Abstract Logger class intended at time of writing (early 2013) for logging in new stack

gistfile1.txt

<?php
/**
 * File containing the Abstract ProfileLogger class
 *
 * @copyright Copyright (C) 1999-2013 eZ Systems AS. All rights reserved.
 * @license http://www.gnu.org/licenses/gpl-2.0.txt GNU General Public License v2
 * @version //autogentag//
 */

namespace eZ\Publish\SPI\Profiler;

use eZ\Publish\SPI\Profiler\ProfilerInterface;
use Psr\Log\AbstractLogger;
use Psr\Log\LogLevel;
use Psr\Log\InvalidArgumentException;

/**
 * ProfileLogger
 *
 * Generic logger that can be used for all SPi's to log information to be shown in (web) profiler.
 */
abstract class ProfileLogger extends AbstractLogger implements ProfilerInterface
{
    /**
     * @var int
     */
    protected $count = array();

    /**
     * @var array
     */
    protected $logs = array();

    /**
     * Logs with an arbitrary level.
     *
     * tip: Prefer to use the other functions for better code readability and less typing.
     *
     * @param mixed $level
     * @param string $message
     * @param array $context
     *
     * @throws \Psr\Log\InvalidArgumentException If $level is invalid
     * @return void
     */
    final public function log( $level, $message, array $context = array() )
    {
        if (
            $level !== LogLevel::ALERT &&
            $level !== LogLevel::CRITICAL &&
            $level !== LogLevel::DEBUG &&
            $level !== LogLevel::EMERGENCY &&
            $level !== LogLevel::ERROR &&
            $level !== LogLevel::INFO &&
            $level !== LogLevel::NOTICE &&
            $level !== LogLevel::WARNING
        )
        {
            throw new InvalidArgumentException( "Log \$level not valid: " . $level );
        }

        $this->logs[] = array( $level, $message, $context );
        $this->count[$level]++;
    }

    /**
     * @return int
     */
    final public function getTotalCount()
    {
        return array_sum( $this->count );
    }

    /**
     * @return int[]
     */
    final public function getLevelCount()
    {
        return $this->count;
    }

    /**
     * @return array
     */
    final public function getLogs()
    {
        return $this->logs;
    }
}