JAIN SIP

Hi,

I am planning to develop a voip application with JAIN SIP API. recently, i've downloaded it. and now i've got problem in running Example.class that I got from the documentation.

import jain.protocol.ip.sip.*;

import jain.protocol.ip.sip.address.*;

import jain.protocol.ip.sip.header.*;

import jain.protocol.ip.sip.message.*;

import java.util.*;

public class Example implements SipListener {

private SipFactory sipFactory = null;

private AddressFactory addressFactory = null;

private HeaderFactory headerFactory = null;

private MessageFactory messageFactory = null;

private SipStack sipStack = null;

private SipProvider sipProvider = null;

private Iterator listeningPoints = null;

// Main

public static void main(String[] args) {

Example example = new Example();

example.sendMessages();

}

public Example() {

setup();

}

private void setup() {

// Obtain an instance of the singleton SipFactory

sipFactory = SipFactory.getInstance();

// Set path name of SipFactory to reference implementation

// (not needed - default path name)

sipFactory.setPathName("com.dynamicsoft.ri");

try {

// Create SipStack object

sipStack = (SipStack)sipFactory.createSipStack();

} catch(SipPeerUnavailableException e) {

// could not find com.dynamicsoft.ri.jain.protocol.ip.sip.SipStackImpl

// in the classpath

System.err.println(e.getMessage());

System.exit(-1);

} catch(SipException e) {

// could not create SipStack for some other reason

System.err.println(e.getMessage());

System.exit(-1);

}

// Set name of SipStack

sipStack.setStackName("Reference Implementation SIP stack");

try {

// Get SipStack's ListeningPoints

listeningPoints = sipStack.getListeningPoints();

// Create SipProvider based on the first ListeningPoint

sipProvider = sipStack.createSipProvider((ListeningPoint)listeningPoints.next());

} catch(NullPointerException e) {

System.err.println("Stack has no ListeningPoints");

System.exit(-1);

} catch(ListeningPointUnavailableException e) {

System.err.println(e.getMessage());

System.exit(-1);

}

// Register this application as a SipListener of the SipProvider

try {

sipProvider.addSipListener(this);

} catch(TooManyListenersException e) {

// A limit has been reached on the number of Listeners allowed per provider

System.err.println(e.getMessage());

System.exit(-1);

} catch(SipListenerAlreadyRegisteredException e) {

// Already been added as SipListener

System.err.println(e.getMessage());

System.exit(-1);

}

// Process transaction timeout

public void processTimeOut(jain.protocol.ip.sip.SipEvent transactionTimeOutEvent) {

if(transactionTimeOutEvent.isServerTransaction()) {

System.out.println("Server transaction " + transactionTimeOutEvent.getTransactionId() + " timed out");

} else {

System.out.println("Client transaction " + transactionTimeOutEvent.getTransactionId() + " timed out");

}

// Process Request received

public void processRequest(jain.protocol.ip.sip.SipEvent requestReceivedEvent) {

Request request = (Request)requestReceivedEvent.getMessage();

long serverTransactionId = requestReceivedEvent.getTransactionId();

System.out.println("\n\nRequest received with server transaction id " + serverTransactionId + ":\n" + request);

try {

// If request is not an ACK then try to send an OK Response

if((!Request.ACK.equals(request.getMethod())) && (!Request.REGISTER.equals(request.getMethod()))) {

sipProvider.sendResponse(serverTransactionId, Response.OK, "SDP body of Response", "application", "sdp");

}

} catch(TransactionDoesNotExistException e) {

System.out.println(e.getMessage());

System.exit(-1);

} catch(SipParseException e) {

System.out.println(e.getMessage());

System.exit(-1);

} catch(SipException e) {

System.out.println(e.getMessage());

System.exit(-1);

}

// Process Response received

public void processResponse(jain.protocol.ip.sip.SipEvent responseReceivedEvent) {

Response response = (Response)responseReceivedEvent.getMessage();

long clientTransactionId = responseReceivedEvent.getTransactionId();

System.out.println("Response received with client transaction id " + clientTransactionId + ":\n" + response);

try {

// Get method of response

String method = response.getCSeqHeader().getMethod();

// Get status code of response

int statusCode = response.getStatusCode();

// If response is a 200 INVITE response, try to send an ACK

if((statusCode == Response.OK) && (method.equals(Request.INVITE))) {

sipProvider.sendAck(clientTransactionId);

}

} catch(SipException e) {

System.err.println(e.getMessage());

System.exit(-1);

}

public void sendMessages() {

try {

// Create AddressFactory

addressFactory = sipFactory.createAddressFactory();

// Create HeaderFactory

headerFactory = sipFactory.createHeaderFactory();

// Create MessageFactory

messageFactory = sipFactory.createMessageFactory();

} catch(SipPeerUnavailableException e) {

System.err.println(e.getMessage());

System.exit(-1);

}

SipURL fromAddress = null;

NameAddress fromNameAddress = null;

FromHeader fromHeader = null;

SipURL toAddress = null;

NameAddress toNameAddress = null;

ToHeader toHeader = null;

SipURL requestURI = null;

CallIdHeader callIdHeader = null;

CSeqHeader cSeqHeader = null;

ViaHeader viaHeader = null;

ArrayList viaHeaders = null;

ContentTypeHeader contentTypeHeader = null;

Request invite = null;

Request options = null;

Request register = null;

try {

// create From Header

fromAddress = addressFactory.createSipURL("caller", sipProvider.getListeningPoint().getHost());

fromAddress.setPort(sipProvider.getListeningPoint().getPort());

fromNameAddress = addressFactory.createNameAddress("Caller", fromAddress);

fromHeader = headerFactory.createFromHeader(fromNameAddress);

// create To Header

toAddress = addressFactory.createSipURL("callee", sipProvider.getListeningPoint().getHost());

toAddress.setPort(sipProvider.getListeningPoint().getPort());

toNameAddress = addressFactory.createNameAddress("Callee", toAddress);

toHeader = headerFactory.createToHeader(toNameAddress);

// create Request URI

requestURI = (SipURL)toAddress.clone();

requestURI.setTransport(sipProvider.getListeningPoint().getTransport());

// Create ViaHeaders

String transport = sipProvider.getListeningPoint().getTransport();

if(transport.equals(ListeningPoint.TRANSPORT_UDP)) {

transport = ViaHeader.UDP;

} else if(transport.equals(ListeningPoint.TRANSPORT_TCP)) {

transport = ViaHeader.TCP;

}

viaHeader = headerFactory.createViaHeader(sipProvider.getListeningPoint().getHost(), sipProvider.getListeningPoint().getPort(), transport);

viaHeaders = new ArrayList();

viaHeaders.add(viaHeader);

// Create ContentTypeHeader

contentTypeHeader = headerFactory.createContentTypeHeader("application", "sdp");

// Create and send INVITE Request

callIdHeader = sipProvider.getNewCallIdHeader();

cSeqHeader = headerFactory.createCSeqHeader(1, Request.INVITE);

invite = messageFactory.createRequest(requestURI, Request.INVITE, callIdHeader, cSeqHeader, fromHeader, toHeader, viaHeaders, "SDP body of INVITE Request", contentTypeHeader);

sipProvider.sendRequest(invite);

// Create and send OPTIONS Request

callIdHeader = sipProvider.getNewCallIdHeader();

cSeqHeader = headerFactory.createCSeqHeader(1, Request.OPTIONS);

options = messageFactory.createRequest(requestURI, Request.OPTIONS, callIdHeader, cSeqHeader, fromHeader, toHeader, viaHeaders, "SDP body of OPTIONS Request", contentTypeHeader);

sipProvider.sendRequest(options);

// Create and send REGISTER Request

callIdHeader = sipProvider.getNewCallIdHeader();

cSeqHeader = headerFactory.createCSeqHeader(1, Request.REGISTER);

register = messageFactory.createRequest(requestURI, Request.REGISTER, callIdHeader, cSeqHeader, fromHeader, toHeader, viaHeaders, "SDP body of OPTIONS Request", contentTypeHeader);

long clientTransactionId = sipProvider.sendRequest(register);

// send CANCEL Request

sipProvider.sendCancel(clientTransactionId);

// send BYE Request

sipProvider.sendBye(clientTransactionId, true);

} catch(SipParseException e) {

// Implementation was unable to parse a value

System.err.println(e.getMessage() + "[" + e.getUnparsable() + "]");

System.exit(-1);

} catch(SipException e) {

// Another exception occurred

System.err.println(e.getMessage());

System.exit(-1);

}

Exception Message displayed:

The Peer JAIN SIP Object: com.dynamicsoft.ri.jain.protocol.ip.sip.SipStackImpl could not be instantiated. Ensure the Path Name has been set.

my questions are:

1. what pathname do i need to set(windows xp) ?any solution to this problem?

2. how to run jain presence proxy?

what are the settings required to run jain presence proxy?

3. can i build my own proxy server using JAIN SIP?

I would be very grateful if anyone could help me

[10015 byte] By [Willie_8363a] at [2007-10-1 18:32:59]

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