Jersey 2.x Using Embedded Jetty with Swagger, CORS, and a ServletContextListener

Readme.txt

the .java file is for initializing using embedded Jetty...the web.xml is for deploying the Jersey service as a WAR file.

jersey_sample_embedded_jetty.java

public static Server startServer() throws Exception {
        final ResourceConfig rc =
                new ResourceConfig().packages("com.yourpackage...jersey",
                        "com.wordnik.swagger.jaxrs.listing")
                .register(JacksonFeature.class)        // enable Jackson
                .register(ResponseCorsFilter.class)    // enable CORS
                .register(ApiListingResource.class)
                .register(SwaggerSerializers.class);

        // use Jetty
        ServletContextHandler context
                = new ServletContextHandler(ServletContextHandler.SESSIONS);

        // the main REST service context
        context.setContextPath("/");
        Server jettyServer = new Server(1339);
        jettyServer.setHandler(context);
        ServletHolder jerseyServlet = new ServletHolder(new
                org.glassfish.jersey.servlet.ServletContainer(rc));
        jerseyServlet.setInitOrder(0);
        context.addServlet(jerseyServlet, "/*");
        context.addEventListener(new ServiceInitializer());

        // swagger JSON
        ServletHolder swaggerServlet = new ServletHolder(new JerseyJaxrsConfig());
        swaggerServlet.setName("Jersey2Config");
        swaggerServlet.setInitParameter("swagger.api.basepath", BASE_URI);
        swaggerServlet.setInitParameter("api.version", "1.0.0");
        swaggerServlet.setInitOrder(2);
        context.addServlet(swaggerServlet, "");

        jettyServer.start();
        return jettyServer;
    }

jersey_web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">
    <filter>
        <filter-name>Sequencer-REST</filter-name>
        <filter-class>org.glassfish.jersey.servlet.ServletContainer</filter-class>
        <init-param>
            <param-name>jersey.config.server.provider.packages</param-name>
            <param-value>com.wordnik.swagger.jaxrs.json,com.siriusxm.sequencer.services.jersey</param-value>
        </init-param>
        <init-param>
            <param-name>org.glassfish.jersey.container.ContainerResponseFilters</param-name>
            <param-value>com.yourpackage...ResponseCorsFilter</param-value>
        </init-param>
        <init-param>
            <param-name>jersey.config.server.provider.classnames</param-name>
            <param-value>
                com.wordnik.swagger.jersey.listing.ApiListingResourceJSON,
                com.wordnik.swagger.jersey.listing.JerseyApiDeclarationProvider,
                com.wordnik.swagger.jersey.listing.JerseyResourceListingProvider
            </param-value>
        </init-param>
    </filter>

    <filter-mapping>
        <filter-name>Sequencer-REST</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <servlet>
        <servlet-name>Jersey2Config</servlet-name>
        <servlet-class>com.wordnik.swagger.jersey.config.JerseyJaxrsConfig</servlet-class>
        <init-param>
            <param-name>api.version</param-name>
            <param-value>1.0.0</param-value>
        </init-param>
        <init-param>
            <param-name>swagger.api.basepath</param-name>
            <param-value>http://yourserver.com:8080/</param-value>
        </init-param>
        <load-on-startup>2</load-on-startup>
    </servlet>
    
     <listener>
        <listener-class>com.siriusxm.sequencer.services.jersey.ServiceInitializer</listener-class>
    </listener>
</web-app>