Dropwizard Jakarta XML Web Services

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🥝 This README will be updated as we transition from the original dropwizard-jaxws to this repository. 🥝

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Introduction

Dropwizard Jakarta XML Web Services is a Dropwizard Bundle that enables building SOAP web services and clients using Jakarta XML Web Services with Dropwizard.

Features

• Uses Apache CXF web services framework (no Spring Framework dependency).
• Java-first and WSDL-first service development.
• Use standard Jakarta XML Web Services annotations without custom deployment descriptors.
• Metrics instrumentation: @Metered, @Timed and @ExceptionMetered annotations.
• Dropwizard validation support.
• Dropwizard Hibernate support (@UnitOfWork).
• Dropwizard basic authentication using Dropwizard Authenticator.
• Web service client factory.
• Support for Jakarta XML Web Services handlers, MTOM, CXF interceptors (both client and server side) and CXF @UseAsyncMethod annotation.

Background

This library was imported from roskart/dropwizard-jaxws, which as of November 2023 seems to be no longer maintained by the original creator.

Since we are still using this library in our REST web services that use Dropwizard and Jakarta XML Web Services, we decided to import the original repository and continue maintaining it for our own use. And of course, anyone else who might want to use it.

We make no guarantees whatsoever about how long we will maintain it, and also plan to make our own changes such as changing the base package name to org.kiwiproject to be consistent with our other libraries.

All other kiwiproject projects are MIT-licensed. However, because the original dropwizard-jaxws uses the Apache 2.0 license, we are keeping the Apache 2.0 license (otherwise to switch to MIT we would have to gain consent of all contributors, which we do not want to do. And, we probably can't since the original author has not been active since October 2022).

Another thing to note is that we imported this repository from the original, so that it is a "disconnected fork." We did not want a reference to the original repository since it seems no longer maintained and so no changes here will ever be pushed back upstream. Thus, while we maintain the history that this is a fork, it is completely disconnected and is now a standalone (normal) repository.

Migrating from roskart/dropwizard-jaxws

There are two things you need to do to migrate. First, change the Maven coordinates so that the groupId is org.kiwiproject, the artifactId is dropwizard-jakarta-xml-ws, and choose the latest version.

Second, when we imported this repository, we updated it from the Dropwizard 2.x and JAX-WS to Dropwizard 4.x and Jakarta XML Web Services, which means that all the package names have changed from javax to jakarta. This means you will need to change dependencies to Jakarta XML Web Services.

For the initial 0.5.0 version, we will retain the original package names (com.roskart.dropwizard.jaxws).

Release 0.6.0 will remove deprecated code, i.e., the deprecated methods in JAXWSBundle. It will also rename the modules so that they are consistent, i.e., rename dropwizard-jaxws to dropwizard-jakarta-xml-ws. Finally, 0.6.0 comments out the Maven Shade plugin in the POM of dropwizard-jakarta-xml-ws-example so that the JAR deployed to Maven Central is small (a few KB instead of the 40+ MB uber-jar).

Release 0.7.0 has multiple breaking API changes. First, it renames the packages to org.kiwiproject.dropwizard.jakarta.xml.ws (which matches the actual Jakarta packages which begin with jakarta.xml.ws). Release 0.7.0 also renames the bundle and environment classes to start with JakartaXmlWs instead of JAXWS, so they become JakartaXmlWsBundle and JakartaXmlWsEnvironment respectively. Finally, it renames the application and configuration classes in the example application to JakartaXmlWsExampleApplication and JakartaXmlWsExampleConfiguration respectively.

We may, in a future release, extract the example application into a separate repository which will not be deployed to Maven Central, as the original repository did.

Using

To use dropwizard-jakarta-xml-ws in your project, add the following dependency to your pom.xml:

<dependency>
    <groupId>org.kiwiproject</groupId>
    <artifactId>dropwizard-jakarta-xml-ws</artifactId>
    <version>[current-version]</version>
</dependency>

Hello World

SOAP service:

@Metered
@WebService
public HelloWorldSOAP {
    @WebMethod
    public String sayHello() {
        return "Hello world!";
    }
}

Dropwizard application:

public class MyApplication extends Application<MyApplicationConfiguration> {

  private JakartaXmlWsBundle<MyApplicationConfiguration> jswBundle = new JakartaXmlWsBundle<>();

    @Override
    public void initialize(Bootstrap<MyApplicationConfiguration> bootstrap) {
      bootstrap.addBundle(jswBundle);
    }

    @Override
    public void run(MyApplicationConfiguration configuration, Environment environment) throws Exception {
      jswBundle.publishEndpoint(
            new EndpointBuilder("/hello", new HelloWorldSOAP()));
    }

    public static void main(String[] args) throws Exception {
        new MyApplication().run(args);
    }
}

Client

Using HelloWorldSOAP web service client:

HelloWorldSOAP helloWorld=jwsBundle.getClient(
    new ClientBuilder(HelloWorldSOAP.class, "http://server/path"));
System.out.println(helloWorld.sayHello());

Examples

Module dropwizard-jakarta-xml-ws-example contains Dropwizard application (JakartaXmlWsExampleApplication) with the following SOAP web services and RESTful resources:

• SimpleService: A minimal 'hello world' example.

• JavaFirstService: Java first development example. JavaFirstService interface uses Jakarta XML Web Services annotations. JavaFirstServiceImpl contains service implementation instrumented with Metrics annotations. Service is secured with basic authentication using dropwizard-auth. BasicAuthenticator implements Dropwizard Authenticator. JavaFirstServiceImpl accesses authenticated user properties via injected Jakarta XML Web Services WebServiceContext.

• WsdlFirstService: WSDL first development example. WSDL is stored in resources/META-INF/WsdlFirstService.wsdl. Code is generated using cxf-codegen-plugin which is configured in pom.xml. WsdlFirstServiceImpl contains service implementation with blocking and non-blocking methods. WsdlFirstServiceHandler contains server-side Jakarta XML Web Services handler.

• HibernateExampleService: dropwizard-hibernate example. HibernateExampleService implements the service. @UnitOfWork annotations are used for defining transactional boundaries. @Valid annotation is used for parameter validation on createPerson method. HibernateExampleService accesses the database through PersonDAO. Embedded H2 database is used. Database configuration is stored in Dropwizard config file config.yaml.

• MtomService: WSDL first MTOM attachment example. WSDL is stored in resources/META-INF/MtomService.wsdl. Code is generated using cxf-codegen-plugin which is configured in pom.xml. MtomServiceImpl contains service implementation with MTOM enabled.

• AccessProtectedServiceResource: Dropwizard RESTful service which uses JavaFirstService client to invoke JavaFirstService SOAP web service on the same host. User credentials are provided to access protected service.

• AccessWsdlFirstServiceResource: Dropwizard RESTful service which uses WsdlFirstService client to invoke WsdlFirstService SOAP web service on the same host. WsdlFirstClientHandler contains client-side Jakarta XML Web Services handler.

• AccessMtomServiceResource: Dropwizard RESTful service which uses MtomService client to invoke MtomService SOAP web service on the same host as an example for client side MTOM support.

• See JakartaXmlWsExampleApplication for examples on usage of client side Jakarta XML Web Services handler and CXF interceptors.

Running the examples:

Before doing anything else, edit pom.xml in the dropwizard-jakarta-xml-ws root folder and uncomment the maven-shade-plugin. This is temporary until the examples are moved into a separate repository.

After cloning the repository, go to the dropwizard-jakarta-xml-ws root folder and run:

mvn package

To run the example service:

java -jar \
  dropwizard-jakarta-xml-ws-example/target/dropwizard-jakarta-xml-ws-example-[version].jar \
  server dropwizard-jakarta-xml-ws-example/config.yaml

Notes

Building FAT jar

When using maven-shade-plugin for building fat jar, you must add the following transformer element to plugin configuration:

<transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
    <resource>META-INF/cxf/bus-extensions.txt</resource>
</transformer>

For example on building fat jar, see dropwizard-jakarta-xml-ws-example/pom.xml.

When using Gradle and a recent version of shadowJar use the following snippet:

shadowJar {
    // ...
    append('META-INF/cxf/bus-extensions.txt')
}

License

Apache Software License 2.0, see LICENSE.

Changelog

The original repository listed its complete change log at the end of this README.

We have moved it here for historical purposes.

Releases in this repository use GitHub releases.