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| 1 | <?php |
| 2 | /** |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License as published by |
| 5 | * the Free Software Foundation; either version 2 of the License, or |
| 6 | * (at your option) any later version. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along |
| 14 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 16 | * http://www.gnu.org/copyleft/gpl.html |
| 17 | * @file |
| 18 | */ |
| 19 | |
| 20 | declare( strict_types=1 ); |
| 21 | |
| 22 | namespace Wikimedia\Stats\Metrics; |
| 23 | |
| 24 | use InvalidArgumentException; |
| 25 | use Psr\Log\LoggerInterface; |
| 26 | use Wikimedia\Stats\Exceptions\IllegalOperationException; |
| 27 | |
| 28 | /** |
| 29 | * Implementation code common to all metric types. |
| 30 | * |
| 31 | * @internal |
| 32 | * @since 1.43 |
| 33 | */ |
| 34 | trait MetricTrait { |
| 35 | /** @var BaseMetricInterface */ |
| 36 | private BaseMetricInterface $baseMetric; |
| 37 | |
| 38 | /** @var LoggerInterface */ |
| 39 | private LoggerInterface $logger; |
| 40 | |
| 41 | /** @inheritDoc */ |
| 42 | public function __construct( $baseMetric, $logger ) { |
| 43 | $this->baseMetric = $baseMetric; |
| 44 | $this->logger = $logger; |
| 45 | } |
| 46 | |
| 47 | /** @inheritDoc */ |
| 48 | public function getName(): string { |
| 49 | return $this->baseMetric->getName(); |
| 50 | } |
| 51 | |
| 52 | /** @inheritDoc */ |
| 53 | public function getComponent(): string { |
| 54 | return $this->baseMetric->getComponent(); |
| 55 | } |
| 56 | |
| 57 | /** @inheritDoc */ |
| 58 | public function getSamples(): array { |
| 59 | return $this->baseMetric->getSamples(); |
| 60 | } |
| 61 | |
| 62 | /** @inheritDoc */ |
| 63 | public function getSampleCount(): int { |
| 64 | return $this->baseMetric->getSampleCount(); |
| 65 | } |
| 66 | |
| 67 | /** @inheritDoc */ |
| 68 | public function getSampleRate(): float { |
| 69 | return $this->baseMetric->getSampleRate(); |
| 70 | } |
| 71 | |
| 72 | /** @inheritDoc */ |
| 73 | public function setSampleRate( float $sampleRate ) { |
| 74 | try { |
| 75 | $this->baseMetric->setSampleRate( $sampleRate ); |
| 76 | } catch ( IllegalOperationException | InvalidArgumentException $ex ) { |
| 77 | // Log the condition and give the caller something that will absorb calls. |
| 78 | trigger_error( $ex->getMessage(), E_USER_WARNING ); |
| 79 | return new NullMetric; |
| 80 | } |
| 81 | return $this; |
| 82 | } |
| 83 | |
| 84 | /** @inheritDoc */ |
| 85 | public function getLabelKeys(): array { |
| 86 | return $this->baseMetric->getLabelKeys(); |
| 87 | } |
| 88 | |
| 89 | /** @inheritDoc */ |
| 90 | public function setLabel( string $key, string $value ) { |
| 91 | try { |
| 92 | $this->baseMetric->addLabel( $key, $value ); |
| 93 | } catch ( IllegalOperationException | InvalidArgumentException $ex ) { |
| 94 | // Log the condition and give the caller something that will absorb calls. |
| 95 | trigger_error( $ex->getMessage(), E_USER_WARNING ); |
| 96 | return new NullMetric; |
| 97 | } |
| 98 | return $this; |
| 99 | } |
| 100 | |
| 101 | /** @inheritDoc */ |
| 102 | public function setLabels( array $labels ) { |
| 103 | try { |
| 104 | foreach ( $labels as $key => $value ) { |
| 105 | $this->baseMetric->addLabel( $key, $value ); |
| 106 | } |
| 107 | } catch ( IllegalOperationException | InvalidArgumentException $ex ) { |
| 108 | // Log the condition and give the caller something that will absorb calls. |
| 109 | trigger_error( $ex->getMessage(), E_USER_WARNING ); |
| 110 | return new NullMetric; |
| 111 | } |
| 112 | return $this; |
| 113 | } |
| 114 | |
| 115 | /** @inheritDoc */ |
| 116 | public function copyToStatsdAt( $statsdNamespaces ) { |
| 117 | try { |
| 118 | $this->baseMetric->setStatsdNamespaces( $statsdNamespaces ); |
| 119 | } catch ( InvalidArgumentException $ex ) { |
| 120 | // Log the condition and give the caller something that will absorb calls. |
| 121 | trigger_error( $ex->getMessage(), E_USER_WARNING ); |
| 122 | return new NullMetric; |
| 123 | } |
| 124 | return $this; |
| 125 | } |
| 126 | |
| 127 | /** @inheritDoc */ |
| 128 | public function fresh(): self { |
| 129 | $this->baseMetric->clearLabels(); |
| 130 | return $this; |
| 131 | } |
| 132 | } |