From 45298453ec4c78b68a2c42782655451f72aa560d Mon Sep 17 00:00:00 2001
From: Henning Baldersheim <balder@yahoo-inc.com>
Date: Wed, 27 Mar 2019 11:43:05 +0200
Subject: GC old complicated stuff that is no longer in use to simplify.

---
 .../src/main/java/com/yahoo/fs4/BasicPacket.java   | 36 ++++------------------
 .../src/main/java/com/yahoo/fs4/Packet.java        | 13 --------
 2 files changed, 6 insertions(+), 43 deletions(-)

(limited to 'container-search/src/main/java/com/yahoo/fs4')

diff --git a/container-search/src/main/java/com/yahoo/fs4/BasicPacket.java b/container-search/src/main/java/com/yahoo/fs4/BasicPacket.java
index 5441fff1aeb..ceb3ca31527 100644
--- a/container-search/src/main/java/com/yahoo/fs4/BasicPacket.java
+++ b/container-search/src/main/java/com/yahoo/fs4/BasicPacket.java
@@ -28,8 +28,6 @@ public abstract class BasicPacket {
 
     private byte[] encodedBody;
 
-    private ByteBuffer encodingBuffer;
-
     /** The length of this packet in bytes or -1 if not known */
     protected int length = -1;
 
@@ -222,16 +220,11 @@ public abstract class BasicPacket {
      *
      * If this packet does not use a channel ID, the ID will be ignored.
      */
-    public final void allocateAndEncode(int channelId) {
-        allocateAndEncode(channelId, DEFAULT_WRITE_BUFFER_SIZE);
+    public final ByteBuffer allocateAndEncode(int channelId) {
+        return allocateAndEncode(channelId, DEFAULT_WRITE_BUFFER_SIZE);
     }
 
-    private void allocateAndEncode(int channelId, int initialSize) {
-        if (encodingBuffer != null) {
-            patchChannelId(encodingBuffer, channelId);
-            return;
-        }
-
+    private ByteBuffer allocateAndEncode(int channelId, int initialSize) {
         int size = initialSize;
         ByteBuffer buffer = ByteBuffer.allocate(size);
         while (true) {
@@ -242,7 +235,6 @@ public abstract class BasicPacket {
                     encode(buffer);
                 }
                 buffer.flip();
-                encodingBuffer = buffer;
                 break;
             }
             catch (BufferTooSmallException e) {
@@ -250,35 +242,19 @@ public abstract class BasicPacket {
                 buffer = ByteBuffer.allocate(size);
             }
         }
+        return buffer;
     }
 
-    // No channel ID for BasicPacket instances, so it's a NOP
-    protected void patchChannelId(ByteBuffer buf, int channelId) {}
-
     /**
      * Return buffer containing the encoded form of this package and
      * remove internal reference to it.
      */
     public final ByteBuffer grantEncodingBuffer(int channelId) {
-        if (encodingBuffer == null) {
-            allocateAndEncode(channelId);
-        } else {
-            patchChannelId(encodingBuffer, channelId);
-        }
-        ByteBuffer b = encodingBuffer;
-        encodingBuffer = null;
-        return b;
+        return allocateAndEncode(channelId);
     }
 
     public final ByteBuffer grantEncodingBuffer(int channelId, int initialSize) {
-        if (encodingBuffer == null) {
-            allocateAndEncode(channelId, initialSize);
-        } else {
-            patchChannelId(encodingBuffer, channelId);
-        }
-        ByteBuffer b = encodingBuffer;
-        encodingBuffer = null;
-        return b;
+        return allocateAndEncode(channelId, initialSize);
     }
 
     /** Returns the code of this package */
diff --git a/container-search/src/main/java/com/yahoo/fs4/Packet.java b/container-search/src/main/java/com/yahoo/fs4/Packet.java
index 78d5083c25f..1e9deede59d 100644
--- a/container-search/src/main/java/com/yahoo/fs4/Packet.java
+++ b/container-search/src/main/java/com/yahoo/fs4/Packet.java
@@ -19,8 +19,6 @@ public abstract class Packet extends BasicPacket {
      */
     protected int channel = -1;
 
-    private static final int CHANNEL_ID_OFFSET = 8;
-
     /**
      * Fills this package from a byte buffer positioned at the first
      * byte of the package
@@ -109,17 +107,6 @@ public abstract class Packet extends BasicPacket {
         return true;
     }
 
-    /**
-     * Only for use with encodingBuffer magic.
-     *
-     * This is only called from allocateAndEncode and grantEncodingBuffer,
-     * therefore an assumption about the packet starting at the beginning of the
-     * buffer is made.
-     */
-    protected void patchChannelId(ByteBuffer buf, int channelId) {
-        buf.putInt(CHANNEL_ID_OFFSET, channelId);
-    }
-
     public String toString() {
         return "packet with code " + getCode() + ", channelId=" + getChannel();
     }
-- 
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