Example usage for java.util.zip DeflaterOutputStream DeflaterOutputStream

Introduction

In this page you can find the example usage for java.util.zip DeflaterOutputStream DeflaterOutputStream.

Prototype

public DeflaterOutputStream(OutputStream out) 

Source Link

Document

Creates a new output stream with a default compressor and buffer size.

Usage

From source file:com.eviware.soapui.impl.wsdl.support.CompressionSupport.java

private static byte[] DeflaterCompress(byte[] requestContent) throws IOException {
    ByteArrayOutputStream compressedContent = new ByteArrayOutputStream();
    DeflaterOutputStream defstream = new DeflaterOutputStream(compressedContent);
    defstream.write(requestContent);//w w  w.ja  va 2  s .c o  m
    defstream.finish();

    // get the compressed content
    return compressedContent.toByteArray();
}

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From source file:com.autonomy.aci.client.transport.impl.AbstractEncryptionCodec.java

/**
 * Deflates the passed in <tt>String</tt> and prefixes the result with <tt>AUTN:</tt> before returning.
 * @param bytes The byte array to deflate
 * @return The deflated string prefixed with <tt>AUTN:</tt> as a byte array
 * @throws EncryptionCodecException If an error occurred during processing
 *//* w  w  w  .  j  a v  a2  s  . com*/
protected byte[] deflateInternal(final byte[] bytes) throws EncryptionCodecException {
    LOGGER.trace("deflateInternal() called...");

    // This is what will deflate for us...
    DeflaterOutputStream deflater = null;

    try {
        // Create the output container...
        final ByteArrayOutputStream baos = new ByteArrayOutputStream();

        // Create the deflater...
        deflater = new DeflaterOutputStream(baos);

        LOGGER.debug("Deflating content...");

        // Deflate the input string...
        deflater.write(bytes);
        deflater.finish();

        // Get the deflated bytes...
        final byte[] deflated = baos.toByteArray();

        LOGGER.debug("Adding prefix to deflated content...");

        // Get The deflated array prefix of AUTN: in bytes...
        final byte[] prefix = "AUTN:".getBytes("UTF-8");

        // Copy both the prefix and the deflated query string into a new array...
        final byte[] toEncrypt = new byte[prefix.length + deflated.length];
        System.arraycopy(prefix, 0, toEncrypt, 0, prefix.length);
        System.arraycopy(deflated, 0, toEncrypt, prefix.length, deflated.length);

        LOGGER.debug("Returning deflated and prefixed string...");

        // Return the deflated query string...
        return toEncrypt;
    } catch (final IOException ioe) {
        throw new EncryptionCodecException("Unable to deflate the input.", ioe);
    } finally {
        IOUtils.getInstance().closeQuietly(deflater);
    }
}

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From source file:org.diorite.nbt.NbtOutputStream.java

/**
 * Create new deflated nbt output stream for given stream, and write nbt tag to it.
 *
 * @param tag          nbt tag to write.
 * @param outputStream output stream to be used.
 *
 * @return created NbtOutputStream./*from  ww  w  .j a va2 s.c  om*/
 *
 * @throws IOException if any write operation failed.
 */
public static NbtOutputStream writeDeflated(final NbtTag tag, final OutputStream outputStream)
        throws IOException {
    final NbtOutputStream out = new NbtOutputStream(new DeflaterOutputStream(outputStream));
    out.write(tag);
    return out;
}

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From source file:org.openvpms.report.jasper.JRXMLDocumentHandler.java

/**
 * Creates a new {@link Document} from a stream.
 *
 * @param name     the document name//  ww w .  j  ava 2  s. co  m
 * @param stream   a stream representing the document content
 * @param mimeType the mime type of the document. May be {@code null}
 * @param size     the size of stream
 * @return a new document
 * @throws DocumentException         if the document can't be created
 * @throws ArchetypeServiceException for any archetype service error
 * @throws JRXMLDocumentException    if the document version cannot be parsed
 */
public Document create(String name, InputStream stream, String mimeType, int size) {
    Document document;
    JasperDesign design;
    try {
        design = JRXmlLoader.load(stream);
    } catch (JRException exception) {
        if (ExceptionUtils.getRootCause(exception) instanceof SAXParseException) {
            if (name == null) {
                name = "file";
            }
            throw new JRXMLDocumentException(exception, JRXMLDocumentException.ErrorCode.ReadError, name);
        } else {
            throw new DocumentException(DocumentException.ErrorCode.ReadError, exception, name);
        }
    }
    try {
        ByteArrayOutputStream bytes = new ByteArrayOutputStream();
        DeflaterOutputStream output = new DeflaterOutputStream(bytes);
        JRXmlWriter.writeReport(design, output, "UTF-8");
        output.close();
        document = create(name, bytes.toByteArray(), "text/xml", size);
    } catch (Exception exception) {
        throw new DocumentException(DocumentException.ErrorCode.WriteError, exception, name);
    }
    return document;
}

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From source file:Comman.Tool.java

public byte[] String_compress(String text) {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    try {/*from  w  ww  . ja v a2  s . c om*/
        try (OutputStream out = new DeflaterOutputStream(baos)) {
            out.write(text.getBytes("UTF-8"));
        }
    } catch (IOException e) {
        throw new AssertionError(e);
    }
    return baos.toByteArray();
}

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From source file:com.linkedin.r2.filter.compression.stream.TestStreamingCompression.java

@Test
public void testDeflateCompressor()
        throws IOException, InterruptedException, CompressionException, ExecutionException {
    StreamingCompressor compressor = new DeflateCompressor(_executor);
    final byte[] origin = new byte[BUF_SIZE];
    Arrays.fill(origin, (byte) 'c');

    ByteArrayOutputStream out = new ByteArrayOutputStream();
    DeflaterOutputStream zlib = new DeflaterOutputStream(out);
    IOUtils.write(origin, zlib);/*from   ww  w .  java 2 s .c  om*/
    zlib.close();
    byte[] compressed = out.toByteArray();

    testCompress(compressor, origin, compressed);
    testDecompress(compressor, origin, compressed);
    testCompressThenDecompress(compressor, origin);
}

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From source file:gov.nasa.ensemble.common.CommonUtils.java

public static byte[] compress(byte[] input) {
    try {/*from   w w  w.  j a va  2 s .  c om*/
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        DeflaterOutputStream dos = new DeflaterOutputStream(baos);
        dos.write(input);
        dos.close();
        return baos.toByteArray();
    } catch (IOException e) {
        throw new Error(e);
    }
}

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From source file:de.mpg.escidoc.services.fledgeddata.webservice.oaiServlet.java

/**
 * Get a response Writer depending on acceptable encodings
 * @param request the servlet's request information
 * @param response the servlet's response information
 * @exception IOException an I/O error occurred
 *//*from w  ww.  j av a2  s  .c  o m*/
public static Writer getWriter(HttpServletRequest request, HttpServletResponse response) throws IOException {
    Writer out;
    String encodings = request.getHeader("Accept-Encoding");

    if (encodings != null && encodings.indexOf("gzip") != -1) {
        response.setHeader("Content-Encoding", "gzip");
        out = new OutputStreamWriter(new GZIPOutputStream(response.getOutputStream()), "UTF-8");
    } else if (encodings != null && encodings.indexOf("deflate") != -1) {
        response.setHeader("Content-Encoding", "deflate");
        out = new OutputStreamWriter(new DeflaterOutputStream(response.getOutputStream()), "UTF-8");
    } else {
        out = response.getWriter();
    }
    return out;
}

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From source file:com.cloud.agent.api.SecurityIngressRulesCmd.java

public String compressStringifiedRules() {
    StringBuilder ruleBuilder = new StringBuilder();
    for (SecurityIngressRulesCmd.IpPortAndProto ipPandP : getRuleSet()) {
        ruleBuilder.append(ipPandP.getProto()).append(":").append(ipPandP.getStartPort()).append(":")
                .append(ipPandP.getEndPort()).append(":");
        for (String cidr : ipPandP.getAllowedCidrs()) {
            ruleBuilder.append(cidr).append(",");
        }/*from   www.  ja v a  2 s .co m*/
        ruleBuilder.append("NEXT");
        ruleBuilder.append(" ");
    }
    String stringified = ruleBuilder.toString();
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    try {
        //Note : not using GZipOutputStream since that is for files
        //GZipOutputStream gives a different header, although the compression is the same
        DeflaterOutputStream dzip = new DeflaterOutputStream(out);
        dzip.write(stringified.getBytes());
        dzip.close();
    } catch (IOException e) {
        s_logger.warn("Exception while compressing ingress rules");
        return null;
    }
    return Base64.encodeBase64String(out.toByteArray());
}

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From source file:org.diorite.nbt.NbtOutputStream.java

/**
 * Create new deflated nbt output stream for given file, and write nbt tag to it.
 *
 * @param tag  nbt tag to write.//from w  w w  .  ja v  a  2  s .  co m
 * @param file data file to be used.
 *
 * @return created NbtOutputStream.
 *
 * @throws IOException if any write operation failed.
 */
public static NbtOutputStream writeDeflated(final NbtTag tag, final File file) throws IOException {
    createFile(file);
    final NbtOutputStream out = new NbtOutputStream(
            new DeflaterOutputStream(new FileOutputStream(file, false)));
    out.write(tag);
    return out;
}

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