Package org.glassfish.grizzly.compression.zip

Class GZipFilter

java.lang.Object

org.glassfish.grizzly.filterchain.BaseFilter

org.glassfish.grizzly.compression.zip.GZipFilter

All Implemented Interfaces:

Filter

public class GZipFilter
extends BaseFilter

This class implements a Filter which encodes/decodes data in the GZIP format.

Author:

Alexey Stashok

Constructor Summary

Constructors

Constructor	Description
GZipFilter()	Construct GZipFilter using default buffer sizes.
GZipFilter(int inBufferSize, int outBufferSize)	Construct GZipFilter using specific buffer sizes.

Method Summary

Modifier and Type	Method	Description
NextAction	handleClose(FilterChainContext ctx)	Method perform the clean up of GZIP encoding/decoding state on a closed Connection.
NextAction	handleRead(FilterChainContext ctx)	Method decodes GZIP encoded data stored in FilterChainContext.getMessage() and, as the result, produces a Buffer with a plain data.
NextAction	handleWrite(FilterChainContext ctx)	Method compresses plain data stored in FilterChainContext.getMessage() and, as the result, produces a Buffer with a GZIP compressed data.

Methods inherited from class org.glassfish.grizzly.filterchain.BaseFilter

createContext, exceptionOccurred, handleAccept, handleConnect, handleEvent, onAdded, onFilterChainChanged, onRemoved, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

GZipFilter

public GZipFilter()

Construct GZipFilter using default buffer sizes.

GZipFilter

public GZipFilter(int inBufferSize,
                  int outBufferSize)

Construct GZipFilter using specific buffer sizes.

Parameters:

inBufferSize - input buffer size

outBufferSize - output buffer size

Method Detail

handleClose

public NextAction handleClose(FilterChainContext ctx)
                       throws IOException

Method perform the clean up of GZIP encoding/decoding state on a closed Connection.

Specified by:

handleClose in interface Filter

Overrides:

handleClose in class BaseFilter

Parameters:

ctx - Context of FilterChainContext processing.

Returns:

the next action

Throws:

IOException

handleRead

public NextAction handleRead(FilterChainContext ctx)
                      throws IOException

Method decodes GZIP encoded data stored in FilterChainContext.getMessage() and, as the result, produces a Buffer with a plain data.

Specified by:

handleRead in interface Filter

Overrides:

handleRead in class BaseFilter

Parameters:

ctx - Context of FilterChainContext processing.

Returns:

the next action

Throws:

IOException

handleWrite

public NextAction handleWrite(FilterChainContext ctx)
                       throws IOException

Method compresses plain data stored in FilterChainContext.getMessage() and, as the result, produces a Buffer with a GZIP compressed data.

Specified by:

handleWrite in interface Filter

Overrides:

handleWrite in class BaseFilter

Parameters:

ctx - Context of FilterChainContext processing.

Returns:

the next action

Throws:

IOException