Example usage for java.util.zip GZIPOutputStream GZIPOutputStream

List of usage examples for java.util.zip GZIPOutputStream GZIPOutputStream

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Introduction

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

Prototype

public GZIPOutputStream(OutputStream out) throws IOException

Source Link

Document

Creates a new output stream with a default buffer size.

Usage

From source file:com.unilever.audit.services2.Sync_Down.java

/**
 * Retrieves representation of an instance of
 * com.unilever.audit.services2.AuditResource
 *
 * @param id//from   www.ja v a2  s  .  c  o  m
 * @param dataType
 * @return an instance of java.lang.String
 */
@GET
@Path("getSyncObject/{id}/{dataType}/{compress}")
@Produces("application/json")
public byte[] getSyncObject(@PathParam("id") int id, @PathParam("dataType") String dataType,
        @PathParam("compress") int compress) {

    GZIPOutputStream gzip = null;
    count++;
    ByteArrayOutputStream out = null;
    SyncDownObjects syncDownObjects = getObject(dataType, id);

    try {
        out = new ByteArrayOutputStream();
        gzip = new GZIPOutputStream(out);

        ObjectMapper mapper = new ObjectMapper();
        AnnotationIntrospector introspector = new JaxbAnnotationIntrospector();
        AnnotationIntrospector introspector1 = new JacksonAnnotationIntrospector();
        mapper.setAnnotationIntrospectors(introspector, introspector1);
        mapper.setDateFormat(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"));

        //String jsonString = mapper.writeValueAsString(syncDownObjects);
        //JSONObject jsonobject = (JSONObject) new JSONParser().parse(jsonString);
        //gzip.write(jsonobject.toString().getBytes("8859_1"));
        //gzip.write(jsonobject.toString().getBytes("UTF-8"));
        gzip.write(mapper.writeValueAsBytes(syncDownObjects));
        gzip.close();

    } catch (IOException ex) {
        ex.printStackTrace();
    } //catch (ParseException ex) {
      // ex.printStackTrace();
      // }
    System.out.println("======================= count : " + count);
    return out.toByteArray();
}

From source file:com.nokia.helium.core.EmailDataSender.java

/**
 * GZipping a string.//from  w w w .j  ava 2 s .  c om
 * 
 * @param data the content to be gzipped.
 * @param filename the name for the file.
 * @return a ByteArrayDataSource.
 */
protected ByteArrayDataSource compressFile(File fileName) throws IOException {
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    GZIPOutputStream gz = new GZIPOutputStream(out);
    BufferedInputStream bufferedInputStream = new BufferedInputStream(new FileInputStream(fileName));
    byte[] dataBuffer = new byte[512];
    while ((bufferedInputStream.read(dataBuffer)) != -1) {
        gz.write(dataBuffer);
    }
    gz.close();
    bufferedInputStream.close();
    ByteArrayDataSource dataSrc = new ByteArrayDataSource(out.toByteArray(), "application/x-gzip");
    return dataSrc;
}

From source file:net.landora.video.info.file.FileInfoManager.java

private synchronized void writeCacheFile(File file, Map<String, FileInfo> infoMap) {
    OutputStream os = null;/*from   w  ww.ja v a 2  s. com*/
    try {
        os = new BufferedOutputStream(new FileOutputStream(file));
        if (COMPRESS_INFO_FILE) {
            os = new GZIPOutputStream(os);
        }

        XMLStreamWriter writer = XMLOutputFactory.newInstance().createXMLStreamWriter(os);
        writer.writeStartDocument();

        writer.writeStartElement("files");
        writer.writeCharacters("\n");

        for (Map.Entry<String, FileInfo> entry : infoMap.entrySet()) {
            FileInfo info = entry.getValue();

            writer.writeStartElement("file");
            writer.writeAttribute("filename", entry.getKey());

            writer.writeAttribute("ed2k", info.getE2dkHash());
            writer.writeAttribute("length", String.valueOf(info.getFileSize()));
            writer.writeAttribute("lastmodified", String.valueOf(info.getLastModified()));

            if (info.getMetadataSource() != null) {
                writer.writeAttribute("metadatasource", info.getMetadataSource());
            }
            if (info.getMetadataId() != null) {
                writer.writeAttribute("metadataid", info.getMetadataId());
            }
            if (info.getVideoId() != null) {
                writer.writeAttribute("videoid", info.getVideoId());
            }

            writer.writeEndElement();
            writer.writeCharacters("\n");
        }

        writer.writeEndElement();
        writer.writeEndDocument();
        writer.close();

    } catch (Exception e) {
        log.error("Error writing file cache.", e);
    } finally {
        if (os != null) {
            IOUtils.closeQuietly(os);
        }
    }
}

From source file:hudson.plugins.project_inheritance.projects.view.InheritanceViewAction.java

public void createTgzArchive(File dstFile, String srcDir, List<File> srcFiles) throws IOException {
    //Creating the output ZipFile
    FileOutputStream fos = new FileOutputStream(dstFile);
    GZIPOutputStream gzos = new GZIPOutputStream(fos);
    TarOutputStream tos = new TarOutputStream(gzos);

    try {/*from   w w  w.jav  a 2s .  c  o m*/
        byte[] buffer = new byte[8192];
        for (File srcFile : srcFiles) {
            if (!srcFile.exists()) {
                throw new IOException("No such file " + srcFile.getPath());
            }
            //Strip the prefix off the srcFile
            String relPath = PathMapping.getRelativePath(srcFile.getPath(), srcDir, File.separator);

            TarEntry entry = new TarEntry(relPath);
            entry.setMode(0777);
            entry.setSize(srcFile.length());
            //Put the entry into the ZIP file
            tos.putNextEntry(entry);
            //Dump the data
            FileInputStream fis = new FileInputStream(srcFile);
            try {
                while (true) {
                    int read = fis.read(buffer);
                    if (read <= 0) {
                        break;
                    }
                    tos.write(buffer, 0, read);
                }
            } finally {
                fis.close();
            }
            //Close the entry
            tos.closeEntry();
        }
    } finally {
        if (tos != null) {
            tos.close();
        }
    }
}

From source file:com.dotcms.publisher.myTest.PushPublisher.java

/**
 * Compress (tar.gz) the input files to the output file
 *
 * @param files The files to compress/*from   w  w w . j  a va2s.c o  m*/
 * @param output The resulting output file (should end in .tar.gz)
 * @param bundleRoot
 * @throws IOException
 */
private void compressFiles(Collection<File> files, File output, String bundleRoot) throws IOException {
    Logger.info(this.getClass(), "Compressing " + files.size() + " to " + output.getAbsoluteFile());
    // Create the output stream for the output file
    FileOutputStream fos = new FileOutputStream(output);
    // Wrap the output file stream in streams that will tar and gzip everything
    TarArchiveOutputStream taos = new TarArchiveOutputStream(
            new GZIPOutputStream(new BufferedOutputStream(fos)));

    // TAR originally didn't support long file names, so enable the support for it
    taos.setLongFileMode(TarArchiveOutputStream.LONGFILE_GNU);

    // Get to putting all the files in the compressed output file
    for (File f : files) {
        addFilesToCompression(taos, f, ".", bundleRoot);
    }

    // Close everything up
    taos.close();
    fos.close();
}

From source file:com.github.jasonruckman.gzip.AbstractBenchmark.java

private void initializeKryo() {
    try {//  w  ww . ja va 2  s.co  m
        Kryo kryo = new Kryo();
        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
        GZIPOutputStream gzos = new GZIPOutputStream(outputStream);
        Output o = output();
        o.setOutputStream(gzos);
        kryo.writeObject(o, sampleData);
        o.close();
        gzos.close();
        serializedKryoData = outputStream.toByteArray();
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

From source file:com.esofthead.mycollab.community.ui.chart.JFreeChartWrapper.java

@Override
public Resource getSource() {
    if (res == null) {
        StreamSource streamSource = new StreamResource.StreamSource() {
            private ByteArrayInputStream bytestream = null;

            ByteArrayInputStream getByteStream() {
                if (chart != null && bytestream == null) {
                    int width = getGraphWidth();
                    int height = getGraphHeight();

                    if (mode == RenderingMode.SVG) {

                        DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
                        DocumentBuilder docBuilder = null;
                        try {
                            docBuilder = docBuilderFactory.newDocumentBuilder();
                        } catch (ParserConfigurationException e1) {
                            throw new RuntimeException(e1);
                        }//from   w w w . j a v  a2  s . c  om
                        Document document = docBuilder.newDocument();
                        Element svgelem = document.createElement("svg");
                        document.appendChild(svgelem);

                        // Create an instance of the SVG Generator
                        SVGGraphics2D svgGenerator = new SVGGraphics2D(document);

                        // draw the chart in the SVG generator
                        chart.draw(svgGenerator, new Rectangle(width, height));
                        Element el = svgGenerator.getRoot();
                        el.setAttributeNS(null, "viewBox", "0 0 " + width + " " + height + "");
                        el.setAttributeNS(null, "style", "width:100%;height:100%;");
                        el.setAttributeNS(null, "preserveAspectRatio", getSvgAspectRatio());

                        // Write svg to buffer
                        ByteArrayOutputStream baoutputStream = new ByteArrayOutputStream();
                        Writer out;
                        try {
                            OutputStream outputStream = gzipEnabled ? new GZIPOutputStream(baoutputStream)
                                    : baoutputStream;
                            out = new OutputStreamWriter(outputStream, "UTF-8");
                            /*
                            * don't use css, FF3 can'd deal with the result
                            * perfectly: wrong font sizes
                            */
                            boolean useCSS = false;
                            svgGenerator.stream(el, out, useCSS, false);
                            outputStream.flush();
                            outputStream.close();
                            bytestream = new ByteArrayInputStream(baoutputStream.toByteArray());
                        } catch (Exception e) {
                            log.error("Error while generating SVG chart", e);
                        }
                    } else {
                        // Draw png to bytestream
                        try {
                            byte[] bytes = ChartUtilities.encodeAsPNG(chart.createBufferedImage(width, height));
                            bytestream = new ByteArrayInputStream(bytes);
                        } catch (Exception e) {
                            log.error("Error while generating PNG chart", e);
                        }

                    }

                } else {
                    bytestream.reset();
                }
                return bytestream;
            }

            @Override
            public InputStream getStream() {
                return getByteStream();
            }
        };

        res = new StreamResource(streamSource, String.format("graph%d", System.currentTimeMillis())) {

            @Override
            public int getBufferSize() {
                if (getStreamSource().getStream() != null) {
                    try {
                        return getStreamSource().getStream().available();
                    } catch (IOException e) {
                        log.warn("Error while get stream info", e);
                        return 0;
                    }
                } else {
                    return 0;
                }
            }

            @Override
            public long getCacheTime() {
                return 0;
            }

            @Override
            public String getFilename() {
                if (mode == RenderingMode.PNG) {
                    return super.getFilename() + ".png";
                } else {
                    return super.getFilename() + (gzipEnabled ? ".svgz" : ".svg");
                }
            }

            @Override
            public DownloadStream getStream() {
                DownloadStream downloadStream = new DownloadStream(getStreamSource().getStream(), getMIMEType(),
                        getFilename());
                if (gzipEnabled && mode == RenderingMode.SVG) {
                    downloadStream.setParameter("Content-Encoding", "gzip");
                }
                return downloadStream;
            }

            @Override
            public String getMIMEType() {
                if (mode == RenderingMode.PNG) {
                    return "image/png";
                } else {
                    return "image/svg+xml";
                }
            }
        };
    }
    return res;
}

From source file:gedi.util.io.text.LineOrientedFile.java

public Writer createWriter(boolean append) throws IOException {
    if (exists() && !append)
        delete();//  ww  w  .  j  a v  a2  s  .  c  o  m
    isGZIP();
    isBZIP2();

    OutputStream st = createOutputStream(append);
    if (isGZIP())
        st = new GZIPOutputStream(st);
    if (isBZIP2())
        st = new BZip2CompressorOutputStream(st);
    Writer re = new OutputStreamWriter(st, enc);
    if (isPipe())
        return re;
    return new BufferedWriter(re);
}

From source file:co.cask.cdap.internal.app.runtime.LocalizationUtilsTest.java

private File createTarGzFile(String tarGzFileName, File... filesToAdd) throws IOException {
    File target = TEMP_FOLDER.newFile(tarGzFileName + ".tar.gz");
    try (TarArchiveOutputStream tos = new TarArchiveOutputStream(
            new GZIPOutputStream(new BufferedOutputStream(new FileOutputStream(target))))) {
        addFilesToTar(tos, filesToAdd);/*  www  . j av  a  2 s. co m*/
    }
    return target;
}

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

/**
 * Compresses the given byte[]./*w ww. j av a  2s  .com*/
 *
 * @param uncompressed the byte[] to compress
 * @return the compressed byte[]
 * @throws java.lang.NullPointerException if the payload has no content a {@link java.lang.NullPointerException}
 *                                        is thrown
 * @throws java.io.IOException            if problem during gzip compression occurs a {@link java.io.IOException} is thrown
 */
private byte[] compress(byte[] uncompressed) throws IOException, NullPointerException {
    if (uncompressed == null) {
        throw new NullPointerException("Payload was null");
    }

    ByteArrayOutputStream compressedContent = new ByteArrayOutputStream();

    try {
        this.compress(new ByteArrayInputStream(uncompressed), new GZIPOutputStream(compressedContent));
    } catch (IOException e) {
        CompressionService.LOG.error("", e);
        throw e;
    }

    return compressedContent.toByteArray();
}