edu.mit.jverbnet.util
Class ByteBufferInputStream

java.lang.Object
  java.io.InputStream
      edu.mit.jverbnet.util.ByteBufferInputStream

All Implemented Interfaces:

java.io.Closeable

public class ByteBufferInputStream
extends java.io.InputStream

Adapts a ByteBuffer to an InputStream.

Since:

JVerbnet 1.0.0

Version:

1.2.0

Author:

Mark A. Finlayson

Field Summary

protected java.nio.ByteBuffer	buffer
protected int	mark
protected java.io.RandomAccessFile	raFile

Constructor Summary

ByteBufferInputStream(java.nio.ByteBuffer buffer)
Creates a new input stream that wraps the specified byte buffer.

ByteBufferInputStream(java.io.File file)
Creates a new input stream that wraps the a byte buffer attached to the specified file.

Method Summary

int	available()
protected void	checkBuffer() Throws an exception if the stream has been closed
void	close()
void	mark(int readlimit)
boolean	markSupported()
int	read()
int	read(byte[] b)
int	read(byte[] b, int off, int len)
void	reset()
long	skip(long n)

Methods inherited from class java.lang.Object

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

Field Detail

buffer

protected java.nio.ByteBuffer buffer

raFile

protected java.io.RandomAccessFile raFile

mark

protected int mark

Constructor Detail

ByteBufferInputStream

public ByteBufferInputStream(java.nio.ByteBuffer buffer)

Creates a new input stream that wraps the specified byte buffer.

Parameters:

buffer - the byte buffer to be wrapped; may not be null

Throws:

java.lang.NullPointerException - if the specified buffer is null

Since:

JVerbnet 1.0.0

ByteBufferInputStream

public ByteBufferInputStream(java.io.File file)
                      throws java.io.IOException

Creates a new input stream that wraps the a byte buffer attached to the specified file.

Parameters:

file - the file on which the stream should be opened; may not be null

Throws:

java.lang.NullPointerException - if the specified file is null

java.io.IOException

Since:

JVerbnet 1.0.0

Method Detail

checkBuffer

protected void checkBuffer()
                    throws java.io.IOException

Throws an exception if the stream has been closed

Throws:

java.io.IOException - if the stream has been closed

Since:

JVerbnet 1.0.0

read

public int read()
         throws java.io.IOException

Specified by:

read in class java.io.InputStream

Throws:

java.io.IOException

read

public int read(byte[] b)
         throws java.io.IOException

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

read

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

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

skip

public long skip(long n)
          throws java.io.IOException

Overrides:

skip in class java.io.InputStream

Throws:

java.io.IOException

available

public int available()
              throws java.io.IOException

Overrides:

available in class java.io.InputStream

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Overrides:

close in class java.io.InputStream

Throws:

java.io.IOException

mark

public void mark(int readlimit)

Overrides:

mark in class java.io.InputStream

reset

public void reset()
           throws java.io.IOException

Overrides:

reset in class java.io.InputStream

Throws:

java.io.IOException

markSupported

public boolean markSupported()

Overrides:

markSupported in class java.io.InputStream