Viewing file:  RedisHandler.php (2.68 KB) -rw-r--r--
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<?php declare(strict_types=1);
/*
* This file is part of the Monolog package.
*
* (c) Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Monolog\Handler;
use Monolog\Formatter\LineFormatter;
use Monolog\Formatter\FormatterInterface;
use Monolog\Level;
use Monolog\LogRecord;
use Predis\Client as Predis;
use Redis;
/**
* Logs to a Redis key using rpush
*
* usage example:
*
* $log = new Logger('application');
* $redis = new RedisHandler(new Predis\Client("tcp://localhost:6379"), "logs", "prod");
* $log->pushHandler($redis);
*
* @author Thomas Tourlourat <thomas@tourlourat.com>
*/
class RedisHandler extends AbstractProcessingHandler
{
/** @var Predis<Predis>|Redis */
private Predis|Redis $redisClient;
private string $redisKey;
protected int $capSize;
/**
* @param Predis<Predis>|Redis $redis The redis instance
* @param string $key The key name to push records to
* @param int $capSize Number of entries to limit list size to, 0 = unlimited
*/
public function __construct(Predis|Redis $redis, string $key, int|string|Level $level = Level::Debug, bool $bubble = true, int $capSize = 0)
{
$this->redisClient = $redis;
$this->redisKey = $key;
$this->capSize = $capSize;
parent::__construct($level, $bubble);
}
/**
* @inheritDoc
*/
protected function write(LogRecord $record): void
{
if ($this->capSize > 0) {
$this->writeCapped($record);
} else {
$this->redisClient->rpush($this->redisKey, $record->formatted);
}
}
/**
* Write and cap the collection
* Writes the record to the redis list and caps its
*/
protected function writeCapped(LogRecord $record): void
{
if ($this->redisClient instanceof Redis) {
$mode = defined('Redis::MULTI') ? Redis::MULTI : 1;
$this->redisClient->multi($mode)
->rPush($this->redisKey, $record->formatted)
->ltrim($this->redisKey, -$this->capSize, -1)
->exec();
} else {
$redisKey = $this->redisKey;
$capSize = $this->capSize;
$this->redisClient->transaction(function ($tx) use ($record, $redisKey, $capSize) {
$tx->rpush($redisKey, $record->formatted);
$tx->ltrim($redisKey, -$capSize, -1);
});
}
}
/**
* @inheritDoc
*/
protected function getDefaultFormatter(): FormatterInterface
{
return new LineFormatter();
}
}
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