com.j256.simplezip

Class RewindableInputStream

java.lang.Object

java.io.InputStream

com.j256.simplezip.RewindableInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

public class RewindableInputStream
extends InputStream

Buffer that keeps around the last read bytes, allowing us to rewind the stream for a certain number of bytes. This is necessary because there are a couple of places where the stream is read ahead because of buffering and we need to rewind when done.

Author:

graywatson

Constructor Summary

Constructors

Constructor and Description
RewindableInputStream(InputStream delegate, int initialBufferSize)

Method Summary

Modifier and Type	Method and Description
void	close()
long	getByteCount() Return the number of bytes read using this stream.
int	read()
int	read(byte[] buffer)
int	read(byte[] outBuffer, int outOffset, int length)
void	rewind(int numBytes) Rewind the buffer a certain number of bytes.

Methods inherited from class java.io.InputStream

available, mark, markSupported, reset, skip

Methods inherited from class java.lang.Object

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

Constructor Detail

RewindableInputStream

public RewindableInputStream(InputStream delegate,
                             int initialBufferSize)

Method Detail

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException

read

public int read(byte[] buffer)
         throws IOException

Overrides:

read in class InputStream

Throws:

IOException

read

public int read(byte[] outBuffer,
                int outOffset,
                int length)
         throws IOException

Overrides:

read in class InputStream

Throws:

IOException

rewind

public void rewind(int numBytes)
            throws IOException

Rewind the buffer a certain number of bytes.

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

getByteCount

public long getByteCount()

Return the number of bytes read using this stream.