@POST @ApiIgnore // ignored as doesnt work as intended, not able to accept multiple HostRoles
  @Produces(MediaType.TEXT_PLAIN)
  @ApiOperation(value = "Create new host components")
  @ApiImplicitParams({
    @ApiImplicitParam(dataType = HOST_ROLE_REQUEST_TYPE, paramType = PARAM_TYPE_BODY,  allowMultiple = true)
  })
  @ApiResponses(value = {
    @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_NOT_FOUND, message = MSG_CLUSTER_NOT_FOUND),
    @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 createHostComponents(String body, @Context HttpHeaders headers, @Context UriInfo ui) {

    return handleRequest(headers, body, ui, Request.Type.POST,
        createHostComponentResource(m_clusterName, m_hostName, null));
  }
Handles POST /clusters/{clusterID}/hosts/{hostID}/host_components
Create host components by specifying an array of host components in the http body.
This is used to create multiple host components in a single request.

@param body              http body
@param headers           http headers
@param ui                uri info

@return status code only, 201 if successful
ambari-server/src/main/java/org/apache/ambari/server/api/services/HostComponentService.java