PushRegistry light MIDlet but acceptAndOpen blocks

To the duties of lesson 4, I changed my MIDlet to be notified of the PushRegistry.

When a customer wants to connect, the PushRegistry pulls up to my MIDlet and provides a connection string.

Can I open a ServerSocketConnection of this chain, but when to acceptAndOpen blocks!

How that could happen?

Thank you!

-Markus

I found and solved my problem! For those interested, here is the solution: because I use two threads, I certainly don't have to invoke notifyDestroyed() unconditionally as Tom. Certainly, I have to wait until all the discussions are finished serving connections running. To do this, I simply used a volatile variable (currently served connections counter) and a ("seed") synchronized mutator method. The Set accessor is called at the end of each worker thread and made notifyDestroyed() once the connection counter drops to zero. LanceApp is also, notifyDestroyed() when it is invoked with no connection. Finally, the acceptAndOpen() waiting threads ending by checking the connection being reset counter. That's all. Works like a charm and is fully extensible.

SerializableAttribute public class Lesson42 extends MIDlet {}

private int volatile runningThreads;

private synchronized void addThread() {}

this.runningThreads ++;

}

private synchronized void removeThread() {}

-this.runningThreads;

If (runningThreads == 0) {}

this.notifyDestroyed ();

}

}

@Override

public void startApp() {}

disadvantages of [final] String = PushRegistry.listConnections (true);

If (cons.length > 0) {}

for (final String con: disadvantages) {}

If (con.startsWith ("socket")) {}

handleConnections (con);

}

}

} else

notifyDestroyed();

}

@Override

public void pauseApp() {}

unused

}

@Override

{} public void destroyApp (boolean unconditional)

}

handleConnections private void (final String con) {}

New Thread() {}

@Override

public final void run() {}

try {}

Try (final ServerSocketConnection ssc = {Connector.open (con)) (ServerSocketConnection)

{}

handleClient (ssc.acceptAndOpen ());

} while (runningThreads > 0);

}

} catch (IOException ex) {}

ex.printStackTrace ();

}

}

Private Sub handleClient (final StreamConnection connection) throws IOException {}

addThread();

New Thread() {}

@Override

public final void run() {}

final ubyte [] buffer = new byte [128];

Try (final InputStream is = connection.openDataInputStream (); final BufferedWriter bw = new BufferedWriter (new OutputStreamWriter (connection.openDataOutputStream ())) {}

EXTERNAL:

While (true) {}

final int b = is.read (buffer);

final String s = new String (buffer, 0, b);

System.out.println (s);

switch (s) {}

case "READ":

String [] _msgToSend = {"^ 1389744181,5 ^ ^", "^ 1389747781, -3 ^ ^", "^ 1389751561,7 ^ ^", "^ 1389753606,10 ^ ^ ', ' ^ 1389756000,12 ^ ^", "^ 1389758577,8 ^ ^ ',}

{"^ ^ 1387202580, 40.5583739, N, 85.6591442, E, 157.25 ^ ', ' ^ ^ 1387202967, 41.1234567, S, 86.1234567, W, 135.89 ^"};

BW. Write (Integer.ToString (8));

bw.newLine ();

for (final String m: _msgToSend) {}

BW. Write (m);

bw.newLine ();

}

BW. Flush();

break;

case "DISCONNECT":

break OUTER;

}

}

} catch (IOException ex) {}

Logger.getLogger (Lesson42.class.getName ()) .log (Level.SEVERE, null, ex);

}

removeThread();

}

}. start();

}

}. start();

}

;

}

Tags: Java

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