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<?php |
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/** |
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* This file is part of the Apix Project. |
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* |
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* (c) Franck Cassedanne <franck at ouarz.net> |
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* |
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* @license http://opensource.org/licenses/BSD-3-Clause New BSD License |
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*/ |
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namespace Apix\Log; |
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use Apix\Log\Logger\AbstractLogger; |
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use Psr\Log\InvalidArgumentException; |
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/** |
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* Minimalist logger implementing PSR-3 relying on PHP's error_log(). |
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* |
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* @author Franck Cassedanne <franck at ouarz.net> |
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*/ |
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class Logger extends AbstractLogger |
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{ |
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/** |
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* Holds all the registered loggers as buckets. |
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* |
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* @var Logger\LoggerInterface[]. |
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*/ |
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protected $buckets = array(); |
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/** |
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* Constructor. |
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* |
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* @param Logger\LoggerInterface[] $loggers |
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*/ |
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public function __construct(array $loggers = array()) |
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{ |
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foreach ($loggers as $key => $logger) { |
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if ($logger instanceof Logger\LoggerInterface) { |
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$this->buckets[] = $logger; |
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} else { |
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throw new InvalidArgumentException( |
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sprintf( |
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'"%s" must interface "%s".', |
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get_class($logger), |
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__NAMESPACE__.'\Logger\LoggerInterface' |
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) |
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); |
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} |
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} |
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$this->sortBuckets(); |
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} |
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/** |
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* Processes the given log. |
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* (overwrite abstract). |
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* |
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* @param LogEntry $log The log record to handle. |
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* |
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* @return bool False when not processed. |
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*/ |
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public function process(LogEntry $log) |
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{ |
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$i = $this->getIndexFirstBucket($log->level_code); |
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if (false !== $i) { |
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while ( |
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isset($this->buckets[$i]) |
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&& $this->buckets[$i]->process($log) |
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) { |
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++$i; |
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} |
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return true; |
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} |
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return false; |
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} |
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/** |
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* Checks if any log bucket can hanle the given code. |
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* |
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* @param int $level_code |
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* |
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* @return int|false |
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*/ |
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protected function getIndexFirstBucket($level_code) |
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{ |
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foreach ($this->buckets as $key => $logger) { |
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if ($logger->isHandling($level_code)) { |
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return $key; |
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} |
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} |
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return false; |
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} |
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/** |
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* Gets the name of the PSR-3 logging level. |
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* |
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* @param string $level_name |
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* |
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* @return string |
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* |
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* @throws InvalidArgumentException |
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*/ |
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public static function getPsrLevelName($level_name) |
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{ |
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$logLevel = '\Psr\Log\LogLevel::'.strtoupper($level_name); |
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if (!defined($logLevel)) { |
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throw new InvalidArgumentException( |
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sprintf('Invalid PSR-3 log level "%s"', $level_name) |
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); |
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} |
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return $level_name; |
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} |
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/** |
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* Adds a logger. |
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* |
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* @param Logger\LoggerInterface $logger |
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* |
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* @return bool Returns TRUE on success or FALSE on failure. |
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*/ |
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public function add(Logger\LoggerInterface $logger) |
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{ |
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$this->buckets[] = $logger; |
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return $this->sortBuckets(); |
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} |
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/** |
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* Sorts the log buckets, prioritizes top-down by minimal level. |
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* Beware: Exisiting level will be in FIFO order. |
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* |
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* @return bool Returns TRUE on success or FALSE on failure. |
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*/ |
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protected function sortBuckets() |
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{ |
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return usort( |
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$this->buckets, function ($a, $b) { |
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return $a->getMinLevel() > $b->getMinLevel(); |
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} |
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); |
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} |
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/** |
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* Returns all the registered log buckets. |
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* |
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* @return array |
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*/ |
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public function getBuckets() |
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{ |
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return $this->buckets; |
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} |
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} |
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apix /
log
