将本地文件复制到复制到Hadoop文件系统

//目前，其他Hadoop文件系统写入文件时均不调用progress()方法。

package com;

import java.io.BufferedInputStream;

import java.io.FileInputStream;

import java.io.InputStream;

import java.io.OutputStream;

import java.net.URI;

import org.apache.hadoop.conf.Configuration;

import org.apache.hadoop.fs.FileSystem;

import org.apache.hadoop.fs.Path;

import org.apache.hadoop.io.IOUtils;

import org.apache.hadoop.util.Progressable;

public class FileCopyWithProgress {

public static void main(String[] args) throws Exception{

String localSrc = args[0];

String dst = args[1];

InputStream in = new BufferedInputStream(new FileInputStream(localSrc));

Configuration conf = new Configuration();

FileSystem fs = FileSystem.get(URI.create(dst), conf);

OutputStream out = fs.create(new Path(dst), new Progressable(){

public void progress(){

System.out.println(".");

}

});

IOUtils.copyBytes(in, out, 4096, true);

}