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<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\HttpKernel\DataCollector;

use Symfony\Component\Debug\ErrorHandler;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Log\DebugLoggerInterface;

/**
 * LogDataCollector.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 */
class LoggerDataCollector extends DataCollector implements LateDataCollectorInterface
{
    private $logger;

public function __construct($logger = null)
    {
        if (null !== $logger && $logger instanceof DebugLoggerInterface) {
            $this->logger = $logger;
        }
    }

/**
     * {@inheritdoc}
     */
    public function collect(Request $request, Response $response, \Exception $exception = null)
    {
        // everything is done as late as possible
    }

/**
     * {@inheritdoc}
     */
    public function lateCollect()
    {
        if (null !== $this->logger) {
            $this->data = $this->computeErrorsCount();
            $this->data['logs'] = $this->sanitizeLogs($this->logger->getLogs());
        }
    }

/**
     * Gets the called events.
     *
     * @return array An array of called events
     *
     * @see TraceableEventDispatcherInterface
     */
    public function countErrors()
    {
        return isset($this->data['error_count']) ? $this->data['error_count'] : 0;
    }

/**
     * Gets the logs.
     *
     * @return array An array of logs
     */
    public function getLogs()
    {
        return isset($this->data['logs']) ? $this->data['logs'] : array();
    }

public function getPriorities()
    {
        return isset($this->data['priorities']) ? $this->data['priorities'] : array();
    }

public function countDeprecations()
    {
        return isset($this->data['deprecation_count']) ? $this->data['deprecation_count'] : 0;
    }

public function countScreams()
    {
        return isset($this->data['scream_count']) ? $this->data['scream_count'] : 0;
    }

/**
     * {@inheritdoc}
     */
    public function getName()
    {
        return 'logger';
    }

private function sanitizeLogs($logs)
    {
        foreach ($logs as $i => $log) {
            $logs[$i]['context'] = $this->sanitizeContext($log['context']);
        }

return $logs;
    }

private function sanitizeContext($context)
    {
        if (is_array($context)) {
            foreach ($context as $key => $value) {
                $context[$key] = $this->sanitizeContext($value);
            }

return $context;
        }

if (is_resource($context)) {
            return sprintf('Resource(%s)', get_resource_type($context));
        }

if (is_object($context)) {
            return sprintf('Object(%s)', get_class($context));
        }

return $context;
    }

private function computeErrorsCount()
    {
        $count = array(
            'error_count' => $this->logger->countErrors(),
            'deprecation_count' => 0,
            'scream_count' => 0,
            'priorities' => array(),
        );

foreach ($this->logger->getLogs() as $log) {
            if (isset($count['priorities'][$log['priority']])) {
                ++$count['priorities'][$log['priority']]['count'];
            } else {
                $count['priorities'][$log['priority']] = array(
                    'count' => 1,
                    'name' => $log['priorityName'],
                );
            }

if (isset($log['context']['type'])) {
                if (ErrorHandler::TYPE_DEPRECATION === $log['context']['type']) {
                    ++$count['deprecation_count'];
                } elseif (isset($log['context']['scream'])) {
                    ++$count['scream_count'];
                }
            }
        }

ksort($count['priorities']);

return $count;
    }
}

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