com.aliyun.odps.storage.internal.io

Class RepeatableFileInputStream

java.lang.Object

java.io.InputStream

com.aliyun.odps.storage.internal.io.RepeatableFileInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

Direct Known Subclasses:

DiskSpillingInputStream

public class RepeatableFileInputStream
extends InputStream

A repeatable input stream that can reset to a marked position.

This class extends InputStream and provides the ability to mark a position and reset back to that position. It wraps a FileInputStream and uses a FileChannel to manage the position marking and resetting.

Constructor Summary

Constructors

Constructor and Description
RepeatableFileInputStream(File file)
RepeatableFileInputStream(FileInputStream fis)
RepeatableFileInputStream(FileInputStream fis, File file)

Method Summary

Modifier and Type	Method and Description
int	available()
void	close()
File	getFile()
InputStream	getWrappedInputStream()
void	mark(int readlimit)
boolean	markSupported()
int	read()
int	read(byte[] b, int off, int len)
void	reset()
long	skip(long n)

Methods inherited from class java.io.InputStream

read

Methods inherited from class java.lang.Object

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

Constructor Detail

RepeatableFileInputStream

public RepeatableFileInputStream(File file)
                          throws IOException

Throws:

IOException

RepeatableFileInputStream

public RepeatableFileInputStream(FileInputStream fis)
                          throws IOException

Throws:

IOException

RepeatableFileInputStream

public RepeatableFileInputStream(FileInputStream fis,
                                 File file)
                          throws IOException

Throws:

IOException

Method Detail

reset

public void reset()
           throws IOException

Overrides:

reset in class InputStream

Throws:

IOException

markSupported

public boolean markSupported()

Overrides:

markSupported in class InputStream

mark

public void mark(int readlimit)

Overrides:

mark in class InputStream

available

public int available()
              throws IOException

Overrides:

available 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

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException

skip

public long skip(long n)
          throws IOException

Overrides:

skip in class InputStream

Throws:

IOException

read

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

Overrides:

read in class InputStream

Throws:

IOException

getWrappedInputStream

public InputStream getWrappedInputStream()

getFile

public File getFile()