From 5e30d219b3dadd0ba113427af75d7e279a0832ee Mon Sep 17 00:00:00 2001
From: Sam Anthony <sam@samanthony.xyz>
Date: Thu, 14 Nov 2024 11:25:20 -0500
Subject: packet serializer routines

---
 src/main/java/derms/net/Packet.java | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 src/main/java/derms/net/Packet.java

(limited to 'src/main')

diff --git a/src/main/java/derms/net/Packet.java b/src/main/java/derms/net/Packet.java
new file mode 100644
index 0000000..68416d7
--- /dev/null
+++ b/src/main/java/derms/net/Packet.java
@@ -0,0 +1,25 @@
+package derms.net;
+
+import java.io.*;
+import java.net.DatagramPacket;
+import java.net.SocketAddress;
+
+public class Packet {
+    public static DatagramPacket encode(Serializable obj, SocketAddress dst) throws IOException {
+        ByteArrayOutputStream byteStream = new ByteArrayOutputStream();
+        ObjectOutputStream objStream = new ObjectOutputStream(byteStream);
+        objStream.writeObject(obj);
+        objStream.flush();
+        byte[] buf = byteStream.toByteArray();
+        objStream.close();
+        return new DatagramPacket(buf, buf.length, dst);
+    }
+
+    public static <T extends Serializable> T decode(DatagramPacket pkt, Class<T> clazz) throws IOException, ClassNotFoundException, ClassCastException {
+        ObjectInputStream objStream = new ObjectInputStream(
+                new ByteArrayInputStream(pkt.getData()));
+        T obj = clazz.cast(objStream.readObject());
+        objStream.close();
+        return obj;
+    }
+}
-- 
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