JAXRS endpoint to retrieve Swagger UI HTML page

SwaggerUiResource.java

import io.swagger.annotations.ApiOperation;

import javax.ejb.Stateless;
import javax.inject.Inject;
import javax.servlet.ServletContext;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.core.Response;
import java.io.InputStream;

import static javax.ws.rs.core.Response.Status.NOT_FOUND;

/**
 * Swagger UI endpoint.
 * @author Koert Zeilstra
 */
@Path("")
@Stateless
public class SwaggerUiResource {

  @Inject ServletContext context;

  @ApiOperation(value = "HTML of Swagger UI.", hidden = true)
  @GET
  @Path("/swagger-ui.html")
  public Response indexResource() {

    final InputStream resource = context.getResourceAsStream("/WEB-INF/static/swagger-ui.html");

    return null == resource
        ? Response.status(NOT_FOUND).build()
        : Response.ok().entity(resource).build();
  }
}