Class FilterUtil

java.lang.Object

com.itextpdf.io.util.FilterUtil

public final class FilterUtil
extends Object

This file is a helper class for internal usage only. Be aware that its API and functionality may be changed in future.

Field Summary

Fields

Modifier and Type	Field	Description
private static final org.slf4j.Logger	LOGGER	The Logger instance.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	FilterUtil()

Method Summary

Modifier and Type	Method	Description
static byte[]	flateDecode(byte[] input)	Decodes a stream that has the FlateDecode filter.
static byte[]	flateDecode(byte[] input, boolean strict)	A helper to FlateDecode.
static InputStream	getInflaterInputStream(InputStream input)
static void	inflateData(byte[] deflated, byte[] inflated)	This method provides support for general purpose decompression using the popular ZLIB compression library.

Methods inherited from class Object

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

Field Details

LOGGER

private static final org.slf4j.Logger LOGGER

The Logger instance.

Constructor Details

FilterUtil

private FilterUtil()

Method Details

flateDecode

public static byte[] flateDecode(byte[] input,
 boolean strict)

A helper to FlateDecode.

Parameters:

input - the input data

strict - true to read a correct stream. false to try to read a corrupted stream

Returns:

the decoded data

flateDecode

public static byte[] flateDecode(byte[] input)

Decodes a stream that has the FlateDecode filter.

Parameters:

input - the input data

Returns:

the decoded data

inflateData

public static void inflateData(byte[] deflated,
 byte[] inflated)

This method provides support for general purpose decompression using the popular ZLIB compression library.

Parameters:

deflated - the input data bytes

inflated - the buffer for the uncompressed data

getInflaterInputStream

public static InputStream getInflaterInputStream(InputStream input)