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:de.wpsverlinden.dupfind.FileIndexer.java

public void saveIndex() {
    File outFile = new File(userDir + "/DupFind.index.gz");
    outputPrinter.print("Saving index ... ");
    try (XMLEncoder xenc = new XMLEncoder(new GZIPOutputStream(new FileOutputStream(outFile)))) {
        xenc.writeObject(fileIndex);/*w ww . jav a2 s.  c o  m*/
        xenc.flush();
        outputPrinter.println("done.  " + fileIndex.size() + " files in index.");
    } catch (IOException e) {
        System.err.println(e);
    }
}

From source file:net.alastairwyse.methodinvocationremoting.RemoteSenderCompressor.java

/**
 * Compresses a string./*from  ww w  .j  a  v  a2 s .  co m*/
 * @param inputString  The string to compress.
 * @return             The compressed string.
 * @throws Exception   If an error occurs whilst compressing the string.
 */
private String CompressString(String inputString) throws Exception {
    /* //[BEGIN_METRICS]
    metricLogger.Begin(new StringCompressTime());
    //[END_METRICS] */

    byte[] compressedByteArray;

    try (ByteArrayOutputStream compressedStringStream = new ByteArrayOutputStream();
            GZIPOutputStream compressor = new GZIPOutputStream(compressedStringStream)) {
        byte[] inputStringBytes = inputString.getBytes(stringEncodingCharset);
        compressor.write(inputStringBytes);
        // Although close() is called as part of this try-with-resources statement, the stream is not written correctly unless it is closed before reading 
        compressor.close();
        compressedByteArray = compressedStringStream.toByteArray();
    } catch (Exception e) {
        /* //[BEGIN_METRICS]
        metricLogger.CancelBegin(new StringCompressTime());
        //[END_METRICS] */
        throw new Exception("Error compressing message.", e);
    }

    String returnString = Base64.encodeBase64String(compressedByteArray);

    /* //[BEGIN_METRICS]
    metricLogger.End(new StringCompressTime());
    metricLogger.Increment(new StringCompressed());
    metricLogger.Add(new CompressedStringSize(returnString.length()));
    //[END_METRICS] */
    /* //[BEGIN_LOGGING]
    loggingUtilities.LogCompressedString(this, returnString);
    //[END_LOGGING] */

    return returnString;
}

From source file:de.tudarmstadt.ukp.dkpro.tc.core.util.TaskUtils.java

/**
 * Saves a serializable object of type <T> to disk. Output file may be uncompressed, gzipped or
 * bz2-compressed. Compressed files must have a .gz or .bz2 suffix.
 *
 * @param serializedFile/*from w ww . j ava  2s. c  o  m*/
 *            model output file
 * @param serializableObject
 *            the object to serialize
 * @throws IOException
 */
public static void serialize(File serializedFile, Object serializableObject) throws IOException {

    FileOutputStream fos = new FileOutputStream(serializedFile);
    BufferedOutputStream bufStr = new BufferedOutputStream(fos);

    OutputStream underlyingStream = null;
    if (serializedFile.getName().endsWith(".gz")) {
        underlyingStream = new GZIPOutputStream(bufStr);
    } else if (serializedFile.getName().endsWith(".bz2")) {
        underlyingStream = new CBZip2OutputStream(bufStr);
        // manually add bz2 prefix to make it compatible to normal bz2 tools
        // prefix has to be skipped when reading the stream with CBZip2
        fos.write("BZ".getBytes("UTF-8"));
    } else {
        underlyingStream = bufStr;
    }
    ObjectOutputStream serializer = new ObjectOutputStream(underlyingStream);
    try {
        serializer.writeObject(serializableObject);

    } finally {
        serializer.flush();
        serializer.close();
    }
}

From source file:com.jaspersoft.jasperserver.core.util.StreamUtil.java

public static byte[] compress(String string) throws IOException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    GZIPOutputStream gzos = new GZIPOutputStream(baos);
    OutputStreamWriter osw = new OutputStreamWriter(gzos);
    osw.write(string);//from  w ww. ja va  2  s.  c  o  m
    osw.flush();
    osw.close();
    return baos.toByteArray();
}

From source file:edu.ku.brc.specify.web.HttpLargeFileTransfer.java

/**
 * @param infileName/* w w  w . j a va 2s.  c  o  m*/
 * @param outFileName
 * @param changeListener
 * @return
 */
public boolean compressFile(final String infileName, final String outFileName,
        final PropertyChangeListener propChgListener) {
    final File file = new File(infileName);
    if (file.exists()) {
        long fileSize = file.length();
        if (fileSize > 0) {
            SwingWorker<Integer, Integer> backupWorker = new SwingWorker<Integer, Integer>() {
                protected String errorMsg = null;
                protected FileInputStream fis = null;
                protected GZIPOutputStream fos = null;

                /* (non-Javadoc)
                 * @see javax.swing.SwingWorker#doInBackground()
                 */
                @Override
                protected Integer doInBackground() throws Exception {
                    try {
                        Thread.sleep(100);

                        long totalSize = file.length();
                        long bytesCnt = 0;

                        FileInputStream fis = new FileInputStream(infileName);
                        GZIPOutputStream fos = new GZIPOutputStream(new FileOutputStream(outFileName));

                        byte[] bytes = new byte[BUFFER_SIZE * 10];

                        while (true) {
                            int len = fis.read(bytes);
                            if (len > 0) {
                                fos.write(bytes, 0, len);
                                bytesCnt += len;
                                firePropertyChange("MEGS", 0,
                                        (int) (((double) bytesCnt / (double) totalSize) * 100.0));
                            } else {
                                break;
                            }
                        }

                        fis.close();
                        fos.close();

                    } catch (Exception ex) {
                        ex.printStackTrace();
                        errorMsg = ex.toString();

                    } finally {
                        try {
                            if (fis != null) {
                                fis.close();
                            }
                            if (fos != null) {
                                fos.close();
                            }
                        } catch (IOException ex) {
                            errorMsg = ex.toString();
                        }
                    }
                    firePropertyChange("MEGS", 0, 100);
                    return null;
                }

                @Override
                protected void done() {
                    super.done();

                    UIRegistry.getStatusBar().setProgressDone(HttpLargeFileTransfer.class.toString());

                    //UIRegistry.clearSimpleGlassPaneMsg();

                    if (StringUtils.isNotEmpty(errorMsg)) {
                        UIRegistry.showError(errorMsg);
                    }

                    if (propChgListener != null) {
                        propChgListener.propertyChange(
                                new PropertyChangeEvent(HttpLargeFileTransfer.this, "Done", 0, 1));
                    }
                }
            };

            final JStatusBar statusBar = UIRegistry.getStatusBar();
            statusBar.setIndeterminate(HttpLargeFileTransfer.class.toString(), true);

            UIRegistry.writeSimpleGlassPaneMsg(getLocalizedMessage("Compressing Backup..."), 24);

            backupWorker.addPropertyChangeListener(new PropertyChangeListener() {
                public void propertyChange(final PropertyChangeEvent evt) {
                    if ("MEGS".equals(evt.getPropertyName())) {
                        Integer value = (Integer) evt.getNewValue();
                        double val = value / 10.0;
                        statusBar
                                .setText(UIRegistry.getLocalizedMessage("MySQLBackupService.BACKUP_MEGS", val));
                    }
                }
            });
            backupWorker.execute();

        } else {
            // file doesn't exist
        }
    } else {
        // file doesn't exist
    }
    return false;
}

From source file:com.rest4j.impl.ApiResponseImpl.java

@Override
public void outputBody(HttpServletResponse response) throws IOException {
    if (statusMessage == null)
        response.setStatus(status);/*from  ww  w.  ja v  a  2  s  . com*/
    else
        response.setStatus(status, statusMessage);
    headers.outputHeaders(response);
    if (this.response == null)
        return;
    response.addHeader("Content-type", this.response.getContentType());
    if (addEtag) {
        String etag = this.response.getETag();
        if (etag != null)
            response.addHeader("ETag", etag);
    }

    OutputStream outputStream;
    byte[] resourceBytes = ((JSONResource) this.response).getJSONObject().toString().getBytes();
    int contentLength = resourceBytes.length;
    if (compress) {
        response.addHeader("Content-encoding", "gzip");
        ByteArrayOutputStream outputByteStream = new ByteArrayOutputStream();
        GZIPOutputStream gzipOutputStream = new GZIPOutputStream(outputByteStream);
        gzipOutputStream.write(resourceBytes);
        gzipOutputStream.finish(); //     ??!
        contentLength = outputByteStream.toByteArray().length;
        gzipOutputStream.close();
        outputByteStream.close();

        outputStream = new GZIPOutputStream(response.getOutputStream());
    } else {
        outputStream = response.getOutputStream();
    }
    response.addHeader("Content-Length", String.valueOf(contentLength));

    if (this.response instanceof JSONResource) {
        ((JSONResource) this.response).setPrettify(prettify);
    }
    if (callbackFunctionName == null) {
        this.response.write(outputStream);
    } else {
        this.response.writeJSONP(outputStream, callbackFunctionName);
    }
    outputStream.close();
}

From source file:net.sf.ehcache.constructs.web.PageInfo.java

/**
 * @param ungzipped the bytes to be gzipped
 * @return gzipped bytes/*from   www  .j  a va2 s. com*/
 */
private byte[] gzip(byte[] ungzipped) throws IOException, AlreadyGzippedException {
    if (isGzipped(ungzipped)) {
        throw new AlreadyGzippedException("The byte[] is already gzipped. It should not be gzipped again.");
    }
    final ByteArrayOutputStream bytes = new ByteArrayOutputStream();
    final GZIPOutputStream gzipOutputStream = new GZIPOutputStream(bytes);
    gzipOutputStream.write(ungzipped);
    gzipOutputStream.close();
    return bytes.toByteArray();
}

From source file:org.hawkular.apm.tests.dist.AbstractITest.java

public byte[] gzipCompression(byte[] bytes) throws IOException {
    if (bytes == null) {
        return null;
    }/*  w w  w  .j  a  va 2 s .  com*/

    ByteArrayOutputStream obj = new ByteArrayOutputStream();
    GZIPOutputStream gzip = new GZIPOutputStream(obj);

    gzip.write(bytes);
    gzip.close();
    return obj.toByteArray();
}

From source file:org.esigate.http.HttpClientRequestExecutorTest.java

private HttpResponse createMockGzippedResponse(String content) throws IOException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    GZIPOutputStream gzos = new GZIPOutputStream(baos);
    byte[] uncompressedBytes = content.getBytes();
    gzos.write(uncompressedBytes, 0, uncompressedBytes.length);
    gzos.close();/*  w ww .  j  a v a 2 s. c o m*/
    byte[] compressedBytes = baos.toByteArray();
    ByteArrayEntity httpEntity = new ByteArrayEntity(compressedBytes);
    httpEntity.setContentType("text/html; charset=ISO-8859-1");
    httpEntity.setContentEncoding("gzip");
    StatusLine statusLine = new BasicStatusLine(new ProtocolVersion("p", 1, 2), HttpStatus.SC_OK, "OK");
    BasicHttpResponse httpResponse = new BasicHttpResponse(statusLine);
    httpResponse.addHeader("Content-type", "text/html; charset=ISO-8859-1");
    httpResponse.addHeader("Content-encoding", "gzip");
    httpResponse.setEntity(httpEntity);
    return httpResponse;
}

From source file:truesculpt.ui.panels.WebFilePanel.java

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    getManagers().getUtilsManager().updateFullscreenWindowStatus(getWindow());

    setContentView(R.layout.webfile);//from   ww w. java 2s  .c  om

    getManagers().getUsageStatisticsManager().TrackEvent("OpenFromWeb", "", 1);

    mWebView = (WebView) findViewById(R.id.webview);
    mWebView.setWebViewClient(new MyWebViewClient());
    WebSettings webSettings = mWebView.getSettings();
    webSettings.setJavaScriptEnabled(true);
    mWebView.addJavascriptInterface(new JavaScriptInterface(this, getManagers()), "Android");

    int nVersionCode = getManagers().getUpdateManager().getCurrentVersionCode();
    mWebView.loadUrl(mStrBaseWebSite + "?version=" + nVersionCode);

    mPublishToWebBtn = (Button) findViewById(R.id.publish_to_web);
    mPublishToWebBtn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            final String name = getManagers().getMeshManager().getName();
            final File imagefile = new File(getManagers().getFileManager().GetImageFileName());
            final File objectfile = new File(getManagers().getFileManager().GetObjectFileName());

            getManagers().getUsageStatisticsManager().TrackEvent("PublishToWeb", name, 1);

            if (imagefile.exists() && objectfile.exists()) {
                try {
                    final File zippedObject = File.createTempFile("object", "zip");
                    zippedObject.deleteOnExit();

                    BufferedReader in = new BufferedReader(new FileReader(objectfile));
                    BufferedOutputStream out = new BufferedOutputStream(
                            new GZIPOutputStream(new FileOutputStream(zippedObject)));
                    System.out.println("Compressing file");
                    int c;
                    while ((c = in.read()) != -1) {
                        out.write(c);
                    }
                    in.close();
                    out.close();

                    long size = 0;

                    size = new FileInputStream(imagefile).getChannel().size();
                    size += new FileInputStream(zippedObject).getChannel().size();
                    size /= 1000;

                    final SpannableString msg = new SpannableString(
                            "You will upload your latest saved version of this scupture representing " + size
                                    + " ko of data\n\n"
                                    + "When clicking the yes button you accept to publish your sculpture under the terms of the creative commons share alike, non commercial license\n"
                                    + "http://creativecommons.org/licenses/by-nc-sa/3.0"
                                    + "\n\nDo you want to proceed ?");
                    Linkify.addLinks(msg, Linkify.ALL);

                    AlertDialog.Builder builder = new AlertDialog.Builder(WebFilePanel.this);
                    builder.setMessage(msg).setCancelable(false)
                            .setPositiveButton(R.string.yes, new DialogInterface.OnClickListener() {
                                @Override
                                public void onClick(DialogInterface dialog, int id) {
                                    PublishPicture(imagefile, zippedObject, name);
                                }
                            }).setNegativeButton(R.string.no, new DialogInterface.OnClickListener() {
                                @Override
                                public void onClick(DialogInterface dialog, int id) {

                                }
                            });
                    AlertDialog dlg = builder.create();
                    dlg.show();

                    // Make the textview clickable. Must be called after
                    // show()
                    ((TextView) dlg.findViewById(android.R.id.message))
                            .setMovementMethod(LinkMovementMethod.getInstance());
                } catch (Exception e) {
                    e.printStackTrace();
                }
            } else {
                AlertDialog.Builder builder = new AlertDialog.Builder(WebFilePanel.this);
                builder.setMessage(
                        "File has not been saved, you need to save it before publishing\nDo you want to proceed to save window ?")
                        .setCancelable(false)
                        .setPositiveButton(R.string.yes, new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int id) {
                                ((FileSelectorPanel) getParent()).getTabHost().setCurrentTab(2);
                            }
                        }).setNegativeButton(R.string.no, new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int id) {
                            }
                        });
                builder.show();
            }
        }
    });
}