private void invokeNextFaultHandler(MessageContext synCtx) {
Stack faultStack = synCtx.getFaultStack();
if (!faultStack.isEmpty()) {
Object faultHandler = faultStack.pop();
if (faultHandler instanceof Endpoint) {
// This is the parent . need to inform parent with fault child
((Endpoint) faultHandler).onChildEndpointFail(this, synCtx);
} else if (faultHandler instanceof MediatorFaultHandler) {
if (!executeLastSequenceFaultHandler(synCtx)) {
((FaultHandler) faultHandler).handleFault(synCtx);
}
} else {
((FaultHandler) faultHandler).handleFault(synCtx);
}
} else {
executeLastSequenceFaultHandler(synCtx);
}
}
/**
* If LAST_SEQ_FAULT_HANDLER property is not null, this method will execute the sequence specified
* by it.
*
* @param synCtx message context
* @return true if LAST_SEQ_FAULT_HANDLER get executed.
*/
private boolean executeLastSequenceFaultHandler(MessageContext synCtx) {
Object errorCode = synCtx.getProperty(SynapseConstants.ERROR_CODE);
Object lastSequenceFaultHandler = synCtx.getProperty(SynapseConstants.LAST_SEQ_FAULT_HANDLER);
if (lastSequenceFaultHandler != null
&& errorCode != null
&& errorCode instanceof Integer
&& (((Integer) errorCode) == SynapseConstants.NHTTP_CONNECTION_FAILED)) {
((FaultHandler) lastSequenceFaultHandler).handleFault(synCtx, null);
return true;
} else {
return false;
}
}
/**
* 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());
}
}
}
}