feat : Composite file

app/Service/Test/Composite/FileService.php

@@ -0,0 +1,40 @@
+<?php
+/**
+ * This service file is part of item.
+ *
+ * @author   ctexthuang
+ * @contact  ctexthuang@qq.com
+ * @web_site  https://ctexthuang.com
+ */
+
+declare(strict_types=1);
+
+namespace App\Service\Test\Composite;
+
+use App\Service\Test\Composite\File\DirectoryComponent;
+use App\Service\Test\Composite\File\FileComponent;
+use App\Service\Test\TestBaseService;
+
+class FileService extends TestBaseService
+{
+    /**
+     * @return array
+     */
+    public function handle(): array
+    {
+        $root = new DirectoryComponent('root');
+        $documents = new DirectoryComponent('documents');
+        $images = new DirectoryComponent('images');
+        $file1 = new FileComponent('readme.md',1024);
+        $file2 = new FileComponent('report.pdf',2048);
+        $file3 = new FileComponent('photo.jpg',4096);
+        $root->add($documents);
+        $root->add($images);
+        $documents->add($file1);
+        $documents->add($file2);
+        $images->add($file3);
+        $root->display();
+
+        return $this->return->success();
+    }
+}