Class ZlibCodecFactory

java.lang.Object

io.netty.handler.codec.compression.ZlibCodecFactory

public final class ZlibCodecFactory
extends java.lang.Object

Creates a new ZlibEncoder and a new ZlibDecoder.

Field Summary

Fields

Modifier and Type	Field	Description
private static final int	DEFAULT_JDK_MEM_LEVEL
private static final int	DEFAULT_JDK_WINDOW_SIZE
private static final boolean	JZLIB_AVAILABLE
private static final InternalLogger	logger
private static final boolean	noJdkZlibDecoder
private static final boolean	noJdkZlibEncoder

Constructor Summary

Constructors

Modifier	Constructor	Description
private	ZlibCodecFactory()

Method Summary

Modifier and Type	Method	Description
static boolean	isSupportingWindowSizeAndMemLevel()	Returns true if specify a custom window size and mem level is supported.
static ZlibDecoder	newZlibDecoder()	Deprecated. Use newZlibDecoder(int).
static ZlibDecoder	newZlibDecoder(byte[] dictionary)	Deprecated. Use newZlibDecoder(byte[], int).
static ZlibDecoder	newZlibDecoder(byte[] dictionary, int maxAllocation)	Create a new decoder instance with the specified preset dictionary and maximum buffer allocation.
static ZlibDecoder	newZlibDecoder(int maxAllocation)	Create a new decoder instance with specified maximum buffer allocation.
static ZlibDecoder	newZlibDecoder(ZlibWrapper wrapper)	Deprecated. Use newZlibDecoder(ZlibWrapper, int).
static ZlibDecoder	newZlibDecoder(ZlibWrapper wrapper, int maxAllocation)	Create a new decoder instance with the specified wrapper and maximum buffer allocation.
static ZlibEncoder	newZlibEncoder(byte[] dictionary)
static ZlibEncoder	newZlibEncoder(int compressionLevel)
static ZlibEncoder	newZlibEncoder(int compressionLevel, byte[] dictionary)
static ZlibEncoder	newZlibEncoder(int compressionLevel, int windowBits, int memLevel, byte[] dictionary)
static ZlibEncoder	newZlibEncoder(ZlibWrapper wrapper)
static ZlibEncoder	newZlibEncoder(ZlibWrapper wrapper, int compressionLevel)
static ZlibEncoder	newZlibEncoder(ZlibWrapper wrapper, int compressionLevel, int windowBits, int memLevel)

Methods inherited from class java.lang.Object

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

Field Details

logger

private static final InternalLogger logger

DEFAULT_JDK_WINDOW_SIZE

private static final int DEFAULT_JDK_WINDOW_SIZE

See Also:

• Constant Field Values

DEFAULT_JDK_MEM_LEVEL

private static final int DEFAULT_JDK_MEM_LEVEL

See Also:

• Constant Field Values

noJdkZlibDecoder

private static final boolean noJdkZlibDecoder

noJdkZlibEncoder

private static final boolean noJdkZlibEncoder

JZLIB_AVAILABLE

private static final boolean JZLIB_AVAILABLE

Constructor Details

ZlibCodecFactory

private ZlibCodecFactory()

Method Details

isSupportingWindowSizeAndMemLevel

public static boolean isSupportingWindowSizeAndMemLevel()

Returns true if specify a custom window size and mem level is supported.

newZlibEncoder

public static ZlibEncoder newZlibEncoder(int compressionLevel)

newZlibEncoder

public static ZlibEncoder newZlibEncoder(ZlibWrapper wrapper)

newZlibEncoder

public static ZlibEncoder newZlibEncoder(ZlibWrapper wrapper,
 int compressionLevel)

newZlibEncoder

public static ZlibEncoder newZlibEncoder(ZlibWrapper wrapper,
 int compressionLevel,
 int windowBits,
 int memLevel)

newZlibEncoder

public static ZlibEncoder newZlibEncoder(byte[] dictionary)

newZlibEncoder

public static ZlibEncoder newZlibEncoder(int compressionLevel,
 byte[] dictionary)

newZlibEncoder

public static ZlibEncoder newZlibEncoder(int compressionLevel,
 int windowBits,
 int memLevel,
 byte[] dictionary)

newZlibDecoder

@Deprecated
public static ZlibDecoder newZlibDecoder()

Deprecated.

Use newZlibDecoder(int).

Create a new decoder instance.

newZlibDecoder

public static ZlibDecoder newZlibDecoder(int maxAllocation)

Create a new decoder instance with specified maximum buffer allocation.

Parameters:

maxAllocation - Maximum size of the decompression buffer. Must be >= 0. If zero, maximum size is not limited by decoder.

newZlibDecoder

@Deprecated
public static ZlibDecoder newZlibDecoder(ZlibWrapper wrapper)

Deprecated.

Use newZlibDecoder(ZlibWrapper, int).

Create a new decoder instance with the specified wrapper.

newZlibDecoder

public static ZlibDecoder newZlibDecoder(ZlibWrapper wrapper,
 int maxAllocation)

Create a new decoder instance with the specified wrapper and maximum buffer allocation.

Parameters:

maxAllocation - Maximum size of the decompression buffer. Must be >= 0. If zero, maximum size is not limited by decoder.

newZlibDecoder

@Deprecated
public static ZlibDecoder newZlibDecoder(byte[] dictionary)

Deprecated.

Use newZlibDecoder(byte[], int).

Create a new decoder instance with the specified preset dictionary. The wrapper is always ZlibWrapper.ZLIB because it is the only format that supports the preset dictionary.

newZlibDecoder

public static ZlibDecoder newZlibDecoder(byte[] dictionary,
 int maxAllocation)

Create a new decoder instance with the specified preset dictionary and maximum buffer allocation. The wrapper is always ZlibWrapper.ZLIB because it is the only format that supports the preset dictionary.

Parameters:

maxAllocation - Maximum size of the decompression buffer. Must be >= 0. If zero, maximum size is not limited by decoder.