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\Core\Exception;
15:
16: use Nexus\Mcp\Core\Schema\Enum\ProtocolErrorCode;
17: use Nexus\Mcp\Core\Schema\RequestId;
18:
19: /**
20: * Thrown when an inbound request reuses an id whose handler coroutine is still running on the same session.
21: */
22: final class DuplicateInboundRequestIdException extends AbstractJsonRpcProtocolException
23: {
24: public function __construct(RequestId $requestId, ?\Throwable $previous = null)
25: {
26: parent::__construct(
27: $requestId,
28: 'Inbound request id is already pending on this session.',
29: $previous,
30: );
31: }
32:
33: #[\Override]
34: public static function getErrorCode(): ProtocolErrorCode
35: {
36: return ProtocolErrorCode::InvalidRequest;
37: }
38: }
39: