From 051be5c588b25b2d9d899ae89b195455007e3bb3 Mon Sep 17 00:00:00 2001
From: eguven <eguven@google.com>
Date: Thu, 17 Nov 2016 04:35:54 -0800
Subject: [PATCH] Use buffers to speed up cache index file io.

Use BufferedOutputStream and BufferedInputStream while writing / reading.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=139446039
---
 .../exoplayer2/upstream/cache/CachedContentIndex.java       | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/library/src/main/java/com/google/android/exoplayer2/upstream/cache/CachedContentIndex.java b/library/src/main/java/com/google/android/exoplayer2/upstream/cache/CachedContentIndex.java
index 47019b98a3..64863ac42b 100644
--- a/library/src/main/java/com/google/android/exoplayer2/upstream/cache/CachedContentIndex.java
+++ b/library/src/main/java/com/google/android/exoplayer2/upstream/cache/CachedContentIndex.java
@@ -21,6 +21,8 @@ import com.google.android.exoplayer2.upstream.cache.Cache.CacheException;
 import com.google.android.exoplayer2.util.Assertions;
 import com.google.android.exoplayer2.util.AtomicFile;
 import com.google.android.exoplayer2.util.Util;
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
 import java.io.DataInputStream;
 import java.io.DataOutputStream;
 import java.io.File;
@@ -207,7 +209,7 @@ import javax.crypto.spec.SecretKeySpec;
   private boolean readFile() {
     DataInputStream input = null;
     try {
-      InputStream inputStream = atomicFile.openRead();
+      InputStream inputStream = new BufferedInputStream(atomicFile.openRead());
       input = new DataInputStream(inputStream);
       int version = input.readInt();
       if (version != VERSION) {
@@ -254,7 +256,7 @@ import javax.crypto.spec.SecretKeySpec;
   private void writeFile() throws CacheException {
     DataOutputStream output = null;
     try {
-      OutputStream outputStream = atomicFile.startWrite();
+      OutputStream outputStream = new BufferedOutputStream(atomicFile.startWrite());
       output = new DataOutputStream(outputStream);
       output.writeInt(VERSION);