File Core/Schema/Resource/BlobResourceContents.php

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\Schema\Resource;
15:
16:	use Nexus\Assert\Assert;
17:	use Nexus\Mcp\Core\Schema\MetaObject;
18:
19:	/**
20:	* Binary resource contents. The `blob` payload carries a base64-encoded
21:	* representation of the binary data.
22:	*
23:	* @see https://modelcontextprotocol.io/specification/2025-11-25/schema#blobresourcecontents
24:	*/
25:	final readonly class BlobResourceContents extends ResourceContents
26:	{
27:	public function __construct(
28:	string $uri,
29:	public string $blob,
30:	?string $mimeType = null,
31:	MetaObject $meta = new MetaObject(),
32:	) {
33:	parent::__construct($uri, $mimeType, $meta);
34:	}
35:
36:	/**
37:	* @param array<string, mixed> $data
38:	*/
39:	#[\Override]
40:	public static function fromArray(array $data): static
41:	{
42:	Assert::that($data)->hasOffset('uri', 'blob resource contents missing the required "uri" key.');
43:	$uri = $data['uri'];
44:	Assert::that($uri)->isString('blob resource contents "uri" must be a string, {type} given.');
45:
46:	Assert::that($data)->hasOffset('blob', 'blob resource contents missing the required "blob" key.');
47:	$blob = $data['blob'];
48:	Assert::that($blob)->isString('blob resource contents "blob" must be a string, {type} given.');
49:
50:	$mimeType = $data['mimeType'] ?? null;
51:	Assert::that($mimeType)->nullOr()->isString('blob resource contents "mimeType" must be a string or null, {type} given.');
52:
53:	$meta = new MetaObject();
54:
55:	if (\array_key_exists('_meta', $data)) {
56:	Assert::that($data['_meta'])
57:	->isArray('blob resource contents "_meta" must be an object, {type} given.')
58:	->isMap('blob resource contents "_meta" must be a string-keyed object.')
59:	;
60:	$meta = MetaObject::fromArray($data['_meta']);
61:	}
62:
63:	return new self($uri, $blob, $mimeType, $meta);
64:	}
65:
66:	#[\Override]
67:	public function toArray(): array
68:	{
69:	return [...parent::toArray(), 'blob' => $this->blob];
70:	}
71:	}
72:

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