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Chapter 21. CXF

CXF Component

The cxf: component provides integration with Apache CXF for connecting to JAX-WS services hosted in CXF.
Maven users will need to add the following dependency to their pom.xml for this component:
    <!-- use the same version as your Camel core version -->
If you want to learn about CXF dependencies, see the WHICH-JARS text file.
When using CXF as a consumer, the CAMEL:CXF Bean Component allows you to factor out how message payloads are received from their processing as a RESTful or SOAP web service. This has the potential of using a multitude of transports to consume web services. The bean component's configuration is also simpler and provides the fastest method to implement web services using Camel and CXF.
When using CXF in streaming modes (see DataFormat option), then also read about Stream caching.

URI format

Where cxfEndpoint represents a bean ID that references a bean in the Spring bean registry. With this URI format, most of the endpoint details are specified in the bean definition.
Where someAddress specifies the CXF endpoint's address. With this URI format, most of the endpoint details are specified using options.
For either style above, you can append options to the URI as follows:


Name Required Description
wsdlURL No
The location of the WSDL. WSDL is obtained from endpoint address by default. For example:
file://local/wsdl/hello.wsdl or wsdl/hello.wsdl
serviceClass Yes
The name of the SEI (Service Endpoint Interface) class. This class can have, but does not require, JSR181 annotations.  Since 2.0, this option is only required by POJO mode. If the wsdlURL option is provided, serviceClass is not required for PAYLOAD and MESSAGE mode. When wsdlURL option is used without serviceClass, the serviceName and portName (endpointName for Spring configuration) options MUST be provided.
Since 2.0, it is possible to use # notation to reference a serviceClass object instance from the registry..
Please be advised that the referenced object cannot be a Proxy (Spring AOP Proxy is OK) as it relies on Object.getClass().getName() method for non Spring AOP Proxy.
Since 2.8, it is possible to omit both wsdlURL and serviceClass options for PAYLOAD and MESSAGE mode. When they are omitted, arbitrary XML elements can be put in CxfPayload's body in PAYLOAD mode to facilitate CXF Dispatch Mode.
For example: org.apache.camel.Hello
serviceName Only if more than one serviceName present in WSDL
The service name this service is implementing, it maps to the wsdl:service@name. For example:
portName Only if more than one portName under the serviceName is present, and it is required for camel-cxf consumer since camel 2.2
The port name this service is implementing, it maps to the wsdl:port@name. For example:
dataFormat No Which message data format the CXF endpoint supports. Possible values are: POJO (default), PAYLOAD, MESSAGE.
relayHeaders No Please see the Description ofrelayHeadersoption section for this option. Should a CXF endpoint relay headers along the route. Currently only available when dataFormat=POJODefault: trueExample: true, false
wrapped No Which kind of operation the CXF endpoint producer will invoke. Possible values are: true, false (default).
wrappedStyle No Since 2.5.0 The WSDL style that describes how parameters are represented in the SOAP body. If the value is false, CXF will chose the document-literal unwrapped style, If the value is true, CXF will chose the document-literal wrapped style
setDefaultBus No Specifies whether or not to use the default CXF bus for this endpoint. Possible values are: true, false (default).
bus No
Use # notation to reference a bus object from the registry—for example, bus=#busName. The referenced object must be an instance of org.apache.cxf.Bus.
By default, uses the default bus created by CXF Bus Factory.
cxfBinding No
Use # notation to reference a CXF binding object from the registry—for example, cxfBinding=#bindingName. The referenced object must be an instance of org.apache.camel.component.cxf.CxfBinding.
headerFilterStrategy No Use # notation to reference a header filter strategy object from the registry—for example, headerFilterStrategy=#strategyName. The referenced object must be an instance of org.apache.camel.spi.HeaderFilterStrategy.
loggingFeatureEnabled No New in 2.3, this option enables CXF Logging Feature which writes inbound and outbound SOAP messages to log. Possible values are: true, false (default).
defaultOperationName No
New in 2.4, this option will set the default operationName that will be used by the CxfProducer that invokes the remote service. For example:
defaultOperationNamespace No
New in 2.4, this option will set the default operationNamespace that will be used by the CxfProducer which invokes the remote service. For example:
synchronous No New in 2.5, this option will let CXF endpoint decide to use sync or async API to do the underlying work. The default value is false, which means camel-cxf endpoint will try to use async API by default.
publishedEndpointUrl No
New in 2.5, this option overrides the endpoint URL that appears in the published WSDL that is accessed using the service address URL plus ?wsdl. For example:
properties.propName No Camel 2.8: Allows you to set custom CXF properties in the endpoint URI. For example, setting properties.mtom-enabled=true to enable MTOM.
allowStreaming No New in 2.8.2. This option controls whether the CXF component, when running in PAYLOAD mode (see below), will DOM parse the incoming messages into DOM Elements or keep the payload as a javax.xml.transform.Source object that would allow streaming in some cases.
skipFaultLogging No New in 2.11. This option controls whether the PhaseInterceptorChain skips logging the Fault that it catches.
The serviceName and portName are QNames, so if you provide them be sure to prefix them with their {namespace} as shown in the examples above.

The descriptions of the dataformats

DataFormat Description
POJO POJOs (plain old Java objects) are the Java parameters to the method being invoked on the target server. Both Protocol and Logical JAX-WS handlers are supported.
PAYLOAD PAYLOAD is the message payload (the contents of the soap:body) after message configuration in the CXF endpoint is applied. Only Protocol JAX-WS handler is supported. Logical JAX-WS handler is not supported.
MESSAGE MESSAGE is the raw message that is received from the transport layer. It is not suppose to touch or change Stream, some of the CXF interceptor will be removed if you are using this kind of DataFormat so you can't see any soap headers after the camel-cxf consumer and JAX-WS handler is not supported.
CXF_MESSAGE New in Camel 2.8.2, CXF_MESSAGE allows for invoking the full capabilities of CXF interceptors by converting the message from the transport layer into a raw SOAP message
You can determine the data format mode of an exchange by retrieving the exchange property, CamelCXFDataFormat. The exchange key constant is defined in org.apache.camel.component.cxf.CxfConstants.DATA_FORMAT_PROPERTY.

Configuring the CXF Endpoints with Apache Aries Blueprint.

Since Camel 2.8, there is support for using Aries blueprint dependency injection for your CXF endpoints. The schema is very similar to the Spring schema, so the transition is fairly transparent.
For example:
 <blueprint xmlns=""
       <camel-cxf:cxfEndpoint id="routerEndpoint"
             <entry key="dataFormat" value="MESSAGE"/>
      <camel-cxf:cxfEndpoint id="serviceEndpoint"

    <camelContext xmlns="">
            <from uri="routerEndpoint"/>
            <to uri="log:request"/>


Currently the endpoint element is the first supported CXF namespacehandler.
You can also use the bean references just as in spring
<blueprint xmlns=""

    <camelcxf:cxfEndpoint id="reportIncident"

    <bean id="reportIncidentRoutes" class="org.apache.camel.example.reportincident.ReportIncidentRoutes" />

    <camelContext xmlns="">
        <routeBuilder ref="reportIncidentRoutes"/>


How to enable CXF's LoggingOutInterceptor in MESSAGE mode

CXF's LoggingOutInterceptor outputs outbound message that goes on the wire to logging system (java.util.logging). Since the LoggingOutInterceptor is in PRE_STREAM phase (but PRE_STREAM phase is removed in MESSAGE mode), you have to configure LoggingOutInterceptor to be run during the WRITE phase. The following is an example.
   <bean id="loggingOutInterceptor" class="org.apache.cxf.interceptor.LoggingOutInterceptor">
        <!--  it really should have been user-prestream but CXF does have such phase! -->
        <constructor-arg value="target/write"/> 
<cxf:cxfEndpoint id="serviceEndpoint" address="http://localhost:9002/helloworld"
	    <ref bean="loggingOutInterceptor"/>
		<entry key="dataFormat" value="MESSAGE"/>

Description of relayHeaders option

There are in-band and out-of-band on-the-wire headers from the perspective of a JAXWS WSDL-first developer.
The in-band headers are headers that are explicitly defined as part of the WSDL binding contract for an endpoint such as SOAP headers.
The out-of-band headers are headers that are serialized over the wire, but are not explicitly part of the WSDL binding contract.
Headers relaying/filtering is bi-directional.
When a route has a CXF endpoint and the developer needs to have on-the-wire headers, such as SOAP headers, be relayed along the route to be consumed say by another JAXWS endpoint, then relayHeaders should be set to true, which is the default value.

Available only in POJO mode

The relayHeaders=true setting expresses an intent to relay the headers. The actual decision on whether a given header is relayed is delegated to a pluggable instance that implements the MessageHeadersRelay interface. A concrete implementation of MessageHeadersRelay will be consulted to decide if a header needs to be relayed or not. There is already an implementation of SoapMessageHeadersRelay which binds itself to well-known SOAP name spaces. Currently only out-of-band headers are filtered, and in-band headers will always be relayed when relayHeaders=true. If there is a header on the wire, whose name space is unknown to the runtime, then a fall back DefaultMessageHeadersRelay will be used, which simply allows all headers to be relayed.
The relayHeaders=false setting asserts that all headers, in-band and out-of-band, will be dropped.
You can plugin your own MessageHeadersRelay implementations overriding or adding additional ones to the list of relays. In order to override a preloaded relay instance just make sure that your MessageHeadersRelay implementation services the same name spaces as the one you looking to override. Also note, that the overriding relay has to service all of the name spaces as the one you looking to override, or else a runtime exception on route start up will be thrown as this would introduce an ambiguity in name spaces to relay instance mappings.
<cxf:cxfEndpoint ...>
     <entry key="org.apache.camel.cxf.message.headers.relays">
         <ref bean="customHeadersRelay"/>
 <bean id="customHeadersRelay" class="org.apache.camel.component.cxf.soap.headers.CustomHeadersRelay"/>
Take a look at the tests that show how you'd be able to relay/drop headers here:

Changes since Release 2.0

  • POJO and PAYLOAD modes are supported. In POJO mode, only out-of-band message headers are available for filtering as the in-band headers have been processed and removed from the header list by CXF. The in-band headers are incorporated into the MessageContentList in POJO mode. The camel-cxf component does make any attempt to remove the in-band headers from the MessageContentList If filtering of in-band headers is required, please use PAYLOAD mode or plug in a (pretty straightforward) CXF interceptor/JAXWS Handler to the CXF endpoint.
  • The Message Header Relay mechanism has been merged into CxfHeaderFilterStrategy. The relayHeaders option, its semantics, and default value remain the same, but it is a property of CxfHeaderFilterStrategy. Here is an example of configuring it.
    <bean id="dropAllMessageHeadersStrategy" class="org.apache.camel.component.cxf.common.header.CxfHeaderFilterStrategy">
        <!--  Set relayHeaders to false to drop all SOAP headers -->
        <property name="relayHeaders" value="false"/>
    Then, your endpoint can reference the CxfHeaderFilterStrategy.
        <from uri="cxf:bean:routerNoRelayEndpoint?headerFilterStrategy=#dropAllMessageHeadersStrategy"/>          
        <to uri="cxf:bean:serviceNoRelayEndpoint?headerFilterStrategy=#dropAllMessageHeadersStrategy"/>
  • The MessageHeadersRelay interface has changed slightly and has been renamed to MessageHeaderFilter. It is a property of CxfHeaderFilterStrategy. Here is an example of configuring user defined Message Header Filters:
    <bean id="customMessageFilterStrategy" class="org.apache.camel.component.cxf.common.header.CxfHeaderFilterStrategy">
        <property name="messageHeaderFilters">
                <!--  SoapMessageHeaderFilter is the built in filter.  It can be removed by omitting it. -->
                <bean class="org.apache.camel.component.cxf.common.header.SoapMessageHeaderFilter"/>
                <!--  Add custom filter here -->    
                <bean class="org.apache.camel.component.cxf.soap.headers.CustomHeaderFilter"/>
  • Other than relayHeaders, there are new properties that can be configured in CxfHeaderFilterStrategy.
Name Description type Required? Default value
relayHeaders All message headers will be processed by Message Header Filters boolean No true (1.6.1 behavior)
relayAllMessageHeaders All message headers will be propagated (without processing by Message Header Filters) boolean No false (1.6.1 behavior)
allowFilterNamespaceClash If two filters overlap in activation namespace, the property control how it should be handled. If the value is true, last one wins. If the value is false, it will throw an exception boolean No false (1.6.1 behavior)

Configure the CXF endpoints with Spring

You can configure the CXF endpoint with the Spring configuration file shown below, and you can also embed the endpoint into the camelContext tags. When you are invoking the service endpoint, you can set the operationName and operationNamespace headers to explicitly state which operation you are calling.
NOTE In Camel 2.x we change to use as the CXF endpoint's target namespace.
<beans xmlns=""
        xsi:schemaLocation="     ">

In Apache Camel 2.x, the namespace was changed to
Be sure to include the JAX-WS schemaLocation attribute specified on the root beans element. This allows CXF to validate the file and is required. Also note the namespace declarations at the end of the <cxf:cxfEndpoint/> tag--these are required because the combined {namespace}localName syntax is presently not supported for this tag's attribute values.
The cxf:cxfEndpoint element supports many additional attributes:
Name Value
PortName The endpoint name this service is implementing, it maps to the wsdl:port@name. In the format of ns:PORT_NAME where ns is a namespace prefix valid at this scope.
serviceName The service name this service is implementing, it maps to the wsdl:service@name. In the format of ns:SERVICE_NAME where ns is a namespace prefix valid at this scope.
wsdlURL The location of the WSDL. Can be on the classpath, file system, or be hosted remotely.
bindingId The bindingId for the service model to use.
address The service publish address.
bus The bus name that will be used in the JAX-WS endpoint.
serviceClass The class name of the SEI (Service Endpoint Interface) class which could have JSR181 annotation or not.
It also supports many child elements:
Name Value
cxf:inInterceptors The incoming interceptors for this endpoint. A list of <bean> or <ref>.
cxf:inFaultInterceptors The incoming fault interceptors for this endpoint. A list of <bean> or <ref>.
cxf:outInterceptors The outgoing interceptors for this endpoint. A list of <bean> or <ref>.
cxf:outFaultInterceptors The outgoing fault interceptors for this endpoint. A list of <bean> or <ref>.
cxf:properties A properties map which should be supplied to the JAX-WS endpoint. See below.
cxf:handlers A JAX-WS handler list which should be supplied to the JAX-WS endpoint. See below.
cxf:dataBinding You can specify the which DataBinding will be use in the endpoint. This can be supplied using the Spring <bean class="MyDataBinding"/> syntax.
cxf:binding You can specify the BindingFactory for this endpoint to use. This can be supplied using the Spring <bean class="MyBindingFactory"/> syntax.
cxf:features The features that hold the interceptors for this endpoint. A list of <bean>s or <ref>s
cxf:schemaLocations The schema locations for endpoint to use. A list of <schemaLocation>s
cxf:serviceFactory The service factory for this endpoint to use. This can be supplied using the Spring <bean class="MyServiceFactory"/> syntax
You can find more advanced examples which show how to provide interceptors, properties and handlers here:
You can use CXF:properties to set the CXF endpoint's dataFormat and setDefaultBus properties from a Spring configuration file, as follows:
<cxf:cxfEndpoint id="testEndpoint" address="http://localhost:9000/router"
       <entry key="dataFormat" value="MESSAGE"/>
       <entry key="setDefaultBus" value="true"/>

How to make the camel-cxf component use log4j instead of java.util.logging

CXF's default logger is java.util.logging. If you want to change it to log4j, proceed as follows. Create a file, in the classpath, named META-INF/cxf/org.apache.cxf.logger. This file should contain the fully-qualified name of the class, org.apache.cxf.common.logging.Log4jLogger, with no comments, on a single line.

How to let camel-cxf response message with xml start document

If you are using some soap client such as PHP, you will get this kind of error, because CXF doesn't add the XML start document "<?xml version="1.0" encoding="utf-8"?>"
Error:sendSms: SoapFault exception: [Client] looks like we got no XML document in [...]
To resolved this issue, you just need to tell StaxOutInterceptor to write the XML start document for you.
public class WriteXmlDeclarationInterceptor extends AbstractPhaseInterceptor<SoapMessage> {
    public WriteXmlDeclarationInterceptor() {

    public void handleMessage(SoapMessage message) throws Fault {
        message.put("org.apache.cxf.stax.force-start-document", Boolean.TRUE);        

You can add a customer interceptor like this and configure it into you camel-cxf endpont
<cxf:cxfEndpoint id="routerEndpoint" address="http://localhost:${CXFTestSupport.port2}/CXFGreeterRouterTest/CamelContext/RouterPort"
         <!-- This interceptor will force the CXF server send the XML start document to client -->
         <bean class="org.apache.camel.component.cxf.WriteXmlDeclarationInterceptor"/>
         <!-- Set the publishedEndpointUrl which could override the service address from generated WSDL as you want -->
         <entry key="publishedEndpointUrl" value="" />
Or adding a message header for it like this if you are using Camel 2.4.
 // set up the response context which force start document
 Map<String, Object> map = new HashMap<String, Object>();
 map.put("org.apache.cxf.stax.force-start-document", Boolean.TRUE);
 exchange.getOut().setHeader(Client.RESPONSE_CONTEXT, map);

How to consume a message from a camel-cxf endpoint in POJO data format

The camel-cxf endpoint consumer POJO data format is based on the cxf invoker, so the message header has a property with the name of CxfConstants.OPERATION_NAME and the message body is a list of the SEI method parameters.
public class PersonProcessor implements Processor {

    private static final transient Logger LOG = LoggerFactory.getLogger(PersonProcessor.class);

    public void process(Exchange exchange) throws Exception {"processing exchange in camel");

        BindingOperationInfo boi = (BindingOperationInfo)exchange.getProperty(BindingOperationInfo.class.toString());
        if (boi != null) {
  "boi.isUnwrapped" + boi.isUnwrapped());
        // Get the parameters list which element is the holder.
        MessageContentsList msgList = (MessageContentsList)exchange.getIn().getBody();
        Holder<String> personId = (Holder<String>)msgList.get(0);
        Holder<String> ssn = (Holder<String>)msgList.get(1);
        Holder<String> name = (Holder<String>)msgList.get(2);

        if (personId.value == null || personId.value.length() == 0) {
  "person id 123, so throwing exception");
            // Try to throw out the soap fault message
            org.apache.camel.wsdl_first.types.UnknownPersonFault personFault =
                new org.apache.camel.wsdl_first.types.UnknownPersonFault();
            org.apache.camel.wsdl_first.UnknownPersonFault fault =
                new org.apache.camel.wsdl_first.UnknownPersonFault("Get the null value of person name", personFault);
            // Since camel has its own exception handler framework, we can't throw the exception to trigger it
            // We just set the fault message in the exchange for camel-cxf component handling and return

        name.value = "Bonjour";
        ssn.value = "123";"setting Bonjour as the response");
        // Set the response message, first element is the return value of the operation,
        // the others are the holders of method parameters
        exchange.getOut().setBody(new Object[] {null, personId, ssn, name});


How to prepare the message for the camel-cxf endpoint in POJO data format

The camel-cxf endpoint producer is based on the cxf client API. First you need to specify the operation name in the message header, then add the method parameters to a list, and initialize the message with this parameter list. The response message's body is a messageContentsList, you can get the result from that list.
If you want to get the object array from the message body, you can get the body using message.getbody(Object[].class), as follows:
Exchange senderExchange = new DefaultExchange(context, ExchangePattern.InOut);
final List<String> params = new ArrayList<String>();
// Prepare the request message for the camel-cxf procedure
senderExchange.getIn().setHeader(CxfConstants.OPERATION_NAME, ECHO_OPERATION);

Exchange exchange = template.send("direct:EndpointA", senderExchange);

org.apache.camel.Message out = exchange.getOut();
// The response message's body is an MessageContentsList which first element is the return value of the operation,
// If there are some holder parameters, the holder parameter will be filled in the reset of List.
// The result will be extract from the MessageContentsList with the String class type
MessageContentsList result = (MessageContentsList)out.getBody();"Received output text: " + result.get(0));
Map<String, Object> responseContext = CastUtils.cast((Map<?, ?>)out.getHeader(Client.RESPONSE_CONTEXT));
assertEquals("We should get the response context here", "UTF-8", responseContext.get(org.apache.cxf.message.Message.ENCODING));
assertEquals("Reply body on Camel is wrong", "echo " + TEST_MESSAGE, result.get(0));

How to deal with the message for a camel-cxf endpoint in PAYLOAD data format

In Apache Camel 2.0: CxfMessage.getBody() will return an org.apache.camel.component.cxf.CxfPayload object, which has getters for SOAP message headers and Body elements. This change enables decoupling the native CXF message from the Apache Camel message.
protected RouteBuilder createRouteBuilder() {
    return new RouteBuilder() {
        public void configure() {
            from(SIMPLE_ENDPOINT_URI + "&dataFormat=PAYLOAD").to("log:info").process(new Processor() {
                public void process(final Exchange exchange) throws Exception {                        
                    CxfPayload<SoapHeader> requestPayload = exchange.getIn().getBody(CxfPayload.class);
                    List<Source> inElements = requestPayload.getBodySources();
                    List<Source> outElements = new ArrayList<Source>();
                    // You can use a customer toStringConverter to turn a CxfPayLoad message into String as you want                        
                    String request = exchange.getIn().getBody(String.class);
                    XmlConverter converter = new XmlConverter();
                    String documentString = ECHO_RESPONSE;
                    Element in = new XmlConverter().toDOMElement(inElements.get(0));
                    // Just check the element namespace
                    if (!in.getNamespaceURI().equals(ELEMENT_NAMESPACE)) {
                        throw new IllegalArgumentException("Wrong element namespace");
                    if (in.getLocalName().equals("echoBoolean")) {
                        documentString = ECHO_BOOLEAN_RESPONSE;
                        checkRequest("ECHO_BOOLEAN_REQUEST", request);
                    } else {
                        documentString = ECHO_RESPONSE;
                        checkRequest("ECHO_REQUEST", request);
                    Document outDocument = converter.toDOMDocument(documentString);
                    outElements.add(new DOMSource(outDocument.getDocumentElement()));
                    // set the payload header with null
                    CxfPayload<SoapHeader> responsePayload = new CxfPayload<SoapHeader>(null, outElements, null);

How to get and set SOAP headers in POJO mode

POJO means that the data format is a list of Java objects when the CXF endpoint produces or consumes Camel exchanges. Even though Apache Camel exposes the message body as POJOs in this mode, the CXF component still provides access to read and write SOAP headers. However, since CXF interceptors remove in-band SOAP headers from the header list after they have been processed, only out-of-band SOAP headers are available in POJO mode.
The following example illustrates how to get/set SOAP headers. Suppose we have a route that forwards from one CXF endpoint to another. That is, SOAP Client -> Apache Camel -> CXF service. We can attach two processors to obtain/insert SOAP headers at (1) before request goes out to the CXF service and (2) before response comes back to the SOAP Client. Processor (1) and (2) in this example are InsertRequestOutHeaderProcessor and InsertResponseOutHeaderProcessor. Our route looks like this:
    <from uri="cxf:bean:routerRelayEndpointWithInsertion"/>
    <process ref="InsertRequestOutHeaderProcessor" />
    <to uri="cxf:bean:serviceRelayEndpointWithInsertion"/>
    <process ref="InsertResponseOutHeaderProcessor" />
In 2.x SOAP headers are propagated to and from Apache Camel Message headers. The Apache Camel message header name is org.apache.cxf.headers.Header.list, which is a constant defined in CXF (org.apache.cxf.headers.Header.HEADER_LIST). The header value is a List<> of CXF SoapHeader objects (org.apache.cxf.binding.soap.SoapHeader). The following snippet is the InsertResponseOutHeaderProcessor (that inserts a new SOAP header in the response message). The way to access SOAP headers in both InsertResponseOutHeaderProcessor and InsertRequestOutHeaderProcessor are actually the same. The only difference between the two processors is setting the direction of the inserted SOAP header.
public static class InsertResponseOutHeaderProcessor implements Processor {

    public void process(Exchange exchange) throws Exception {
        // You should be able to get the header if exchange is routed from camel-cxf endpoint
        List<SoapHeader> soapHeaders = CastUtils.cast((List<?>)exchange.getIn().getHeader(Header.HEADER_LIST));
        if (soapHeaders == null) {
            // we just create a new soap headers in case the header is null
            soapHeaders = new ArrayList<SoapHeader>();

        // Insert a new header
        String xml = "<?xml version=\"1.0\" encoding=\"utf-8\"?><outofbandHeader "
            + "xmlns=\"\" hdrAttribute=\"testHdrAttribute\" "
            + "xmlns:soap=\"\" soap:mustUnderstand=\"1\">"
            + "<name>New_testOobHeader</name><value>New_testOobHeaderValue</value></outofbandHeader>";
        SoapHeader newHeader = new SoapHeader(soapHeaders.get(0).getName(),
                       DOMUtils.readXml(new StringReader(xml)).getDocumentElement());
        // make sure direction is OUT since it is a response message.

How to get and set SOAP headers in PAYLOAD mode

We have already shown how to access SOAP message (CxfPayload object) in PAYLOAD mode (see the section called “How to deal with the message for a camel-cxf endpoint in PAYLOAD data format”).
Once you obtain a CxfPayload object, you can invoke the CxfPayload.getHeaders() method that returns a List of DOM Elements (SOAP headers).
from(getRouterEndpointURI()).process(new Processor() {
    public void process(Exchange exchange) throws Exception {
        CxfPayload<SoapHeader> payload = exchange.getIn().getBody(CxfPayload.class);
        List<Source> elements = payload.getBodySources();
        assertNotNull("We should get the elements here", elements);
        assertEquals("Get the wrong elements size", 1, elements.size());
        Element el = new XmlConverter().toDOMElement(elements.get(0));
        elements.set(0, new DOMSource(el));
        assertEquals("Get the wrong namespace URI", "", 
        List<SoapHeader> headers = payload.getHeaders();
        assertNotNull("We should get the headers here", headers);
        assertEquals("Get the wrong headers size", headers.size(), 1);
        assertEquals("Get the wrong namespace URI", 

SOAP headers are not available in MESSAGE mode

SOAP headers are not available in MESSAGE mode as SOAP processing is skipped.

How to throw a SOAP Fault from Apache Camel

If you are using a CXF endpoint to consume the SOAP request, you may need to throw the SOAP Fault from the camel context. Basically, you can use the throwFault DSL to do that; it works for POJO, PAYLOAD and MESSAGE data format. You can define the soap fault like this:
Element detail = SOAP_FAULT.getOrCreateDetail();
Document doc = detail.getOwnerDocument();
Text tn = doc.createTextNode(DETAIL_TEXT);
Then throw it as you like:
If your CXF endpoint is working in the MESSAGE data format, you could set the the SOAP Fault message in the message body and set the response code in the message header.
from(routerEndpointURI).process(new Processor() {

    public void process(Exchange exchange) throws Exception {
        Message out = exchange.getOut();
        // Set the message body with the 
        // Set the response code here
        out.setHeader(org.apache.cxf.message.Message.RESPONSE_CODE, new Integer(500));

The same is true for the POJO data format. You can set the SOAP Fault on the Out body and also indicate it's a fault by calling Message.setFault(true), as follows:
    .process(new Processor() {
        public void process(Exchange exchange) throws Exception {
            SoapFault fault = exchange
                .getProperty(Exchange.EXCEPTION_CAUGHT, SoapFault.class);


How to propagate a CXF endpoint's request and response context

cxf client API provides a way to invoke the operation with request and response context. If you are using a CXF endpoint producer to invoke the external Web service, you can set the request context and get the response context with the following code:
        CxfExchange exchange = (CxfExchange)template.send(getJaxwsEndpointUri(), new Processor() {
             public void process(final Exchange exchange) {
                 final List<String> params = new ArrayList<String>();
                 // Set the request context to the inMessage
                 Map<String, Object> requestContext = new HashMap<String, Object>();
                 requestContext.put(BindingProvider.ENDPOINT_ADDRESS_PROPERTY, JAXWS_SERVER_ADDRESS);
                 exchange.getIn().setHeader(Client.REQUEST_CONTEXT , requestContext);
                 exchange.getIn().setHeader(CxfConstants.OPERATION_NAME, GREET_ME_OPERATION);
         org.apache.camel.Message out = exchange.getOut();
         // The output is an object array, the first element of the array is the return value
         Object\[\] output = out.getBody(Object\[\].class);"Received output text: " + output\[0\]);
         // Get the response context form outMessage
         Map<String, Object> responseContext = CastUtils.cast((Map)out.getHeader(Client.RESPONSE_CONTEXT));
         assertEquals("Get the wrong wsdl opertion name", "{}greetMe",

Attachment Support

POJO Mode: Both SOAP with Attachment and MTOM are supported (see example in Payload Mode for enabling MTOM). However, SOAP with Attachment is not tested. Since attachments are marshalled and unmarshalled into POJOs, users typically do not need to deal with the attachment themself. Attachments are propagated to Camel message's attachments since 2.1. So, it is possible to retreive attachments by Camel Message API
DataHandler Message.getAttachment(String id)
Payload Mode: MTOM is supported since 2.1. Attachments can be retrieved by Camel Message APIs mentioned above. SOAP with Attachment is not supported as there is no SOAP processing in this mode.
To enable MTOM, set the CXF endpoint property "mtom_enabled" to true. (I believe you can only do it with Spring.)
<cxf:cxfEndpoint id="routerEndpoint" address="http://localhost:${CXFTestSupport.port1}/CxfMtomRouterPayloadModeTest/jaxws-mtom/hello"

         <!--  enable mtom by setting this property to true -->
         <entry key="mtom-enabled" value="true"/>
         <!--  set the camel-cxf endpoint data fromat to PAYLOAD mode -->
         <entry key="dataFormat" value="PAYLOAD"/>
You can produce a Camel message with attachment to send to a CXF endpoint in Payload mode.
Exchange exchange = context.createProducerTemplate().send("direct:testEndpoint", new Processor() {

    public void process(Exchange exchange) throws Exception {
        List&lt;Source> elements = new ArrayList&lt;Source>();
        elements.add(new DOMSource(DOMUtils.readXml(new StringReader(MtomTestHelper.REQ_MESSAGE)).getDocumentElement()));
        CxfPayload<SoapHeader> body = new CxfPayload<SoapHeader>(new ArrayList<SoapHeader>(),
            elements, null);
            new DataHandler(new ByteArrayDataSource(MtomTestHelper.REQ_PHOTO_DATA, "application/octet-stream")));

            new DataHandler(new ByteArrayDataSource(MtomTestHelper.requestJpeg, "image/jpeg")));


// process response 

CxfPayload<SoapHeader> out = exchange.getOut().getBody(CxfPayload.class);
Assert.assertEquals(1, out.getBody().size());

Map<String, String> ns = new HashMap<String, String>();
ns.put("ns", MtomTestHelper.SERVICE_TYPES_NS);
ns.put("xop", MtomTestHelper.XOP_NS);

XPathUtils xu = new XPathUtils(ns);
Element oute = new XmlConverter().toDOMElement(out.getBody().get(0));
Element ele = (Element)xu.getValue("//ns:DetailResponse/ns:photo/xop:Include", oute,
String photoId = ele.getAttribute("href").substring(4); // skip "cid:"

ele = (Element)xu.getValue("//ns:DetailResponse/ns:image/xop:Include", oute,
String imageId = ele.getAttribute("href").substring(4); // skip "cid:"

DataHandler dr = exchange.getOut().getAttachment(photoId);
Assert.assertEquals("application/octet-stream", dr.getContentType());
MtomTestHelper.assertEquals(MtomTestHelper.RESP_PHOTO_DATA, IOUtils.readBytesFromStream(dr.getInputStream()));
dr = exchange.getOut().getAttachment(imageId);
Assert.assertEquals("image/jpeg", dr.getContentType());

BufferedImage image =;
Assert.assertEquals(560, image.getWidth());
Assert.assertEquals(300, image.getHeight());
You can also consume a Camel message received from a CXF endpoint in Payload mode.
public static class MyProcessor implements Processor {

    public void process(Exchange exchange) throws Exception {
        CxfPayload<SoapHeader> in = exchange.getIn().getBody(CxfPayload.class);
        // verify request
        assertEquals(1, in.getBody().size());
        Map<String, String> ns = new HashMap<String, String>();
        ns.put("ns", MtomTestHelper.SERVICE_TYPES_NS);
        ns.put("xop", MtomTestHelper.XOP_NS);

        XPathUtils xu = new XPathUtils(ns);
        Element body = new XmlConverter().toDOMElement(in.getBody().get(0));
        Element ele = (Element)xu.getValue("//ns:Detail/ns:photo/xop:Include", body,
        String photoId = ele.getAttribute("href").substring(4); // skip "cid:"
        assertEquals(MtomTestHelper.REQ_PHOTO_CID, photoId);
        ele = (Element)xu.getValue("//ns:Detail/ns:image/xop:Include", body,
        String imageId = ele.getAttribute("href").substring(4); // skip "cid:"
        assertEquals(MtomTestHelper.REQ_IMAGE_CID, imageId);

        DataHandler dr = exchange.getIn().getAttachment(photoId);
        assertEquals("application/octet-stream", dr.getContentType());
        MtomTestHelper.assertEquals(MtomTestHelper.REQ_PHOTO_DATA, IOUtils.readBytesFromStream(dr.getInputStream()));
        dr = exchange.getIn().getAttachment(imageId);
        assertEquals("image/jpeg", dr.getContentType());
        MtomTestHelper.assertEquals(MtomTestHelper.requestJpeg, IOUtils.readBytesFromStream(dr.getInputStream()));

        // create response
        List&lt;Source> elements = new ArrayList&lt;Source>();
        elements.add(new DOMSource(DOMUtils.readXml(new StringReader(MtomTestHelper.RESP_MESSAGE)).getDocumentElement()));
        CxfPayload&lt;SoapHeader> sbody = new CxfPayload&lt;SoapHeader>(new ArrayList&lt;SoapHeader>(),
            elements, null);
            new DataHandler(new ByteArrayDataSource(MtomTestHelper.RESP_PHOTO_DATA, "application/octet-stream")));

            new DataHandler(new ByteArrayDataSource(MtomTestHelper.responseJpeg, "image/jpeg")));

Message Mode: Attachments are not supported as it does not process the message at all.

How to propagate stack trace information

It is possible to configure a CXF endpoint so that, when a Java exception is thrown on the server side, the stack trace for the exception is marshalled into a fault message and returned to the client. To enable this feaure, set the dataFormat to PAYLOAD and set the faultStackTraceEnabled property to true in the cxfEndpoint element, as follows:
<cxf:cxfEndpoint id="router" address="http://localhost:9002/TestMessage"
    <!-- enable sending the stack trace back to client; the default value is false-->
    <entry key="faultStackTraceEnabled" value="true" />
    <entry key="dataFormat" value="PAYLOAD" />
For security reasons, the stack trace does not include the causing exception (that is, the part of a stack trace that follows Caused by). If you want to include the causing exception in the stack trace, set the exceptionMessageCauseEnabled property to true in the cxfEndpoint element, as follows:
<cxf:cxfEndpoint id="router" address="http://localhost:9002/TestMessage"
    <!-- enable to show the cause exception message and the default value is false -->
 <entry key="exceptionMessageCauseEnabled" value="true" />
    <!-- enable to send the stack trace back to client,  the default value is false-->
    <entry key="faultStackTraceEnabled" value="true" />
    <entry key="dataFormat" value="PAYLOAD" />
You should only enable the exceptionMessageCauseEnabled flag for testing and diagnostic purposes. It is normal practice for servers to conceal the original cause of an exception to make it harder for hostile users to probe the server.

Streaming Support in PAYLOAD mode

In 2.8.2, the camel-cxf component now supports streaming of incoming messages when using PAYLOAD mode. Previously, the incoming messages would have been completely DOM parsed. For large messages, this is time consuming and uses a significant amount of memory. Starting in 2.8.2, the incoming messages can remain as a javax.xml.transform.Source while being routed and, if nothing modifies the payload, can then be directly streamed out to the target destination. For common "simple proxy" use cases (example: from("cxf:...").to("cxf:...")), this can provide very significant performance increases as well as significantly lowered memory requirements.
However, there are cases where streaming may not be appropriate or desired. Due to the streaming nature, invalid incoming XML may not be caught until later in the processing chain. Also, certain actions may require the message to be DOM parsed anyway (like WS-Security or message tracing and such) in which case the advantages of the streaming is limited. At this point, there are two ways to control the streaming:
  • Endpoint property: you can add "allowStreaming=false" as an endpoint property to turn the streaming on/off.
  • Component property: the CxfComponent object also has an allowStreaming property that can set the default for endpoints created from that component.
  • Global system property: you can add a system property of "org.apache.camel.component.cxf.streaming" to "false" to turn if off. That sets the global default, but setting the endpoint property above will override this value for that endpoint.