112 lines
3.6 KiB
PHP
112 lines
3.6 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\HttpKernel\Log;
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use Psr\Log\AbstractLogger;
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use Psr\Log\InvalidArgumentException;
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use Psr\Log\LogLevel;
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/**
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* Minimalist PSR-3 logger designed to write in stderr or any other stream.
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*
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* @author Kévin Dunglas <dunglas@gmail.com>
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*/
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class Logger extends AbstractLogger
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{
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private static $levels = array(
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LogLevel::DEBUG => 0,
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LogLevel::INFO => 1,
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LogLevel::NOTICE => 2,
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LogLevel::WARNING => 3,
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LogLevel::ERROR => 4,
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LogLevel::CRITICAL => 5,
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LogLevel::ALERT => 6,
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LogLevel::EMERGENCY => 7,
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);
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private $minLevelIndex;
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private $formatter;
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private $handle;
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public function __construct($minLevel = null, $output = 'php://stderr', callable $formatter = null)
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{
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if (null === $minLevel) {
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$minLevel = LogLevel::WARNING;
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if (isset($_ENV['SHELL_VERBOSITY']) || isset($_SERVER['SHELL_VERBOSITY'])) {
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switch ((int) (isset($_ENV['SHELL_VERBOSITY']) ? $_ENV['SHELL_VERBOSITY'] : $_SERVER['SHELL_VERBOSITY'])) {
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case -1: $minLevel = LogLevel::ERROR; break;
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case 1: $minLevel = LogLevel::NOTICE; break;
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case 2: $minLevel = LogLevel::INFO; break;
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case 3: $minLevel = LogLevel::DEBUG; break;
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}
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}
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}
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if (!isset(self::$levels[$minLevel])) {
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throw new InvalidArgumentException(sprintf('The log level "%s" does not exist.', $minLevel));
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}
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$this->minLevelIndex = self::$levels[$minLevel];
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$this->formatter = $formatter ?: array($this, 'format');
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if (false === $this->handle = is_resource($output) ? $output : @fopen($output, 'a')) {
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throw new InvalidArgumentException(sprintf('Unable to open "%s".', $output));
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function log($level, $message, array $context = array())
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{
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if (!isset(self::$levels[$level])) {
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throw new InvalidArgumentException(sprintf('The log level "%s" does not exist.', $level));
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}
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if (self::$levels[$level] < $this->minLevelIndex) {
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return;
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}
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$formatter = $this->formatter;
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fwrite($this->handle, $formatter($level, $message, $context));
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}
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/**
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* @param string $level
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* @param string $message
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* @param array $context
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*
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* @return string
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*/
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private function format($level, $message, array $context)
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{
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if (false !== strpos($message, '{')) {
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$replacements = array();
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foreach ($context as $key => $val) {
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if (null === $val || is_scalar($val) || (\is_object($val) && method_exists($val, '__toString'))) {
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$replacements["{{$key}}"] = $val;
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} elseif ($val instanceof \DateTimeInterface) {
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$replacements["{{$key}}"] = $val->format(\DateTime::RFC3339);
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} elseif (\is_object($val)) {
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$replacements["{{$key}}"] = '[object '.\get_class($val).']';
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} else {
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$replacements["{{$key}}"] = '['.\gettype($val).']';
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}
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}
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$message = strtr($message, $replacements);
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}
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return sprintf('%s [%s] %s', date(\DateTime::RFC3339), $level, $message).\PHP_EOL;
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}
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}
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