Extract protocollib method detection

Author: games647

bukkit/src/main/java/com/github/games647/fastlogin/bukkit/listener/protocollib/ProtocolLibListener.java

@@ -80,7 +80,7 @@ public void onPacketReceiving(PacketEvent packetEvent) {
             return;
         }
 
-        if (packetEvent.getPacket().getMeta(SOURCE_META_KEY).map(val -> val.equals(plugin.getName())).orElse(false)) {
+        if (isFastLoginPacket(packetEvent)) {
             // this is our own packet
             return;
         }
@@ -99,6 +99,12 @@ public void onPacketReceiving(PacketEvent packetEvent) {
         }
     }
 
+    private Boolean isFastLoginPacket(PacketEvent packetEvent) {
+        return packetEvent.getPacket().getMeta(SOURCE_META_KEY)
+                .map(val -> val.equals(plugin.getName()))
+                .orElse(false);
+    }
+
     private void onEncryptionBegin(PacketEvent packetEvent, Player sender) {
         byte[] sharedSecret = packetEvent.getPacket().getByteArrays().read(0);