规范maven项目结构并升级版本号(1.27-SNAPSHOT)

src/main/java/org/csource/fastdfs/DownloadCallback.java

@@ -0,0 +1,31 @@
+/**
+* Copyright (C) 2008 Happy Fish / YuQing
+*
+* FastDFS Java Client may be copied only under the terms of the GNU Lesser
+* General Public License (LGPL).
+* Please visit the FastDFS Home Page http://www.csource.org/ for more detail.
+*/
+
+package org.csource.fastdfs;
+
+import java.io.*;
+import java.util.*;
+import java.net.*;
+import org.csource.common.*;
+
+/**
+* Download file callback interface
+* @author Happy Fish / YuQing
+* @version Version 1.4
+*/
+public interface DownloadCallback
+{
+	/**
+	* recv file content callback function, may be called more than once when the file downloaded
+	* @param file_size file size
+	*	@param data data buff
+	* @param bytes data bytes
+	* @return 0 success, return none zero(errno) if fail
+	*/
+	public int recv(long file_size, byte[] data, int bytes);
+}