com.caucho.quercus.lib.zlib
Class ZlibOutputStream

java.lang.Object
  java.io.OutputStream
      com.caucho.quercus.lib.file.AbstractBinaryOutput
          com.caucho.quercus.lib.zlib.ZlibOutputStream

All Implemented Interfaces:

BinaryOutput, BinaryStream, java.io.Closeable, java.io.Flushable

public class ZlibOutputStream
extends AbstractBinaryOutput

As opposed to java's GZIPOutputStream, this class allows for more control on what is written to the underlying OutputStream.

See Also:

GZIPOutputStream

Field Summary

Fields inherited from interface com.caucho.quercus.lib.file.BinaryStream

SEEK_CUR, SEEK_END, SEEK_SET

Constructor Summary

ZlibOutputStream(java.io.OutputStream os)

ZlibOutputStream(java.io.OutputStream os, int compressionLevel, int strategy)

ZlibOutputStream(java.io.OutputStream os, int compressionLevel, int strategy, int encodingMode)

Method Summary

void	close() Closes the stream.
void	closeWrite() Closes the file.
void	flush() Flushes the output.
long	getPosition() Tells the position in the gzip stream
boolean	isEOF() Returns false always for a write stream.
boolean	setPosition(long offset) Sets the position.
java.lang.String	toString()
void	write(byte[] buffer, int offset, int length) Writes a buffer.
void	write(int v) Writes a byte.

Methods inherited from class com.caucho.quercus.lib.file.AbstractBinaryOutput

getOutputStream, getResourceType, print, print, seek, stat, write

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

Constructor Detail

ZlibOutputStream

public ZlibOutputStream(java.io.OutputStream os,
                        int compressionLevel,
                        int strategy,
                        int encodingMode)
                 throws java.io.IOException

Parameters:

out -

compressionLevel -

strategy - Deflate compression strategy

encodingMode - FORCE_GZIP to write gzwrite compatible output; FORCE_DEFLATE to write gzip header and zlib header, but do not write crc32 trailer

Throws:

java.io.IOException

ZlibOutputStream

public ZlibOutputStream(java.io.OutputStream os,
                        int compressionLevel,
                        int strategy)
                 throws java.io.IOException

Parameters:

os -

compressionLevel -

strategy - Deflate compression strategy

Throws:

java.io.IOException

ZlibOutputStream

public ZlibOutputStream(java.io.OutputStream os)
                 throws java.io.IOException

Throws:

java.io.IOException

Method Detail

write

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

Writes a byte.

Specified by:

write in class java.io.OutputStream

Parameters:

input -

Throws:

java.io.IOException

write

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

Description copied from interface: BinaryOutput

Writes a buffer.

Specified by:

write in interface BinaryOutput

Overrides:

write in class java.io.OutputStream

Parameters:

input -

offset -

length -

Throws:

java.io.IOException

flush

public void flush()

Description copied from class: AbstractBinaryOutput

Flushes the output.

Specified by:

flush in interface BinaryOutput

Specified by:

flush in interface java.io.Flushable

Overrides:

flush in class AbstractBinaryOutput

closeWrite

public void closeWrite()

Description copied from class: AbstractBinaryOutput

Closes the file.

Specified by:

closeWrite in interface BinaryOutput

Overrides:

closeWrite in class AbstractBinaryOutput

close

public void close()

Description copied from class: AbstractBinaryOutput

Closes the stream.

Specified by:

close in interface BinaryOutput

Specified by:

close in interface BinaryStream

Specified by:

close in interface java.io.Closeable

Overrides:

close in class AbstractBinaryOutput

isEOF

public boolean isEOF()

Returns false always for a write stream.

Specified by:

isEOF in interface BinaryStream

Overrides:

isEOF in class AbstractBinaryOutput

getPosition

public long getPosition()

Tells the position in the gzip stream

Specified by:

getPosition in interface BinaryStream

Overrides:

getPosition in class AbstractBinaryOutput

setPosition

public boolean setPosition(long offset)

Sets the position.

Specified by:

setPosition in interface BinaryStream

Overrides:

setPosition in class AbstractBinaryOutput

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object