Substitute of java classes in Symbian ?

[Abhishek_karmakar]

hello All,

I am a bit new to the netwoking part of the Symbian c++. I have created a project in java but now i want to do the same in Symbian c++.

I have a few classes in java that i have created. I was wondering that if someone can help me with a bit of conversion.

to start with . the following code fragment is written in j2me which i need to convert in Symbian c++. The class XmlWriter has to be extended from Outputstream so that i can send the text data to my server.

public class XmlWriter extends OutputStreamWriter

some ideas please for which is the substitute classes OutPutStreamWriter/InputStreamReader in Symbian C++.

and then this code

SocketConnection sc =(SocketConnection)Connector.open(//some ipaddress and port no.);
OutputStream os = sc.openOutputStream();
InputStream is = sc.openInputStream();

some substitute classes for SocketConnection,OutputStream,InputStream etc.

some sample code if i can go thru. anything at all will be of great help.

[savaj]

Honestly i dont know java, so i am not aware of functionality of class OutPutStreamWriter/InputStreamReader in java. Symbian has many stream interface classes, you can check it at » Symbian OS v9.1 » Symbian OS reference » C++ component reference » Syslibs STORE . Also check RSocket and RSocketServ class in SDK.

[Abhishek_karmakar]

hey thanks savaj,
actually i started looking at the RSocket class as soon as i posted this.. neways thanks for the help.

[md.abdulmca]

Hello welcome to symbian C++,

You can create TCP connection using RSocket as
[CODE]//---Instance variables
RSocketServ iSocketServer;

RSocket iSocket;

TInetAddr inetAddress;

RConnection iConnection;

User::LeaveIfError(iSocketServer.Connect());

User::LeaveIfError(iConnection.Open(iSocketServer));

inetAddress.SetPort(9090);

const TUint32 Kaddr = INET_ADD(192,168,1,2);
inetAddress.SetAddress(Kaddr);

// ---------you need to connect to GPRS in real device , note emulator can not handle RConnection --//

#ifndef __WINS__

TBool connected = EFalse;



// Lets first check are we already connected.

TUint connectionCount;

User::LeaveIfError(iConnection.EnumerateConnections(connectionCount));

TPckgBuf<TConnectionInfoV2> connectionInfo;

for (TUint i = 1; i <= connectionCount; i++)

{

User::LeaveIfError(iConnection.GetConnectionInfo(i, connectionInfo));

if (connectionInfo().iIapId == iSettingsInfo.DefaultIap())

{

connected = ETrue;

break;

}

}



// Not yet connected, start connection

if (!connected)

{

//Define preferences for connection

TCommDbConnPref prefs;

prefs.SetIapId(0);
// 0 -default iap id
prefs.SetDialogPreference(ECommDbDialogPrefDoNotPrompt);



iConnection.Start(prefs, iStatus);

SetActive();

return;

}

#endif // __WINS__

#ifdef __WINS__

// Emulator can't handle RConnections

socketErr = iSocket.Open(iSocketServer, KAfInet, KSockDatagram, KProtocolInetTcp);



#else

socketErr = iSocket.Open( iSocketServer, KAfInet, KSockDatagram, KProtocolInetTcp, iConnection );

#endif

iSocket.Connect( iAddress, iStatus );

iSocket.send(data,0, iStatus);[CODE]
Note: You have to wait for iStatus,

[savaj]

Use tag [CODE ] code here [CODE ] (without space) to past code.

[Abhishek_karmakar]

hey thanks very much md.abdulmca .
that was helpful