From 64973957f0de71275c1b26b138eb0b8cd8565064 Mon Sep 17 00:00:00 2001
From: Tal Levy <jubboy333@gmail.com>
Date: Mon, 25 Nov 2019 13:36:03 -0800
Subject: [PATCH] reduce Extent serialization to 16 bytes

Extent was serializing 6 numbers, but that
was unnecessary since two can be derived.
---
 .../org/elasticsearch/common/geo/Extent.java  | 34 +++++++++++++++----
 1 file changed, 28 insertions(+), 6 deletions(-)

diff --git a/server/src/main/java/org/elasticsearch/common/geo/Extent.java b/server/src/main/java/org/elasticsearch/common/geo/Extent.java
index 46991c8a2801f..bc65ffd345950 100644
--- a/server/src/main/java/org/elasticsearch/common/geo/Extent.java
+++ b/server/src/main/java/org/elasticsearch/common/geo/Extent.java
@@ -30,7 +30,7 @@
  * {@link GeometryTreeWriter} and {@link EdgeTreeWriter}.
  */
 public class Extent implements Writeable {
-    static final int WRITEABLE_SIZE_IN_BYTES = 24;
+    static final int WRITEABLE_SIZE_IN_BYTES = 16;
 
     public final int top;
     public final int bottom;
@@ -49,7 +49,31 @@ public Extent(int top, int bottom, int negLeft, int negRight, int posLeft, int p
     }
 
     Extent(StreamInput input) throws IOException {
-        this(input.readInt(), input.readInt(), input.readInt(), input.readInt(), input.readInt(), input.readInt());
+        this.top = input.readInt();
+        this.bottom = input.readInt();
+
+        int left = input.readInt();
+        int right = input.readInt();
+
+        int negLeft = Integer.MAX_VALUE;
+        int negRight = Integer.MIN_VALUE;
+        int posLeft = Integer.MAX_VALUE;
+        int posRight = Integer.MIN_VALUE;
+        if (left < 0 && right < 0) {
+            negLeft = left;
+            negRight = right;
+        } else if (left < 0) {
+            negLeft = negRight = left;
+            posLeft = posRight = right;
+        } else {
+            posLeft = left;
+            posRight = right;
+        }
+
+        this.negLeft = negLeft;
+        this.negRight = negRight;
+        this.posLeft = posLeft;
+        this.posRight = posRight;
     }
 
     /**
@@ -128,10 +152,8 @@ public int maxX() {
     public void writeTo(StreamOutput out) throws IOException {
         out.writeInt(top);
         out.writeInt(bottom);
-        out.writeInt(negLeft);
-        out.writeInt(negRight);
-        out.writeInt(posLeft);
-        out.writeInt(posRight);
+        out.writeInt(minX());
+        out.writeInt(maxX());
     }
 
     @Override