@POST
  @Produces(MediaType.TEXT_PLAIN)
  @ApiOperation(value = "Registers an mpack with this Ambari mpack")
  @ApiImplicitParams({
    @ApiImplicitParam(dataType = MPACK_REQUEST_TYPE, paramType = PARAM_TYPE_BODY)
  })
  @ApiResponses({
    @ApiResponse(code = HttpStatus.SC_CREATED, message = MSG_SUCCESSFUL_OPERATION),
    @ApiResponse(code = HttpStatus.SC_ACCEPTED, message = MSG_REQUEST_ACCEPTED),
    @ApiResponse(code = HttpStatus.SC_BAD_REQUEST, message = MSG_INVALID_ARGUMENTS),
    @ApiResponse(code = HttpStatus.SC_CONFLICT, message = MSG_RESOURCE_ALREADY_EXISTS),
    @ApiResponse(code = HttpStatus.SC_UNAUTHORIZED, message = MSG_NOT_AUTHENTICATED),
    @ApiResponse(code = HttpStatus.SC_FORBIDDEN, message = MSG_PERMISSION_DENIED),
    @ApiResponse(code = HttpStatus.SC_INTERNAL_SERVER_ERROR, message = MSG_SERVER_ERROR),
  })
  public Response createMpacks(String body, @Context HttpHeaders headers, @Context UriInfo ui) {
    return handleRequest(headers, body, ui, Request.Type.POST, createMpackResource(null));
  }
Handles: POST /mpacks/

@param headers http headers
@param ui      uri info
@param body    request body
@return information regarding the created mpack
ambari-server/src/main/java/org/apache/ambari/server/api/services/MpacksService.java