@Path("{hostName}/host_components")
  public HostComponentService getHostComponentHandler(@PathParam("hostName") String hostName) {
    return new HostComponentService(m_clusterName, hostName);
  }
Get the host_components sub-resource.

@param hostName host name
@return the host_components service
ambari-server/src/main/java/org/apache/ambari/server/api/services/HostService.java