JAIN SIP API を使用して SIP 登録要求を送信しようとしています。クラスに javax.sip.SipListener を実装しました。私のプログラムはリクエストを正常に送信し、さらに sip サーバーから 401 の無許可の応答を受け取りました。これは、wireshark を使用して確認しました。しかし、processResponse() が呼び出されていません。processResponse() 内で System.out.Println("response received") を使用して、呼び出されたかどうかを確認しました。なぜこれが起こっているのか誰でも助けてくれますか？私は頭をたくさん燃やしてしまい、理解できませんでした。以下にコードを貼り付けました。
public class CoreEngine は javax.sip.SipListener を実装します{
//public localip=Inet4Address.getLocalHost().getHostAddress();
SipFactory sipFactory = null;
SipStack sipStack = null;
Properties properties;
HeaderFactory headerFactory;
AddressFactory addressFactory;
MessageFactory messageFactory;
SipProvider sipProvider ;
ListeningPoint lp;
ContactHeader contactHeader;
ClientTransaction inviteTid;
public void init() throws Exception {
sipFactory = SipFactory.getInstance();
sipFactory.setPathName("gov.nist");
properties = new Properties();
properties.setProperty("javax.sip.STACK_NAME", "Sip_Test");
// Create SipStack object
sipStack = sipFactory.createSipStack(properties);
headerFactory = sipFactory.createHeaderFactory();
addressFactory = sipFactory.createAddressFactory();
messageFactory = sipFactory.createMessageFactory();
lp = sipStack.createListeningPoint("192.168.0.205",
5060, ListeningPoint.UDP);
sipProvider = sipStack.createSipProvider(lp);
}
public void register() throws Exception {
String fromName = "223344";
String fromSipAddress = "173.194.117.84";
String toSipAddress = "173.194.117.84";
String toUser = "223344";
SipURI fromAddress = addressFactory.createSipURI(fromName,
fromSipAddress);
System.out.println("sipuri fromaddress"+fromAddress);
Address fromNameAddress = addressFactory.createAddress(fromAddress);
FromHeader fromHeader = headerFactory.createFromHeader(
fromNameAddress, null);
SipURI toAddress = addressFactory
.createSipURI(toUser, toSipAddress);
Address toNameAddress = addressFactory.createAddress(toAddress);
ToHeader toHeader = headerFactory.createToHeader(toNameAddress,
null);
URI requestURI = addressFactory.createURI(
"sip:" + "173.194.117.84");
List<ViaHeader> viaHeaders = new ArrayList<ViaHeader>();
String ipAddress = lp.getIPAddress();
ViaHeader viaHeader = headerFactory.createViaHeader(ipAddress,
lp.getPort(),
lp.getTransport(), null);
viaHeaders.add(viaHeader);
CallIdHeader callIdHeader = sipProvider.getNewCallId();
CSeqHeader cSeqHeader = headerFactory.createCSeqHeader(1L,
Request.REGISTER);
MaxForwardsHeader maxForwards = headerFactory
.createMaxForwardsHeader(70);
Request request = messageFactory.createRequest(requestURI,
Request.REGISTER, callIdHeader, cSeqHeader, fromHeader,
toHeader, viaHeaders, maxForwards);
SipURI contactURI = addressFactory.createSipURI(fromName, "173.194.117.84");
contactURI.setPort(sipProvider.getListeningPoint(lp.getTransport())
.getPort());
Address contactAddress = addressFactory.createAddress(contactURI);
contactHeader = headerFactory.createContactHeader(contactAddress);
request.addHeader(contactHeader);
Header extensionHeader = headerFactory.createHeader("Expires",
"120");
request.addHeader(extensionHeader);
System.out.println("request is"+ request);
inviteTid = sipProvider.getNewClientTransaction(request);
inviteTid.sendRequest();
}
public void processRequest(RequestEvent requestEvent) {
}
public void processResponse(ResponseEvent responseEvent) {
System.out.println("Response received");
System.out.println("response event"+ responseEvent.getResponse().getStatusCode());
}
public void processTimeout(TimeoutEvent timeoutEvent) {
}
public void processIOException(IOExceptionEvent exceptionEvent) {
}
public void processTransactionTerminated(TransactionTerminatedEvent transactionTerminatedEvent) {
}
public void processDialogTerminated(DialogTerminatedEvent dialogTerminatedEvent) {
}
}