com.htyleo.extsort.common

Class RandomAccessFileInputStream

java.lang.Object

java.io.InputStream

com.htyleo.extsort.common.RandomAccessFileInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

public class RandomAccessFileInputStream
extends InputStream

An InputStream wrapper of RandomAccessFile. The stream corresponds to only part of the file.

Author:

htyleo

Constructor Summary

Constructors

Constructor and Description
RandomAccessFileInputStream(File file, long begin, long end) Create a RandomAccessFileInputStream

Method Summary

Modifier and Type	Method and Description
int	available()
void	close()
int	read()
int	read(byte[] b, int off, int len)

Methods inherited from class java.io.InputStream

mark, markSupported, read, reset, skip

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RandomAccessFileInputStream

public RandomAccessFileInputStream(File file,
                                   long begin,
                                   long end)
                            throws IOException

Create a RandomAccessFileInputStream

Parameters:

file - source file

begin - the beginning position of the file, inclusive

end - the end position of the file, exclusive

Throws:

IOException - If an I/O error occurs

Method Detail

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException

read

public int read(byte[] b,
                int off,
                int len)
         throws IOException

Overrides:

read in class InputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class InputStream

Throws:

IOException

available

public int available()
              throws IOException

Overrides:

available in class InputStream

Throws:

IOException