public void receive(org.apache.axis2.context.MessageContext mc) throws AxisFault {

    MessageContext synCtx = MessageContextCreatorForAxis2.getSynapseMessageContext(mc);

    StatisticsReporter.reportForComponent(
        synCtx,
        AspectConfigurationDetectionStrategy.getAspectConfiguration(synCtx),
        ComponentType.PROXYSERVICE);

    boolean traceOn = synCtx.getMainSequence().getTraceState() == SynapseConstants.TRACING_ON;
    boolean traceOrDebugOn = traceOn || log.isDebugEnabled();

    if (traceOrDebugOn) {
      traceOrDebug(traceOn, "Synapse received a new message for message mediation...");
      traceOrDebug(
          traceOn, "Received To: " + (mc.getTo() != null ? mc.getTo().getAddress() : "null"));
      traceOrDebug(
          traceOn, "SOAPAction: " + (mc.getSoapAction() != null ? mc.getSoapAction() : "null"));
      traceOrDebug(
          traceOn, "WSA-Action: " + (mc.getWSAAction() != null ? mc.getWSAAction() : "null"));

      if (traceOn && trace.isTraceEnabled()) {
        String[] cids = mc.getAttachmentMap().getAllContentIDs();
        if (cids != null && cids.length > 0) {
          for (String cid : cids) {
            trace.trace("Attachment : " + cid);
          }
        }
        trace.trace("Envelope : " + mc.getEnvelope());
      }
    }

    // get service log for this message and attach to the message context
    Log serviceLog =
        LogFactory.getLog(
            SynapseConstants.SERVICE_LOGGER_PREFIX + SynapseConstants.SYNAPSE_SERVICE_NAME);
    ((Axis2MessageContext) synCtx).setServiceLog(serviceLog);

    try {
      // invoke synapse message mediation through the main sequence
      synCtx.getEnvironment().injectMessage(synCtx);

    } catch (SynapseException syne) {

      if (!synCtx.getFaultStack().isEmpty()) {
        warn(traceOn, "Executing fault handler due to exception encountered", synCtx);
        ((FaultHandler) synCtx.getFaultStack().pop()).handleFault(synCtx, syne);

      } else {
        warn(
            traceOn,
            "Exception encountered but no fault handler found - " + "message dropped",
            synCtx);
      }
    } finally {
      StatisticsReporter.endReportForAllOnRequestProcessed(synCtx);
    }
  }
Beispiel #2
0
  public static MessageContext sendUsingSwA(String fileName, String targetEPR) throws IOException {

    Options options = new Options();
    options.setTo(new EndpointReference(targetEPR));
    options.setAction("urn:uploadFileUsingSwA");
    options.setProperty(Constants.Configuration.ENABLE_SWA, Constants.VALUE_TRUE);

    ServiceClient sender = new ServiceClient();
    sender.setOptions(options);
    OperationClient mepClient = sender.createClient(ServiceClient.ANON_OUT_IN_OP);

    MessageContext mc = new MessageContext();

    System.out.println("Sending file : " + fileName + " as SwA");
    FileDataSource fileDataSource = new FileDataSource(new File(fileName));
    DataHandler dataHandler = new DataHandler(fileDataSource);
    String attachmentID = mc.addAttachment(dataHandler);

    SOAPFactory factory = OMAbstractFactory.getSOAP11Factory();
    SOAPEnvelope env = factory.getDefaultEnvelope();
    OMNamespace ns = factory.createOMNamespace("http://services.samples/xsd", "m0");
    OMElement payload = factory.createOMElement("uploadFileUsingSwA", ns);
    OMElement request = factory.createOMElement("request", ns);
    OMElement imageId = factory.createOMElement("imageId", ns);
    imageId.setText(attachmentID);
    request.addChild(imageId);
    payload.addChild(request);
    env.getBody().addChild(payload);
    mc.setEnvelope(env);

    mepClient.addMessageContext(mc);
    mepClient.execute(true);
    MessageContext response = mepClient.getMessageContext(WSDLConstants.MESSAGE_LABEL_IN_VALUE);

    SOAPBody body = response.getEnvelope().getBody();
    String imageContentId =
        body.getFirstChildWithName(
                new QName("http://services.samples/xsd", "uploadFileUsingSwAResponse"))
            .getFirstChildWithName(new QName("http://services.samples/xsd", "response"))
            .getFirstChildWithName(new QName("http://services.samples/xsd", "imageId"))
            .getText();

    Attachments attachment = response.getAttachmentMap();
    dataHandler = attachment.getDataHandler(imageContentId);
    File tempFile = File.createTempFile("swa-", ".gif");
    FileOutputStream fos = new FileOutputStream(tempFile);
    dataHandler.writeTo(fos);
    fos.flush();
    fos.close();

    System.out.println("Saved response to file : " + tempFile.getAbsolutePath());

    return response;
  }
  /**
   * Handle the response or error (during a failed send) message received for an outgoing request
   *
   * @param messageID Request message ID
   * @param response the Axis2 MessageContext that has been received and has to be handled
   * @param synapseOutMsgCtx the corresponding (outgoing) Synapse MessageContext for the above Axis2
   *     MC, that holds Synapse specific information such as the error handler stack and local
   *     properties etc.
   * @throws AxisFault if the message cannot be processed
   */
  private void handleMessage(
      String messageID,
      MessageContext response,
      org.apache.synapse.MessageContext synapseOutMsgCtx,
      AsyncCallback callback)
      throws AxisFault {
    // apply the tenant information to the out message context
    TenantInfoConfigurator configurator =
        synapseOutMsgCtx.getEnvironment().getTenantInfoConfigurator();
    if (configurator != null) {
      configurator.applyTenantInfo(synapseOutMsgCtx);
    }
    Object o = response.getProperty(SynapseConstants.SENDING_FAULT);
    if (o != null && Boolean.TRUE.equals(o)) {

      StatisticsReporter.reportFaultForAll(
          synapseOutMsgCtx, ErrorLogFactory.createErrorLog(response));
      // there is a sending fault. propagate the fault to fault handlers.

      Stack faultStack = synapseOutMsgCtx.getFaultStack();
      if (faultStack != null && !faultStack.isEmpty()) {

        // if we have access to the full synapseOutMsgCtx.getEnvelope(), then let
        // it flow with the error details. Else, replace its envelope with the
        // fault envelope
        try {
          synapseOutMsgCtx.getEnvelope().build();
        } catch (OMException x) {
          synapseOutMsgCtx.setEnvelope(response.getEnvelope());
        }

        Exception e = (Exception) response.getProperty(SynapseConstants.ERROR_EXCEPTION);

        synapseOutMsgCtx.setProperty(SynapseConstants.SENDING_FAULT, Boolean.TRUE);
        synapseOutMsgCtx.setProperty(
            SynapseConstants.ERROR_CODE, response.getProperty(SynapseConstants.ERROR_CODE));
        synapseOutMsgCtx.setProperty(
            SynapseConstants.ERROR_MESSAGE, response.getProperty(SynapseConstants.ERROR_MESSAGE));
        synapseOutMsgCtx.setProperty(
            SynapseConstants.ERROR_DETAIL, response.getProperty(SynapseConstants.ERROR_DETAIL));
        synapseOutMsgCtx.setProperty(SynapseConstants.ERROR_EXCEPTION, e);

        if (log.isDebugEnabled()) {
          log.debug(
              "[Failed Request Message ID : "
                  + messageID
                  + "]"
                  + " [New to be Retried Request Message ID : "
                  + synapseOutMsgCtx.getMessageID()
                  + "]");
        }

        int errorCode = (Integer) response.getProperty(SynapseConstants.ERROR_CODE);

        // If a timeout has occured and the timeout action of the callback is to discard the message
        if (errorCode == SynapseConstants.NHTTP_CONNECTION_TIMEOUT
            && callback.getTimeOutAction() == SynapseConstants.DISCARD) {
          // Do not execute any fault sequences. Discard message
          if (log.isWarnEnabled()) {
            log.warn(
                "Synapse timed out for the request with Message ID : "
                    + messageID
                    + ". Ignoring fault handlers since the timeout action is DISCARD");
          }
          faultStack.removeAllElements();
        } else {
          ((FaultHandler) faultStack.pop()).handleFault(synapseOutMsgCtx, null);
        }
      }

    } else {

      // there can always be only one instance of an Endpoint in the faultStack of a message
      // if the send was successful, so remove it before we proceed any further
      Stack faultStack = synapseOutMsgCtx.getFaultStack();

      Endpoint successfulEndpoint = null;
      if (faultStack != null && !faultStack.isEmpty() && faultStack.peek() instanceof Endpoint) {
        successfulEndpoint = (Endpoint) faultStack.pop();
      }

      if (log.isDebugEnabled()) {
        log.debug("Synapse received an asynchronous response message");
        log.debug(
            "Received To: " + (response.getTo() != null ? response.getTo().getAddress() : "null"));
        log.debug(
            "SOAPAction: "
                + (response.getSoapAction() != null ? response.getSoapAction() : "null"));
        log.debug(
            "WSA-Action: " + (response.getWSAAction() != null ? response.getWSAAction() : "null"));
        String[] cids = response.getAttachmentMap().getAllContentIDs();
        if (cids != null && cids.length > 0) {
          for (String cid : cids) {
            log.debug("Attachment : " + cid);
          }
        }
        log.debug("Body : \n" + response.getEnvelope());
      }
      MessageContext axisOutMsgCtx =
          ((Axis2MessageContext) synapseOutMsgCtx).getAxis2MessageContext();

      // Processes 'Accept-Encoding'
      ResponseAcceptEncodingProcessor.process(response, axisOutMsgCtx);

      response.setServiceContext(null);
      response.setOperationContext(axisOutMsgCtx.getOperationContext());
      response.setAxisMessage(
          axisOutMsgCtx.getAxisOperation().getMessage(WSDLConstants.MESSAGE_LABEL_OUT_VALUE));

      // set properties on response
      response.setServerSide(true);
      response.setProperty(SynapseConstants.ISRESPONSE_PROPERTY, Boolean.TRUE);
      response.setProperty(
          MessageContext.TRANSPORT_OUT, axisOutMsgCtx.getProperty(MessageContext.TRANSPORT_OUT));
      response.setProperty(
          org.apache.axis2.Constants.OUT_TRANSPORT_INFO,
          axisOutMsgCtx.getProperty(org.apache.axis2.Constants.OUT_TRANSPORT_INFO));
      response.setTransportIn(axisOutMsgCtx.getTransportIn());
      response.setTransportOut(axisOutMsgCtx.getTransportOut());

      // If request is REST assume that the response is REST too
      response.setDoingREST(axisOutMsgCtx.isDoingREST());
      if (axisOutMsgCtx.isDoingMTOM()) {
        response.setDoingMTOM(true);
        response.setProperty(
            org.apache.axis2.Constants.Configuration.ENABLE_MTOM,
            org.apache.axis2.Constants.VALUE_TRUE);
      }
      if (axisOutMsgCtx.isDoingSwA()) {
        response.setDoingSwA(true);
        response.setProperty(
            org.apache.axis2.Constants.Configuration.ENABLE_SWA,
            org.apache.axis2.Constants.VALUE_TRUE);
      }

      // when axis2 receives a soap message without addressing headers it users
      // DISABLE_ADDRESSING_FOR_OUT_MESSAGES property to keep it and hence avoid addressing
      // headers on the response. this causes a problem for synapse if the original message
      // it receivs (from client) has addressing and the synaspse service invocation has not
      // engage addressing. in this case when synapse receives the response from the server
      // addessing In handler dissable addressing since that response does not have addressing
      // headers. synapse sends the response to its orignal client using the same message
      // context. Then this response does not have addressing headers since it already
      // disable. to avoid this we need to set the DISABLE_ADDRESSING_FOR_OUT_MESSAGES
      // property state to original state.
      if (axisOutMsgCtx.getProperty(AddressingConstants.DISABLE_ADDRESSING_FOR_OUT_MESSAGES)
          != null) {

        response.setProperty(
            AddressingConstants.DISABLE_ADDRESSING_FOR_OUT_MESSAGES,
            axisOutMsgCtx.getProperty(AddressingConstants.DISABLE_ADDRESSING_FOR_OUT_MESSAGES));
      } else {
        response.removeProperty(AddressingConstants.DISABLE_ADDRESSING_FOR_OUT_MESSAGES);
      }

      Object messageType =
          axisOutMsgCtx.getProperty(org.apache.axis2.Constants.Configuration.MESSAGE_TYPE);
      if (!HTTPConstants.MEDIA_TYPE_X_WWW_FORM.equals(messageType)) {
        // copy the message type property that's used by the out message to the
        // response message
        response.setProperty(org.apache.axis2.Constants.Configuration.MESSAGE_TYPE, messageType);
      }

      // compare original received message (axisOutMsgCtx) soap version with the response
      // if they are different change to original version
      if (axisOutMsgCtx.isSOAP11() != response.isSOAP11()) {
        if (axisOutMsgCtx.isSOAP11()) {
          SOAPUtils.convertSOAP12toSOAP11(response);
        } else {
          SOAPUtils.convertSOAP11toSOAP12(response);
        }
      }

      if (axisOutMsgCtx.getMessageID() != null) {
        response.setRelationships(new RelatesTo[] {new RelatesTo(axisOutMsgCtx.getMessageID())});
      }

      response.setReplyTo(axisOutMsgCtx.getReplyTo());
      response.setFaultTo(axisOutMsgCtx.getFaultTo());

      if (axisOutMsgCtx.isPropertyTrue(NhttpConstants.IGNORE_SC_ACCEPTED)) {
        response.setProperty(NhttpConstants.FORCE_SC_ACCEPTED, Constants.VALUE_TRUE);
      }

      // create the synapse message context for the response
      Axis2MessageContext synapseInMessageContext =
          new Axis2MessageContext(
              response, synapseOutMsgCtx.getConfiguration(), synapseOutMsgCtx.getEnvironment());
      synapseInMessageContext.setResponse(true);

      Object obj = synapseOutMsgCtx.getProperty(SynapseConstants.FORCE_ERROR_PROPERTY);
      String errorOnSOAPFault = (String) obj;

      if (Constants.VALUE_TRUE.equals(errorOnSOAPFault) && successfulEndpoint != null) {

        if (log.isDebugEnabled()) {
          log.debug("FORCE_ERROR_ON_SOAP_FAULT is true, checking for SOAPFault");
        }

        try {
          RelayUtils.buildMessage(
              ((Axis2MessageContext) synapseInMessageContext).getAxis2MessageContext(), true);
        } catch (Exception e) {
          // handleException("Error while building message", e, synapseInMessageContext);
        }

        if ((synapseInMessageContext.getEnvelope() != null)
            && synapseInMessageContext.getEnvelope().hasFault()) {

          if (log.isDebugEnabled()) {
            log.debug(
                "SOAPFault found in response message, forcing endpoint "
                    + successfulEndpoint.getName()
                    + " to fail");
          }

          // setup new pipe configuration..if failure happens (this will be setup as the source
          // writer and during the TargetContext
          // clean up operation the writer will be reset and pull to the buffer
          MessageContext axis2OUTMC =
              ((Axis2MessageContext) synapseOutMsgCtx).getAxis2MessageContext();
          NHttpServerConnection conn =
              (NHttpServerConnection) axis2OUTMC.getProperty("pass-through.Source-Connection");
          if (conn != null) {
            SourceConfiguration sourceConfiguration =
                (SourceConfiguration) axis2OUTMC.getProperty("PASS_THROUGH_SOURCE_CONFIGURATION");
            Pipe pipe =
                new Pipe(
                    conn,
                    sourceConfiguration.getBufferFactory().getBuffer(),
                    "source",
                    sourceConfiguration);
            axis2OUTMC.setProperty(PassThroughConstants.PASS_THROUGH_PIPE, pipe);
          }

          StatisticsReporter.reportFaultForAll(
              synapseOutMsgCtx, ErrorLogFactory.createErrorLog(response));
          synapseOutMsgCtx.setProperty(SynapseConstants.SENDING_FAULT, Boolean.TRUE);
          synapseOutMsgCtx.setProperty(
              SynapseConstants.ERROR_CODE, SynapseConstants.ENDPOINT_CUSTOM_ERROR);
          ((FaultHandler) successfulEndpoint).handleFault(synapseOutMsgCtx, null);
          return;
        } else {
          successfulEndpoint.onSuccess();
        }

      } else if (successfulEndpoint != null) {
        successfulEndpoint.onSuccess();
      }

      synapseInMessageContext.setTo(
          new EndpointReference(AddressingConstants.Final.WSA_ANONYMOUS_URL));
      synapseInMessageContext.setTracingState(synapseOutMsgCtx.getTracingState());

      // set the properties of the original MC to the new MC

      for (Object key : synapseOutMsgCtx.getPropertyKeySet()) {
        synapseInMessageContext.setProperty(
            (String) key, synapseOutMsgCtx.getProperty((String) key));
      }

      // Copy SequenceCallStack from original MC to the new MC
      if (synapseOutMsgCtx.isContinuationEnabled()) {

        // Set the message direction
        if (!synapseOutMsgCtx.isResponse()) {
          synapseInMessageContext.setResponse(false);
        }

        Stack<ContinuationState> seqContinuationStates =
            synapseOutMsgCtx.getContinuationStateStack();
        for (int i = 0; i < seqContinuationStates.size(); i++) {
          synapseInMessageContext.pushContinuationState(seqContinuationStates.get(i));
        }
      }

      // If this response is related to session affinity endpoints -Server initiated session
      Dispatcher dispatcher =
          (Dispatcher)
              synapseOutMsgCtx.getProperty(SynapseConstants.PROP_SAL_ENDPOINT_CURRENT_DISPATCHER);
      if (dispatcher != null && dispatcher.isServerInitiatedSession()) {
        dispatcher.updateSession(synapseInMessageContext);
      }

      StatisticsReporter.reportForAllOnResponseReceived(synapseInMessageContext);

      // send the response message through the synapse mediation flow
      try {
        synapseOutMsgCtx.getEnvironment().injectMessage(synapseInMessageContext);
      } catch (SynapseException syne) {
        Stack stack = synapseInMessageContext.getFaultStack();
        if (stack != null && !stack.isEmpty()) {
          ((FaultHandler) stack.pop()).handleFault(synapseInMessageContext, syne);
        } else {
          log.error(
              "Synapse encountered an exception, "
                  + "No error handlers found - [Message Dropped]\n"
                  + syne.getMessage());
        }
      }
    }
  }
  public void receive(org.apache.axis2.context.MessageContext mc) throws AxisFault {

    boolean traceOn = proxy.getAspectConfiguration().isTracingEnabled();
    boolean traceOrDebugOn = traceOn || log.isDebugEnabled();

    CustomLogSetter.getInstance().setLogAppender(proxy.getArtifactContainerName());

    String remoteAddr =
        (String) mc.getProperty(org.apache.axis2.context.MessageContext.REMOTE_ADDR);

    if (traceOrDebugOn) {
      traceOrDebug(
          traceOn,
          "Proxy Service "
              + name
              + " received a new message"
              + (remoteAddr != null ? " from : " + remoteAddr : "..."));
      traceOrDebug(
          traceOn, ("Message To: " + (mc.getTo() != null ? mc.getTo().getAddress() : "null")));
      traceOrDebug(
          traceOn, ("SOAPAction: " + (mc.getSoapAction() != null ? mc.getSoapAction() : "null")));
      traceOrDebug(
          traceOn, ("WSA-Action: " + (mc.getWSAAction() != null ? mc.getWSAAction() : "null")));

      if (traceOn && trace.isTraceEnabled()) {
        String[] cids = mc.getAttachmentMap().getAllContentIDs();
        if (cids != null && cids.length > 0) {
          for (String cid : cids) {
            trace.trace("With attachment content ID : " + cid);
          }
        }
        trace.trace("Envelope : " + mc.getEnvelope());
      }
    }

    MessageContext synCtx = MessageContextCreatorForAxis2.getSynapseMessageContext(mc);
    Integer statisticReportingIndex = null;
    // Statistic reporting
    boolean isStatisticsEnabled = RuntimeStatisticCollector.isStatisticsEnabled();
    if (isStatisticsEnabled) {
      statisticReportingIndex =
          OpenEventCollector.reportEntryEvent(
              synCtx, this.name, proxy.getAspectConfiguration(), ComponentType.PROXYSERVICE);
    }

    Object inboundServiceParam =
        proxy.getParameterMap().get(SynapseConstants.INBOUND_PROXY_SERVICE_PARAM);
    Object inboundMsgCtxParam = mc.getProperty(SynapseConstants.IS_INBOUND);

    // check whether the message is from Inbound EP
    if (inboundMsgCtxParam == null || !(boolean) inboundMsgCtxParam) {
      // check whether service parameter is set to true or null, then block this request
      if (inboundServiceParam != null && (Boolean.valueOf((String) inboundServiceParam))) {
        /*
        return because same proxy is exposed via InboundEP and service parameter(inbound.only) is set to
        true, which disable normal http transport proxy
        */
        if (!synCtx.getFaultStack().isEmpty()) {
          if (log.isDebugEnabled()) {
            log.debug(
                "Executing fault handler - message discarded due to the proxy is allowed only via InboundEP");
          }
          (synCtx.getFaultStack().pop())
              .handleFault(
                  synCtx,
                  new Exception(
                      "Proxy Service "
                          + name
                          + " message discarded due to the proxy is allowed only via InboundEP"));
        } else {
          if (log.isDebugEnabled()) {
            log.debug(
                "Proxy Service "
                    + name
                    + " message discarded due to the proxy is "
                    + "allowed only via InboundEP");
          }
        }
        return;
      }
    }

    TenantInfoConfigurator configurator = synCtx.getEnvironment().getTenantInfoConfigurator();
    if (configurator != null) {
      configurator.extractTenantInfo(synCtx);
    }
    TransportInDescription trpInDesc = mc.getTransportIn();
    if (trpInDesc != null) {
      synCtx.setProperty(SynapseConstants.TRANSPORT_IN_NAME, trpInDesc.getName());
    }

    // get service log for this message and attach to the message context also set proxy name
    Log serviceLog = LogFactory.getLog(SynapseConstants.SERVICE_LOGGER_PREFIX + name);
    ((Axis2MessageContext) synCtx).setServiceLog(serviceLog);

    synCtx.setProperty(SynapseConstants.PROXY_SERVICE, name);
    //        synCtx.setTracingState(proxy.getTraceState());

    synCtx.setProperty(SynapseConstants.IS_CLIENT_DOING_REST, mc.isDoingREST());
    synCtx.setProperty(SynapseConstants.IS_CLIENT_DOING_SOAP11, mc.isSOAP11());

    try {
      if (synCtx.getEnvironment().isDebuggerEnabled()) {
        SynapseDebugManager debugManager = synCtx.getEnvironment().getSynapseDebugManager();
        debugManager.acquireMediationFlowLock();
        debugManager.advertiseMediationFlowStartPoint(synCtx);
        if (!synCtx.isResponse()) {
          SynapseWireLogHolder wireLogHolder =
              (SynapseWireLogHolder)
                  ((Axis2MessageContext) synCtx)
                      .getAxis2MessageContext()
                      .getProperty(SynapseDebugInfoHolder.SYNAPSE_WIRE_LOG_HOLDER_PROPERTY);
          if (wireLogHolder == null) {
            wireLogHolder = new SynapseWireLogHolder();
          }
          if (synCtx.getProperty(SynapseConstants.PROXY_SERVICE) != null
              && !synCtx.getProperty(SynapseConstants.PROXY_SERVICE).toString().isEmpty()) {
            wireLogHolder.setProxyName(
                synCtx.getProperty(SynapseConstants.PROXY_SERVICE).toString());
          }
          ((Axis2MessageContext) synCtx)
              .getAxis2MessageContext()
              .setProperty(SynapseDebugInfoHolder.SYNAPSE_WIRE_LOG_HOLDER_PROPERTY, wireLogHolder);
        }
      }
      synCtx.setProperty(SynapseConstants.RESPONSE_STATE, new ResponseState());
      List handlers = synCtx.getEnvironment().getSynapseHandlers();
      Iterator<SynapseHandler> iterator = handlers.iterator();
      while (iterator.hasNext()) {
        SynapseHandler handler = iterator.next();
        if (!handler.handleRequestInFlow(synCtx)) {
          return;
        }
      }

      Mediator mandatorySeq = synCtx.getConfiguration().getMandatorySequence();
      if (mandatorySeq != null) {
        if (log.isDebugEnabled()) {
          log.debug(
              "Start mediating the message in the "
                  + "pre-mediate state using the mandatory sequence");
        }

        if (!mandatorySeq.mediate(synCtx)) {
          if (log.isDebugEnabled()) {
            log.debug(
                "Request message for the proxy service "
                    + name
                    + " dropped in "
                    + "the pre-mediation state by the mandatory sequence : \n"
                    + synCtx);
          }
          return;
        }
      }

      // setup fault sequence - i.e. what happens when something goes wrong with this message
      proxy.registerFaultHandler(synCtx);

      boolean inSequenceResult = true;

      // Using inSequence for the incoming message mediation
      if (proxy.getTargetInSequence() != null) {

        Mediator inSequence = synCtx.getSequence(proxy.getTargetInSequence());
        if (inSequence != null) {
          traceOrDebug(
              traceOn,
              "Using sequence named : "
                  + proxy.getTargetInSequence()
                  + " for incoming message mediation");
          inSequenceResult = inSequence.mediate(synCtx);

        } else {
          handleException("Unable to find in-sequence : " + proxy.getTargetInSequence(), synCtx);
        }

      } else if (proxy.getTargetInLineInSequence() != null) {
        traceOrDebug(
            traceOn, "Using the anonymous " + "in-sequence of the proxy service for mediation");
        inSequenceResult = proxy.getTargetInLineInSequence().mediate(synCtx);
      }

      // if inSequence returns true, forward message to endpoint
      if (inSequenceResult) {
        if (proxy.getTargetEndpoint() != null) {
          Endpoint endpoint = synCtx.getEndpoint(proxy.getTargetEndpoint());

          if (endpoint != null) {
            traceOrDebug(
                traceOn, "Forwarding message to the endpoint : " + proxy.getTargetEndpoint());
            endpoint.send(synCtx);

          } else {
            handleException(
                "Unable to find the endpoint specified : " + proxy.getTargetEndpoint(), synCtx);
          }

        } else if (proxy.getTargetInLineEndpoint() != null) {
          traceOrDebug(
              traceOn,
              "Forwarding the message to the anonymous " + "endpoint of the proxy service");
          proxy.getTargetInLineEndpoint().send(synCtx);
        }
      }

    } catch (SynapseException syne) {

      if (!synCtx.getFaultStack().isEmpty()) {
        warn(traceOn, "Executing fault handler due to exception encountered", synCtx);
        ((FaultHandler) synCtx.getFaultStack().pop()).handleFault(synCtx, syne);

      } else {
        warn(
            traceOn,
            "Exception encountered but no fault handler found - " + "message dropped",
            synCtx);
      }
    } finally {
      // Statistic reporting
      if (isStatisticsEnabled) {
        CloseEventCollector.tryEndFlow(
            synCtx, this.name, ComponentType.PROXYSERVICE, statisticReportingIndex, true);
      }
      if (synCtx.getEnvironment().isDebuggerEnabled()) {
        SynapseDebugManager debugManager = synCtx.getEnvironment().getSynapseDebugManager();
        debugManager.advertiseMediationFlowTerminatePoint(synCtx);
        debugManager.releaseMediationFlowLock();
      }
    }
  }