91 lines
2.3 KiB
PHP
91 lines
2.3 KiB
PHP
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<?php
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declare(strict_types=1);
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namespace OpenTelemetry\API\Behavior\Internal;
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use OpenTelemetry\API\Behavior\Internal\LogWriter\LogWriterInterface;
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use Psr\Log\LogLevel;
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/**
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* Logging utility functions for internal logging (of OpenTelemetry errors/warnings etc).
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* This is not part of SDK configuration to avoid creating a dependency on SDK from any package which does logging.
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* @todo this should be `@internal`, but deptrac is not happy with that.
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*/
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class Logging
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{
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private const OTEL_LOG_LEVEL = 'OTEL_LOG_LEVEL';
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private const DEFAULT_LEVEL = LogLevel::INFO;
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private const NONE = 'none';
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private const LEVELS = [
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LogLevel::DEBUG,
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LogLevel::INFO,
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LogLevel::NOTICE,
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LogLevel::WARNING,
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LogLevel::ERROR,
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LogLevel::CRITICAL,
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LogLevel::ALERT,
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LogLevel::EMERGENCY,
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self::NONE, //highest priority so that nothing is logged
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];
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/**
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* The minimum log level. Messages with lower severity than this will be ignored.
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*/
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private static ?int $logLevel = null;
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private static ?LogWriterInterface $writer = null;
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public static function setLogWriter(LogWriterInterface $writer): void
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{
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self::$writer = $writer;
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}
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public static function logWriter(): LogWriterInterface
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{
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self::$writer ??= (new LogWriterFactory())->create();
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return self::$writer;
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}
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/**
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* Get level priority from level name
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*/
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public static function level(string $level): int
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{
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$value = array_search($level, self::LEVELS);
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return $value ?: 1; //'info'
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}
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/**
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* Get defined OTEL_LOG_LEVEL, or default
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*/
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public static function logLevel(): int
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{
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self::$logLevel ??= self::getLogLevel();
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return self::$logLevel;
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}
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private static function getLogLevel(): int
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{
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$level = array_key_exists(self::OTEL_LOG_LEVEL, $_SERVER)
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? $_SERVER[self::OTEL_LOG_LEVEL]
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: getenv(self::OTEL_LOG_LEVEL);
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if (!$level) {
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$level = ini_get(self::OTEL_LOG_LEVEL);
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}
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if (!$level) {
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$level = self::DEFAULT_LEVEL;
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}
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return self::level($level);
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}
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public static function reset(): void
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{
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self::$logLevel = null;
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self::$writer = null;
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}
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}
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