Module org.sejda.sambox

Package org.sejda.sambox.filter

Class CryptFilter

java.lang.Object

org.sejda.sambox.filter.Filter

org.sejda.sambox.filter.CryptFilter

final class CryptFilter
extends Filter

Decrypts data encrypted by a security handler, reproducing the data as it was before encryption.

Field Summary

Fields inherited from class org.sejda.sambox.filter.Filter

SYSPROP_DEFLATELEVEL

Constructor Summary

Constructors

Constructor	Description
CryptFilter()

Method Summary

Modifier and Type	Method	Description
DecodeResult	decode(InputStream encoded, OutputStream decoded, COSDictionary parameters, int index)	Decodes data, producing the original non-encoded data.
void	encode(InputStream input, OutputStream encoded, COSDictionary parameters)	Encodes data.

Methods inherited from class org.sejda.sambox.filter.Filter

findImageReader, getCompressionLevel, getDecodeParams

Methods inherited from class java.lang.Object

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

Constructor Details

CryptFilter

CryptFilter()

Method Details

decode

public DecodeResult decode(InputStream encoded,
 OutputStream decoded,
 COSDictionary parameters,
 int index)
                    throws IOException

Description copied from class: Filter

Decodes data, producing the original non-encoded data.

Specified by:

decode in class Filter

Parameters:

encoded - the encoded byte stream

decoded - the stream where decoded data will be written

parameters - the parameters used for decoding

index - the index to the filter being decoded

Returns:

repaired parameters dictionary, or the original parameters dictionary

Throws:

IOException - if the stream cannot be decoded

encode

public void encode(InputStream input,
 OutputStream encoded,
 COSDictionary parameters)
            throws IOException

Description copied from class: Filter

Encodes data.

Specified by:

encode in class Filter

Parameters:

input - the byte stream to encode

encoded - the stream where encoded data will be written

parameters - the parameters used for encoding

Throws:

IOException - if the stream cannot be encoded