CXF

JVM since2.12.0 Native since2.12.0

Expose SOAP WebServices using Apache CXF or connect to external WebServices using CXF WS client.

What’s inside

Please refer to the above link for usage and configuration details.

Maven coordinates

Or add the coordinates to your existing project:

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-cxf-soap</artifactId>
</dependency>

Check the User guide for more information about writing Camel Quarkus applications.

Usage

General

camel-quarkus-cxf-soap uses extensions from the CXF Extensions for Quarkus project - quarkus-cxf. This means the set of supported use cases and WS specifications is largely given by quarkus-cxf.

To learn about supported use cases and WS specifications, see the Quarkus CXF Reference.

Dependency management

The CXF and quarkus-cxf versions are managed by Camel Quarkus. You do not need select compatible versions for those projects.

Client

With camel-quarkus-cxf-soap (no additional dependencies required), you can use CXF clients as producers in Camel routes:

import org.apache.camel.builder.RouteBuilder;
import {javaxOrJakartaPackagePrefix}.enterprise.context.ApplicationScoped;
import {javaxOrJakartaPackagePrefix}.enterprise.context.SessionScoped;
import {javaxOrJakartaPackagePrefix}.enterprise.inject.Produces;
import {javaxOrJakartaPackagePrefix}.inject.Named;

@ApplicationScoped
public class CxfSoapClientRoutes extends RouteBuilder {

    @Override
    public void configure() {

        /* You can either configure the client inline */
        from("direct:cxfUriParamsClient")
                .to("cxf://http://localhost:8082/calculator-ws?wsdlURL=wsdl/CalculatorService.wsdl&dataFormat=POJO&serviceClass=org.foo.CalculatorService");

        /* Or you can use a named bean produced below by beanClient() method */
        from("direct:cxfBeanClient")
                .to("cxf:bean:beanClient?dataFormat=POJO");

    }

    @Produces
    @SessionScoped
    @Named
    CxfEndpoint beanClient() {
        final CxfEndpoint result = new CxfEndpoint();
        result.setServiceClass(CalculatorService.class);
        result.setAddress("http://localhost:8082/calculator-ws");
        result.setWsdlURL("wsdl/CalculatorService.wsdl"); // a resource in the class path
        return result;
    }
}

The CalculatorService may look like the following:

import {javaxOrJakartaPackagePrefix}.jws.WebMethod;
import {javaxOrJakartaPackagePrefix}.jws.WebService;

@WebService(targetNamespace = CalculatorService.TARGET_NS) (1)
public interface CalculatorService {

    public static final String TARGET_NS = "http://acme.org/wscalculator/Calculator";

    @WebMethod (1)
    public int add(int intA, int intB);

    @WebMethod (1)
    public int subtract(int intA, int intB);

    @WebMethod (1)
    public int divide(int intA, int intB);

    @WebMethod (1)
    public int multiply(int intA, int intB);
}
1 NOTE: JAX-WS annotations are required. The Simple CXF Frontend is not supported. Complex parameter types require JAXB annotations to work in properly in native mode.

You can test this client application against the quay.io/l2x6/calculator-ws:1.2 container that implements this service endpoint interface:

$ docker run -p 8082:8080 quay.io/l2x6/calculator-ws:1.2
quarkus-cxf supports injecting SOAP clients using @io.quarkiverse.cxf.annotation.CXFClient annotation. Refer to the SOAP Clients chapter of quarkus-cxf user guide for more details.

Server

With camel-quarkus-cxf-soap, you can expose SOAP endpoints as consumers in Camel routes. No additional dependencies are required for this use case.

import org.apache.camel.builder.RouteBuilder;
import {javaxOrJakartaPackagePrefix}.enterprise.context.ApplicationScoped;
import {javaxOrJakartaPackagePrefix}.enterprise.inject.Produces;
import {javaxOrJakartaPackagePrefix}.inject.Named;

@ApplicationScoped
public class CxfSoapRoutes extends RouteBuilder {

    @Override
    public void configure() {
        /* A CXF Service configured through a CDI bean */
        from("cxf:bean:helloBeanEndpoint")
                .setBody().simple("Hello ${body} from CXF service");

        /* A CXF Service configured through Camel URI parameters */
        from("cxf:///hello-inline?wsdlURL=wsdl/HelloService.wsdl&serviceClass=org.foo.HelloService")
                        .setBody().simple("Hello ${body} from CXF service");
    }

    @Produces
    @ApplicationScoped
    @Named
    CxfEndpoint helloBeanEndpoint() {
        final CxfEndpoint result = new CxfEndpoint();
        result.setServiceClass(HelloService.class);
        result.setAddress("/hello-bean");
        result.setWsdlURL("wsdl/HelloService.wsdl");
        return result;
    }
}

The path under which these two services will be served depends on the value of quarkus.cxf.path configuration property which can for example be set in application.properties:

application.properties
quarkus.cxf.path = /soap-services

With this configuration in place, our two services can be reached under http://localhost:8080/soap-services/hello-bean and http://localhost:8080/soap-services/hello-inline respectively.

The WSDL can be accessed by adding ?wsdl to the above URLs.

Do not use quarkus.cxf.path = / in your application unless you are 100% sure that no other extension will want to expose HTTP endpoints.

Before quarkus-cxf 2.0.0 (i.e. before Camel Quarkus 3.0.0), the default value of quarkus.cxf.path was /. The default was changed because it prevented other Quarkus extensions from exposing any further HTTP endpoints. Among others, RESTEasy, Vert.x, SmallRye Health (no health endpoints exposed!) were impacted by this.

quarkus-cxf supports alternative ways of exposing SOAP endpoints. Refer to the SOAP Services chapter of quarkus-cxf user guide for more details.

Logging of requests and responses

You can enable verbose logging of SOAP messages for both clients and servers with org.apache.cxf.ext.logging.LoggingFeature:

import org.apache.camel.builder.RouteBuilder;
import org.apache.cxf.ext.logging.LoggingFeature;
import {javaxOrJakartaPackagePrefix}.enterprise.context.ApplicationScoped;
import {javaxOrJakartaPackagePrefix}.enterprise.context.SessionScoped;
import {javaxOrJakartaPackagePrefix}.enterprise.inject.Produces;
import {javaxOrJakartaPackagePrefix}.inject.Named;

@ApplicationScoped
public class MyBeans {

    @Produces
    @ApplicationScoped
    @Named("prettyLoggingFeature")
    public LoggingFeature prettyLoggingFeature() {
        final LoggingFeature result = new LoggingFeature();
        result.setPrettyLogging(true);
        return result;
    }

    @Inject
    @Named("prettyLoggingFeature")
    LoggingFeature prettyLoggingFeature;

    @Produces
    @SessionScoped
    @Named
    CxfEndpoint cxfBeanClient() {
        final CxfEndpoint result = new CxfEndpoint();
        result.setServiceClass(CalculatorService.class);
        result.setAddress("https://acme.org/calculator");
        result.setWsdlURL("wsdl/CalculatorService.wsdl");
        result.getFeatures().add(prettyLoggingFeature);
        return result;
    }

    @Produces
    @ApplicationScoped
    @Named
    CxfEndpoint helloBeanEndpoint() {
        final CxfEndpoint result = new CxfEndpoint();
        result.setServiceClass(HelloService.class);
        result.setAddress("/hello-bean");
        result.setWsdlURL("wsdl/HelloService.wsdl");
        result.getFeatures().add(prettyLoggingFeature);
        return result;
    }
}
The support for org.apache.cxf.ext.logging.LoggingFeature is provided by io.quarkiverse.cxf:quarkus-cxf-rt-features-logging as a camel-quarkus-cxf-soap dependency. You do not need to add it explicitly to your application.

WS Specifications

The extent of supported WS specifications is given by the Quarkus CXF project.

camel-quarkus-cxf-soap covers the following specifications via the io.quarkiverse.cxf:quarkus-cxf extension:

  • JAX-WS

  • JAXB

  • WS-Addressing

  • WS-Policy

  • MTOM

If your application requires some other WS specification, you must add an additional Quarkus CXF dependency covering it. Refer to Quarkus CXF Reference page to see which WS specifications are covered by which Quarkus CXF extensions.

Both Camel Quarkus and Quarkus CXF contain a number of integration tests which can serve as executable examples of applications that implement various WS specifications.

Tooling

quarkus-cxf wraps the following two CXF tools:

For wsdl2Java to work properly, your application will have to directly depend on io.quarkiverse.cxf:quarkus-cxf.

While wsdlvalidator is not supported, you can use wsdl2Java with the following configuration in application.properties to validate your WSDLs:

application.properties
quarkus.cxf.codegen.wsdl2java.additional-params = -validate