code: @GET
    @Path("/{host}/jobs/{job}")
    @Produces(APPLICATION_JSON)
    @Timed
    @ExceptionMetered
    public Optional<Deployment> jobGet(@PathParam("host") final String host,
                                       @PathParam("job") final JobId jobId) {
      if (!jobId.isFullyQualified()) {
        throw badRequest();
      }
      return Optional.fromNullable(model.getDeployment(host, jobId));
    }
docs: Returns the current {@link Deployment} of {@code job} on {@code host} if it is deployed.
  
  @param host  The host where the job is deployed.
  @param jobId The ID of the job.
  
  @return The response.