Examples of javax.sip.SipProvider.sendResponse()

javax.sip.SipProvider.sendResponse()
Sends the Response statelessly, that is no transaction record is associated with this action. This method implies that the application is functioning as either a stateless proxy or a stateless UAS.
- Stateless proxy - A stateless proxy simply forwards every response it receives upstream and discards information about the response message once the message has been forwarded. A stateless proxy does not have any notion of a transaction.
- Stateless UAS - A stateless UAS does not maintain transaction state. It replies to requests normally, but discards any state that would ordinarily be retained by a UAS after a response has been sent. If a stateless UAS receives a retransmission of a request, it regenerates the response and resends it, just as if it were replying to the first instance of the request. A UAS cannot be stateless unless the request processing for that method would always result in the same response if the requests are identical. Stateless UAS's do not use a transaction layer; they receive requests directly from the transport layer and send responses directly to the transport layer.
@see Response @param response the Response to send statelessly. @throws SipException if the SipProvider cannot send the Response for any reason. @see Response

      // Check that it has a Refer-To, if not bad request
      ReferToHeader refTo = (ReferToHeader) refer.getHeader( ReferToHeader.NAME );
      if (refTo==null) {
        Response bad = messageFactory.createResponse(Response.BAD_REQUEST, refer);
        bad.setReasonPhrase( "Missing Refer-To" );
        sipProvider.sendResponse( bad );
        TestHarness.fail("Bad REFER request. Missing Refer-To.");
      }      


      // New test: first time, only send 100 Trying, to test that retransmission
      // continues for non-INVITE requests (using UDP)

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      // New test: first time, only send 100 Trying, to test that retransmission
      // continues for non-INVITE requests (using UDP)
      // before(!) creating a ServerTransaction! Else retransmissions are filtered
      if (!tryingSent && "udp".equalsIgnoreCase(transport)) {
        tryingSent = true;
        sipProvider.sendResponse( messageFactory.createResponse(100, refer) );
        return;
      }
            
      // Always create a ServerTransaction, best as early as possible in the code
      Response response = null;

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               // Topmost via header is me. As it is reposne to external reqeust
                response.removeFirst(ViaHeader.NAME);
              
                sender=this.sipProvider;
                sender.sendResponse(response);
          } catch (Exception ex) {
              ex.printStackTrace();
          }
    }

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                 // Topmost via header is me. As it is reposne to external reqeust
                response.removeFirst(ViaHeader.NAME);


                sender=this.sipProvider;
                sender.sendResponse(response);
            } catch (Exception ex) {
                ex.printStackTrace();
            }
        }

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               // Topmost via header is me. As it is reposne to external reqeust
                response.removeFirst(ViaHeader.NAME);
              
                sender=this.sipProvider;
                sender.sendResponse(response);
          } catch (Exception ex) {
              ex.printStackTrace();
          }
    }

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      // Check that it has a Refer-To, if not bad request
      ReferToHeader refTo = (ReferToHeader) refer.getHeader( ReferToHeader.NAME );
      if (refTo==null) {
        Response bad = messageFactory.createResponse(Response.BAD_REQUEST, refer);
        bad.setReasonPhrase( "Missing Refer-To" );
        sipProvider.sendResponse( bad );
        TestHarness.fail("Bad REFER request. Missing Refer-To.");
      }      
            
      // Always create a ServerTransaction, best as early as possible in the code
      Response response = null;

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                Response challenge = protocolObjects.messageFactory
                        .createResponse(401, request);
                ToHeader toHeader = (ToHeader) challenge
                        .getHeader(ToHeader.NAME);
                toHeader.setTag("challenge");
                sipProvider.sendResponse(challenge); // dont create ST
                return;
            }


            logger.info("shootme: got an Invite sending OK");
            // logger.info("shootme: " + request);

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                        .createContactHeader(address);
                ToHeader toHeader = (ToHeader) okResponse
                        .getHeader(ToHeader.NAME);
                toHeader.setTag("4321"); // Application is supposed to set.
                okResponse.addHeader(contactHeader);
                sipProvider.sendResponse(okResponse); // Send it through the
                                                        // Provider.


            } catch (Exception ex) {
                ex.printStackTrace();
                System.exit(0);

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                Response challenge = protocolObjects.messageFactory
                        .createResponse(401, request);
                ToHeader toHeader = (ToHeader) challenge
                        .getHeader(ToHeader.NAME);
                toHeader.setTag("challenge");
                sipProvider.sendResponse(challenge); // dont create ST
                return;
            }


            logger.info("shootme: got an Invite sending OK");
            // logger.info("shootme: " + request);

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                ContactHeader contactHeader = headerFactory
                        .createContactHeader(address);
                ToHeader toHeader = (ToHeader) okResponse.getHeader(ToHeader.NAME);
                toHeader.setTag("4321"); // Application is supposed to set.
                okResponse.addHeader(contactHeader);
                sipProvider.sendResponse(okResponse); // Send it through the Provider.




            } catch (Exception ex) {
                ex.printStackTrace();
                System.exit(0);

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