org.w3c.www.http
Class ChunkedOutputStream

java.lang.Object
  java.io.OutputStream
      java.io.FilterOutputStream
          java.io.DataOutputStream
              org.w3c.www.http.ChunkedOutputStream

All Implemented Interfaces:

java.io.Closeable, java.io.DataOutput, java.io.Flushable

public class ChunkedOutputStream
extends java.io.DataOutputStream

Field Summary

protected byte[]	bheader Internal buffer to hold chunk size.
protected byte[]	buffer The chunking buffer.
protected int	bufptr Where to put next piece of data (current chunk size).
protected int	chunksize The chunk size to use (defaults to buffer size).

Fields inherited from class java.io.DataOutputStream

written

Fields inherited from class java.io.FilterOutputStream

out

Constructor Summary

ChunkedOutputStream(byte[] buffer, java.io.DataOutputStream out)
Create a chunk encoder, using the provided buffer.

ChunkedOutputStream(java.io.DataOutputStream out)
Create a chunk encoder.

Method Summary

protected void	append(byte[] b, int off, int len) Append a bunch of bytes to current pending chunk.
protected void	append(int v) Append one byte to pending chunk.
void	close() Close that encoding stream.
void	close(boolean really) Close that encoding stream.
void	flush() Flush pending output.
protected void	sendChunk() Send current chunk of data.
protected void	sendChunk(byte[] b, int off, int len) Send given buffer as a full chunk.
protected void	sendClose() Send the close chunk.
void	write(byte[] b, int off, int len) Write an array of bytes.
void	write(int b) Write one byte of output.

Methods inherited from class java.io.DataOutputStream

size, writeBoolean, writeByte, writeBytes, writeChar, writeChars, writeDouble, writeFloat, writeInt, writeLong, writeShort, writeUTF

Methods inherited from class java.io.FilterOutputStream

write

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.io.DataOutput

write

Field Detail

buffer

protected byte[] buffer

The chunking buffer.

bufptr

protected int bufptr

Where to put next piece of data (current chunk size).

chunksize

protected int chunksize

The chunk size to use (defaults to buffer size).

bheader

protected byte[] bheader

Internal buffer to hold chunk size.

Constructor Detail

ChunkedOutputStream

public ChunkedOutputStream(byte[] buffer,
                           java.io.DataOutputStream out)

Create a chunk encoder, using the provided buffer.

Parameters:

buffer - The buffer to use (determines the default chunk size).

put - The DataOutputStream to write encoded data to.

ChunkedOutputStream

public ChunkedOutputStream(java.io.DataOutputStream out)

Create a chunk encoder.

Parameters:

out - The DataOutputStream to write to.

Method Detail

sendClose

protected void sendClose()
                  throws java.io.IOException

Send the close chunk.

Throws:

java.io.IOException

sendChunk

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

Send given buffer as a full chunk.

Parameters:

b - The buffer that contains the data to emit.

off - Offset of chunk in above buffer.

len - Length of chunk.

Throws:

java.io.IOException - If writing fails.

sendChunk

protected void sendChunk()
                  throws java.io.IOException

Send current chunk of data.

Throws:

java.io.IOException - If writing fails.

append

protected final void append(int v)
                     throws java.io.IOException

Append one byte to pending chunk.

Parameters:

v - The byte to append.

Throws:

java.io.IOException - If writing fails.

append

protected final void append(byte[] b,
                            int off,
                            int len)
                     throws java.io.IOException

Append a bunch of bytes to current pending chunk.

Parameters:

b - The chunk of bytes to add.

off - Offset of chunk within above buffer.

len - Length of chunk.

Throws:

java.io.IOException - If writing fails.

close

public void close()
           throws java.io.IOException

Close that encoding stream.

Specified by:

close in interface java.io.Closeable

Overrides:

close in class java.io.FilterOutputStream

Throws:

java.io.IOException - If writing fails.

close

public void close(boolean really)
           throws java.io.IOException

Close that encoding stream.

Throws:

java.io.IOException - If writing fails.

flush

public void flush()
           throws java.io.IOException

Flush pending output.

Specified by:

flush in interface java.io.Flushable

Overrides:

flush in class java.io.DataOutputStream

Throws:

java.io.IOException - If writing fails.

write

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

Write one byte of output.

Specified by:

write in interface java.io.DataOutput

Overrides:

write in class java.io.DataOutputStream

Parameters:

v - The byte to write.

Throws:

java.io.IOException - If writing fails.

write

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

Write an array of bytes.

Specified by:

write in interface java.io.DataOutput

Overrides:

write in class java.io.DataOutputStream

Parameters:

b - The data to write.

off - Offfset within above buffer.

len - Length of data to write.

Throws:

java.io.IOException - If writing fails.