Example usage for java.util.zip GZIPOutputStream GZIPOutputStream

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:builder.smartfrog.SmartFrogAction.java

public void compressLog() {
    File logFile = getLogFile();//from   w  w  w .j ava  2s .  c o m
    File compressedLog = new File(logFile.getParentFile(), logFile.getName() + ".gz");
    GZIPOutputStream gzos = null;
    FileInputStream ist = null;
    try {
        gzos = new GZIPOutputStream(new FileOutputStream(compressedLog));
        ist = new FileInputStream(logFile);
        IOUtils.copy(ist, gzos);
        gzos.finish();
    } catch (IOException e) {
        Logger.getLogger(SmartFrogBuildListener.class.getName()).log(Level.WARNING,
                "was not able to compress log file " + logFile.getAbsolutePath(), e);
        if (ist != null)
            IOUtils.closeQuietly(ist);
        if (gzos != null)
            IOUtils.closeQuietly(gzos);
        return;
    }
    logFile.delete();
}

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

private File createGzFile(String gzFileName, File sourceFile) throws IOException {
    File target = TEMP_FOLDER.newFile(gzFileName + ".gz");
    try (GZIPOutputStream gzos = new GZIPOutputStream(new FileOutputStream(target))) {
        com.google.common.io.Files.copy(sourceFile, gzos);
    }/* www .  ja va  2 s . co m*/
    return target;
}

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From source file:com.iontorrent.vaadin.utils.JFreeChartWrapper.java

@Override
public Resource getSource() {
    if (res == null) {
        res = new ApplicationResource() {

            private ByteArrayInputStream bytestream = null;

            ByteArrayInputStream getByteStream() {
                if (chart != null && bytestream == null) {
                    int widht = getGraphWidth();
                    int height = getGraphHeight();
                    info = new ChartRenderingInfo();

                    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 va 2  s .  c o m*/
                        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(widht, height), info);
                        Element el = svgGenerator.getRoot();
                        el.setAttributeNS(null, "viewBox", "0 0 " + widht + " " + 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 (UnsupportedEncodingException e) {
                            // TODO Auto-generated catch block
                            e.printStackTrace();
                        } catch (SVGGraphics2DIOException e) {
                            // TODO Auto-generated catch block
                            e.printStackTrace();
                        } catch (IOException e) {
                            // TODO Auto-generated catch block
                            e.printStackTrace();
                        }
                    } else {
                        // Draw png to bytestream
                        try {

                            byte[] bytes = ChartUtilities.encodeAsPNG(chart.createBufferedImage(widht, height));
                            bytestream = new ByteArrayInputStream(bytes);
                        } catch (IOException e) {
                            // TODO Auto-generated catch block
                            e.printStackTrace();
                        }

                    }

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

            public Application getApplication() {
                return JFreeChartWrapper.this.getApplication();
            }

            public int getBufferSize() {
                if (getByteStream() != null) {
                    return getByteStream().available();
                } else {
                    return 0;
                }
            }

            public long getCacheTime() {
                return 0;
            }

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

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

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

---

From source file:com.splout.db.dnode.HttpFileExchanger.java

public void send(final String tablespace, final int partition, final long version, final File binaryFile,
        final String url, boolean blockUntilComplete) {
    Future<?> future = clientExecutors.submit(new Runnable() {
        @Override/*ww w . j  a  v  a2s  . c o  m*/
        public void run() {
            DataOutputStream writer = null;
            InputStream input = null;
            try {
                HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
                connection.setChunkedStreamingMode(config.getInt(FetcherProperties.DOWNLOAD_BUFFER));
                connection.setDoOutput(true);
                connection.setRequestProperty("filename", binaryFile.getName());
                connection.setRequestProperty("tablespace", tablespace);
                connection.setRequestProperty("partition", partition + "");
                connection.setRequestProperty("version", version + "");

                Checksum checkSum = new CRC32();

                writer = new DataOutputStream(new GZIPOutputStream(connection.getOutputStream()));
                // 1 - write file size
                writer.writeLong(binaryFile.length());
                writer.flush();
                // 2 - write file content
                input = new FileInputStream(binaryFile);
                byte[] buffer = new byte[config.getInt(FetcherProperties.DOWNLOAD_BUFFER)];
                long wrote = 0;
                for (int length = 0; (length = input.read(buffer)) > 0;) {
                    writer.write(buffer, 0, length);
                    checkSum.update(buffer, 0, length);
                    wrote += length;
                }
                // 3 - add the CRC so that we can verify the download
                writer.writeLong(checkSum.getValue());
                writer.flush();
                log.info("Sent file " + binaryFile + " to " + url + " with #bytes: " + wrote + " and checksum: "
                        + checkSum.getValue());
            } catch (IOException e) {
                log.error(e);
            } finally {
                try {
                    if (input != null) {
                        input.close();
                    }
                    if (writer != null) {
                        writer.close();
                    }
                } catch (IOException ignore) {
                }
            }
        }
    });
    try {
        if (blockUntilComplete) {
            while (future.isDone() || future.isCancelled()) {
                Thread.sleep(1000);
            }
        }
    } catch (InterruptedException e) {
        // interrupted!
    }
}

---

From source file:com.pai.app.web.core.framework.web.filter.CompressionResponseStream.java

public void writeToGZip(byte b[], int off, int len) throws IOException {

    //log.trace("writeToGZip, len = " + len);
    /* minhnn comment/* w  ww  . j  a  va 2 s.c o m*/
    if (debug > 2) {
    System.out.print("writeToGZip(");
    System.out.write(b, off, len);
    System.out.println(")");
    }*/
    if (gzipstream == null) {
        //log.trace("new GZIPOutputStream");
        response.addHeader("Content-Encoding", "gzip");
        gzipstream = new GZIPOutputStream(output);
    }
    gzipstream.write(b, off, len);

}

---

From source file:cn.salesuite.saf.download.AndroidHttpClient.java

/**
 * Compress data to send to server.//  w  w w  .  j a v  a2 s .  c o m
 * Creates a Http Entity holding the gzipped data.
 * The data will not be compressed if it is too short.
 * @param data The bytes to compress
 * @return Entity holding the data
 */
public static AbstractHttpEntity getCompressedEntity(byte data[], ContentResolver resolver) throws IOException {
    AbstractHttpEntity entity;
    if (data.length < getMinGzipSize(resolver)) {
        entity = new ByteArrayEntity(data);
    } else {
        ByteArrayOutputStream arr = new ByteArrayOutputStream();
        OutputStream zipper = new GZIPOutputStream(arr);
        zipper.write(data);
        zipper.close();
        entity = new ByteArrayEntity(arr.toByteArray());
        entity.setContentEncoding("gzip");
    }
    return entity;
}

---

From source file:gobblin.metastore.MysqlStateStore.java

@Override
public void putAll(String storeName, String tableName, Collection<T> states) throws IOException {
    try (Connection connection = dataSource.getConnection();
            PreparedStatement insertStatement = connection.prepareStatement(UPSERT_JOB_STATE_SQL);
            ByteArrayOutputStream byteArrayOs = new ByteArrayOutputStream();
            OutputStream os = compressedValues ? new GZIPOutputStream(byteArrayOs) : byteArrayOs;
            DataOutputStream dataOutput = new DataOutputStream(os)) {

        int index = 0;
        insertStatement.setString(++index, storeName);
        insertStatement.setString(++index, tableName);

        for (T state : states) {
            addStateToDataOutputStream(dataOutput, state);
        }/*w  w w . j ava2  s  .  c o  m*/

        dataOutput.close();
        insertStatement.setBlob(++index, new ByteArrayInputStream(byteArrayOs.toByteArray()));

        insertStatement.executeUpdate();
        connection.commit();
    } catch (SQLException e) {
        throw new IOException("Failure storing state to store " + storeName + " table " + tableName, e);
    }
}

---

From source file:org.kairosdb.datastore.remote.RemoteDatastore.java

/**
 Compresses the given file and removes the uncompressed file
 @param file//w w  w. j av a2 s  .c  om
 @return Size of the zip file
 */
private long zipFile(String file) throws IOException {
    String zipFile = file + ".gz";

    FileInputStream is = new FileInputStream(file);
    GZIPOutputStream gout = new GZIPOutputStream(new FileOutputStream(zipFile));

    byte[] buffer = new byte[1024];
    int readSize = 0;
    while ((readSize = is.read(buffer)) != -1)
        gout.write(buffer, 0, readSize);

    is.close();
    gout.flush();
    gout.close();

    //delete uncompressed file
    new File(file).delete();

    return (new File(zipFile).length());
}

---

From source file:fast.simple.download.http.DownloadHttpClient.java

private static ByteArrayOutputStream zip(byte data[]) {
    ByteArrayOutputStream arr = new ByteArrayOutputStream();
    OutputStream zipper = null;/*from w  w  w .j  a va2s  .c  om*/
    try {
        zipper = new GZIPOutputStream(arr);
        zipper.write(data);
    } catch (Exception e) {
    } finally {
        try {
            if (zipper != null) {
                zipper.close();
            }
        } catch (Exception e) {
        }
    }
    return arr;
}

---

From source file:csiro.pidsvc.servlet.controller.java

protected void returnAttachment(HttpServletResponse response, String filename, String outputFormat,
        String content) throws IOException {
    //      response.setContentType("application/xml"); response.getWriter().write(content); return;
    if (outputFormat.equalsIgnoreCase("xml")) {
        response.setContentType("application/xml");
        response.setHeader("Content-Disposition", "attachment; filename=" + filename);
        response.getOutputStream().write(content.getBytes());
    } else {/*w ww .java  2 s  .  c  om*/
        response.setContentType("application/zip");
        response.setHeader("Content-Disposition", "attachment; filename=" + filename);
        GZIPOutputStream gos = new GZIPOutputStream(response.getOutputStream());
        gos.write(content.getBytes());
        gos.close();
    }
}

---

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