buffer.php

См. документацию.

<?php
 
namespace Bitrix\Rest\Event;
 
use Bitrix\Main\Error;
use Bitrix\Main\Result;
 
class Buffer
{
    private static Buffer $instance;
    private array $events = [];
 
    public static function getInstance(): self
    {
        if (!isset(self::$instance))
        {
            self::$instance = new self;
        }
 
        return self::$instance;
    }
 
    public function addEvent(array $event): Result
    {
        $result = new Result();
 
        if (!$this->isEventDuplicate($event))
        {
            $this->events[] = $event;
        }
        else
        {
            $result->addError(new Error('Event already added'));
        }
 
        return $result;
    }
 
    public function getEvents(): array
    {
        return $this->events;
    }
 
    private function isEventDuplicate(array $event): bool
    {
        return in_array($event, $this->events, true);
    }
 
    private function __construct()
    {
    }
 
    private function __clone()
    {
    }
}