Ejemplo n.º 1
0
  public void marshal(DataOutputStream dos) {
    super.marshal(dos);
    try {
      minefieldID.marshal(dos);
      requestingEntityID.marshal(dos);
      dos.writeByte((byte) requestID);
      dos.writeByte((byte) requestedPerimeterPoints.size());
      dos.writeByte((byte) pad2);
      dos.writeByte((byte) sensorTypes.size());
      dos.writeInt((int) dataFilter);
      requestedMineType.marshal(dos);

      for (int idx = 0; idx < requestedPerimeterPoints.size(); idx++) {
        Point aPoint = requestedPerimeterPoints.get(idx);
        aPoint.marshal(dos);
      } // end of list marshalling

      for (int idx = 0; idx < sensorTypes.size(); idx++) {
        TwoByteChunk aTwoByteChunk = sensorTypes.get(idx);
        aTwoByteChunk.marshal(dos);
      } // end of list marshalling

    } // end try
    catch (Exception e) {
      System.out.println(e);
    }
  } // end of marshal method
Ejemplo n.º 2
0
 // -----------------------------------------------------------
 // for "SrvRqst"
 // find the matched URLs with (type, scope, predicate, ltag)
 // return: error code (short)
 //         number of matched URLs (short)
 //         URL blocks (decided bt previous #URL)
 // -----------------------------------------------------------
 public synchronized byte[] getMatchedURL(String type, String scope, String pred, String ltag) {
   byte[] buf = null;
   int ecode = Const.OK;
   if (!Util.shareString(daf.getScope(), scope, ",")) {
     ecode = Const.SCOPE_NOT_SUPPORTED;
   }
   b.reset();
   try {
     int count = 0;
     d.writeShort(ecode); // error code
     d.writeShort(count); // URL count, place holder
     if (ecode == Const.OK) { // no error, find matched URLs
       Iterator values = table.values().iterator();
       while (values.hasNext()) {
         Entry e = (Entry) values.next();
         if (e.match(type, scope, pred, ltag)) {
           count++;
           d.writeByte(0);
           d.writeShort(e.getLifetime());
           d.writeShort(e.getURL().length());
           d.writeBytes(e.getURL());
           d.writeByte(0);
         }
       }
     }
     buf = b.toByteArray();
     if (count > 0) Util.writeInt(buf, 2, count, 2); // update count
   } catch (Exception e) {
     if (ServiceLocationManager.displayMSLPTrace) e.printStackTrace();
   }
   return buf;
 }
Ejemplo n.º 3
0
  public void marshal(DataOutputStream dos) {
    super.marshal(dos);
    try {
      minefieldID.marshal(dos);
      requestingEntityID.marshal(dos);
      dos.writeShort((short) minefieldSequenceNumbeer);
      dos.writeByte((byte) requestID);
      dos.writeByte((byte) pduSequenceNumber);
      dos.writeByte((byte) numberOfPdus);
      dos.writeByte((byte) mineLocation.size());
      dos.writeByte((byte) sensorTypes.size());
      dos.writeByte((byte) pad2);
      dos.writeInt((int) dataFilter);
      mineType.marshal(dos);

      for (int idx = 0; idx < sensorTypes.size(); idx++) {
        TwoByteChunk aTwoByteChunk = sensorTypes.get(idx);
        aTwoByteChunk.marshal(dos);
      } // end of list marshalling

      dos.writeByte((byte) pad3);

      for (int idx = 0; idx < mineLocation.size(); idx++) {
        Vector3Float aVector3Float = mineLocation.get(idx);
        aVector3Float.marshal(dos);
      } // end of list marshalling

    } // end try
    catch (Exception e) {
      System.out.println(e);
    }
  } // end of marshal method
Ejemplo n.º 4
0
 private void sendRequest(long objectId, long requestId, Request r) throws IOException {
   DataOutputStream out = newFlusher();
   out.writeByte(REQUEST);
   out.writeLong(objectId);
   out.writeLong(requestId);
   r.serialize(out);
   out.writeBoolean(false);
   out.flush();
 }
Ejemplo n.º 5
0
  /**
   * Generates a byte array representing the contents of this page. Used to serialize this page to
   * disk.
   *
   * <p>The invariant here is that it should be possible to pass the byte array generated by
   * getPageData to the HeapPage constructor and have it produce an identical HeapPage object.
   *
   * @see #HeapPage
   * @return A byte array correspond to the bytes of this page.
   */
  public byte[] getPageData() {
    // int len = header.length*4 + BufferPool.PAGE_SIZE;
    int len = BufferPool.PAGE_SIZE;
    ByteArrayOutputStream baos = new ByteArrayOutputStream(len);
    DataOutputStream dos = new DataOutputStream(baos);

    // create the header of the page
    try {
      dos.write(header.getHeader());
    } catch (IOException e) {
      // this really shouldn't happen
      e.printStackTrace();
    }

    // create the tuples
    for (int i = 0; i < numSlots; i++) {

      // empty slot
      if (!getSlot(i)) {
        for (int j = 0; j < td.getSize(); j++) {
          try {
            dos.writeByte(0);
          } catch (IOException e) {
            e.printStackTrace();
          }
        }
        continue;
      }

      // non-empty slot
      for (int j = 0; j < td.numFields(); j++) {
        Field f = tuples[i].getField(j);
        try {
          f.serialize(dos);
        } catch (IOException e) {
          e.printStackTrace();
        }
      }
    }

    // padding
    int zerolen = BufferPool.PAGE_SIZE - numSlots * td.getSize() - header.length();
    byte[] zeroes = new byte[zerolen];
    try {
      dos.write(zeroes, 0, zerolen);
    } catch (IOException e) {
      e.printStackTrace();
    }

    try {
      dos.flush();
    } catch (IOException e) {
      e.printStackTrace();
    }

    return baos.toByteArray();
  }
Ejemplo n.º 6
0
  private static void writeWatchableObject(
      DataOutputStream par0DataOutputStream, WatchableObject par1WatchableObject)
      throws IOException {
    int i =
        (par1WatchableObject.getObjectType() << 5 | par1WatchableObject.getDataValueId() & 0x1f)
            & 0xff;
    par0DataOutputStream.writeByte(i);

    switch (par1WatchableObject.getObjectType()) {
      case 0:
        par0DataOutputStream.writeByte(((Byte) par1WatchableObject.getObject()).byteValue());
        break;

      case 1:
        par0DataOutputStream.writeShort(((Short) par1WatchableObject.getObject()).shortValue());
        break;

      case 2:
        par0DataOutputStream.writeInt(((Integer) par1WatchableObject.getObject()).intValue());
        break;

      case 3:
        par0DataOutputStream.writeFloat(((Float) par1WatchableObject.getObject()).floatValue());
        break;

      case 4:
        Packet.writeString((String) par1WatchableObject.getObject(), par0DataOutputStream);
        break;

      case 5:
        ItemStack itemstack = (ItemStack) par1WatchableObject.getObject();
        par0DataOutputStream.writeShort(itemstack.getItem().shiftedIndex);
        par0DataOutputStream.writeByte(itemstack.stackSize);
        par0DataOutputStream.writeShort(itemstack.getItemDamage());
        break;

      case 6:
        ChunkCoordinates chunkcoordinates = (ChunkCoordinates) par1WatchableObject.getObject();
        par0DataOutputStream.writeInt(chunkcoordinates.posX);
        par0DataOutputStream.writeInt(chunkcoordinates.posY);
        par0DataOutputStream.writeInt(chunkcoordinates.posZ);
        break;
    }
  }
Ejemplo n.º 7
0
  public void writeWatchableObjects(DataOutputStream par1DataOutputStream) throws IOException {
    WatchableObject watchableobject;

    for (Iterator iterator = watchedObjects.values().iterator();
        iterator.hasNext();
        writeWatchableObject(par1DataOutputStream, watchableobject)) {
      watchableobject = (WatchableObject) iterator.next();
    }

    par1DataOutputStream.writeByte(127);
  }
Ejemplo n.º 8
0
 // return xml string
 public boolean marshall(DataOutputStream d) {
   try {
     d.writeByte(succ.booleanValue() ? 1 : 0);
     d.writeInt(code);
     byte[] sb_1 = msg.getBytes();
     d.writeInt(sb_1.length);
     d.write(sb_1, 0, sb_1.length);
   } catch (Exception e) {
     return false;
   }
   return true;
 }
Ejemplo n.º 9
0
  public void marshal(DataOutputStream dos) {
    try {

      for (int idx = 0; idx < otherParameters.length; idx++) {
        dos.writeByte(otherParameters[idx]);
      } // end of array marshaling

    } // end try
    catch (Exception e) {
      System.out.println(e);
    }
  } // end of marshal method
Ejemplo n.º 10
0
  /** writes every object in passed list to dataoutputstream, terminated by 0x7F */
  public static void writeObjectsInListToStream(
      List par0List, DataOutputStream par1DataOutputStream) throws IOException {
    if (par0List != null) {
      WatchableObject watchableobject;

      for (Iterator iterator = par0List.iterator();
          iterator.hasNext();
          writeWatchableObject(par1DataOutputStream, watchableobject)) {
        watchableobject = (WatchableObject) iterator.next();
      }
    }

    par1DataOutputStream.writeByte(127);
  }
  /**
   * Acknowledge remote endpoint's closing of connection.
   *
   * @param info connection information structure
   */
  void sendCloseAck(MultiplexConnectionInfo info) throws IOException {
    synchronized (dataOut) {
      if (alive && !info.closed)
        try {
          dataOut.writeByte(CLOSEACK);
          dataOut.writeShort(info.id);
          dataOut.flush();
          info.closed = true;
        } catch (IOException e) {
          multiplexLog.log(Log.BRIEF, "exception: ", e);

          shutDown();
          throw e;
        }
    }
  }
  /**
   * Send request for more data on connection to remote endpoint.
   *
   * @param info connection information structure
   * @param len number of more bytes that can be received
   */
  void sendRequest(MultiplexConnectionInfo info, int len) throws IOException {
    synchronized (dataOut) {
      if (alive && !info.closed)
        try {
          dataOut.writeByte(REQUEST);
          dataOut.writeShort(info.id);
          dataOut.writeInt(len);
          dataOut.flush();
        } catch (IOException e) {
          multiplexLog.log(Log.BRIEF, "exception: ", e);

          shutDown();
          throw e;
        }
    }
  }
Ejemplo n.º 13
0
 private void sendResponse(long requestId, Object value, Class<?> declaredType)
     throws IOException {
   DataOutputStream out = newFlusher();
   out.writeByte(RESPONSE);
   out.writeLong(requestId);
   if (value == null) {
     out.writeBoolean(false);
   } else {
     out.writeBoolean(true);
     Class<?> clazz = value.getClass();
     out.writeUTF(clazz.getName());
     Serializer<Object> s = serializerFor(clazz, declaredType);
     s.serialize(out, value);
   }
   out.writeBoolean(false);
   out.flush();
 }
  /**
   * Send packet of requested data on connection to remote endpoint.
   *
   * @param info connection information structure
   * @param buf array containing bytes to send
   * @param off offset of first array index of packet
   * @param len number of bytes in packet to send
   */
  void sendTransmit(MultiplexConnectionInfo info, byte buf[], int off, int len) throws IOException {
    synchronized (dataOut) {
      if (alive && !info.closed)
        try {
          dataOut.writeByte(TRANSMIT);
          dataOut.writeShort(info.id);
          dataOut.writeInt(len);
          dataOut.write(buf, off, len);
          dataOut.flush();
        } catch (IOException e) {
          multiplexLog.log(Log.BRIEF, "exception: ", e);

          shutDown();
          throw e;
        }
    }
  }
  /** Initiate a new multiplexed connection through the underlying connection. */
  public synchronized TCPConnection openConnection() throws IOException {
    // generate ID that should not be already used
    // If all possible 32768 IDs are used,
    // this method will block searching for a new ID forever.
    int id;
    do {
      lastID = (++lastID) & 0x7FFF;
      id = lastID;

      // The orig flag (copied to the high bit of the ID) is used
      // to have two distinct ranges to choose IDs from for the
      // two endpoints.
      if (orig) id |= 0x8000;
    } while (connectionTable.get(id) != null);

    // create multiplexing streams and bookkeeping information
    MultiplexConnectionInfo info = new MultiplexConnectionInfo(id);
    info.in = new MultiplexInputStream(this, info, 2048);
    info.out = new MultiplexOutputStream(this, info, 2048);

    // add to connection table if multiplexer has not died
    synchronized (connectionTable) {
      if (!alive) throw new IOException("Multiplexer connection dead");
      if (numConnections >= maxConnections)
        throw new IOException(
            "Cannot exceed " + maxConnections + " simultaneous multiplexed connections");
      connectionTable.put(id, info);
      ++numConnections;
    }

    // inform remote endpoint of new connection
    synchronized (dataOut) {
      try {
        dataOut.writeByte(OPEN);
        dataOut.writeShort(id);
        dataOut.flush();
      } catch (IOException e) {
        multiplexLog.log(Log.BRIEF, "exception: ", e);

        shutDown();
        throw e;
      }
    }

    return new TCPConnection(channel, info.in, info.out);
  }
  /**
   * Writes integer value into stream
   *
   * @param value integer value to write
   */
  public void writeInt(int value) throws java.io.IOException {

    if (isBigEndian) {
      outputStream.writeByte((value >> 24) & 0xFF);
      outputStream.writeByte((value >> 16) & 0xFF);
      outputStream.writeByte((value >> 8) & 0xFF);
      outputStream.writeByte(value & 0xFF);
    } else {
      outputStream.writeByte(value & 0xFF);
      outputStream.writeByte((value >> 8) & 0xFF);
      outputStream.writeByte((value >> 16) & 0xFF);
      outputStream.writeByte((value >> 24) & 0xFF);
    }
  }
Ejemplo n.º 17
0
 public void marshal(DataOutputStream dos) {
   try {
     dos.writeByte((byte) recordType);
     dos.writeByte((byte) changeIndicator);
     dos.writeByte((byte) associationStatus);
     dos.writeByte((byte) associationType);
     entityID.marshal(dos);
     dos.writeShort((short) ownStationLocation);
     dos.writeByte((byte) physicalConnectionType);
     dos.writeByte((byte) groupMemberType);
     dos.writeShort((short) groupNumber);
   } // end try
   catch (Exception e) {
     System.out.println(e);
   }
 } // end of marshal method
  @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);
    }
  }
Ejemplo n.º 19
0
  void storeConfig() {
    DataOutputStream out;

    try {
      out = new DataOutputStream(openFileOutput("wscnprefs", Context.MODE_PRIVATE));
      out.writeByte(1); // version
      out.writeInt(ScanService.scanData.getFlags()); // operation flags;
      out.writeInt(ScanService.scanData.getStoredValues()); // number of currently stored values
      out.writeInt(ScanService.scanData.getUploadedCount());
      out.writeInt(ScanService.scanData.getUploadedRank());
      out.writeInt(0); // Open WLANs, no longer used
      out.writeInt(ScanService.scanData.getFreeHotspotWLANs());
      out.writeFloat(ScanService.scanData.getTelemetryData().getCorrAccelX());
      out.writeFloat(ScanService.scanData.getTelemetryData().getCorrAccelY());
      out.writeFloat(ScanService.scanData.getTelemetryData().getCorrAccelZ());
      out.writeFloat(ScanService.scanData.getTelemetryData().getCorrCoG());
      out.writeFloat(ScanService.scanData.getTelemetryData().getCorrOrientY());
      out.writeFloat(ScanService.scanData.getTelemetryData().getCorrOrientZ());
      out.close();
    } catch (IOException ioe) {
      ioe.printStackTrace();
    }
  }
Ejemplo n.º 20
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;
  }
Ejemplo n.º 21
0
  /** Method to keep the connection alive with the name server */
  public void run() {
    boolean connected = false;
    int ticket = 0;
    int serial = -1;
    int time = 1000;

    DatagramPacket inPack = new DatagramPacket(new byte[1024], 1024);
    DatagramPacket outPack = new DatagramPacket(new byte[1024], 1024);

    ByteArrayOutputStream outBuf = new ByteArrayOutputStream();
    DataInputStream inData;
    DataOutputStream outData = new DataOutputStream(outBuf);

    while (running) {
      if (!connected) { // Thoust ought Register thine self
        try {
          outBuf.reset();
          outData.writeByte(0);
          outData.writeUTF(userName);
          outData.writeInt(portNum);
          outData.flush();
          outPack.setData(outBuf.toByteArray());
          nameServer.send(outPack);
        } catch (IOException e) {
          System.err.println("LeetActive: " + e);
        }
      } else { // Thoust ought Renew thine self
        try {
          outBuf.reset();
          outData.writeByte(2);
          outData.writeInt(ticket);
          outData.flush();
          outPack.setData(outBuf.toByteArray());
          nameServer.send(outPack);
        } catch (IOException e) {
          System.err.println(e);
        }
      }

      // Now we will receive a packet...
      try {
        nameServer.receive(inPack);
        inData = new DataInputStream(new ByteArrayInputStream(inPack.getData()));

        byte type = inData.readByte();

        if (type == 1) { // Twas a ticket packet
          try {
            ticket = inData.readInt();
            if (ticket > -1) { // Make sure its not evil
              connected = true;
            } else {
              connected = false;
            }
            time = inData.readInt();
          } catch (IOException e) {
            System.err.println(e);
          }
        }

        if (type == 5) { // Twas an update packet
          try {
            int s = inData.readInt();
            if (s > serial) { // Make sure its not old
              serial = s;
              int size = inData.readInt();
              ArrayList newList = new ArrayList(size);

              for (int x = 0; x < size; x++) {
                newList.add(
                    new String(
                        "" + inData.readUTF() + "@" + inData.readUTF() + ":" + inData.readInt()));
              }

              if (!newList.equals(hostList)) {
                hostList = newList;
                updated = true;
              }
            }
          } catch (IOException e) {
            System.err.println(e);
          }
        }
      } catch (SocketTimeoutException e) { // Server hates you
        connected = false;
        System.err.println(e);
      } catch (IOException e) {
        System.err.println(e);
      }

      try { // Take a nap
        sleep(time / 4);
      } catch (InterruptedException e) {
      }
    }
  }
Ejemplo n.º 22
0
  /**
   * Process and loop until told to stop. A callback_done will stop the loop and will return a
   * result. Otherwise null is returned.
   */
  public Object run() throws CommandException {
    Object result = null;
    boolean shutdown = false;
    boolean closeWhenDone = true;
    Commands.ValueObject valueObject =
        new Commands.ValueObject(); // Working value object so not continually recreated.
    InvokableValueSender valueSender =
        new InvokableValueSender(); // Working valuesender so not continually recreated.
    try {
      boolean doLoop = true;

      /**
       * Note: In the cases below you will see a lot of finally clauses that null variables out.
       * This is because this is a long running loop, and variables declared within blocks are not
       * garbage collected until the method is terminated, so these variables once set would never
       * be GC'd. The nulling at the end of the case makes sure that any of those objects set are
       * now available for garbage collection when necessary.
       */
      while (doLoop && isConnected()) {
        byte cmd = 0;
        try {
          if (LINUX_1_3) socket.setSoTimeout(1000); // Linux 1.3 bug, see comment on LINUX_1_3
          cmd = in.readByte();
          if (LINUX_1_3 && isConnected())
            socket.setSoTimeout(0); // Linux 1.3 bug, see comment on LINUX_1_3
        } catch (InterruptedIOException e) {
          continue; // Timeout, try again
        }
        switch (cmd) {
          case Commands.QUIT_CONNECTION:
            doLoop = false;
            break; // Close this connection

          case Commands.TERMINATE_SERVER:
            doLoop = false;
            shutdown = true; // Shutdown everything
            break;

          case Commands.GET_CLASS:
            String className = in.readUTF();
            Class aClass = null;
            Class superClass = null;
            String superClassName = null;
            boolean added = false;
            try {
              aClass =
                  Class.forName(
                      className); // Turns out using JNI format for array type will work fine.

              added = server.getIdentityID(aClass, valueObject);
              boolean isInterface = aClass.isInterface();
              boolean isAbstract = java.lang.reflect.Modifier.isAbstract(aClass.getModifiers());
              superClass = aClass.getSuperclass();
              superClassName = (superClass != null) ? superClass.getName() : ""; // $NON-NLS-1$
              out.writeByte(Commands.GET_CLASS_RETURN);
              out.writeInt(valueObject.objectID);
              out.writeBoolean(isInterface);
              out.writeBoolean(isAbstract);
              out.writeUTF(superClassName);
              out.flush();
            } catch (ClassNotFoundException e) {
              valueObject.set();
              Commands.sendErrorCommand(out, Commands.GET_CLASS_NOT_FOUND, valueObject);
            } catch (ExceptionInInitializerError e) {
              sendException(e.getException(), valueObject, out);
            } catch (LinkageError e) {
              sendException(e, valueObject, out);
            } catch (Throwable e) {
              // Something bad, did we add a class? If we did remove it from the table.
              if (added) server.removeObject(server.getObject(valueObject.objectID));
              throw e;
            } finally {
              // clear out for GC to work.
              className = null;
              aClass = null;
              superClass = null;
              superClassName = null;
              valueObject.set();
            }
            break;

          case Commands.GET_CLASS_FROM_ID:
            int classID = in.readInt();
            try {
              aClass = (Class) server.getObject(classID);
              boolean isInterface = aClass.isInterface();
              boolean isAbstract = java.lang.reflect.Modifier.isAbstract(aClass.getModifiers());
              superClass = aClass.getSuperclass();
              superClassName = (superClass != null) ? superClass.getName() : ""; // $NON-NLS-1$
              out.writeByte(Commands.GET_CLASS_ID_RETURN);
              out.writeUTF(aClass.getName());
              out.writeBoolean(isInterface);
              out.writeBoolean(isAbstract);
              out.writeUTF(superClassName);
              out.flush();
            } catch (ClassCastException e) {
              valueObject.set();
              Commands.sendErrorCommand(out, Commands.CLASS_CAST_EXCEPTION, valueObject);
            } finally {
              // clear out for GC to work.
              aClass = null;
              superClass = null;
              superClassName = null;
              valueObject.set();
            }
            break;

          case Commands.GET_OBJECT_DATA:
            int objectID = in.readInt();
            Object anObject = null;
            try {
              anObject = server.getObject(objectID);
              valueObject.setObjectID(objectID, server.getIdentityID(anObject.getClass()));
              Commands.writeValue(out, valueObject, true);
            } catch (ClassCastException e) {
              valueObject.set();
              Commands.sendErrorCommand(out, Commands.CLASS_CAST_EXCEPTION, valueObject);
            } finally {
              anObject = null; // Clear out for GC to work
              valueObject.set();
            }
            break;

          case Commands.RELEASE_OBJECT:
            int id = in.readInt();
            server.removeObject(server.getObject(id));
            break;

          case Commands.NEW_INIT_STRING:
            classID = in.readInt(); // ID Of class to do new upon.
            String initString = in.readUTF(); // The init string.
            Object newValue = null;
            Class theClass = null;
            try {
              theClass = (Class) server.getObject(classID);
              if (theClass == null) {
                // The class wasn't found. So imply ClassNotFound exception.
                throw new ClassNotFoundException();
              }

              InitializationStringParser parser = null;
              try {
                parser = InitializationStringParser.createParser(initString);
                newValue = parser.evaluate();
                boolean primitive = parser.isPrimitive();
                // If expected class is Void.TYPE, that means don't test the type of the result
                // to verify if correct type, just return what it really is.
                if (theClass != Void.TYPE && primitive != theClass.isPrimitive()) {
                  valueObject.set();
                  Commands.sendErrorCommand(out, Commands.CLASS_CAST_EXCEPTION, valueObject);
                  continue; // Goto next command.
                }
                if (primitive) {
                  try {
                    // Need to do special tests for compatibility and assignment.
                    sendObject(
                        newValue,
                        classID != Commands.VOID_TYPE
                            ? classID
                            : server.getIdentityID(parser.getExpectedType()),
                        valueObject,
                        out,
                        true); // This will make sure it goes out as the correct primitive type
                  } catch (ClassCastException e) {
                    // The returned type is not of the correct type for what is expected.
                    valueObject.set();
                    Commands.sendErrorCommand(out, Commands.CLASS_CAST_EXCEPTION, valueObject);
                    continue; // Goto next command
                  }
                } else {
                  if (newValue != null) {
                    // Test to see if they are compatible. (Null can be assigned to any object,
                    // so that is why it was tested out above).
                    // If expected class is Void.TYPE, that means don't test the type of the result
                    // to verify if correct type, just return what it really is.
                    if (theClass != Void.TYPE && !theClass.isInstance(newValue)) {
                      // The returned type is not of the correct type for what is expected.
                      valueObject.set();
                      Commands.sendErrorCommand(out, Commands.CLASS_CAST_EXCEPTION, valueObject);
                      continue; // Goto next command
                    }
                  }
                  sendObject(
                      newValue, NOT_A_PRIMITIVE, valueObject, out, true); // Send out as an object.
                }
              } catch (InitializationStringEvaluationException e) {
                if (e instanceof EvaluationException) {
                  // Want to return the real exception.
                  sendException(e.getOriginalException(), valueObject, out);
                } else {
                  // Couldn't be evaluated, return an error for this.
                  setExceptionIntoValue(e.getOriginalException(), valueObject);
                  Commands.sendErrorCommand(out, Commands.CANNOT_EVALUATE_STRING, valueObject);
                }
              } finally {
                parser = null; // Clear out for GC to work
              }
            } catch (Throwable e) {
              sendException(e, valueObject, out);
            } finally {
              // Clear out for GC to work
              initString = null;
              theClass = null;
              newValue = null;
              valueObject.set();
            }
            break;

          case Commands.INVOKE:
            Object target = null;
            Object[] parms = null;
            Class returnType = null;
            java.lang.reflect.Method aMethod = null;
            try {
              int methodID = in.readInt(); // ID of method to invoke
              aMethod = (java.lang.reflect.Method) server.getObject(methodID); // Method to invoke
              Commands.readValue(in, valueObject);
              target = getInvokableObject(valueObject);
              Commands.readValue(in, valueObject);
              if (valueObject.type == Commands.ARRAY_IDS) {
                // It is an array containing IDs, as it normally would be.
                valueSender.initialize(valueObject);
                Commands.readArray(in, valueObject.anInt, valueSender, valueObject, false);
                parms = (Object[]) valueSender.getArray();
              } else {
                // It is all objects or null, so it should be an Object[] or null. If not, then this
                // is an error.
                parms = (Object[]) valueObject.anObject;
              }

              if (!aMethod.isAccessible())
                aMethod.setAccessible(
                    true); // We will allow all to occur. Let access control be handled by IDE and
                           // compiler.
              newValue = aMethod.invoke(target, parms);
              returnType = aMethod.getReturnType();
              if (returnType.isPrimitive()) {
                int returnTypeID = server.getIdentityID(returnType);
                // Need to tell sendObject the correct primitive type.
                sendObject(newValue, returnTypeID, valueObject, out, true);

              } else {
                sendObject(
                    newValue,
                    NOT_A_PRIMITIVE,
                    valueObject,
                    out,
                    true); // Just send the object back. sendObject knows how to iterpret the type
              }
            } catch (CommandException e) {
              throw e; // Throw it again. These we don't want to come up as an exception proxy.
                       // These should end the thread.
            } catch (java.lang.reflect.InvocationTargetException e) {
              // This is a wrappered exception. Return the wrappered one so it looks like
              // it was the real one. (Sometimes the method being invoked is on a
              // java.lang.reflect.Constructor.newInstance,
              // which in turn is an InvocationTargetException, so we will go until we don't have an
              // InvocationTargetException.
              Throwable t = e;
              do {
                t = ((java.lang.reflect.InvocationTargetException) t).getTargetException();
              } while (t instanceof java.lang.reflect.InvocationTargetException);
              sendException(t, valueObject, out);
            } catch (Throwable e) {
              sendException(e, valueObject, out); // Turn it into a exception proxy on the client.
            } finally {
              // Clear out for GC to work
              valueObject.set();
              parms = null;
              target = null;
              aMethod = null;
              returnType = null;
              newValue = null;
              valueSender.clear();
            }
            break;

          case Commands.INVOKE_WITH_METHOD_PASSED:
            aClass = null;
            String methodName = null;
            Class[] parmTypes = null;
            target = null;
            parms = null;
            returnType = null;
            aMethod = null;

            try {
              Commands.readValue(in, valueObject);
              aClass = (Class) getInvokableObject(valueObject); // The class that has the method.
              methodName = in.readUTF();
              Commands.readValue(in, valueObject);
              if (valueObject.type == Commands.ARRAY_IDS) {
                // It is an array containing IDs, as it normally would be.
                valueSender.initialize(valueObject);
                Commands.readArray(in, valueObject.anInt, valueSender, valueObject, false);
                parmTypes = (Class[]) valueSender.getArray();
              } else {
                // It null, so it should be an null. If not, then this is an error.
                parmTypes = null;
              }
              aMethod = aClass.getMethod(methodName, parmTypes);

              // Now we get the info for the invocation of the method and execute it.
              Commands.readValue(in, valueObject);
              target = getInvokableObject(valueObject);
              Commands.readValue(in, valueObject);
              if (valueObject.type == Commands.ARRAY_IDS) {
                // It is an array containing IDs, as it normally would be.
                valueSender.initialize(valueObject);
                Commands.readArray(in, valueObject.anInt, valueSender, valueObject, false);
                parms = (Object[]) valueSender.getArray();
              } else {
                // It is all objects or null, so it should be an Object[] or null. If not, then this
                // is an error.
                parms = (Object[]) valueObject.anObject;
              }

              if (!aMethod.isAccessible())
                aMethod.setAccessible(
                    true); // We will allow all to occur. Let access control be handled by IDE and
                           // compiler.
              newValue = aMethod.invoke(target, parms);
              returnType = aMethod.getReturnType();
              if (returnType.isPrimitive()) {
                int returnTypeID = server.getIdentityID(returnType);
                // Need to tell sendObject the correct primitive type.
                sendObject(newValue, returnTypeID, valueObject, out, true);

              } else {
                sendObject(
                    newValue,
                    NOT_A_PRIMITIVE,
                    valueObject,
                    out,
                    true); // Just send the object back. sendObject knows how to iterpret the type
              }
            } catch (CommandException e) {
              throw e; // Throw it again. These we don't want to come up as an exception proxy.
                       // These should end the thread.
            } catch (java.lang.reflect.InvocationTargetException e) {
              // This is a wrappered exception. Return the wrappered one so it looks like
              // it was the real one. (Sometimes the method being invoked is on a
              // java.lang.reflect.Constructor.newInstance,
              // which in turn is an InvocationTargetException, so we will go until we don't have an
              // InvocationTargetException.
              Throwable t = e;
              do {
                t = ((java.lang.reflect.InvocationTargetException) t).getTargetException();
              } while (t instanceof java.lang.reflect.InvocationTargetException);
              sendException(t, valueObject, out);

            } catch (Throwable e) {
              sendException(e, valueObject, out); // Turn it into a exception proxy on the client.
            } finally {
              aClass = null;
              methodName = null;
              parmTypes = null;
              // Clear out for GC to work
              valueObject.set();
              parms = null;
              target = null;
              aMethod = null;
              returnType = null;
              newValue = null;
              valueSender.clear();
            }
            break;

          case Commands.GET_ARRAY_CONTENTS:
            try {
              target = server.getObject(in.readInt()); // Array to get the ids for.
              valueObject.setArrayIDS(
                  new ArrayContentsRetriever(target),
                  Array.getLength(target),
                  Commands.OBJECT_CLASS);
              Commands.writeValue(out, valueObject, true); // Write it back as a value command.
            } catch (CommandException e) {
              throw e; // Throw it again. These we don't want to come up as an exception proxy.
                       // These should end the thread.
            } catch (Throwable e) {
              sendException(e, valueObject, out); // Turn it into a exception proxy on the client.
            } finally {
              target = null;
              valueObject.set();
            }
            break;

          case Commands.CALLBACK_DONE:
            try {
              if (connectionThread != null) {
                valueObject.set();
                Commands.sendErrorCommand(out, Commands.UNKNOWN_COMMAND_SENT, valueObject);
              } else {
                try {
                  Commands.readBackValue(in, valueObject, Commands.NO_TYPE_CHECK);
                  if (valueObject.type == Commands.ARRAY_IDS) {
                    // It is an array containing IDs, as it normally would be.
                    valueSender.initialize(valueObject);
                    Commands.readArray(in, valueObject.anInt, valueSender, valueObject, false);
                    result = valueSender.getArray();
                  } else {
                    result = getInvokableObject(valueObject);
                  }
                  doLoop = false; // We need to terminate and return result
                  closeWhenDone = false; // Don't close, we will continue.
                } catch (CommandErrorException e) {
                  // There was an command error on the other side. This means
                  // connection still good, but don't continue the callback processing.
                  doLoop = false; // We need to terminate and return result
                  closeWhenDone = false; // Don't close, we will continue.
                  throw e; // Let it go on out.
                }
              }
            } finally {
              valueObject.set();
              valueSender.clear();
            }
            break;

          case Commands.ERROR:
            try {
              // Got an error command. Don't know what to do but read the
              // value and simply print it out.
              Commands.readValue(in, valueObject);
              result = getInvokableObject(valueObject);
              System.out.println("Error sent to server: Result=" + result); // $NON-NLS-1$
            } finally {
              valueObject.set();
            }
            break;

          case Commands.EXPRESSION_TREE_COMMAND:
            try {
              processExpressionCommand(valueObject, valueSender);
            } finally {
              valueObject.set();
              valueSender.clear();
            }
            break;

          default:
            // Unknown command. We don't know how long it is, so we need to shut the connection
            // down.
            System.err.println("Error: Invalid cmd send to server: Cmd=" + cmd); // $NON-NLS-1$
            doLoop = false;
            closeWhenDone = true;
            break;
        }
      }
    } catch (EOFException e) {
      // This is ok. It means that the connection on the other side was terminated.
      // So just accept this and go down.
    } catch (CommandException e) {
      throw e;
    } catch (SocketException e) {
      if (socket != null)
        throw new UnexpectedExceptionCommandException(
            false, e); // socket null means a valid close request
    } catch (Throwable e) {
      e.printStackTrace();
    } finally {
      if (closeWhenDone) {
        try {
          for (Iterator itr = expressionProcessors.values().iterator(); itr.hasNext(); ) {
            ExpressionProcesserController exp = (ExpressionProcesserController) itr.next();
            exp.close();
          }
        } finally {
          expressionProcessors.clear();
        }

        if (in != null)
          try {
            in.close();
          } catch (Exception e) {
          }
        in = null;
        if (out != null)
          try {
            out.close();
          } catch (Exception e) {
          }
        out = null;
        close();
      }
    }

    if (closeWhenDone && connectionThread != null) server.removeConnectionThread(connectionThread);
    if (shutdown) server.requestShutdown();

    return result;
  }
  public void actionPerformed(ActionEvent e) {
    if (e.getSource() == jbSaveLayer) {
      try {
        FileOutputStream fout = new FileOutputStream(jtfCengMing.getText() + ".wyf");
        ObjectOutputStream oout = new ObjectOutputStream(fout);
        oout.writeObject(itemArray);
        oout.close();
        fout.close();
      } catch (Exception ea) {
        ea.printStackTrace();
      }
    } else if (e.getSource() == jbLoadLayer) {
      try {
        FileInputStream fin = new FileInputStream(jtfCengMing.getText() + ".wyf");
        ObjectInputStream oin = new ObjectInputStream(fin);
        itemArray = (Item[][]) oin.readObject();

        oin.close();
        fin.close();
        this.flush();
      } catch (Exception ea) {
        ea.printStackTrace();
      }
      lvp.repaint();
    } else if (e.getSource() == jbLoadAll) { // 全部铺上当前选中

      for (int row = 0; row < 40; row++) {
        for (int col = 0; col < 60; col++) {
          Item item = ((Item) (jl.getSelectedValue())).clone();
          itemArray[row][col] = item;
          if (item != null) {
            item.setPosition(col, row);
          }
        }
      }

      lvp.repaint();
    } else if (e.getSource() == jbCreate) { // 生成源代码

      try {
        FileOutputStream fout = null;
        DataOutputStream dout = null;
        fout = new FileOutputStream("maps.so");
        dout = new DataOutputStream(fout);
        int totalBlocks = 0;

        for (int i = 0; i < 40; i++) {
          for (int j = 0; j < 60; j++) {
            Item item = itemArray[i][j];
            if (item != null) {
              totalBlocks++;
            }
          }
        }
        System.out.println("totalBlocks=" + totalBlocks);

        // 写入不空块的数量
        dout.writeInt(totalBlocks);

        for (int i = 0; i < 40; i++) {
          for (int j = 0; j < 60; j++) {
            Item item = itemArray[i][j];
            if (item != null) {
              int w = item.w; // 元素的图片宽度
              int h = item.h; // 元素的图片高度
              int col = item.col; // 元素的地图列
              int row = item.row; // 元素的地图行
              int pCol = item.pCol; // 元素的占位列
              int pRow = item.pRow; // 元素的占位行
              String leiMing = item.leiMing; // 类名

              int[][] notIn = item.notIn; // 不可通过
              int[][] keYu = item.keYu; // 可遇矩阵

              // 计算图片下标
              int outBitmapInxex = 0;
              if (leiMing.equals("Grass")) {
                outBitmapInxex = 0;
              } else if (leiMing.equals("XiaoHua1")) {
                outBitmapInxex = 1;
              } else if (leiMing.equals("MuZhuang")) {
                outBitmapInxex = 2;
              } else if (leiMing.equals("XiaoHua2")) {
                outBitmapInxex = 3;
              } else if (leiMing.equals("Road")) {
                outBitmapInxex = 4;
              } else if (leiMing.equals("Jing")) {
                outBitmapInxex = 5;
              }

              dout.writeByte(outBitmapInxex); // 记录图片下标
              dout.writeByte(0); // 记录可遇标志 0-不可遇 底层都不可遇
              dout.writeByte(w); // 图片宽度
              dout.writeByte(h); // 图片高度
              dout.writeByte(col); // 总列数
              dout.writeByte(row); // 总行数
              dout.writeByte(pCol); // 占位列
              dout.writeByte(pRow); // 占位行

              int bktgCount = notIn.length; // 不可通过点的数量
              dout.writeByte(bktgCount); // 写入不可通过点的数量

              for (int k = 0; k < bktgCount; k++) {
                dout.writeByte(notIn[k][0]);
                dout.writeByte(notIn[k][1]);
              }
            }
          }
        }

        dout.close();
        fout.close();

      } catch (Exception ea) {
        ea.printStackTrace();
      }
    }
  }
  /**
   * Writes byte value into stream
   *
   * @param value byte value to write
   */
  public void writeByte(int value) throws java.io.IOException {

    outputStream.writeByte(value);
  }
Ejemplo n.º 25
0
  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
  }