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org.mortbay.http
Class NullableOutputStream  

java.lang.Object
  java.io.OutputStream
      java.io.FilterOutputStream
          org.mortbay.http.NullableOutputStream

All Implemented Interfaces:

HttpMessage.HeaderWriter

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public class NullableOutputStream

extends java.io.FilterOutputStream

implements HttpMessage.HeaderWriter

Buffered Output Stream. Uses ByteBufferOutputStream to allow pre and post writes.

Version:

$Revision: 1.4 $

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Field Summary
private  boolean	_closed
private  int	_headerReserve
private  org.mortbay.util.ByteArrayISO8859Writer	_httpMessageWriter
private  boolean	_nulled
private static org.apache.commons.logging.Log	log

 

Fields inherited from class java.io.FilterOutputStream

out

 

Constructor Summary

NullableOutputStream(java.io.OutputStream outputStream, int headerReserve)

 

Method Summary
void	close()           Close the stream.
void	destroy()
void	flush()           This method attempt to flush all buffered output to be written to the underlying output sink.
boolean	isNullOutput()           is the output Nulled?
void	nullOutput()           Null the output.
void	resetStream()
void	write(byte[] b)           This method writes all the bytes in the specified array to the underlying OutputStream.
void	write(byte[] b, int off, int len)           This method calls the write(int) method len times for all bytes from the array buf starting at index offset.
void	write(int b)           This method writes a single byte of output to the underlying OutputStream.
void	writeHeader(HttpMessage httpMessage)

 

Methods inherited from class java.lang.Object

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

 

Field Detail

log

private static org.apache.commons.logging.Log log

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_httpMessageWriter

private org.mortbay.util.ByteArrayISO8859Writer _httpMessageWriter

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_nulled

private boolean _nulled

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_closed

private boolean _closed

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_headerReserve

private int _headerReserve

Constructor Detail

NullableOutputStream

public NullableOutputStream(java.io.OutputStream outputStream,
                            int headerReserve)

Method Detail

nullOutput

public void nullOutput()
                throws java.io.IOException

Null the output. All output written is discarded until the stream is reset. Used for HEAD requests.

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isNullOutput

public boolean isNullOutput()
                     throws java.io.IOException

is the output Nulled?

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writeHeader

public void writeHeader(HttpMessage httpMessage)
                 throws java.io.IOException

Specified by:

writeHeader in interface HttpMessage.HeaderWriter

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resetStream

public void resetStream()

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destroy

public void destroy()

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write

public void write(int b)
           throws java.io.IOException

Description copied from class: java.io.FilterOutputStream

This method writes a single byte of output to the underlying OutputStream.

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write

public void write(byte[] b)
           throws java.io.IOException

Description copied from class: java.io.FilterOutputStream

This method writes all the bytes in the specified array to the underlying OutputStream. It does this by calling the three parameter version of this method - write(byte[], int, int) in this class instead of writing to the underlying OutputStream directly. This allows most subclasses to avoid overriding this method.

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write

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

Description copied from class: java.io.FilterOutputStream

This method calls the write(int) method len times for all bytes from the array buf starting at index offset. Subclasses should overwrite this method to get a more efficient implementation.

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flush

public void flush()
           throws java.io.IOException

Description copied from class: java.io.FilterOutputStream

This method attempt to flush all buffered output to be written to the underlying output sink.

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close

public void close()
           throws java.io.IOException

Close the stream.

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