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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Predictions processor interface.
*
* @package core_analytics
* @copyright 2017 David Monllao {@link http://www.davidmonllao.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace core_analytics;
defined('MOODLE_INTERNAL') || die();
/**
* Predictors interface.
*
* @package core_analytics
* @copyright 2016 David Monllao {@link http://www.davidmonllao.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
interface predictor {
/**
* Is it ready to predict?
*
* @return bool
*/
public function is_ready();
/**
* Delete all stored information of the current model id.
*
* This method is called when there are important changes to a model,
* all previous training algorithms using that version of the model
* should be deleted.
*
* In case you want to perform extra security measures before deleting
* a directory you can check that $modelversionoutputdir subdirectories
* can only be named 'execution', 'evaluation' or 'testing'.
*
* @param string $uniqueid The site model unique id string
* @param string $modelversionoutputdir The output dir of this model version
* @return null
*/
public function clear_model($uniqueid, $modelversionoutputdir);
/**
* Delete the output directory.
*
* This method is called when a model is completely deleted.
*
* In case you want to perform extra security measures before deleting
* a directory you can check that the subdirectories are timestamps
* (the model version) and each of this subdirectories' subdirectories
* can only be named 'execution', 'evaluation' or 'testing'.
*
* @param string $modeloutputdir The model directory id (parent of all model versions subdirectories).
* @param string $uniqueid
* @return null
*/
public function delete_output_dir($modeloutputdir, $uniqueid);
}