package examples.forked.invite;
import javax.sip.*;
import javax.sip.address.*;
import javax.sip.header.*;
import javax.sip.message.*;
import org.apache.log4j.ConsoleAppender;
import org.apache.log4j.FileAppender;
import org.apache.log4j.Logger;
import org.apache.log4j.SimpleLayout;
import java.util.*;
import junit.framework.TestCase;
/**
* This class is a UAC template. Shootist is the guy that shoots and shootme is
* the guy that gets shot.
*
* @author M. Ranganathan
*/
public class Shootme extends TestCase implements SipListener {
private static String transport = "udp";
private static final String myAddress = "127.0.0.1";
private Hashtable serverTxTable = new Hashtable();
private SipProvider sipProvider;
private int myPort ;
private static String unexpectedException = "Unexpected exception ";
private static Logger logger = Logger.getLogger(Shootme.class);
static {
try {
logger.addAppender(new FileAppender(new SimpleLayout(),
ProtocolObjects.logFileDirectory + "shootmeconsolelog.txt"));
//logger.addAppender( new ConsoleAppender(new SimpleLayout()));
} catch (Exception ex) {
throw new RuntimeException ("could not open log file");
}
}
class MyTimerTask extends TimerTask {
RequestEvent requestEvent;
String toTag;
ServerTransaction serverTx;
public MyTimerTask(RequestEvent requestEvent,ServerTransaction tx, String toTag) {
logger.info("MyTimerTask ");
this.requestEvent = requestEvent;
this.toTag = toTag;
this.serverTx = tx;
}
public void run() {
sendInviteOK(requestEvent,serverTx,toTag);
}
}
protected static final String usageString = "java "
+ "examples.shootist.Shootist \n"
+ ">>>> is your class path set to the root?";
public void processRequest(RequestEvent requestEvent) {
Request request = requestEvent.getRequest();
ServerTransaction serverTransactionId = requestEvent
.getServerTransaction();
logger.info("\n\nRequest " + request.getMethod()
+ " received at shootme "
+ " with server transaction id " + serverTransactionId);
if (request.getMethod().equals(Request.INVITE)) {
processInvite(requestEvent, serverTransactionId);
} else if (request.getMethod().equals(Request.ACK)) {
processAck(requestEvent, serverTransactionId);
} else if (request.getMethod().equals(Request.BYE)) {
processBye(requestEvent, serverTransactionId);
} else if (request.getMethod().equals(Request.CANCEL)) {
processCancel(requestEvent, serverTransactionId);
}
}
public void processResponse(ResponseEvent responseEvent) {
logger.info("processResponse " + responseEvent.getClientTransaction() +
"\nresponse = " + responseEvent.getResponse());
}
/**
* Process the ACK request. Send the bye and complete the call flow.
*/
public void processAck(RequestEvent requestEvent,
ServerTransaction serverTransaction) {
logger.info("shootme: got an ACK! ");
logger.info("Dialog = " + requestEvent.getDialog());
logger.info("Dialog State = " + requestEvent.getDialog().getState());
}
/**
* Process the invite request.
*/
public void processInvite(RequestEvent requestEvent,
ServerTransaction serverTransaction) {
SipProvider sipProvider = (SipProvider) requestEvent.getSource();
Request request = requestEvent.getRequest();
try {
logger.info("shootme: got an Invite sending Trying");
// logger.info("shootme: " + request);
ServerTransaction st = requestEvent.getServerTransaction();
if (st == null) {
logger.info("null server tx -- getting a new one");
st = sipProvider.getNewServerTransaction(request);
}
logger.info("getNewServerTransaction : " + st);
String txId = ((ViaHeader)request.getHeader(ViaHeader.NAME)).getBranch();
this.serverTxTable.put(txId, st);
// Create the 100 Trying response.
Response response = ProtocolObjects.messageFactory.createResponse(Response.TRYING,
request);
ListeningPoint lp = sipProvider.getListeningPoint("udp");
int myPort = lp.getPort();
Address address = ProtocolObjects.addressFactory.createAddress("Shootme <sip:"
+ myAddress + ":" + myPort + ">");
st.sendResponse(response);
Response ringingResponse = ProtocolObjects.messageFactory.createResponse(Response.RINGING,
request);
ContactHeader contactHeader = ProtocolObjects.headerFactory.createContactHeader(address);
response.addHeader(contactHeader);
ToHeader toHeader = (ToHeader) ringingResponse.getHeader(ToHeader.NAME);
String toTag = new Integer((int) (Math.random() * 10000)).toString();
toHeader.setTag(toTag); // Application is supposed to set.
ringingResponse.addHeader(contactHeader);
st.sendResponse(ringingResponse);
Dialog dialog = st.getDialog();
dialog.setApplicationData(st);
new Timer().schedule(new MyTimerTask(requestEvent,st,toTag), 100);
} catch (Exception ex) {
ex.printStackTrace();
System.exit(0);
}
}
private void sendInviteOK(RequestEvent requestEvent, ServerTransaction inviteTid, String toTag) {
try {
logger.info("sendInviteOK: " + inviteTid);
if (inviteTid.getState() != TransactionState.COMPLETED) {
logger.info("shootme: Dialog state before OK: "
+ inviteTid.getDialog().getState());
SipProvider sipProvider = (SipProvider) requestEvent.getSource();
Request request = requestEvent.getRequest();
Response okResponse = ProtocolObjects.messageFactory.createResponse(Response.OK,
request);
ListeningPoint lp = sipProvider.getListeningPoint("udp");
int myPort = lp.getPort();
Address address = ProtocolObjects.addressFactory.createAddress("Shootme <sip:"
+ myAddress + ":" + myPort + ">");
ContactHeader contactHeader = ProtocolObjects.headerFactory
.createContactHeader(address);
okResponse.addHeader(contactHeader);
inviteTid.sendResponse(okResponse);
logger.info("shootme: Dialog state after OK: "
+ inviteTid.getDialog().getState());
} else {
logger.info("semdInviteOK: inviteTid = " + inviteTid + " state = " + inviteTid.getState());
}
} catch (Exception ex) {
ex.printStackTrace();
}
}
/**
* Process the bye request.
*/
public void processBye(RequestEvent requestEvent,
ServerTransaction serverTransactionId) {
Request request = requestEvent.getRequest();
try {
logger.info("shootme: got a bye sending OK.");
logger.info("shootme: dialog = " + requestEvent.getDialog());
logger.info("shootme: dialogState = " + requestEvent.getDialog().getState());
Response response = ProtocolObjects.messageFactory.createResponse(200, request);
if ( serverTransactionId != null) {
serverTransactionId.sendResponse(response);
}
logger.info("shootme: dialogState = " + requestEvent.getDialog().getState());
} catch (Exception ex) {
ex.printStackTrace();
System.exit(0);
}
}
public void processCancel(RequestEvent requestEvent,
ServerTransaction serverTransactionId) {
Request request = requestEvent.getRequest();
SipProvider sipProvider = (SipProvider)requestEvent.getSource();
try {
logger.info("shootme: got a cancel. " );
// Because this is not an In-dialog request, you will get a null server Tx id here.
if (serverTransactionId == null) {
serverTransactionId = sipProvider.getNewServerTransaction(request);
}
Response response = ProtocolObjects.messageFactory.createResponse(200, request);
serverTransactionId.sendResponse(response);
String serverTxId = ((ViaHeader)response.getHeader(ViaHeader.NAME)).getBranch();
ServerTransaction serverTx = (ServerTransaction) this.serverTxTable.get(serverTxId);
if ( serverTx != null && (serverTx.getState().equals(TransactionState.TRYING) ||
serverTx.getState().equals(TransactionState.PROCEEDING))) {
Request originalRequest = serverTx.getRequest();
Response resp = ProtocolObjects.messageFactory.createResponse(Response.REQUEST_TERMINATED,originalRequest);
serverTx.sendResponse(resp);
}
} catch (Exception ex) {
ex.printStackTrace();
System.exit(0);
}
}
public void processTimeout(javax.sip.TimeoutEvent timeoutEvent) {
Transaction transaction;
if (timeoutEvent.isServerTransaction()) {
transaction = timeoutEvent.getServerTransaction();
} else {
transaction = timeoutEvent.getClientTransaction();
}
logger.info("state = " + transaction.getState());
logger.info("dialog = " + transaction.getDialog());
logger.info("dialogState = "
+ transaction.getDialog().getState());
logger.info("Transaction Time out");
}
public SipProvider createProvider() {
try {
ListeningPoint lp = ProtocolObjects.sipStack.createListeningPoint(myAddress,
myPort, transport);
sipProvider = ProtocolObjects.sipStack.createSipProvider(lp);
logger.info("udp provider " + sipProvider);
return sipProvider;
} catch (Exception ex) {
logger.error(ex);
fail(unexpectedException);
return null;
}
}
public Shootme( int myPort) {
this.myPort = myPort;
}
public static void main(String args[]) throws Exception {
int myPort = new Integer(args[0]).intValue();
logger.addAppender(new ConsoleAppender(new SimpleLayout()));
ProtocolObjects.init("shootme_"+myPort,true);
Shootme shootme = new Shootme(myPort);
shootme.createProvider();
shootme.sipProvider.addSipListener(shootme);
}
public void processIOException(IOExceptionEvent exceptionEvent) {
logger.info("IOException");
}
public void processTransactionTerminated(
TransactionTerminatedEvent transactionTerminatedEvent) {
logger.info("Transaction terminated event recieved");
}
public void processDialogTerminated(
DialogTerminatedEvent dialogTerminatedEvent) {
logger.info("Dialog terminated event recieved");
}
}