From 1584e0db7509f4f079526d7c5e5f3c0bba8bbd0e Mon Sep 17 00:00:00 2001
From: Simon Webb <simon.webb@dunnhumby.com>
Date: Thu, 5 Nov 2015 11:24:41 +0000
Subject: [PATCH] Added override for bulk-read variant of InputStream.read() in
 anonymous inner class created by
 Dockerfile.ScannedResult.buildDockerFolderTar(). This fixes an IO performance
 issue that occurs when only the single-byte variant of the read() method on
 InputStream is overriden.

---
 .../com/github/dockerjava/core/dockerfile/Dockerfile.java    | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/main/java/com/github/dockerjava/core/dockerfile/Dockerfile.java b/src/main/java/com/github/dockerjava/core/dockerfile/Dockerfile.java
index 9c8ef428d..38f40fc7a 100644
--- a/src/main/java/com/github/dockerjava/core/dockerfile/Dockerfile.java
+++ b/src/main/java/com/github/dockerjava/core/dockerfile/Dockerfile.java
@@ -142,6 +142,11 @@ public int read() throws IOException {
                         return tarInputStream.read();
                     }
 
+                    @Override
+                    public int read(byte [] buff, int offset, int len) throws IOException {
+                        return tarInputStream.read(buff, offset, len);
+                    }
+
                     @Override
                     public void close() throws IOException {
                         IOUtils.closeQuietly(tarInputStream);