Sockets and push registry

Hello,
I want to get a socket connection between a MIDlet and servlet whats the best was to do this? so i can send information back and forth
( the MIDlet needs to be activated also by the socket connection from the Servlet)
I have read the article on push registry but still am a bit in the dark.
Thanks.

Find your answer here :
http://discussion.forum.nokia.com/forum/showthread.php?p=184664#poststop
SD

Similar Messages

Sign midlet and push registry

Hello people ,
Am wandering if i signed my midlet will the permission for push registry be "always yes", i mean no security messages will be shown to the user?
thanx in advance

Find your answer here :
http://discussion.forum.nokia.com/forum/showthread.php?p=184664#poststop
SD

Push registry

Hi,
I have to make a cell application that stay down until a connection incoming. I have to use push registry. I have to make also a program for pc that work as a "push server": when it has something to send to the cell it sends.
I find some examples on the net but a lot are for midlet that activate by a sms incoming.
Someone can explain me what i have to do.
A simple skeleton or outline for this midlet?
If I want to start a MIDlet that isn't load I can?

Yes you can.
But instead to use the SMS (you have to send it from your server so a little expensive) try to look for socket connections instead. So your application could just register and stay down (the server still needs the target ip if u are going to use sockets)
The push registry will start your app when data will came (start a thread don't use the listner to do your business!)
If u get troubles doing this way put your app in background (with symbian you have many options to start an application automatically) and just play a sound when data are being received.

Push Registry and Auto Start

I need to set and alram using Push Registry that will survive after the phone is turned off and turned on again.
Can I register more than one alarm at a time or do I have to register alrams one by one?
Thanks

I need to set and alram using Push Registry that will survive after the phone is turned off and turned on again.
Can I register more than one alarm at a time or do I have to register alrams one by one?
Thanks

Push Registry and IBM J9

I am trying to use the PushRegistry registerAlarm function in J2ME for my HP 6515, and it says "alarms not supported" as the error message, the error being ConnectionNotFoundException. Do you think that this could be because IBM J9 doesn't support the Push Registry? Or is it something else?
Any advice would be more than welcome =D

I am trying to use the PushRegistry registerAlarm function in J2ME for my HP 6515, and it says "alarms not supported" as the error message, the error being ConnectionNotFoundException. Do you think that this could be because IBM J9 doesn't support the Push Registry? Or is it something else?
Any advice would be more than welcome =D

Push Registry : MIDlet activated by servlet ?

hello, i have been trying to figure this out for days now could someone please help. I am trying to get the MIDlet to by activated by a Servlet which resides on a apache webserver , is this possible?
how do you go about in getting the MIDlet to register a connection which waits for some activity sent via HTTP? do you register a socket to listen on a port on the device and get the servlet to send data to that port via HTTP?(if so how is this done?)
Basically all i am trying to do is get a servlet to send data to the midlet. The MIDlet is installed from the webserver with ease, i want the midlet to wait till the server decides to send some data. the servlet will activate the midlet (this is the problem) , so then the midlet will open the http connection to the servlet.
Please ask if the question needs clarifying, I would be very thankful for any advice provided.
cheers
Max

thanks for info
i have been trying for a while now and cant seem to get this working what i have got is a MIDlet that listens on port 90 of a socket connection. i am trying to create a Servlet that sends data onto port 90 so the midlet can be activated via the push registry. i am having the trouble with the servlet(which i cant get working, i assume that the code is wrong), i cant seem to get a socket connection working, i have tried to open a socket connection but have had no luck.
i have posted some code, the MIDlet is there and so is my attempt at a servlet.
what i want to do is get the servlet sending the midlet data on a specified port
and the midlet recieveing that data and displaying it on the mobile emulator
(so far all the MIDlet code does is listen for some activaty on port 90 and then send some data to the browser on the following url : http://localhost:90/)
if anyone can get this problem on this example code i am testing on, fixed it would be much appreciated!!
Thanks
Max
import java.io.*;
import javax.microedition.io.*;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import javax.microedition.pki.*;
public class PatchyMIDlet
    extends MIDlet
    implements CommandListener, Runnable {
private Display mDisplay;
private Form mForm;
private ServerSocketConnection mServerSocketConnection;
private boolean mTrucking = true;
public void startApp() {
    mDisplay = Display.getDisplay(this);
    if (mForm == null) {
      mForm = new Form("PatchyMIDlet");
      mForm.addCommand(new Command("Exit", Command.EXIT, 0));
      mForm.setCommandListener(this);
    Thread t = new Thread(this);
    t.start();
    mDisplay.setCurrent(mForm);
public void pauseApp() {}
public void destroyApp(boolean unconditional) { shutdown(); }
private void log(String text) { log(null, text); }
private void log(String label, String text) {
    StringItem si = new StringItem(label, text);
    si.setLayout(Item.LAYOUT_NEWLINE_AFTER);
    mForm.append(si);
private void shutdown() {
    mTrucking = false;
    try { mServerSocketConnection.close(); }
    catch (IOException ioe) {}
public void commandAction(Command c, Displayable s) {
    if (c.getCommandType() == Command.EXIT) {
      shutdown();
      notifyDestroyed();
public void run() {
    try {
      mServerSocketConnection =
(ServerSocketConnection)Connector.open("socket://:90");
      log("Startup complete.");
      SocketConnection sc = null;
      while (mTrucking) {sc =
(SocketConnection)mServerSocketConnection.acceptAndOpen();
        log("client: ", sc.getAddress());
        // Strictly speaking, each client connection
        // should be handled in its own thread. For
        // simplicity, this implementation handles
        // client connections inline.
        Reader in = new InputStreamReader(sc.openInputStream());
        String line;
        while ((line = readLine(in)) != null) ;
        // Ignoring the request, send a response.
        PrintStream out = new PrintStream(sc.openOutputStream());
        out.print("HTTP/1.1 200 OK\r\n\r\n");
        out.print(getMessage());
        out.close();
        in.close();
        sc.close();
    catch (Exception e) {
      log("exception: ", e.toString());
private String readLine(Reader in) throws IOException {
    // This is not efficient.
    StringBuffer line = new StringBuffer();
    int i;
    while ((i = in.read()) != -1) {
      char c = (char)i;
      if (c == '\n') break;
      if (c == '\r') ;
      else line.append(c);
    if (line.length() == 0) return null;
    return line.toString();
private java.util.Random mRandom = new java.util.Random();
private String getMessage() {
    int i = Math.abs(mRandom.nextInt()) % 5;
    String s = null;
    switch (i) {
      case 0: s = "Above all the others we'll fly"; break;
      case 1: s = "There is no reason to hide"; break;
      case 2: s = "I dreamed about Ray Charles last night"; break;
      case 3: s = "Someone keeps moving my chair"; break;
      case 4: s = "Joseph's face was black as night"; break;
      default: break;
    return s;
}the Servlet code, which i cant get working:
import javax.servlet.http.*;
import javax.servlet.*;
import java.io.*;
import java.net.*;
import java.lang.*;
public class Servlet extends HttpServlet {
private int mCount;
public void doGet(HttpServletRequest request, HttpServletResponse response) throws
      ServletException, IOException {
    String message = "Hits: " + ++mCount;
    String connectString = "socket://:90";
    SocketConnection sc = null;
    DataOutputStream dos = null;
      // open a socket connection with the remote server
      sc = (SocketConnection) Connector.open(connectString);
// an OutputStream is created on top of the
      // OutputConnection object for write operations
      dos = sc.openDataOutputStream();
// perform write operations
      dos.writeChars("hello");
}

Question about push registry

hello, I'm a beginner in j2me and I'm developing an application that receive a message via socket, and I want my application to be always ready to receive the message even if it not running. I thought of static push registry put the thing I couldn't understand are:
- my application must send different messages for each clients, so is pushing to the registry will help me here ??
- when I use it how the connection be established (I mean do I have to write connecter.open()), because I use the dynamic one and by the example provided by sun I create the connection and then push it to registry ..???
- do I need some specific code to be written on the server side ?
- can u please give the steps of how to test static push registry ??
hope u will help me ^_^
thanks

I understood what I want but I stuck in a problem with static push-registry, it work fine on the emulator but when I install it on a real device nothing happen.
the device I use is E71 .. I want to know if anyone try push with it and he success or E71 is not supporting static push-registry.
when I install the application it dose ask me if I agree to run it automatically ..... also, I try the dynamic one and it success...
thanks

Can I do this with the Push Registry?

I need to write a midlet that will listen for an incoming message from the comm port on a Motorola i355 iden phone. I don`t care if the midlet is open or closed when the message comes in. Whichever would be fastest would be best. I'm using the phone to process a message and send another message back out through the comm port to a connected machine. I also don't have control over the message that is coming from the machine that the phone will be connected to. This will only be my 2nd J2ME application so I'm very new at this.
I have seen plenty of examples of using the push registry to do this for a socket and datagram (I don`t even know what a datagram is), but nothing for use with a comm connection. If anyone can steer me in the right direction, it would be greatly appreciated. Thanks.

Hi
yes SIR u can
thx
souvik

Push Registry - "ping ponging" midlets

i am currently trying to build test apps that utilizes push registry using sockets
basically, i have 2 midlets, let's name them midlet1 and midlet2
1. i launch midlet1
2. then i exit midlet1
3. exiting midlet1 triggers the push for launching midlet2
4. midlet2 launches by itself
5. i then exit midlet2
6. similarly, exiting midlet2 triggers the push for launching midlet1
7. midlet1 launches by itself
8. i tried repeating everything from step 1, but it doesnt work..
anyone familiar with this situation?
i tried closing the socket connection during destroyApp() and of course the threads are stopped as well, but obviously they didn't worked for me..
Edited by: novarian_brian.balote on Sep 26, 2008 1:22 AM
Edited by: novarian_brian.balote on Sep 26, 2008 1:23 AM
Edited by: novarian_brian.balote on Sep 26, 2008 1:24 AM

sure, so yes its only on midp2, the JAD stuff you're talking about is only for the pushregistry in midp2.
how it works? you tell the AMS (application management system) on the phone that when it installs MyMIDlet it should attach it to some port (say... 5444 for example).
cool so now its installed.
now when your phone gets an SMS nothing happens... UNLESS that SMS is directed at port 5444. At that point, the AMS will invoke MyMIDlet.
but ya, you need MIDP2.0

How to handle multiple SMS using push registry

Hello all
I m using push registry. for incomming sms
My application have some tasks after reciving sms form a particular phone no. Application will starts When u get a SMS from a number say 122222.
After reciving an sms application is busy in further task.
What will happen when another sms comes??
Will Application Suspendes?? or application listen that sms??

hi vinay,
My name is lakshman.I am alos trying to implement the sms and call option to my application.
If you don't mind can you give me suggestions in the following
1) how to Implement the call option in our application
2)how to implement the sms option in our application
i am waiting for your reply
thanks in advance
or else give me the site address where i can find the solutions
ok thankyou
lakshman

Push registry in MIDP 2.0

Hi
I want to know that what is the Difference between Push Registry and notifyIncomingMessage in WMA.
Anupam..

Push registry is common for all kind of service. lets take after some time you want your application to start. or you want to invoke your application depend on Time /SMS and etc.
That time it will help to implement by using Push Registry.
but another one specific to SMS.

Push Registry is not starting the MIDLET automatically

I am not being able to start my MIDLET using the push registry mechanism. I am using the netbeans emuluator to execute the program.
In the startApp of my application I have
     connections = PushRegistry.listConnections(false);
and whenever a connection comes it starts a new thread. My Client keeps sending SMS requests but the server midlet in which the
push registry is initiated does not start.
In the application Descriptor I have added the following
MIDLET class : Server.SMSReceive_S
Sender IP : *
Connection String : sms://:5000
and in the API permissions I have added the following API permissions
javax.microedition.io.PushRegistry, javax.wireless.messaging.sms.receive, javax.wireless.messaging.sms.send
I have even tried to start the MIDLET dynamically by calling
     PushRegistry.registerConnection(smsConnection,this.getClass().getName(),filterName);
but that too doesnt work?
So what am I doing wrong in starting the MIDLET automatically using push registry?

Hi, Malte
I have given individual nodes address in db2nodes.cfg, as per your instruction I have run the db2 list database directory I have got the following output
System Database Directory
Number of entries in the directory = 1
atabase 1 entry:
Database alias                       = SOP
Database name                        = SOP
Local database directory             = /db2/SOP
Database release level               = b.00
Comment                              = SAP database SOP
Directory entry type                 = Indirect
Catalog database partition number    = 0
Alternate server hostname            =
Alternate server port number         =
=> db2 list node directory
=> SQL1027N The node directory cannot be found
Regards

Help in Push Registry On S40

i have a problem in push registry on s40
it throw the exception
ClassNotFoundException : Midlet Not Found
i try the Same Code In S60 it run Well
The Code::::
private void Test() {
try {
System.out.println
("Befffforrrrrrrrrrrrr");
long x= DF.getDate().getTime();
prevalarm = PushRegistry.registerAlarm(this.getClass().getName(),x);
System.out.println
("Afterrrrrrrrrrrrrrrrrrrrrrrrr");
catch (ConnectionNotFoundException ex) {
System.out.println("Erorororo 1 :"+ex.getMessage().toString());
catch (ClassNotFoundException ex) {
System.out.println("Erorororo 2 :"+ex.getMessage().toString());
/**************************/The Jad file
MIDlet-Name: DemoForFun
MIDlet-Version: 1.8
MIDlet-Vendor: DemoForFun
MicroEdition-Profile: MIDP-2.0
MicroEdition-Configuration: CLDC-1.1
MIDlet-Jar-URL: DemoForFun.jar
MIDlet-Jar-Size: 2096
MIDlet-Permissions: javax.microedition.io.PushRegistry
MIDlet-1: DemoForFun, , DemoForFun

S40 Is MIDP 2.0
The Series 40 Platform 1st Edition supports Java� 2 Platform, Micro Edition (J2ME�) APIs, including Mobile Information Device Profile (MIDP) 1.0, Connected Limited Device Configuration (CLDC) 1.0, and Nokia's user interface APIs
The Series 40 Platform 2nd Edition added J2ME MIDP 2.0 with Java Specification Requests (JSRs), implementation of Wireless Messaging API (JSR 120), Mobile Media API (JSR 135), and Java APIs for Bluetooth (JSR 82).
Series 40 Platform 3rd Edition extends J2ME support, implements CLDC 1.1 and MIDP 2.0, and expands on the provision of messaging, mobile media, and Bluetooth technology APIs with support for FileConnection and personal information manager (PIM) (JSR 75), as well as Mobile 3D Graphics (JSR 184).

Error on push registry feature

Hi admin,
I am doing, Add MIDP 2.0's push registry feature to device application.
It workS fine on J2ME wireless toolkit(KTOOLBAR) and i have implemented
push registry to my project in netbeans. It builds successfully but when
i run, it producing the following error.
startApp threw an Exception
java.lang.IllegalArgumentException: Port format
at com.sun.midp.io.j2me.sms.Protocol.openPrimInternal(+281)
at com.sun.midp.io.j2me.sms.Protocol.openPrim(+8)
at javax.microedition.io.Connector.openPrim(+233)
at javax.microedition.io.Connector.open(+15)
at javax.microedition.io.Connector.open(+6)
at javax.microedition.io.Connector.open(+5)
at com.sample.MySamplePushRegistry.startApp(+45)
at javax.microedition.midlet.MIDletProxy.startApp(+7)
at com.sun.midp.midlet.Scheduler.schedule(+270)
at com.sun.midp.main.Main.runLocalClass(+28)
at com.sun.midp.main.Main.main(+116)
Execution completed.
Wat could be the problem?... pl clarify me...

hi,
i have use this code for getting smsport smsPort = getAppProperty("SMS-Port"); and "SMS-Port" this one is initialized in wireless toolkit in user defined settings as 50001.
if any correction shall i do...

Whats the logic in push registry???

hi,
was jus doin this push registry thing. in short Midlet registers itself to AMS then whenever some event occurs such as time or something happnes at specific port then midlet is started....
but in example application i saw and tried to make i have to keep my listner midlet running so that it can listen to push events. now wheres that AMS working.....????
i thought push registry was some sort of demon working beind the scene and gets activated only when some event occurs. infect i should not call it deamon according to book it is dead and only activates when called by AMS due to some registred event....
AAqib

I don't understand the question. The Docs are pretty specific here...
"When the application is not running, the application management software(AMS) listens for inbound notification requests. When a notification arrives for a registered MIDlet, the AMS will start the MIDlet via the normal invocation of MIDlet.startApp method."
Like the docs say, your applet will be started when the desired even occurs. It does not need to be running to listen for events. This really is how it works. If you use the 'Alarm' functionality, your midlet will be started after a set amount of time. The Javadoc's on the PushRegistry even have example code.
Are you having trouble with something specific?

Sockets and push registry

Similar Messages

Maybe you are looking for