org.neo.swarm.util.io
Class ByteBufferInputStream

java.lang.Object
  java.io.InputStream
      org.neo.swarm.util.io.ByteBufferInputStream

public class ByteBufferInputStream

extends java.io.InputStream

Provides an interface between ByteBuffers and StreamCallback to use nbio and fill an internal user buffer.

Author:

navery

Constructor Summary

ByteBufferInputStream(int headerSize, int footerSize, java.nio.ByteBuffer buffer, StreamCallback callback)
We expect the header and footer value to match packet formation, i.e.

Method Summary

int	available()
byte[]	getContent() Reuses buffer to fill the users databuffer
byte[]	getFooterBuffer()
byte[]	getHeaderBuffer()
int	read()
int	read(byte[] bytes, int off, int len)

Methods inherited from class java.io.InputStream

close, 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

ByteBufferInputStream

public ByteBufferInputStream(int headerSize,
                             int footerSize,
                             java.nio.ByteBuffer buffer,
                             StreamCallback callback)
                      throws java.io.IOException

We expect the header and footer value to match packet formation, i.e. header size = 7 bytes + 4 bytes datasize buffer is of arbitrary size and used to multiread into a known user buffer

Parameters:

buffer -

callback -

Method Detail

read

public int read()
         throws java.io.IOException

Throws:

java.io.IOException

getContent

public byte[] getContent()

Reuses buffer to fill the users databuffer

Returns:

byte[]

read

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

Throws:

java.io.IOException

getHeaderBuffer

public byte[] getHeaderBuffer()

Returns:

Returns the headerBuffer.

getFooterBuffer

public byte[] getFooterBuffer()

Returns:

Returns the footerBuffer.

available

public int available()
              throws java.io.IOException

Returns:

number of bytes available

Throws:

java.io.IOException