Example usage for java.util.zip GZIPOutputStream write

Introduction

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

Prototype

public synchronized void write(byte[] buf, int off, int len) throws IOException 

Source Link

Document

Writes array of bytes to the compressed output stream.

Usage

From source file:NGzipCompressingEntity.java

public void writeTo(final OutputStream outstream) throws IOException {
    if (outstream == null) {
        throw new IllegalArgumentException("Output stream may not be null");
    }//w w  w .j a  va 2 s.c o  m
    System.out.println("Writing gzip");
    GZIPOutputStream gzip = new GZIPOutputStream(outstream);
    InputStream in = wrappedEntity.getContent();
    byte[] tmp = new byte[2048];
    int l;
    while ((l = in.read(tmp)) != -1) {
        gzip.write(tmp, 0, l);
    }
    gzip.close();
}

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From source file:NGzipCompressingEntity.java

public void produceContent(ContentEncoder encoder, IOControl ioctrl) throws IOException {
    if (baos == null) {
        baos = new ByteArrayOutputStream();
        GZIPOutputStream gzip = new GZIPOutputStream(baos);
        InputStream in = wrappedEntity.getContent();
        byte[] tmp = new byte[2048];
        int l;/*from  ww w.j a v a 2s  .c om*/
        while ((l = in.read(tmp)) != -1) {
            gzip.write(tmp, 0, l);
        }
        gzip.close();

        buffer = ByteBuffer.wrap(baos.toByteArray());
    }

    encoder.write(buffer);
    if (!buffer.hasRemaining())
        encoder.complete();
}

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From source file:org.mule.util.compression.GZipCompression.java

/**
 * Used for compressing a byte array into a new byte array using GZIP
 * /*from   w ww.  j a v a  2  s.c  o  m*/
 * @param bytes An array of bytes to compress
 * @return a compressed byte array
 * @throws java.io.IOException if it fails to write to a GZIPOutputStream
 * @see java.util.zip.GZIPOutputStream
 */
public byte[] compressByteArray(byte[] bytes) throws IOException {
    // TODO add strict behaviour as option
    if (bytes == null || isCompressed(bytes)) {
        // nothing to compress
        if (logger.isDebugEnabled()) {
            logger.debug("Data already compressed; doing nothing");
        }
        return bytes;
    }

    if (logger.isDebugEnabled()) {
        logger.debug("Compressing message of size: " + bytes.length);
    }

    ByteArrayOutputStream baos = null;
    GZIPOutputStream gzos = null;

    try {
        baos = new ByteArrayOutputStream(DEFAULT_BUFFER_SIZE);
        gzos = new GZIPOutputStream(baos);

        gzos.write(bytes, 0, bytes.length);
        gzos.finish();
        gzos.close();

        byte[] compressedByteArray = baos.toByteArray();
        baos.close();

        if (logger.isDebugEnabled()) {
            logger.debug("Compressed message to size: " + compressedByteArray.length);
        }

        return compressedByteArray;
    } catch (IOException ioex) {
        throw ioex;
    } finally {
        IOUtils.closeQuietly(gzos);
        IOUtils.closeQuietly(baos);
    }
}

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From source file:org.wso2.carbon.logging.summarizer.scriptCreator.OutputFileHandler.java

public void compressLogFile(String temp) throws IOException {
    File file = new File(temp);
    FileOutputStream outputStream = new FileOutputStream(file + ".gz");
    GZIPOutputStream gzos = new GZIPOutputStream(outputStream);
    FileInputStream inputStream = new FileInputStream(temp);
    BufferedInputStream in = new BufferedInputStream(inputStream);
    byte[] buffer = new byte[1024];
    int i;//from w ww. j a v  a 2s .co  m
    while ((i = in.read(buffer)) >= 0) {
        gzos.write(buffer, 0, i);
    }
    in.close();
    gzos.close();
}

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From source file:eu.domibus.ebms3.common.CompressionService.java

/**
 * Compress given Stream via GZIP [RFC1952].
 *
 * @param sourceStream Stream of uncompressed data
 * @param targetStream Stream of compressed data
 * @throws IOException//from w  w  w. ja  v  a2s . c  o m
 */
private void compress(final InputStream sourceStream, final GZIPOutputStream targetStream) throws IOException {
    final byte[] buffer = new byte[1024];

    try {
        int i;
        while ((i = sourceStream.read(buffer)) > 0) {
            targetStream.write(buffer, 0, i);
        }

        sourceStream.close();

        targetStream.finish();
        targetStream.close();

    } catch (IOException e) {
        CompressionService.LOG.error(
                "I/O exception during gzip compression. method: compress(Inputstream, GZIPOutputStream)", e);
        throw e;
    }
}

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From source file:org.broadleafcommerce.common.sitemap.service.SiteMapServiceImpl.java

/**
 * Gzip a file and then delete the file//from w ww .  ja  v  a  2s.  c o  m
 * 
 * @param fileName
 */
protected void gzipAndDeleteFiles(FileWorkArea fileWorkArea, List<String> fileNames) {
    for (String fileName : fileNames) {
        try {
            String fileNameWithPath = FilenameUtils
                    .normalize(fileWorkArea.getFilePathLocation() + File.separator + fileName);

            FileInputStream fis = new FileInputStream(fileNameWithPath);
            FileOutputStream fos = new FileOutputStream(fileNameWithPath + ENCODING_EXTENSION);
            GZIPOutputStream gzipOS = new GZIPOutputStream(fos);
            byte[] buffer = new byte[1024];
            int len;
            while ((len = fis.read(buffer)) != -1) {
                gzipOS.write(buffer, 0, len);
            }
            //close resources
            gzipOS.close();
            fos.close();
            fis.close();

            File originalFile = new File(fileNameWithPath);
            originalFile.delete();

        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

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From source file:edu.umn.cs.spatialHadoop.visualization.FrequencyMap.java

@Override
public void write(DataOutput out) throws IOException {
    super.write(out);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    GZIPOutputStream gzos = new GZIPOutputStream(baos);
    ByteBuffer bbuffer = ByteBuffer.allocate(getHeight() * 4 + 8);
    bbuffer.putInt(getWidth());//from w ww  . j a v a2 s.  co m
    bbuffer.putInt(getHeight());
    gzos.write(bbuffer.array(), 0, bbuffer.position());
    for (int x = 0; x < getWidth(); x++) {
        bbuffer.clear();
        for (int y = 0; y < getHeight(); y++) {
            bbuffer.putFloat(frequencies[x][y]);
        }
        gzos.write(bbuffer.array(), 0, bbuffer.position());
    }
    gzos.close();

    byte[] serializedData = baos.toByteArray();
    out.writeInt(serializedData.length);
    out.write(serializedData);
}

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From source file:net.nifheim.beelzebu.coins.common.utils.FileManager.java

private void gzipFile(InputStream in, String to) throws IOException {
    GZIPOutputStream out = new GZIPOutputStream(new FileOutputStream(to));
    byte[] buffer = new byte[4096];
    int bytesRead;
    while ((bytesRead = in.read(buffer)) != -1) {
        out.write(buffer, 0, bytesRead);
    }//from  ww  w .  j  ava 2s  .  com
    in.close();
    out.close();
}

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From source file:org.efaps.admin.program.bundle.TempFileBundle.java

/**
 * @param _gziped zip the file/*  ww  w .  j  a  v  a2  s  . c om*/
 * @return File
 * @throws EFapsException on error
 */
private File setFile(final boolean _gziped) throws EFapsException {
    final String filename = _gziped ? this.key + "GZIP" : this.key;
    final File ret = FileUtils.getFile(TempFileBundle.getTempFolder(), filename);
    try {
        final FileOutputStream out = new FileOutputStream(ret);
        final byte[] buffer = new byte[1024];
        int bytesRead;
        if (_gziped) {
            final GZIPOutputStream zout = new GZIPOutputStream(out);
            for (final String oid : this.oids) {
                final Checkout checkout = new Checkout(oid);
                final InputStream bis = checkout.execute();
                while ((bytesRead = bis.read(buffer)) != -1) {
                    zout.write(buffer, 0, bytesRead);
                }
            }
            zout.close();
        } else {
            for (final String oid : this.oids) {
                final Checkout checkout = new Checkout(oid);
                final InputStream bis = checkout.execute();
                while ((bytesRead = bis.read(buffer)) != -1) {
                    out.write(buffer, 0, bytesRead);
                }
            }
        }
        out.close();
    } catch (final IOException e) {
        throw new EFapsException(this.getClass(), "setFile", e, filename);
    }
    return ret;
}

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From source file:org.pentaho.amazon.client.impl.S3ClientImplTest.java

private void createGzArchive() throws Exception {
    FileInputStream fileInputStream = null;
    FileOutputStream fileOutputStream = null;
    GZIPOutputStream gzipOutputStream = null;

    try {//w  ww .j  ava  2 s.  c  o  m
        fileInputStream = new FileInputStream(logFileName);
        fileOutputStream = new FileOutputStream(gzArchName);
        gzipOutputStream = new GZIPOutputStream(fileOutputStream);
        byte[] buffer = new byte[1024];
        int len;
        while ((len = fileInputStream.read(buffer)) != -1) {
            gzipOutputStream.write(buffer, 0, len);
        }
    } finally {
        gzipOutputStream.close();
        fileOutputStream.close();
        fileInputStream.close();
    }
}

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