Chapter 33. Embedded Containers

33.1. Sun JDK HTTP Server
33.2. TJWS Embeddable Servlet Container

Resteasy has a few different plugins for different embedabble HTTP and/or Servlet containers if use Resteasy in a test environment, or within an environment where you do not want a Servlet engine dependency.

33.1. Sun JDK HTTP Server

The Sun JDK comes with a simple HTTP server implementation (com.sun.net.httpserver.HttpServer) which you can run Resteasy on top of.

 
      HttpServer httpServer = HttpServer.create(new InetSocketAddress(port), 10);
      contextBuilder = new HttpContextBuilder();
      contextBuilder.getDeployment().getActualResourceClasses().add(SimpleResource.class);
      HttpContext context = contextBuilder.bind(httpServer);
      context.getAttributes().put("some.config.info", "42");
      httpServer.start();

      contextBuilder.cleanup();
      httpServer.stop(0);

Create your HttpServer the way you want then use the org.jboss.resteasy.plugins.server.sun.http.HttpContextBuilder to initialize Resteasy and bind it to an HttpContext. The HttpContext attributes are available by injecting in a org.jboss.resteasy.spi.ResteasyConfiguration interface using @Context within your provider and resource classes.

Maven project you must include is:

 
  <dependency>
      <groupId>org.jboss.resteasy</groupId>
      <artifactId>resteasy-jdk-http</artifactId>
      <version>2.3.3.Final</version>
  </dependency>

33.2. TJWS Embeddable Servlet Container

RESTeasy integrates with the TJWS Embeddable Servlet container. It comes with this distribution, or you can reference the Maven artifact. You must also provide a servlet API dependency as well.

 
  <dependency>
      <groupId>org.jboss.resteasy</groupId>
      <artifactId>tjws</artifactId>
      <version>2.3.3.Final</version>
  </dependency>

  <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>servlet-api</artifactId>
      <version>2.5</version>
  </dependency>

From the distribution, move the jars in resteasy-jaxrs.war/WEB-INF/lib into your classpath. You must both programmatically register your JAX-RS beans using the embedded server's Registry. Here's an example:


@Path("/")
public class MyResource {

   @GET
   public String get() { return "hello world"; }
 

   public static void main(String[] args) throws Exception 
   {
      TJWSEmbeddedJaxrsServer tjws = new TJWSEmbeddedJaxrsServer();
      tjws.setPort(8080);
      tjws.start();
      tjws.getRegistry().addPerRequestResource(RestEasy485Resource.class);
   }
}

The server can either host non-encrypted or SSL based resources, but not both. See the Javadoc for TJWSEmbeddedJaxrsServer as well as its superclass TJWSServletServer. The TJWS website is also a good place for information.

If you want to use Spring, see the SpringBeanProcessor. Here's a pseudo-code example


   public static void main(String[] args) throws Exception 
   {
      final TJWSEmbeddedJaxrsServer tjws = new TJWSEmbeddedJaxrsServer();
      tjws.setPort(8081);

      tjws.start();
      org.jboss.resteasy.plugins.server.servlet.SpringBeanProcessor processor = new SpringBeanProcessor(tjws.getDeployment().getRegistry(), tjws.getDeployment().getFactory();
      ConfigurableBeanFactory factory = new XmlBeanFactory(...);
      factory.addBeanPostProcessor(processor);
   }