org.blinkenbyte.io
Class ReadWriteDevice.RWDInputStream

java.lang.Object
  java.io.InputStream
      org.blinkenbyte.io.ReadWriteDevice.RWDInputStream

All Implemented Interfaces:

java.io.Closeable

Enclosing interface:

ReadWriteDevice

public static class ReadWriteDevice.RWDInputStream
extends java.io.InputStream

Implementation of an InputStream wrapped around a ReadWriteDevice.

Field Summary

protected boolean	isClosed Flag indicating if this stream has been closed.
ReadWriteDevice	rwd The ReadWriteDevice being wrapped.

Constructor Summary

ReadWriteDevice.RWDInputStream(ReadWriteDevice _rwd)
Constructs a new RWDInputStream from a ReadWriteDevice.

Method Summary

int	available() Returns the number of bytes available to be read without blocking.
void	close() Closes this stream (but not the underlying ReadWriteDevice).
void	mark(int readLimit) Marks the input stream.
boolean	markSupported() Returns whether the ReadWriteDevice being wrapped supports mark.
int	read() Reads a byte from the underlying ReadWriteDevice.
int	read(byte[] b) Reads up to b.length bytes from the device into array b.
int	read(byte[] b, int offset, int len) Reads up to len bytes from the device into array b at b[offset].
void	reset() Resets the stream to the mark.
long	skip(long n) Skips n bytes from the stream.
protected void	throwIfClosed() Convenience method to throw an exception if the stream has been closed.

Methods inherited from class java.lang.Object

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

Field Detail

rwd

public ReadWriteDevice rwd

The ReadWriteDevice being wrapped.

isClosed

protected boolean isClosed

Flag indicating if this stream has been closed.

Constructor Detail

ReadWriteDevice.RWDInputStream

public ReadWriteDevice.RWDInputStream(ReadWriteDevice _rwd)

Constructs a new RWDInputStream from a ReadWriteDevice.

Method Detail

throwIfClosed

protected void throwIfClosed()
                      throws java.io.IOException

Convenience method to throw an exception if the stream has been closed.

Throws:

java.io.IOException

available

public int available()
              throws java.io.IOException

Returns the number of bytes available to be read without blocking.

Overrides:

available in class java.io.InputStream

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Closes this stream (but not the underlying ReadWriteDevice).

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)

Marks the input stream.

Overrides:

mark in class java.io.InputStream

markSupported

public boolean markSupported()

Returns whether the ReadWriteDevice being wrapped supports mark.

Overrides:

markSupported in class java.io.InputStream

read

public int read()
         throws java.io.IOException

Reads a byte from the underlying ReadWriteDevice. Returns -1 if end-of-stream.

Specified by:

read in class java.io.InputStream

Throws:

java.io.IOException

read

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

Reads up to b.length bytes from the device into array b. Returns the number of bytes read, -1 if currently at end-of-stream.

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

read

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

Reads up to len bytes from the device into array b at b[offset]. Returns the number of bytes read, -1 if currently at end-of-stream.

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

reset

public void reset()
           throws java.io.IOException

Resets the stream to the mark.

Overrides:

reset in class java.io.InputStream

Throws:

java.io.IOException

skip

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

Skips n bytes from the stream.

Overrides:

skip in class java.io.InputStream

Throws:

java.io.IOException