net.sf.mmm.util.io.impl
Class ProcessableDetectorOutputStream.WrapperOutputStream

java.lang.Object
  java.io.OutputStream
      net.sf.mmm.util.io.impl.ProcessableDetectorOutputStream.WrapperOutputStream

All Implemented Interfaces:

Closeable, Flushable, DetectorStreamProcessor

Enclosing class:

ProcessableDetectorOutputStream

protected class ProcessableDetectorOutputStream.WrapperOutputStream
extends OutputStream
implements DetectorStreamProcessor

This inner class is the actual wrapper stream.

See Also:

ProcessableDetectorOutputStream.getStream()

Field Summary

private byte[]	bytes An array of buffered bytes or null.
private int	count The number of bytes buffered in bytes.
private OutputStream	delegate The delegate adapted by this wrapper.

Constructor Summary

ProcessableDetectorOutputStream.WrapperOutputStream(OutputStream outputStream)
The constructor.

Method Summary

void	close()
void	flush()
private void	flushBuffer() This method flushes the internal buffer.
void	process(DetectorStreamBuffer buffer, Map<String,Object> metadata, boolean eos) This method performs the actual detection and optionally manipulates the data.
void	write(byte[] b)
void	write(byte[] b, int off, int len)
void	write(int b)

Methods inherited from class java.lang.Object

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

Field Detail

delegate

private final OutputStream delegate

The delegate adapted by this wrapper.

bytes

private byte[] bytes

An array of buffered bytes or null.

count

private int count

The number of bytes buffered in bytes.

Constructor Detail

ProcessableDetectorOutputStream.WrapperOutputStream

public ProcessableDetectorOutputStream.WrapperOutputStream(OutputStream outputStream)

The constructor.

Parameters:

outputStream - is the OutputStream to adapt.

Method Detail

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Overrides:

close in class OutputStream

Throws:

IOException

flush

public void flush()
           throws IOException

Specified by:

flush in interface Flushable

Overrides:

flush in class OutputStream

Throws:

IOException

flushBuffer

private void flushBuffer()
                  throws IOException

This method flushes the internal buffer.

Throws:

IOException - if the underlying OutputStream caused such exception.

write

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

Overrides:

write in class OutputStream

Throws:

IOException

write

public void write(byte[] b)
           throws IOException

Overrides:

write in class OutputStream

Throws:

IOException

write

public void write(int b)
           throws IOException

Specified by:

write in class OutputStream

Throws:

IOException

process

public void process(DetectorStreamBuffer buffer,
                    Map<String,Object> metadata,
                    boolean eos)
             throws IOException

This method performs the actual detection and optionally manipulates the data. All this happens via the given buffer that provides access to read buffered parts of the stream. As streams are typically larger pieces of data, this method will be called repetitive in order to process the entire stream.
ATTENTION:
A legal implementation of this interface has to consume data from the given buffer whenever it is invoked. To ensure your implementation can always make an appropriate decision it may have to ensure a specific lookahead.

Specified by:

process in interface DetectorStreamProcessor

Parameters:

buffer - allows you to read parts of the streamed data as well as to manipulate the data.

metadata - is the Map with the meta-data.

eos - - true if the end of the stream has been reached and the given buffer has to be

Throws:

IOException - in case of an Input/Output error. Should only be used internally.