From 37cb1a9b364da729cb856418fa39c879bd303a85 Mon Sep 17 00:00:00 2001
From: free will <2647778488@qq.com>
Date: Tue, 9 Mar 2021 21:59:59 +0800
Subject: [PATCH] writing component: IdentifierComponent

---
 .../java/component/IdentifierComponent.java   | 47 +++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 src/main/java/component/IdentifierComponent.java

diff --git a/src/main/java/component/IdentifierComponent.java b/src/main/java/component/IdentifierComponent.java
new file mode 100644
index 0000000..d48540d
--- /dev/null
+++ b/src/main/java/component/IdentifierComponent.java
@@ -0,0 +1,47 @@
+package component;
+
+/*
+ * @Author: Wang Feng
+ * @Description: 名称组件
+ * @Version: 1.0.0
+ * @Date: 21:26 2021/3/9
+ * @Copyright: MIN-Group；国家重大科技基础设施——未来网络北大实验室；深圳市信息论与未来网络重点实验室
+ */
+
+import encoding.Block;
+import encoding.Encoder;
+import encoding.IEncodingAble;
+
+// @Description:
+//	1. 参考 => https://named-data.net/doc/tech-memos/naming-conventions.pdf ，借鉴但不是按这个实现的
+//	2. 格式如下：
+//		IdentifierComponent = 100 TLV-LENGTH
+//                      <Marker>
+//                      *OCTET
+//		Marker = OCTET
+//	3. Marker 用来标记不同类型的 IdentifierComponent，目前分配如下
+// 		Marker value		Description
+//			0x00		普通的UTF-8编码的字符串
+//			0x01		非负整数（可以用1、2、4、8个字节表示）
+//			0x02		任意字节数组
+public class IdentifierComponent implements TlvComponentBase, IEncodingAble {
+    private Block block;
+    private byte marker;           // 标记 => 用来区分不同类型的 IdentifierComponent
+    private String stringValue;    // 如果 Marker == 0x00，则本组件存储一个字符串
+    private long intValue;         // 如果 Marker == 0x01，则本组件存储一个非负整型
+    private byte[] byteArrayValue; // 如果 Marker == 0x02，则本组件存储一个字节数组
+
+    public static final byte MarkerString             = 0x00;
+    public static final byte MarkerNonNegativeInteger = 0x01;
+    public static final byte MarkerByteArray          = 0x02;
+
+    @Override
+    public int wireEncode(Encoder encoder) {
+        return 0;
+    }
+
+    @Override
+    public boolean wireDecode(Block block) {
+        return false;
+    }
+}