public CxfConsumer(final CxfEndpoint endpoint, Processor processor) throws Exception {
super(endpoint, processor);
// create server
ServerFactoryBean svrBean = endpoint.createServerFactoryBean();
svrBean.setInvoker(new Invoker() {
// we receive a CXF request when this method is called
public Object invoke(Exchange cxfExchange, Object o) {
LOG.trace("Received CXF Request: {}", cxfExchange);
Continuation continuation;
if (!endpoint.isSynchronous() && isAsyncInvocationSupported(cxfExchange)
&& (continuation = getContinuation(cxfExchange)) != null) {
LOG.trace("Calling the Camel async processors.");
return asyncInvoke(cxfExchange, continuation);
} else {
LOG.trace("Calling the Camel sync processors.");
return syncInvoke(cxfExchange);
}
}
// NOTE this code cannot work with CXF 2.2.x and JMSContinuation
// as it doesn't break out the interceptor chain when we call it
private Object asyncInvoke(Exchange cxfExchange, final Continuation continuation) {
synchronized (continuation) {
if (continuation.isNew()) {
final org.apache.camel.Exchange camelExchange = prepareCamelExchange(cxfExchange);
// Now we don't set up the timeout value
LOG.trace("Suspending continuation of exchangeId: {}", camelExchange.getExchangeId());
// TODO Support to set the timeout in case the Camel can't send the response back on time.
// The continuation could be called before the suspend is called
continuation.suspend(0);
// use the asynchronous API to process the exchange
getAsyncProcessor().process(camelExchange, new AsyncCallback() {
public void done(boolean doneSync) {
// make sure the continuation resume will not be called before the suspend method in other thread
synchronized (continuation) {
LOG.trace("Resuming continuation of exchangeId: {}", camelExchange.getExchangeId());
// resume processing after both, sync and async callbacks
continuation.setObject(camelExchange);
continuation.resume();
}
}
});
} else if (continuation.isResumed()) {
org.apache.camel.Exchange camelExchange = (org.apache.camel.Exchange)continuation.getObject();
try {
setResponseBack(cxfExchange, camelExchange);
} finally {
CxfConsumer.this.doneUoW(camelExchange);
}
}
}
return null;
}
private Continuation getContinuation(Exchange cxfExchange) {
ContinuationProvider provider =
(ContinuationProvider)cxfExchange.getInMessage().get(ContinuationProvider.class.getName());
Continuation continuation = provider == null ? null : provider.getContinuation();
// Make sure we don't return the JMSContinuation, as it doesn't support the Continuation we wants
// Don't want to introduce the dependency of cxf-rt-transprot-jms here
if (continuation != null && continuation.getClass().getName().equals("org.apache.cxf.transport.jms.continuations.JMSContinuation")) {
return null;
} else {
return continuation;
}
}
private Object syncInvoke(Exchange cxfExchange) {
org.apache.camel.Exchange camelExchange = prepareCamelExchange(cxfExchange);
try {
try {
LOG.trace("Processing +++ START +++");
// send Camel exchange to the target processor
getProcessor().process(camelExchange);
} catch (Exception e) {
throw new Fault(e);
}
LOG.trace("Processing +++ END +++");
setResponseBack(cxfExchange, camelExchange);
} finally {
doneUoW(camelExchange);
}
// response should have been set in outMessage's content
return null;
}
private org.apache.camel.Exchange prepareCamelExchange(Exchange cxfExchange) {
// get CXF binding
CxfEndpoint endpoint = (CxfEndpoint)getEndpoint();
CxfBinding binding = endpoint.getCxfBinding();
// create a Camel exchange, the default MEP is InOut
org.apache.camel.Exchange camelExchange = endpoint.createExchange();
DataFormat dataFormat = endpoint.getDataFormat();
BindingOperationInfo boi = cxfExchange.getBindingOperationInfo();
// make sure the "boi" is remained as wrapped in PAYLOAD mode
if (boi != null && dataFormat == DataFormat.PAYLOAD && boi.isUnwrapped()) {
boi = boi.getWrappedOperation();
cxfExchange.put(BindingOperationInfo.class, boi);
}
if (boi != null) {
camelExchange.setProperty(BindingOperationInfo.class.getName(), boi);
LOG.trace("Set exchange property: BindingOperationInfo: {}", boi);
// set the message exchange patter with the boi
if (boi.getOperationInfo().isOneWay()) {
camelExchange.setPattern(ExchangePattern.InOnly);
}
}
// set data format mode in Camel exchange
camelExchange.setProperty(CxfConstants.DATA_FORMAT_PROPERTY, dataFormat);
LOG.trace("Set Exchange property: {}={}", DataFormat.class.getName(), dataFormat);
camelExchange.setProperty(Message.MTOM_ENABLED, String.valueOf(endpoint.isMtomEnabled()));
if (endpoint.getMergeProtocolHeaders()) {
camelExchange.setProperty(CxfConstants.CAMEL_CXF_PROTOCOL_HEADERS_MERGED, Boolean.TRUE);
}
// bind the CXF request into a Camel exchange
binding.populateExchangeFromCxfRequest(cxfExchange, camelExchange);
// extract the javax.xml.ws header
Map<String, Object> context = new HashMap<String, Object>();
binding.extractJaxWsContext(cxfExchange, context);
// put the context into camelExchange
camelExchange.setProperty(CxfConstants.JAXWS_CONTEXT, context);
// we want to handle the UoW
try {
CxfConsumer.this.createUoW(camelExchange);
} catch (Exception e) {
log.error("Error processing request", e);
throw new Fault(e);
}
return camelExchange;
}
@SuppressWarnings("unchecked")
private void setResponseBack(Exchange cxfExchange, org.apache.camel.Exchange camelExchange) {
CxfEndpoint endpoint = (CxfEndpoint)getEndpoint();
CxfBinding binding = endpoint.getCxfBinding();
checkFailure(camelExchange, cxfExchange);
binding.populateCxfResponseFromExchange(camelExchange, cxfExchange);
// check failure again as fault could be discovered by converter
checkFailure(camelExchange, cxfExchange);
// copy the headers javax.xml.ws header back
binding.copyJaxWsContext(cxfExchange, (Map<String, Object>)camelExchange.getProperty(CxfConstants.JAXWS_CONTEXT));
}
private void checkFailure(org.apache.camel.Exchange camelExchange, Exchange cxfExchange) throws Fault {
final Throwable t;
if (camelExchange.isFailed()) {
t = (camelExchange.hasOut() && camelExchange.getOut().isFault()) ? camelExchange.getOut()
.getBody(Throwable.class) : camelExchange.getException();
cxfExchange.getInMessage().put(FaultMode.class, FaultMode.UNCHECKED_APPLICATION_FAULT);
if (t instanceof Fault) {
cxfExchange.getInMessage().put(FaultMode.class, FaultMode.CHECKED_APPLICATION_FAULT);
throw (Fault)t;
} else if (t != null) {
// This is not a CXF Fault. Build the CXF Fault manually.
Fault fault = new Fault(t);
if (fault.getMessage() == null) {
// The Fault has no Message. This is the case if it has
// no message, for example was a NullPointerException.
fault.setMessage(t.getClass().getSimpleName());
}
WebFault faultAnnotation = t.getClass().getAnnotation(WebFault.class);
Object faultInfo = null;
try {
Method method = t.getClass().getMethod("getFaultInfo");
faultInfo = method.invoke(t, new Object[0]);
} catch (Exception e) {
// do nothing here
}
if (faultAnnotation != null && faultInfo == null) {
// t has a JAX-WS WebFault annotation, which describes
// in detail the Web Service Fault that should be thrown. Add the
// detail.
Element detail = fault.getOrCreateDetail();
Element faultDetails = detail.getOwnerDocument()
.createElementNS(faultAnnotation.targetNamespace(), faultAnnotation.name());
detail.appendChild(faultDetails);
}
throw fault;
}
}
}
});
server = svrBean.create();
if (ObjectHelper.isNotEmpty(endpoint.getPublishedEndpointUrl())) {
server.getEndpoint().getEndpointInfo().setProperty("publishedEndpointUrl", endpoint.getPublishedEndpointUrl());
}
}