From a91686a7e16ebbf44b2d9f68301577643f05fd2e Mon Sep 17 00:00:00 2001
From: Looly <loolly@gmail.com>
Date: Fri, 16 Aug 2019 19:47:59 +0800
Subject: [PATCH] add default buffer size

---
 CHANGELOG.md                                        |  1 +
 .../src/main/java/cn/hutool/core/io/IoUtil.java     | 12 ++++++------
 .../src/test/java/cn/hutool/core/io/IoUtilTest.java | 13 +++++++++++++
 3 files changed, 20 insertions(+), 6 deletions(-)
 create mode 100644 hutool-core/src/test/java/cn/hutool/core/io/IoUtilTest.java

diff --git a/CHANGELOG.md b/CHANGELOG.md
index ff3c487fd..12e542bc9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,6 +18,7 @@
 * 【setting】      构造Setting增加默认字符编码
 * 【extra】        ServletUtil增加getHeaderMap方法
 * 【poi】           CellUtil改进数字支持，解决空指针问题（pr#489@Github）
+* 【core】         增加DEFAULT_BUFFER_SIZE
 
 ### Bug修复
 * 【cache】       修复missCount规则（issue#465@Github）
diff --git a/hutool-core/src/main/java/cn/hutool/core/io/IoUtil.java b/hutool-core/src/main/java/cn/hutool/core/io/IoUtil.java
index a4fce6fc4..b8282dec7 100644
--- a/hutool-core/src/main/java/cn/hutool/core/io/IoUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/core/io/IoUtil.java
@@ -51,12 +51,12 @@ import cn.hutool.core.util.StrUtil;
  */
 public class IoUtil {
 
-	/** 默认缓存大小 */
-	public static final int DEFAULT_BUFFER_SIZE = 2048;
-	/** 默认中等缓存大小 */
-	public static final int DEFAULT_MIDDLE_BUFFER_SIZE = 4096;
-	/** 默认大缓存大小 */
-	public static final int DEFAULT_LARGE_BUFFER_SIZE = 8192;
+	/** 默认缓存大小 8192*/
+	public static final int DEFAULT_BUFFER_SIZE = 2 << 12;
+	/** 默认中等缓存大小 16384*/
+	public static final int DEFAULT_MIDDLE_BUFFER_SIZE = 2 << 13;
+	/** 默认大缓存大小 32768*/
+	public static final int DEFAULT_LARGE_BUFFER_SIZE = 2 << 14;
 
 	/** 数据流末尾 */
 	public static final int EOF = -1;
diff --git a/hutool-core/src/test/java/cn/hutool/core/io/IoUtilTest.java b/hutool-core/src/test/java/cn/hutool/core/io/IoUtilTest.java
new file mode 100644
index 000000000..6b8543d79
--- /dev/null
+++ b/hutool-core/src/test/java/cn/hutool/core/io/IoUtilTest.java
@@ -0,0 +1,13 @@
+package cn.hutool.core.io;
+
+import org.junit.Test;
+
+import cn.hutool.core.lang.Console;
+
+public class IoUtilTest {
+	
+	@Test
+	public void moveTest() {
+		Console.log(2 << 14);
+	}
+}