Add NameGeneratorInterface and generators for v3 and v5 UUIDs

src/Generator/PeclUuidNameGenerator.php

@@ -0,0 +1,53 @@
+<?php
+
+/**
+ * This file is part of the ramsey/uuid library
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @copyright Copyright (c) Ben Ramsey <ben@benramsey.com>
+ * @license http://opensource.org/licenses/MIT MIT
+ */
+
+declare(strict_types=1);
+
+namespace Ramsey\Uuid\Generator;
+
+use Ramsey\Uuid\Exception\NameException;
+use Ramsey\Uuid\UuidInterface;
+
+use function sprintf;
+use function uuid_generate_md5;
+use function uuid_generate_sha1;
+use function uuid_parse;
+
+/**
+ * PeclUuidNameGenerator generates strings of binary data from a namespace and a
+ * name, using ext-uuid
+ *
+ * @link https://pecl.php.net/package/uuid ext-uuid
+ */
+class PeclUuidNameGenerator implements NameGeneratorInterface
+{
+    public function generate(UuidInterface $ns, string $name, string $hashAlgorithm): string
+    {
+        switch ($hashAlgorithm) {
+            case 'md5':
+                $uuid = (string) uuid_generate_md5($ns->toString(), $name);
+
+                break;
+            case 'sha1':
+                $uuid = (string) uuid_generate_sha1($ns->toString(), $name);
+
+                break;
+            default:
+                throw new NameException(sprintf(
+                    'Unable to hash namespace and name with algorithm \'%s\'',
+                    $hashAlgorithm
+                ));
+        }
+
+        return (string) uuid_parse($uuid);
+    }
+}