feat : Composite file

app/Service/Test/Composite/File/FileComponent.php

@@ -0,0 +1,65 @@
+<?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\File;
+
+use App\Interface\Test\Composite\FileSystemComponentInterface;
+
+class FileComponent implements FileSystemComponentInterface
+{
+    /**
+     * 文件名字
+     * @var string
+     */
+    private string $name;
+
+    /**
+     * 文件大小
+     * @var int
+     */
+    private int $size;
+
+    /**
+     * 构造方法
+     * @param string $name
+     * @param int $size
+     */
+    public function __construct(string $name, int $size)
+    {
+        $this->name = $name;
+        $this->size = $size;
+    }
+
+    /**
+     * @return string
+     */
+    public function getName(): string
+    {
+        return $this->name;
+    }
+
+    /**
+     * @return int
+     */
+    public function getSize(): int
+    {
+        return $this->size;
+    }
+
+    /**
+     * @param string $prefix
+     * @return void
+     */
+    public function display(string $prefix = ''): void
+    {
+        echo $prefix . ":file:" . $this->name . '(' . $this->size . 'bytes)' . PHP_EOL;
+    }
+}