Examples of org.apache.axis2.context.MessageContext

org.apache.axis2.context.MessageContext

Axis2 states are held in two information models, called description hierarchy and context hierarchy. Description hierarchy hold deployment configuration and it's values does not change unless deployment configuration change occurs where Context hierarchy hold run time information. Both hierarchies consists four levels, Global, Service Group, Operation and Message. Please look at "Information Model" section of "Axis2 Architecture Guide" for more information.

MessageContext hold run time information about one Message invocation. It hold reference to OperationContext, ServiceGroupContext, and Configuration Context tied with current message. For an example if you need accesses to other messages of the current invocation, you can get to them via OperationContext. Addition to class attributes define in Message context, message context stores the information as name value pairs. Those name value pairs,and class attributes tweak the execution behavior of message context and some of them can be find in org.apache.axis2.Constants class. (TODO we should provide list of supported options). You may set them at any level of context hierarchy and they will affect invocations related to their child elements.

   }


    private static MessageContext cloneForSend(MessageContext ori, String preserveAddressing)
            throws AxisFault {


        MessageContext newMC = MessageHelper.clonePartially(ori);


        newMC.setEnvelope(ori.getEnvelope());
        if (preserveAddressing != null && Boolean.parseBoolean(preserveAddressing)) {
            newMC.setMessageID(ori.getMessageID());
        } else {
            MessageHelper.removeAddressingHeaders(newMC);
        }


        newMC.setProperty(org.apache.axis2.context.MessageContext.TRANSPORT_HEADERS,
            ori.getProperty(org.apache.axis2.context.MessageContext.TRANSPORT_HEADERS));


        return newMC;
    }

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            if (completed) {
        throw new AxisFault(Messages.getMessage("mepiscomplted"));
      }


            // if the OUT message is not set on the operation context, throw a fault
            MessageContext outMsgCtx = oc.getMessageContext(WSDLConstants.MESSAGE_LABEL_OUT_VALUE);
      if (outMsgCtx == null) {
        throw new AxisFault(Messages.getMessage("outmsgctxnull"));
      }


            ConfigurationContext cfgCtx = sc.getConfigurationContext();


            // set ClientOptions to the current outgoing message
            outMsgCtx.setOptions(options);


      // do Target Resolution
      TargetResolver tr = cfgCtx.getAxisConfiguration().getTargetResolverChain();
            if (tr != null) {
                tr.resolveTarget(outMsgCtx);
            }


            // if the transport to use for sending is not specified, try to find it from the URL
      TransportOutDescription transportOut = options.getTransportOut();
      if (transportOut == null) {
        EndpointReference toEPR =
                    (options.getTo() != null) ? options.getTo() : outMsgCtx.getTo();
        transportOut =
                    ClientUtils.inferOutTransport(cfgCtx.getAxisConfiguration(), toEPR, outMsgCtx);
      }
      outMsgCtx.setTransportOut(transportOut);


      if (options.getTransportIn() == null && outMsgCtx.getTransportIn() == null) {
        outMsgCtx.setTransportIn(ClientUtils.inferInTransport(
                        cfgCtx.getAxisConfiguration(), options, outMsgCtx));
      } else if (outMsgCtx.getTransportIn() == null) {
        outMsgCtx.setTransportIn(options.getTransportIn());
      }


            // add reference parameters to To EPR
            addReferenceParameters(outMsgCtx);


            if (options.isUseSeparateListener()) {


        options.setTransportIn(outMsgCtx.getConfigurationContext()
            .getAxisConfiguration().getTransportIn(Constants.TRANSPORT_HTTP));


        SynapseCallbackReceiver callbackReceiver =
                        (SynapseCallbackReceiver) axisOp.getMessageReceiver();
                
                ((Axis2MessageContext)((AsyncCallback)
                        axisCallback).getSynapseOutMsgCtx()).getAxis2MessageContext().setProperty(
                        NhttpConstants.IGNORE_SC_ACCEPTED, Constants.VALUE_TRUE);
                callbackReceiver.addCallback(outMsgCtx.getMessageID(), axisCallback);
                
                EndpointReference replyToFromTransport = outMsgCtx.getConfigurationContext()
                        .getListenerManager().getEPRforService(sc.getAxisService().getName(),
                        axisOp.getName().getLocalPart(), outMsgCtx.getTransportOut().getName());


        if (outMsgCtx.getReplyTo() == null) {
          outMsgCtx.setReplyTo(replyToFromTransport);
        } else {
          outMsgCtx.getReplyTo().setAddress(replyToFromTransport.getAddress());
        }


        outMsgCtx.getConfigurationContext().registerOperationContext(
            outMsgCtx.getMessageID(), oc);


                AxisEngine.send(outMsgCtx);


        // Options object reused so soapAction needs to be removed so
        // that soapAction+wsa:Action on response don't conflict
        options.setAction("");


      } else {


                SynapseCallbackReceiver callbackReceiver =
                    (SynapseCallbackReceiver) axisOp.getMessageReceiver();
                callbackReceiver.addCallback(outMsgCtx.getMessageID(), axisCallback);
                send(outMsgCtx);
      }
    }

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    private void send(MessageContext msgctx) throws AxisFault {


      // create the responseMessageContext and set that its related to the current outgoing
            // message, so that it could be tied back to the original request even if the response
            // envelope does not contain addressing headers
            MessageContext responseMessageContext = new MessageContext();
            responseMessageContext.setMessageID(msgctx.getMessageID());
            responseMessageContext.setProperty(
                    SynapseConstants.RELATES_TO_FOR_POX, msgctx.getMessageID());
            responseMessageContext.setOptions(options);
            responseMessageContext.setServerSide(true);
      addMessageContext(responseMessageContext);


            AxisEngine.send(msgctx);


            // did the engine receive a immediate synchronous response?
            // e.g. sometimes the transport sender may listen for a syncronous reply
      if (msgctx.getProperty(MessageContext.TRANSPORT_IN) != null) {


                responseMessageContext.setOperationContext(msgctx.getOperationContext());                
                responseMessageContext.setAxisMessage(
                    msgctx.getOperationContext().getAxisOperation().
                    getMessage(WSDLConstants.MESSAGE_LABEL_IN_VALUE));
                responseMessageContext.setAxisService(msgctx.getAxisService());


                responseMessageContext.setProperty(MessageContext.TRANSPORT_OUT,
                    msgctx.getProperty(MessageContext.TRANSPORT_OUT));
                responseMessageContext.setProperty(org.apache.axis2.Constants.OUT_TRANSPORT_INFO,
                    msgctx.getProperty(org.apache.axis2.Constants.OUT_TRANSPORT_INFO));


                responseMessageContext.setProperty(
                    org.apache.synapse.SynapseConstants.ISRESPONSE_PROPERTY, Boolean.TRUE);
                responseMessageContext.setTransportIn(msgctx.getTransportIn());
                responseMessageContext.setTransportOut(msgctx.getTransportOut());


                // If request is REST assume that the responseMessageContext is REST too
                responseMessageContext.setDoingREST(msgctx.isDoingREST());


                responseMessageContext.setProperty(MessageContext.TRANSPORT_IN,
                    msgctx.getProperty(MessageContext.TRANSPORT_IN));
                responseMessageContext.setTransportIn(msgctx.getTransportIn());
                responseMessageContext.setTransportOut(msgctx.getTransportOut());


                // Options object reused above so soapAction needs to be removed so
                // that soapAction+wsa:Action on response don't conflict
                responseMessageContext.setSoapAction("");


                if (responseMessageContext.getEnvelope() == null) {
                    // If request is REST we assume the responseMessageContext is
                    // REST, so set the variable


                    SOAPEnvelope resenvelope =
                        TransportUtils.createSOAPMessage(responseMessageContext);


                    if (resenvelope != null) {
                        responseMessageContext.setEnvelope(resenvelope);
                        AxisEngine.receive(responseMessageContext);
                        if (responseMessageContext.getReplyTo() != null) {
                            sc.setTargetEPR(responseMessageContext.getReplyTo());
                        }


                        complete(msgctx);
                    } else {
                        throw new AxisFault(

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        msgContext.setProperty(HTTPConstants.MC_HTTP_STATUS_CODE, new Integer(method.getStatusCode()));
        Header header = method.getResponseHeader(HTTPConstants.HEADER_CONTENT_TYPE);


        if (header != null) {
            HeaderElement[] headers = header.getElements();
            MessageContext inMessageContext = msgContext.getOperationContext().getMessageContext(
                    WSDLConstants.MESSAGE_LABEL_IN_VALUE);


            Object contentType = header.getValue();
            Object charSetEnc = null;


            for (int i = 0; i < headers.length; i++) {
                NameValuePair charsetEnc = headers[i].getParameterByName(
                        HTTPConstants.CHAR_SET_ENCODING);
                if (charsetEnc != null) {
                    charSetEnc = charsetEnc.getValue();
                }
            }


            if (inMessageContext != null) {
                inMessageContext
                        .setProperty(Constants.Configuration.CONTENT_TYPE, contentType);
                inMessageContext
                        .setProperty(Constants.Configuration.CHARACTER_SET_ENCODING, charSetEnc);
            } else {


                // Transport details will be stored in a HashMap so that anybody interested can
                // retrieve them

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  private static final Logger log = Red5LoggerFactory.getLogger(FileService.class, ScopeApplicationAdapter.webAppRootKey);
  
  public ServletContext getServletContext()
  {
    MessageContext mc = MessageContext.getCurrentMessageContext();
    return (ServletContext) mc.getProperty(HTTPConstants.MC_HTTP_SERVLETCONTEXT);
  }

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    private void send(MessageContext msgctx) throws AxisFault {


      // create the responseMessageContext and set that its related to the current outgoing
            // message, so that it could be tied back to the original request even if the response
            // envelope does not contain addressing headers
            MessageContext responseMessageContext = new MessageContext();
            responseMessageContext.setMessageID(msgctx.getMessageID());
            responseMessageContext.setProperty(
                    SynapseConstants.RELATES_TO_FOR_POX, msgctx.getMessageID());
            responseMessageContext.setOptions(options);
            responseMessageContext.setServerSide(true);
      addMessageContext(responseMessageContext);


            AxisEngine.send(msgctx);


            // did the engine receive a immediate synchronous response?
            // e.g. sometimes the transport sender may listen for a syncronous reply
      if (msgctx.getProperty(MessageContext.TRANSPORT_IN) != null) {


                responseMessageContext.setOperationContext(msgctx.getOperationContext());                
                responseMessageContext.setAxisMessage(
                    msgctx.getOperationContext().getAxisOperation().
                    getMessage(WSDLConstants.MESSAGE_LABEL_IN_VALUE));
                responseMessageContext.setAxisService(msgctx.getAxisService());


                responseMessageContext.setProperty(MessageContext.TRANSPORT_OUT,
                    msgctx.getProperty(MessageContext.TRANSPORT_OUT));
                responseMessageContext.setProperty(org.apache.axis2.Constants.OUT_TRANSPORT_INFO,
                    msgctx.getProperty(org.apache.axis2.Constants.OUT_TRANSPORT_INFO));


                responseMessageContext.setProperty(
                    org.apache.synapse.SynapseConstants.ISRESPONSE_PROPERTY, Boolean.TRUE);
                responseMessageContext.setTransportIn(msgctx.getTransportIn());
                responseMessageContext.setTransportOut(msgctx.getTransportOut());


                // If request is REST assume that the responseMessageContext is REST too
                responseMessageContext.setDoingREST(msgctx.isDoingREST());


                responseMessageContext.setProperty(MessageContext.TRANSPORT_IN,
                    msgctx.getProperty(MessageContext.TRANSPORT_IN));
                responseMessageContext.setTransportIn(msgctx.getTransportIn());
                responseMessageContext.setTransportOut(msgctx.getTransportOut());


                // Options object reused above so soapAction needs to be removed so
                // that soapAction+wsa:Action on response don't conflict
                responseMessageContext.setSoapAction("");


                if (responseMessageContext.getEnvelope() == null) {
                    // If request is REST we assume the responseMessageContext is
                    // REST, so set the variable


                    SOAPEnvelope resenvelope =
                        TransportUtils.createSOAPMessage(responseMessageContext);


                    if (resenvelope != null) {
                        responseMessageContext.setEnvelope(resenvelope);
                        AxisEngine.receive(responseMessageContext);
                        if (responseMessageContext.getReplyTo() != null) {
                            sc.setTargetEPR(responseMessageContext.getReplyTo());
                        }
                    } else {
                        throw new AxisFault(
                                Messages.getMessage("blockingInvocationExpectsResponse"));
                    }

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            this.synCtx = synCtx;
        }


        public void run() {
            try {
                MessageContext msgCtx = ((Axis2MessageContext) synCtx).getAxis2MessageContext();
                Event<MessageContext> event = new Event(msgCtx);
                subscriptions = subscriptionManager.getMatchingSubscriptions(event);
            } catch (EventException e) {
                handleException("Matching subscriptions fetching error", e);
            }

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    public void setSourceXpath(SynapseXPath sourceXpath) {
        this.sourceXpath = sourceXpath;
    }


    public boolean match(Event<MessageContext> event) {
        MessageContext messageContext = event.getMessage();
        String evaluatedValue = null;
        try {
            OMElement topicNode = (OMElement) sourceXpath.selectSingleNode(
                    messageContext.getEnvelope());
            if (topicNode != null) {
                evaluatedValue = topicNode.getText();
            }
        } catch (JaxenException e) {
            handleException("Error creating topic xpath",e);

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     * Send a response back to a client of Synapse
     * @param smc the Synapse message context sent as the response
     */
    public static void sendBack(org.apache.synapse.MessageContext smc) {


        MessageContext messageContext = ((Axis2MessageContext) smc).getAxis2MessageContext();


        // if this is a dummy 202 Accepted message meant only for the http/s transports
        // prevent it from going into any other transport sender
        if (messageContext.isPropertyTrue(NhttpConstants.SC_ACCEPTED) &&
            messageContext.getTransportOut() != null &&
            !messageContext.getTransportOut().getName().startsWith(Constants.TRANSPORT_HTTP)) {
                return;
        }


        // fault processing code
        if (messageContext.isDoingREST() && messageContext.isFault()) {
            POXUtils.convertSOAPFaultToPOX(messageContext);
        }


        try {
            messageContext.setProperty(SynapseConstants.ISRESPONSE_PROPERTY, Boolean.TRUE);
            // check if addressing is already engaged for this message.
            // if engaged we should use the addressing enabled Configuration context.            


            if (AddressingHelper.isReplyRedirected(messageContext) &&
                    !messageContext.getReplyTo().hasNoneAddress()) {


                messageContext.setTo(messageContext.getReplyTo());
                messageContext.setReplyTo(null);
                messageContext.setWSAAction("");
                messageContext.setSoapAction("");
                messageContext.setProperty(
                        NhttpConstants.IGNORE_SC_ACCEPTED, Constants.VALUE_TRUE);
                messageContext.setProperty(
                        AddressingConstants.DISABLE_ADDRESSING_FOR_OUT_MESSAGES, Boolean.FALSE);
            }


            if (messageContext.getEnvelope().hasFault()
                    && AddressingHelper.isFaultRedirected(messageContext)
                    && !messageContext.getFaultTo().hasNoneAddress()) {


                messageContext.setTo(messageContext.getFaultTo());
                messageContext.setFaultTo(null);
                messageContext.setWSAAction("");
                messageContext.setSoapAction("");
                messageContext.setProperty(
                        NhttpConstants.IGNORE_SC_ACCEPTED, Constants.VALUE_TRUE);
                messageContext.setProperty(
                        AddressingConstants.DISABLE_ADDRESSING_FOR_OUT_MESSAGES, Boolean.FALSE);
            }


            String preserveAddressingProperty = (String) smc.getProperty(
                    SynapseConstants.PRESERVE_WS_ADDRESSING);
            if (preserveAddressingProperty != null &&
                    Boolean.parseBoolean(preserveAddressingProperty)) {
                 messageContext.setMessageID(smc.getMessageID());
             } else {
                 MessageHelper.removeAddressingHeaders(messageContext);
                 messageContext.setMessageID(UIDGenerator.generateURNString());
             }


            // determine weather we need to preserve the processed headers
            String preserveHeaderProperty = (String) smc.getProperty(
                            SynapseConstants.PRESERVE_PROCESSED_HEADERS);
            if (preserveHeaderProperty == null || !Boolean.parseBoolean(preserveHeaderProperty)) {
                // remove the processed headers
                MessageHelper.removeProcessedHeaders(messageContext,
                        (preserveAddressingProperty != null &&
                                Boolean.parseBoolean(preserveAddressingProperty)));
            }


            // temporary workaround for https://issues.apache.org/jira/browse/WSCOMMONS-197
            if (messageContext.isEngaged(SynapseConstants.SECURITY_MODULE_NAME) &&
                messageContext.getEnvelope().getHeader() == null) {
                SOAPFactory fac = messageContext.isSOAP11() ?
                    OMAbstractFactory.getSOAP11Factory() : OMAbstractFactory.getSOAP12Factory();
                fac.createSOAPHeader(messageContext.getEnvelope());
            }


            Axis2FlexibleMEPClient.clearSecurtityProperties(messageContext.getOptions());


           // report stats for any component at response sending check point
            StatisticsReporter.reportForAllOnResponseSent(smc);


            AxisEngine.send(messageContext);

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   }


    private static MessageContext cloneForSend(MessageContext ori, String preserveAddressing)
            throws AxisFault {


        MessageContext newMC = MessageHelper.clonePartially(ori);


        newMC.setEnvelope(ori.getEnvelope());
        if (preserveAddressing != null && Boolean.parseBoolean(preserveAddressing)) {
            newMC.setMessageID(ori.getMessageID());
        } else {
            MessageHelper.removeAddressingHeaders(newMC);
        }


        newMC.setProperty(org.apache.axis2.context.MessageContext.TRANSPORT_HEADERS,
            ori.getProperty(org.apache.axis2.context.MessageContext.TRANSPORT_HEADERS));


        return newMC;
    }

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