LogMessageParserInterface.php

<?php

namespace Drupal\Core\Logger;


/**
 * Defines an interface for parsing log messages and their placeholders.
 */
interface LogMessageParserInterface {
    
    /**
     * Parses and transforms message and its placeholders to a common format.
     *
     * For a value to be considered as a placeholder should be in the following
     * formats:
     *   - @link https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-3-logger-interface.md#12-message The PSR3 format @endlink
     *   - The Drupal specific string placeholder format, described in
     *     \Drupal\Component\Render\FormattableMarkup
     *
     * Values in PSR3 format will be transformed to
     * \Drupal\Component\Render\FormattableMarkup format.
     *
     * @param string $message
     *   The message that contains the placeholders.
     *   If the message is in PSR3 style, it will be transformed to
     *   \Drupal\Component\Render\FormattableMarkup style.
     * @param array $context
     *   An array that may or may not contain placeholder variables.
     *
     * @return array
     *   An array of the extracted message placeholders.
     *
     * @see \Drupal\Component\Render\FormattableMarkup
     */
    public function parseMessagePlaceholders(&$message, array &$context);

}