Example usage for org.bouncycastle.cms.jcajce ZlibCompressor ZlibCompressor

Introduction

In this page you can find the example usage for org.bouncycastle.cms.jcajce ZlibCompressor ZlibCompressor.

Prototype

ZlibCompressor

Source Link

Usage

From source file:de.mendelson.comm.as2.message.AS2MessageCreation.java

/**
 * Compresses the payload using the ZLIB algorithm
 *///from ww w. j  ava  2 s  .c  om
private MimeBodyPart compressPayload(Partner receiver, InputStream dataStream, String contentType)
        throws Exception {
    MimeBodyPart bodyPart = new MimeBodyPart();
    bodyPart.setDataHandler(new DataHandler(new ByteArrayDataSource(dataStream, contentType)));
    bodyPart.addHeader("Content-Type", contentType);
    if (receiver.getContentTransferEncoding() == AS2Message.CONTENT_TRANSFER_ENCODING_BASE64) {
        bodyPart.addHeader("Content-Transfer-Encoding", "base64");
    } else {
        bodyPart.addHeader("Content-Transfer-Encoding", "binary");
    }
    SMIMECompressedGenerator generator = new SMIMECompressedGenerator();
    if (receiver.getContentTransferEncoding() == AS2Message.CONTENT_TRANSFER_ENCODING_BASE64) {
        generator.setContentTransferEncoding("base64");
    } else {
        generator.setContentTransferEncoding("binary");
    }
    return (generator.generate(bodyPart, new ZlibCompressor()));
}

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From source file:de.mendelson.comm.as2.message.AS2MessageCreation.java

/**
 * Compresses the payload using the ZLIB algorithm
 *///from ww  w. ja v a 2s.  c  o m
private MimeBodyPart compressPayload(Partner receiver, Part contentPart) throws SMIMEException {
    SMIMECompressedGenerator generator = new SMIMECompressedGenerator();
    if (receiver.getContentTransferEncoding() == AS2Message.CONTENT_TRANSFER_ENCODING_BASE64) {
        generator.setContentTransferEncoding("base64");
    } else {
        generator.setContentTransferEncoding("binary");
    }
    if (contentPart instanceof MimeBodyPart) {
        return (generator.generate((MimeBodyPart) contentPart, new ZlibCompressor()));
    } else if (contentPart instanceof MimeMessage) {
        return (generator.generate((MimeMessage) contentPart, new ZlibCompressor()));
    } else {
        throw new IllegalArgumentException(
                "compressPayload: Unable to compress a Part of class " + contentPart.getClass().getName());
    }
}

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From source file:de.mendelson.util.security.BCCryptoHelper.java

/**
 * Compress a data stream//from   w w  w  .  ja va  2s  . c  o m
 */
public void compressCMS(InputStream uncompressed, OutputStream compressed, boolean inMemory) throws Exception {
    //streamed compression does not work without a stream buffer in bc 1.45 and before
    CMSCompressedDataStreamGenerator generator = new CMSCompressedDataStreamGenerator();
    if (inMemory) {
        ByteArrayOutputStream memBuffer = new ByteArrayOutputStream();
        OutputStream cOut = generator.open(memBuffer, new ZlibCompressor());
        this.copyStreams(uncompressed, cOut);
        cOut.flush();
        cOut.close();
        compressed.write(memBuffer.toByteArray());
    } else {
        File tempFile = File.createTempFile("compress", ".temp");
        FileOutputStream fileBuffer = null;
        try {
            fileBuffer = new FileOutputStream(tempFile);
            OutputStream cOut = generator.open(fileBuffer, new ZlibCompressor());
            this.copyStreams(uncompressed, cOut);
            cOut.flush();
            cOut.close();
        } finally {
            if (fileBuffer != null) {
                fileBuffer.flush();
                fileBuffer.close();
            }
        }
        FileInputStream fileIn = null;
        try {
            fileIn = new FileInputStream(tempFile);
            this.copyStreams(fileIn, compressed);
        } finally {
            if (fileIn != null) {
                fileIn.close();
            }
        }
        boolean deleted = tempFile.delete();
    }
}

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