外排序之多路归并的java实现

外排序--基于败者树的多路归并排序算法的java实现

package ls;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;

public class FileUtils {

	
	public static InputStreamHolder getInputStreamHolder（String fileName int bufferSize） throws FileNotFoundException{
		InputStreamHolder holder = new InputStreamHolder（）;
		FileInputStream fileInputStream = new FileInputStream（fileName）;
		BufferedInputStream bufferedInputStream = new BufferedInputStream（
				fileInputStream bufferSize）;
		DataInputStream dataInputStream = new DataInputStream（
				bufferedInputStream）;

		holder.setFileInputStream（fileInputStream）;
		holder.setBufferedInputStream（bufferedInputStream）;
		holder.setDataInputStream（dataInputStream）;
		return holder;
	}
	public static InputStreamHolder getInputStreamHolder（File file int bufferSize） throws FileNotFoundException{
		InputStreamHolder holder = new InputStreamHolder（）;
		FileInputStream fileInputStream = new FileInputStream（file）;
		BufferedInputStream bufferedInputStream = new BufferedInputStream（
				fileInputStream bufferSize）;
		DataInputStream dataInputStream = new DataInputStream（
				bufferedInputStream）;

		holder.setFileInputStream（fileInputStream）;
		holder.setBufferedInputStream（bufferedInputStream）;
		holder.setDataInputStream（dataInputStream）;
		
		
		return holder;
	}
	
	public static OutputStreamHolder getOutputStreamHolder（File file） throws FileNotFoundException{
		OutputStreamHolder holder = new OutputStreamHolder（）;
		FileOutputStream fileOutputStream = new FileOutputStream（file）;
		BufferedOutputStream bufferedOutputStream = new BufferedOutputStream（fileOutputStream）;
		DataOutputStream dataOutputStream = new DataOutputStream（bufferedOutputStream）;
		holder.setFileOutputStream（fileOutputStream）;
		holder.setBufferedOutputStream（bufferedOutputStream）;
		holder.setDataOutputStream（dataOutputStream）;
		return holder;
	}
	public static OutputStreamHolder getOutputStreamHolder（String fileName） throws FileNotFoundException{
		OutputStreamHolder holder = new OutputStreamHolder（）;
		FileOutputStream fileOutputStream = new FileOutputStream（fileName）;
		BufferedOutputStream bufferedOutputStream = new BufferedOutputStream（fileOutputStream）;
		DataOutputStream dataOutputStream = new DataOutputStream（bufferedOutputStream）;
		holder.setFileOutputStream（fileOutputStream）;
		holder.setBufferedOutputStream（bufferedOutputStream）;
		holder.setDataOutputStream（dataOutputStream）;
		return holder;
	}
}

 属性            大小     日期    时间   名称
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     文件       2686  2015-04-21 16:57  外排序之多路归并\FileUtils.java

     文件        913  2015-04-21 16:42  外排序之多路归并\InputStreamHolder.java

     文件       7571  2015-04-21 17:13  外排序之多路归并\MultipleMerge.java

     文件        948  2015-04-21 16:53  外排序之多路归并\OutputStreamHolder.java

     文件        388  2015-04-21 14:08  外排序之多路归并\Result.java

     目录          0  2015-04-21 17:47  外排序之多路归并

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