1: <?php
2:
3: declare(strict_types=1);
4:
5: /**
6: * This file is part of the Nexus MCP SDK package.
7: *
8: * (c) 2026 John Paul E. Balandan, CPA <paulbalandan@gmail.com>
9: *
10: * For the full copyright and license information, please view
11: * the LICENSE file that was distributed with this source code.
12: */
13:
14: namespace Nexus\Mcp\Extension\Tasks\Server\Exception;
15:
16: use Nexus\Mcp\Core\Exception\AbstractJsonRpcProtocolException;
17: use Nexus\Mcp\Core\Schema\Enum\ProtocolErrorCode;
18: use Nexus\Mcp\Core\Schema\RequestId;
19:
20: /**
21: * Thrown when a request would start a task while the server already runs its maximum number of tasks.
22: */
23: final class TaskLimitReachedException extends AbstractJsonRpcProtocolException
24: {
25: public function __construct(int $limit, ?RequestId $requestId = null, ?\Throwable $previous = null)
26: {
27: parent::__construct(
28: $requestId,
29: \sprintf('Task limit reached: this server runs at most %d tasks at once.', $limit),
30: $previous,
31: errorData: ['limit' => $limit],
32: );
33: }
34:
35: #[\Override]
36: public static function getErrorCode(): ProtocolErrorCode
37: {
38: return ProtocolErrorCode::InternalError;
39: }
40: }
41: