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115 | office | 1 | <?php |
2 | |||
3 | /* |
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4 | * This file is part of the Monolog package. |
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5 | * |
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6 | * (c) Jordi Boggiano <j.boggiano@seld.be> |
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7 | * |
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8 | * For the full copyright and license information, please view the LICENSE |
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9 | * file that was distributed with this source code. |
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10 | */ |
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11 | |||
12 | namespace Monolog\Handler; |
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13 | |||
14 | use Monolog\Formatter\LineFormatter; |
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15 | use Monolog\Logger; |
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16 | |||
17 | /** |
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18 | * Logs to a Redis key using rpush |
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19 | * |
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20 | * usage example: |
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21 | * |
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22 | * $log = new Logger('application'); |
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23 | * $redis = new RedisHandler(new Predis\Client("tcp://localhost:6379"), "logs", "prod"); |
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24 | * $log->pushHandler($redis); |
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25 | * |
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26 | * @author Thomas Tourlourat <thomas@tourlourat.com> |
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27 | */ |
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28 | class RedisHandler extends AbstractProcessingHandler |
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29 | { |
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30 | private $redisClient; |
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31 | private $redisKey; |
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32 | protected $capSize; |
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33 | |||
34 | /** |
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35 | * @param \Predis\Client|\Redis $redis The redis instance |
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36 | * @param string $key The key name to push records to |
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37 | * @param int $level The minimum logging level at which this handler will be triggered |
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38 | * @param bool $bubble Whether the messages that are handled can bubble up the stack or not |
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39 | * @param int $capSize Number of entries to limit list size to |
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40 | */ |
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41 | public function __construct($redis, $key, $level = Logger::DEBUG, $bubble = true, $capSize = false) |
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42 | { |
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43 | if (!(($redis instanceof \Predis\Client) || ($redis instanceof \Redis))) { |
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44 | throw new \InvalidArgumentException('Predis\Client or Redis instance required'); |
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45 | } |
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46 | |||
47 | $this->redisClient = $redis; |
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48 | $this->redisKey = $key; |
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49 | $this->capSize = $capSize; |
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50 | |||
51 | parent::__construct($level, $bubble); |
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52 | } |
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53 | |||
54 | /** |
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55 | * {@inheritDoc} |
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56 | */ |
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57 | protected function write(array $record) |
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58 | { |
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59 | if ($this->capSize) { |
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60 | $this->writeCapped($record); |
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61 | } else { |
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62 | $this->redisClient->rpush($this->redisKey, $record["formatted"]); |
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63 | } |
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64 | } |
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65 | |||
66 | /** |
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67 | * Write and cap the collection |
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68 | * Writes the record to the redis list and caps its |
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69 | * |
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70 | * @param array $record associative record array |
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71 | * @return void |
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72 | */ |
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73 | protected function writeCapped(array $record) |
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74 | { |
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75 | if ($this->redisClient instanceof \Redis) { |
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76 | $this->redisClient->multi() |
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77 | ->rpush($this->redisKey, $record["formatted"]) |
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78 | ->ltrim($this->redisKey, -$this->capSize, -1) |
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79 | ->exec(); |
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80 | } else { |
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81 | $redisKey = $this->redisKey; |
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82 | $capSize = $this->capSize; |
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83 | $this->redisClient->transaction(function ($tx) use ($record, $redisKey, $capSize) { |
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84 | $tx->rpush($redisKey, $record["formatted"]); |
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85 | $tx->ltrim($redisKey, -$capSize, -1); |
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86 | }); |
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87 | } |
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88 | } |
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89 | |||
90 | /** |
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91 | * {@inheritDoc} |
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92 | */ |
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93 | protected function getDefaultFormatter() |
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94 | { |
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95 | return new LineFormatter(); |
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96 | } |
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97 | } |