org.bouncycastle.cms

Class CMSCompressedDataStreamGenerator

java.lang.Object

org.bouncycastle.cms.CMSCompressedDataStreamGenerator

public class CMSCompressedDataStreamGenerator
extends Object

General class for generating a compressed CMS message stream.

A simple example of usage.

      CMSCompressedDataStreamGenerator gen = new CMSCompressedDataStreamGenerator();
      
      OutputStream cOut = gen.open(outputStream, new ZlibCompressor());
      
      cOut.write(data);
      
      cOut.close();
 

Field Summary

Fields

Modifier and Type	Field and Description
static String	ZLIB

Constructor Summary

Constructors

Constructor and Description
CMSCompressedDataStreamGenerator() base constructor

Method Summary

Modifier and Type	Method and Description
OutputStream	open(ASN1ObjectIdentifier contentOID, OutputStream out, OutputCompressor compressor) Open a compressing output stream.
OutputStream	open(OutputStream out, OutputCompressor compressor) Open a compressing output stream with the PKCS#7 content type OID of "data".
void	setBufferSize(int bufferSize) Set the underlying string size for encapsulated data

Methods inherited from class java.lang.Object

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

Field Detail

ZLIB

public static final String ZLIB

See Also:

Constant Field Values

Constructor Detail

CMSCompressedDataStreamGenerator

public CMSCompressedDataStreamGenerator()

base constructor

Method Detail

setBufferSize

public void setBufferSize(int bufferSize)

Set the underlying string size for encapsulated data

Parameters:

bufferSize - length of octet strings to buffer the data.

open

public OutputStream open(OutputStream out,
                         OutputCompressor compressor)
                  throws IOException

Open a compressing output stream with the PKCS#7 content type OID of "data".

Parameters:

out - the stream to encode to.

compressor - the type of compressor to use.

Returns:

an output stream to write the data be compressed to.

Throws:

IOException

open

public OutputStream open(ASN1ObjectIdentifier contentOID,
                         OutputStream out,
                         OutputCompressor compressor)
                  throws IOException

Open a compressing output stream.

Parameters:

contentOID - the content type OID.

out - the stream to encode to.

compressor - the type of compressor to use.

Returns:

an output stream to write the data be compressed to.

Throws:

IOException