Package org.apache.nutch.util

Class DeflateUtils

java.lang.Object

org.apache.nutch.util.DeflateUtils

public class DeflateUtils
extends Object

A collection of utility methods for working on deflated data.

Constructor Summary

Constructors

Constructor	Description
DeflateUtils()

Method Summary

Modifier and Type	Method	Description
static byte[]	deflate(byte[] in)	Returns a deflated copy of the input array.
static byte[]	inflate(byte[] in)	Returns an inflated copy of the input array.
static byte[]	inflateBestEffort(byte[] in)	Returns an inflated copy of the input array.
static byte[]	inflateBestEffort(byte[] in, int sizeLimit)	Returns an inflated copy of the input array, truncated to sizeLimit bytes, if necessary.

Methods inherited from class java.lang.Object

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

Constructor Detail

DeflateUtils

public DeflateUtils()

Method Detail

inflateBestEffort

public static final byte[] inflateBestEffort(byte[] in)

Returns an inflated copy of the input array. If the deflated input has been truncated or corrupted, a best-effort attempt is made to inflate as much as possible. If no data can be extracted null is returned.

Parameters:

in - Deflated byte array

Returns:

An inflated copy of the input array, otherwise null

inflateBestEffort

public static final byte[] inflateBestEffort(byte[] in,
                                             int sizeLimit)

Returns an inflated copy of the input array, truncated to sizeLimit bytes, if necessary. If the deflated input has been truncated or corrupted, a best-effort attempt is made to inflate as much as possible. If no data can be extracted null is returned.

Parameters:

in - Deflated byte array

sizeLimit - Maximum size (bytes) allowed for inflated copy

Returns:

An inflated copy of the input array, otherwise null

inflate

public static final byte[] inflate(byte[] in)
                            throws IOException

Returns an inflated copy of the input array.

Parameters:

in - Deflated byte array

Returns:

An inflated copy of the input array, otherwise null

Throws:

IOException - if the input cannot be properly decompressed

deflate

public static final byte[] deflate(byte[] in)

Returns a deflated copy of the input array.

Parameters:

in - Inflated byte array

Returns:

A deflated copy of the input array, otherwise null