@GET @ApiIgnore // until documented
  @Path("{osType}")
  @Produces("text/plain")
  public Response getOperatingSystem(@Context HttpHeaders headers, @Context UriInfo ui, @PathParam("osType") String osType) {
    return handleRequest(headers, null, ui, Request.Type.GET, createResource(osType));
  }
Gets a single operating system.
Handles: GET /operating_systems/{osType} requests.

@param headers http headers
@param ui      uri info
@param osType  os type
@return information regarding the specified operating system
ambari-server/src/main/java/org/apache/ambari/server/api/services/OperatingSystemService.java