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| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU General Public License |
| 7 | * as published by the Free Software Foundation; under version 2 |
| 8 | * of the License (non-upgradable). |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 18 | * |
| 19 | * Copyright (c) 2018 (original work) Open Assessment Technologies SA (under the project TAO-PRODUCT); |
| 20 | * |
| 21 | */ |
| 22 | |
| 23 | namespace oat\tao\model\metrics; |
| 24 | |
| 25 | use oat\oatbox\service\ConfigurableService; |
| 26 | use oat\tao\model\metadata\exception\InconsistencyConfigException; |
| 27 | use oat\tao\model\metrics\implementations\abstractMetrics; |
| 28 | |
| 29 | class MetricsService extends ConfigurableService |
| 30 | { |
| 31 | public const SERVICE_ID = 'tao/metrics'; |
| 32 | public const OPTION_METRICS = 'metrics'; |
| 33 | private $metrics = []; |
| 34 | |
| 35 | |
| 36 | /** |
| 37 | * @return abstractMetrics[] |
| 38 | */ |
| 39 | protected function getMetrics() |
| 40 | { |
| 41 | if (!$this->metrics) { |
| 42 | $metrics = $this->getOption(self::OPTION_METRICS); |
| 43 | foreach ($metrics as $metric) { |
| 44 | $this->propagate($metric); |
| 45 | } |
| 46 | $this->metrics = $metrics; |
| 47 | } |
| 48 | return $this->metrics; |
| 49 | } |
| 50 | |
| 51 | public function collect() |
| 52 | { |
| 53 | foreach ($this->getMetrics() as $metric) { |
| 54 | $metric->collect(); |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | /** |
| 59 | * @param $metricName |
| 60 | * @return null|abstractMetrics |
| 61 | * @throws InconsistencyConfigException |
| 62 | */ |
| 63 | public function getOneMetric($metricName) |
| 64 | { |
| 65 | $metrics = $this->getMetrics(); |
| 66 | if (array_key_exists($metricName, $metrics)) { |
| 67 | $result = $metrics[$metricName]; |
| 68 | } else { |
| 69 | throw new InconsistencyConfigException('Attempt to access unknown metric detected' . $metricName); |
| 70 | } |
| 71 | |
| 72 | return $result; |
| 73 | } |
| 74 | } |