/** @deprecated use open(OutputStream, ASN1ObjectIdentifier, ContentCompressor) */
public OutputStream open(OutputStream out, String contentOID, String compressionOID)
throws IOException {
BERSequenceGenerator sGen = new BERSequenceGenerator(out);
sGen.addObject(CMSObjectIdentifiers.compressedData);
//
// Compressed Data
//
BERSequenceGenerator cGen = new BERSequenceGenerator(sGen.getRawOutputStream(), 0, true);
cGen.addObject(new DERInteger(0));
//
// AlgorithmIdentifier
//
DERSequenceGenerator algGen = new DERSequenceGenerator(cGen.getRawOutputStream());
algGen.addObject(new DERObjectIdentifier(ZLIB));
algGen.close();
//
// Encapsulated ContentInfo
//
BERSequenceGenerator eiGen = new BERSequenceGenerator(cGen.getRawOutputStream());
eiGen.addObject(new DERObjectIdentifier(contentOID));
OutputStream octetStream =
CMSUtils.createBEROctetOutputStream(eiGen.getRawOutputStream(), 0, true, _bufferSize);
return new CmsCompressedOutputStream(new DeflaterOutputStream(octetStream), sGen, cGen, eiGen);
}
/**
* Open a compressing output stream.
*
* @param contentOID
* @param out
* @param compressor
* @return
* @throws IOException
*/
public OutputStream open(
ASN1ObjectIdentifier contentOID, OutputStream out, OutputCompressor compressor)
throws IOException {
BERSequenceGenerator sGen = new BERSequenceGenerator(out);
sGen.addObject(CMSObjectIdentifiers.compressedData);
//
// Compressed Data
//
BERSequenceGenerator cGen = new BERSequenceGenerator(sGen.getRawOutputStream(), 0, true);
cGen.addObject(new DERInteger(0));
//
// AlgorithmIdentifier
//
cGen.addObject(compressor.getAlgorithmIdentifier());
//
// Encapsulated ContentInfo
//
BERSequenceGenerator eiGen = new BERSequenceGenerator(cGen.getRawOutputStream());
eiGen.addObject(contentOID);
OutputStream octetStream =
CMSUtils.createBEROctetOutputStream(eiGen.getRawOutputStream(), 0, true, _bufferSize);
return new CmsCompressedOutputStream(
compressor.getOutputStream(octetStream), sGen, cGen, eiGen);
}