com.caucho.server.http

Class ToByteResponseStream

java.lang.Object

java.io.OutputStream

com.caucho.vfs.OutputStreamWithBuffer

com.caucho.server.http.AbstractResponseStream

com.caucho.server.http.ToByteResponseStream

All Implemented Interfaces:

ByteAppendable, java.io.Closeable, java.io.Flushable, java.lang.AutoCloseable

Direct Known Subclasses:

FilterWrapperResponseStream, IncludeResponseStream2, ResponseStream, StreamWrapperResponseStream

public abstract class ToByteResponseStream
extends AbstractResponseStream

Handles the dual char/byte buffering for the response stream.

Field Summary

Fields

Modifier and Type	Field and Description
protected static int	SIZE

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ToByteResponseStream()

Method Summary

Modifier and Type	Method and Description
void	clearBuffer() Clears the response buffer.
protected void	closeImpl() Closes the response stream.
void	flush() Flushes the buffered response to the output stream.
void	flushBuffer() Flushes the buffer.
protected void	flushByteBuffer() Flushes the buffered response to the output stream.
protected void	flushCharBuffer() Converts the char buffer.
byte[]	getBuffer() Returns the byte buffer.
protected int	getBufferLength() Returns the data in the buffer
int	getBufferOffset() Returns the byte offset.
int	getBufferSize() Returns the buffer capacity.
int	getByteBufferOffset() Returns the byte offset.
char[]	getCharBuffer() Returns the char buffer.
int	getCharOffset() Returns the char offset.
int	getContentLength() Returns the written content length
int	getRemaining() Returns the remaining value left.
boolean	isCauchoResponseStream() Returns true for a caucho response stream.
protected boolean	isCharFlushing() True while the char buffer is being flushed, needed for content-length vs chunked headers.
protected boolean	isDisableAutoFlush()
byte[]	nextBuffer(int offset) Returns the next byte buffer.
char[]	nextCharBuffer(int offset) Converts the char buffer.
void	print(char[] buffer, int offset, int length) Writes a char array to the output.
void	print(int ch) Writes a character to the output.
void	setBufferOffset(int offset) Sets the byte offset.
void	setBufferSize(int size) Sets the buffer capacity.
void	setCharOffset(int offset) Sets the char offset.
void	setEncoding(java.lang.String encoding) Sets the encoding.
protected boolean	setFlush(boolean isAllowFlush)
void	setLocale(java.util.Locale locale) Sets the locale.
void	setOutputStreamOnly(boolean isOutputStreamOnly) Set true for output stream only request.
void	start() Initializes the Buffered Response stream at the beginning of a request.
void	write(byte[] buffer, int offset, int length) Writes a chunk of bytes to the stream.
void	write(int ch) Writes a byte to the output.
protected void	writeHeaders(int length) Writes any http headers.
protected abstract void	writeNext(byte[] buffer, int offset, int length, boolean isEnd) Writes the chunk to the downward stream.

Methods inherited from class com.caucho.server.http.AbstractResponseStream

clear, close, completeCache, flushByte, flushChar, flushNext, getByteCacheStream, getCharCacheStream, getEncoding, isAutoFlush, isCloseComplete, isClosed, isClosing, isCommitted, isHead, killCaching, sendFile, setAutoFlush, setByteCacheStream, setCauchoResponse, setCharCacheStream, setCommitted, setHead, toClosing, toString

Methods inherited from class java.io.OutputStream

write

Methods inherited from class java.lang.Object

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

Field Detail

SIZE

protected static final int SIZE

Constructor Detail

ToByteResponseStream

protected ToByteResponseStream()

Method Detail

start

public void start()

Initializes the Buffered Response stream at the beginning of a request.

Overrides:

start in class AbstractResponseStream

isCauchoResponseStream

public boolean isCauchoResponseStream()

Returns true for a caucho response stream.

Specified by:

isCauchoResponseStream in class AbstractResponseStream

setOutputStreamOnly

public void setOutputStreamOnly(boolean isOutputStreamOnly)

Description copied from class: AbstractResponseStream

Set true for output stream only request.

Overrides:

setOutputStreamOnly in class AbstractResponseStream

setFlush

protected boolean setFlush(boolean isAllowFlush)

setEncoding

public void setEncoding(java.lang.String encoding)
                 throws java.io.UnsupportedEncodingException

Sets the encoding.

Overrides:

setEncoding in class AbstractResponseStream

Throws:

java.io.UnsupportedEncodingException

setLocale

public void setLocale(java.util.Locale locale)
               throws java.io.UnsupportedEncodingException

Sets the locale.

Overrides:

setLocale in class AbstractResponseStream

Throws:

java.io.UnsupportedEncodingException

getCharBuffer

public final char[] getCharBuffer()

Returns the char buffer.

Specified by:

getCharBuffer in class AbstractResponseStream

getCharOffset

public int getCharOffset()
                  throws java.io.IOException

Returns the char offset.

Specified by:

getCharOffset in class AbstractResponseStream

Throws:

java.io.IOException

setCharOffset

public void setCharOffset(int offset)
                   throws java.io.IOException

Sets the char offset.

Specified by:

setCharOffset in class AbstractResponseStream

Throws:

java.io.IOException

getBuffer

public byte[] getBuffer()
                 throws java.io.IOException

Returns the byte buffer.

Specified by:

getBuffer in class OutputStreamWithBuffer

Throws:

java.io.IOException

getBufferOffset

public int getBufferOffset()
                    throws java.io.IOException

Returns the byte offset.

Specified by:

getBufferOffset in class OutputStreamWithBuffer

Throws:

java.io.IOException

getByteBufferOffset

public int getByteBufferOffset()
                        throws java.io.IOException

Returns the byte offset.

Throws:

java.io.IOException

setBufferOffset

public void setBufferOffset(int offset)
                     throws java.io.IOException

Sets the byte offset.

Specified by:

setBufferOffset in class OutputStreamWithBuffer

Throws:

java.io.IOException

getBufferSize

public int getBufferSize()

Returns the buffer capacity.

Specified by:

getBufferSize in class AbstractResponseStream

setBufferSize

public void setBufferSize(int size)

Sets the buffer capacity.

Specified by:

setBufferSize in class AbstractResponseStream

getRemaining

public int getRemaining()

Returns the remaining value left.

Specified by:

getRemaining in class AbstractResponseStream

getBufferLength

protected int getBufferLength()

Returns the data in the buffer

isDisableAutoFlush

protected boolean isDisableAutoFlush()

clearBuffer

public void clearBuffer()

Clears the response buffer.

Specified by:

clearBuffer in class AbstractResponseStream

write

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

Writes a byte to the output.

Specified by:

write in interface ByteAppendable

Specified by:

write in class AbstractResponseStream

Throws:

java.io.IOException

write

public void write(byte[] buffer,
                  int offset,
                  int length)
           throws java.io.IOException

Writes a chunk of bytes to the stream.

Specified by:

write in interface ByteAppendable

Specified by:

write in class AbstractResponseStream

Throws:

java.io.IOException

print

public void print(int ch)
           throws java.io.IOException

Writes a character to the output.

Specified by:

print in class AbstractResponseStream

Throws:

java.io.IOException

print

public void print(char[] buffer,
                  int offset,
                  int length)
           throws java.io.IOException

Writes a char array to the output.

Specified by:

print in class AbstractResponseStream

Throws:

java.io.IOException

nextCharBuffer

public char[] nextCharBuffer(int offset)
                      throws java.io.IOException

Converts the char buffer.

Specified by:

nextCharBuffer in class AbstractResponseStream

Throws:

java.io.IOException

isCharFlushing

protected boolean isCharFlushing()

True while the char buffer is being flushed, needed for content-length vs chunked headers.

flushCharBuffer

protected void flushCharBuffer()
                        throws java.io.IOException

Converts the char buffer.

Throws:

java.io.IOException

getContentLength

public int getContentLength()

Description copied from class: AbstractResponseStream

Returns the written content length

Overrides:

getContentLength in class AbstractResponseStream

nextBuffer

public byte[] nextBuffer(int offset)
                  throws java.io.IOException

Returns the next byte buffer.

Specified by:

nextBuffer in class OutputStreamWithBuffer

Returns:

the next buffer

Throws:

java.io.IOException

flushByteBuffer

protected void flushByteBuffer()
                        throws java.io.IOException

Flushes the buffered response to the output stream.

Throws:

java.io.IOException

writeHeaders

protected void writeHeaders(int length)
                     throws java.io.IOException

Writes any http headers. Because this may be called multiple times, the implementation needs to ensure the header is written once

Parameters:

length - the current buffer length

Throws:

java.io.IOException

writeNext

protected abstract void writeNext(byte[] buffer,
                                  int offset,
                                  int length,
                                  boolean isEnd)
                           throws java.io.IOException

Writes the chunk to the downward stream.

Throws:

java.io.IOException

flushBuffer

public void flushBuffer()
                 throws java.io.IOException

Flushes the buffer.

Specified by:

flushBuffer in class AbstractResponseStream

Throws:

java.io.IOException

flush

public void flush()
           throws java.io.IOException

Flushes the buffered response to the output stream.

Specified by:

flush in interface java.io.Flushable

Overrides:

flush in class AbstractResponseStream

Throws:

java.io.IOException

closeImpl

protected void closeImpl()
                  throws java.io.IOException

Closes the response stream.

Overrides:

closeImpl in class AbstractResponseStream

Throws:

java.io.IOException