage("CP[" + ci + "] = string " + s);
            break;
          }

          // all external, internal method/field references
        case JVM_CONSTANT_Fieldref:
        case JVM_CONSTANT_Methodref:
        case JVM_CONSTANT_InterfaceMethodref:
          {
            dos.writeByte(cpConstType);
            int value = getIntAt(ci);
            short klassIndex = (short) extractLowShortFromInt(value);
            short nameAndTypeIndex = (short) extractHighShortFromInt(value);
            dos.writeShort(klassIndex);
            dos.writeShort(nameAndTypeIndex);
            if (DEBUG)
              debugMessage(
                  "CP[" + ci + "] = ref klass = " + klassIndex + ", N&T = " + nameAndTypeIndex);
            break;
          }

        case JVM_CONSTANT_NameAndType:
          {
            dos.writeByte(cpConstType);
            int value = getIntAt(ci);
            short nameIndex = (short) extractLowShortFromInt(value);
            short signatureIndex = (short) extractHighShortFromInt(value);
            dos.writeShort(nameIndex);
            dos.writeShort(signatureIndex);
            if (DEBUG)
              debugMessage(
                  "CP[" + ci + "] = N&T name = " + nameIndex + ", type = " + signatureIndex);
            break;
          }
      } // switch
    }
    dos.flush();
    return;
  }
Esempio n. 8
0
 /**
  * 从文件加载,同时缓存为二进制文件
  *
  * @param path
  * @return
  */
 public static MaxEntModel create(String path) {
   MaxEntModel m = new MaxEntModel();
   try {
     BufferedReader br =
         new BufferedReader(new InputStreamReader(new FileInputStream(path), "UTF-8"));
     DataOutputStream out = new DataOutputStream(new FileOutputStream(path + Predefine.BIN_EXT));
     br.readLine(); // type
     m.correctionConstant = Integer.parseInt(br.readLine()); // correctionConstant
     out.writeInt(m.correctionConstant);
     m.correctionParam = Double.parseDouble(br.readLine()); // getCorrectionParameter
     out.writeDouble(m.correctionParam);
     // label
     int numOutcomes = Integer.parseInt(br.readLine());
     out.writeInt(numOutcomes);
     String[] outcomeLabels = new String[numOutcomes];
     m.outcomeNames = outcomeLabels;
     for (int i = 0; i < numOutcomes; i++) {
       outcomeLabels[i] = br.readLine();
       TextUtility.writeString(outcomeLabels[i], out);
     }
     // pattern
     int numOCTypes = Integer.parseInt(br.readLine());
     out.writeInt(numOCTypes);
     int[][] outcomePatterns = new int[numOCTypes][];
     for (int i = 0; i < numOCTypes; i++) {
       StringTokenizer tok = new StringTokenizer(br.readLine(), " ");
       int[] infoInts = new int[tok.countTokens()];
       out.writeInt(infoInts.length);
       for (int j = 0; tok.hasMoreTokens(); j++) {
         infoInts[j] = Integer.parseInt(tok.nextToken());
         out.writeInt(infoInts[j]);
       }
       outcomePatterns[i] = infoInts;
     }
     // feature
     int NUM_PREDS = Integer.parseInt(br.readLine());
     out.writeInt(NUM_PREDS);
     String[] predLabels = new String[NUM_PREDS];
     m.pmap = new DoubleArrayTrie<Integer>();
     TreeMap<String, Integer> tmpMap = new TreeMap<String, Integer>();
     for (int i = 0; i < NUM_PREDS; i++) {
       predLabels[i] = br.readLine();
       TextUtility.writeString(predLabels[i], out);
       tmpMap.put(predLabels[i], i);
     }
     m.pmap.build(tmpMap);
     for (Map.Entry<String, Integer> entry : tmpMap.entrySet()) {
       out.writeInt(entry.getValue());
     }
     m.pmap.save(out);
     // params
     Context[] params = new Context[NUM_PREDS];
     int pid = 0;
     for (int i = 0; i < outcomePatterns.length; i++) {
       int[] outcomePattern = new int[outcomePatterns[i].length - 1];
       for (int k = 1; k < outcomePatterns[i].length; k++) {
         outcomePattern[k - 1] = outcomePatterns[i][k];
       }
       for (int j = 0; j < outcomePatterns[i][0]; j++) {
         double[] contextParameters = new double[outcomePatterns[i].length - 1];
         for (int k = 1; k < outcomePatterns[i].length; k++) {
           contextParameters[k - 1] = Double.parseDouble(br.readLine());
           out.writeDouble(contextParameters[k - 1]);
         }
         params[pid] = new Context(outcomePattern, contextParameters);
         pid++;
       }
     }
     // prior
     m.prior = new UniformPrior();
     m.prior.setLabels(outcomeLabels);
     // eval
     m.evalParams =
         new EvalParameters(params, m.correctionParam, m.correctionConstant, outcomeLabels.length);
   } catch (Exception e) {
     logger.severe("从" + path + "加载最大熵模型失败!" + TextUtility.exceptionToString(e));
     return null;
   }
   return m;
 }
  public void run() {
    int i,
        j,
        storedValues,
        sleepTime = 3000,
        timeoutCtr = 0,
        lastFlags = -1,
        trackCnt = 0,
        lastLocMethod = -5;
    String bssid;
    WMapEntry currEntry;
    DataOutputStream out;
    FileInputStream in;

    while (running) {
      try {
        if (scanData.getNoGPSExitInterval() > 0) {
          if (System.currentTimeMillis() > lastGPSTime + scanData.getNoGPSExitInterval()) {
            break;
          }
        }
        if (ScanService.scanData.getThreadMode() == OWMapAtAndroid.THREAD_MODE_UPLOAD) {
          if ((m_uploadThread != null) && (m_uploadThread.isUploading()))
            OWMapAtAndroid.sendMessage(
                ScannerHandler.MSG_SIMPLE_ALERT,
                0,
                0,
                getResources().getText(R.string.upload_in_progress));
          else m_uploadThread = new UploadThread(scanData, this, SP, false, notification, null);
          ScanService.scanData.setThreadMode(OWMapAtAndroid.THREAD_MODE_SCAN);
        } else {
          if ((posState == 0) && (scanData != null) && (scanData.isScanningEnabled())) {
            posState = 1;
            timeoutCtr = 0;
            if (scanData.getFlags() != lastFlags) {
              if ((scanData.getFlags() & OWMapAtAndroid.FLAG_NO_NET_ACCESS) == 0)
                scanData.getWifiManager().createWifiLock(WifiManager.WIFI_MODE_FULL, "OpenWLANMap");
              else
                scanData
                    .getWifiManager()
                    .createWifiLock(WifiManager.WIFI_MODE_SCAN_ONLY, "OpenWLANMap");
              lastFlags = scanData.getFlags();
            }
            if ((scanData.getFlags() & OWMapAtAndroid.FLAG_NO_NET_ACCESS) == 0)
              myWLocate.wloc_request_position(WLocate.FLAG_NO_IP_LOCATION);
            else {
              myWLocate.wloc_request_position(
                  WLocate.FLAG_NO_NET_ACCESS | WLocate.FLAG_NO_IP_LOCATION);
              //                  stopGoogleLocation();
            }
          } else if (!scanData.isScanningEnabled()) {
            try {
              trackCnt += 1500;
              Thread.sleep(1500);
            } catch (InterruptedException ie) {

            }
          }
          if (posState == 1) {
            // sleep while waiting for result
            try {
              trackCnt += 2500;
              java.lang.Thread.sleep(2500); // is interrupted from result handler
              timeoutCtr++;
              if (timeoutCtr > 3) {
                timeoutCtr = 0;
                posState = 0;
              }
            } catch (InterruptedException ie) {
            }
          }
          if ((posState == 2) || (posState == 100)) {
            loc_info locationInfo;
            NetworkInfo mWifi = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);

            locationInfo = myWLocate.last_location_info();
            if (lastLocMethod != locationInfo.lastLocMethod) {
              scanData.getmView().setMode(locationInfo.lastLocMethod);
              scanData.getmView().postInvalidate();
              lastLocMethod = locationInfo.lastLocMethod;
            }
            if (posState == 100) locationInfo.lastLocMethod = -1;
            OWMapAtAndroid.sendMessage(
                OWMapAtAndroid.ScannerHandler.MSG_UPD_LOC_STATE,
                (int) (lastRadius * 1000),
                locationInfo.lastLocMethod,
                locationInfo);

            if (SP.getBoolean("autoConnect", false)) {
              if (!mWifi.isConnected()) {
                for (i = 0; i < locationInfo.wifiScanResult.size(); i++) {
                  ScanResult result;

                  result = locationInfo.wifiScanResult.get(i);
                  result.capabilities = result.capabilities.toUpperCase(Locale.US);
                  if ((isFreeHotspot(result) & WMapEntry.FLAG_IS_FREIFUNK) != 0) {
                    // auto-connect to this open network

                    WifiConfiguration wifiConfig = new WifiConfiguration();
                    wifiConfig.BSSID = result.BSSID;
                    wifiConfig.priority = 1;
                    wifiConfig.allowedKeyManagement.set(KeyMgmt.NONE);
                    wifiConfig.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);
                    wifiConfig.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.OPEN);
                    wifiConfig.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
                    wifiConfig.status = WifiConfiguration.Status.ENABLED;

                    int netId = scanData.getWifiManager().addNetwork(wifiConfig);
                    scanData.getWifiManager().enableNetwork(netId, true);
                  }
                }
              }
            }
            if ((posValid)
                && (locationInfo.wifiScanResult != null)
                && (locationInfo.wifiScanResult.size() > 0)) {
              boolean foundExisting;

              for (i = 0; i < locationInfo.wifiScanResult.size(); i++) {
                ScanResult result;

                result = locationInfo.wifiScanResult.get(i);
                bssid = result.BSSID.replace(":", "").replace(".", "").toUpperCase(Locale.US);
                if (bssid.equalsIgnoreCase("000000000000")) break;
                foundExisting = false;
                scanData.getLock().lock();
                for (j = 0; j < scanData.getWmapList().size(); j++) {
                  currEntry = scanData.getWmapList().elementAt(j);
                  if (currEntry.getBSSID().equalsIgnoreCase(bssid)) {
                    currEntry.setPos(lastLat, lastLon);
                    foundExisting = true;
                    break;
                  }
                }
                if (!foundExisting) {
                  String lowerSSID;

                  storedValues = scanData.incStoredValues();
                  scanData.getmView().setValue(storedValues);
                  scanData.getmView().postInvalidate();
                  currEntry = new WMapEntry(bssid, result.SSID, lastLat, lastLon, storedValues);
                  lowerSSID = result.SSID.toLowerCase(Locale.US);
                  if ((lowerSSID.endsWith("_nomap"))
                      || // Google unsubscibe option
                      (lowerSSID.contains("iphone"))
                      || // mobile AP
                      (lowerSSID.contains("android"))
                      || // mobile AP
                      (lowerSSID.contains("motorola"))
                      || // mobile AP
                      (lowerSSID.contains("deinbus.de"))
                      || // WLAN network on board of German bus
                      (lowerSSID.contains("fernbus"))
                      || // WLAN network on board of German bus
                      (lowerSSID.contains("flixbus"))
                      || // WLAN network on board of German bus
                      (lowerSSID.contains("ecolines"))
                      || // WLAN network on board of German bus
                      (lowerSSID.contains("eurolines_wifi"))
                      || // WLAN network on board of German bus
                      (lowerSSID.contains("contiki-wifi"))
                      || // WLAN network on board of bus
                      (lowerSSID.contains("guest@ms "))
                      || // WLAN network on Hurtigruten ships
                      (lowerSSID.contains("admin@ms "))
                      || // WLAN network on Hurtigruten ships
                      (lowerSSID.contains("nsb_interakti"))
                      || // WLAN network in NSB trains
                      (lowerSSID.equals("southwestwifi"))) // WLAN network on Southwest flights
                  currEntry.setFlags(currEntry.getFlags() | WMapEntry.FLAG_IS_NOMAP);
                  else currEntry.setFlags(currEntry.getFlags() | isFreeHotspot(result));
                  if (isFreeHotspot(currEntry.getFlags())) scanData.incFreeHotspotWLANs();
                  scanData.getWmapList().add(currEntry);
                  if ((scanData.getUploadThres() > 0)
                      && (storedValues > scanData.getUploadThres())) {
                    if ((m_uploadThread == null) || (!m_uploadThread.isUploading())) {
                      if (mWifi.isConnected()) {
                        m_uploadThread =
                            new UploadThread(scanData, this, SP, true, notification, mWifi);
                      }
                    }
                  }
                }
                result.capabilities = result.capabilities.toUpperCase(Locale.US);
                scanData.getLock().unlock();
              }
            }
            scanData.getLock().lock();
            for (j = 0; j < scanData.getWmapList().size(); j++) {
              currEntry = scanData.getWmapList().elementAt(j);
              if ((currEntry.getLastUpdate() + OWMapAtAndroid.RECV_TIMEOUT
                      < System.currentTimeMillis())
                  && ((currEntry.getFlags() & WMapEntry.FLAG_IS_VISIBLE) == 0)) {
                scanData.getWmapList().remove(j);
                if (currEntry.posIsValid()) {
                  int padBytes = 0, k;

                  try {
                    in = scanData.getCtx().openFileInput(OWMapAtAndroid.WSCAN_FILE);
                    padBytes = in.available() % 28;
                    in.close();
                    if (padBytes > 0) padBytes = 28 - padBytes;
                  } catch (IOException ioe) {
                    ioe.printStackTrace();
                  }
                  try {
                    out =
                        new DataOutputStream(
                            scanData
                                .getCtx()
                                .openFileOutput(
                                    OWMapAtAndroid.WSCAN_FILE,
                                    Context.MODE_PRIVATE | Context.MODE_APPEND));
                    if (padBytes > 0) for (k = 0; k < padBytes; k++) out.writeByte(0);
                    out.write(currEntry.getBSSID().getBytes(), 0, 12);
                    if ((currEntry.getFlags() & WMapEntry.FLAG_IS_NOMAP) != 0) {
                      out.writeDouble(0.0);
                      out.writeDouble(0.0);
                    } else {
                      out.writeDouble(currEntry.getLat());
                      out.writeDouble(currEntry.getLon());
                    }
                    out.close();
                  } catch (IOException ioe) {
                    ioe.printStackTrace();
                  }

                  if ((currEntry.getFlags()
                          & (WMapEntry.FLAG_IS_FREIFUNK | WMapEntry.FLAG_IS_NOMAP))
                      == WMapEntry.FLAG_IS_FREIFUNK) {
                    padBytes = 0;
                    try {
                      in = scanData.getCtx().openFileInput(OWMapAtAndroid.WFREI_FILE);
                      padBytes = in.available() % 12;
                      in.close();
                      if (padBytes > 0) padBytes = 12 - padBytes;
                    } catch (IOException ioe) {
                      ioe.printStackTrace();
                    }
                    try {
                      out =
                          new DataOutputStream(
                              scanData
                                  .getCtx()
                                  .openFileOutput(
                                      OWMapAtAndroid.WFREI_FILE,
                                      Context.MODE_PRIVATE | Context.MODE_APPEND));
                      if (padBytes > 0) for (k = 0; k < padBytes; k++) out.writeByte(0);
                      out.write(currEntry.getBSSID().getBytes(), 0, 12);
                      out.close();
                    } catch (IOException ioe) {
                      ioe.printStackTrace();
                    }
                  }
                }
              }
              //               flushData(false);
            }
            scanData.getLock().unlock();
            m_lastSpeed = locationInfo.lastSpeed;
            if (!SP.getBoolean("adaptiveScanning", true)) sleepTime = 500;
            else if (locationInfo.lastSpeed > 90) sleepTime = 350;
            else if (locationInfo.lastSpeed < 0)
              sleepTime = 1300; // no speed information, may be because of WLAN localisation
            else if (locationInfo.lastSpeed < 6) sleepTime = 2500; // user seems to walk
            else {
              double f;

              f = 1.0 - (locationInfo.lastSpeed / 90.0);
              sleepTime = (int) ((1000.0 * f) + 350);
            }

            try {
              trackCnt += sleepTime;
              java.lang.Thread.sleep(sleepTime); // sleep between scans
            } catch (InterruptedException ie) {

            }
            posState = 0;
          }
        }
      } catch (NullPointerException npe) // in case the parent activity dies too fast
      {
        npe.printStackTrace();
      }
      if ((trackCnt > 500000) && (lastLat != 0) && (lastLon != 0)) {
        if (SP.getBoolean("track", false)) new UploadPositionTask().execute(null, null, null);
        trackCnt = 0;
      }
    }
    onDestroy(); // remove all resources (in case the thread was stopped due to some other reason
  }