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.twentyn.patentExtractor.Util.java

public static byte[] compressXMLDocument(Document doc)
        throws IOException, TransformerConfigurationException, TransformerException {
    Transformer transformer = getTransformerFactory().newTransformer();
    // The OutputKeys.INDENT configuration key determines whether the output is indented.

    DOMSource w3DomSource = new DOMSource(doc);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    Writer w = new BufferedWriter(new OutputStreamWriter(
            new GZIPOutputStream(new Base64OutputStream(baos, true, 0, new byte[] { '\n' }))));
    StreamResult sResult = new StreamResult(w);
    transformer.transform(w3DomSource, sResult);
    w.close();//from  w w w.j av  a2 s .co  m
    return baos.toByteArray();
}

From source file:com.panet.imeta.www.GetTransStatusServlet.java

protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    if (!request.getContextPath().equals(CONTEXT_PATH))
        return;//  w  w  w .j  av a2s.co  m

    if (log.isDebug())
        log.logDebug(toString(), Messages.getString("TransStatusServlet.Log.TransStatusRequested"));

    String transName = request.getParameter("name");
    boolean useXML = "Y".equalsIgnoreCase(request.getParameter("xml"));

    response.setStatus(HttpServletResponse.SC_OK);

    if (useXML) {
        response.setContentType("text/xml");
        response.setCharacterEncoding(Const.XML_ENCODING);
    } else {
        response.setContentType("text/html");
    }

    PrintWriter out = response.getWriter();

    Trans trans = transformationMap.getTransformation(transName);

    if (trans != null) {
        String status = trans.getStatus();

        if (useXML) {
            response.setContentType("text/xml");
            response.setCharacterEncoding(Const.XML_ENCODING);
            out.print(XMLHandler.getXMLHeader(Const.XML_ENCODING));

            SlaveServerTransStatus transStatus = new SlaveServerTransStatus(transName, status);

            for (int i = 0; i < trans.nrSteps(); i++) {
                BaseStep baseStep = trans.getRunThread(i);
                if ((baseStep.isAlive()) || baseStep.getStatus() != StepDataInterface.STATUS_EMPTY) {
                    StepStatus stepStatus = new StepStatus(baseStep);
                    transStatus.getStepStatusList().add(stepStatus);
                }
            }

            Log4jStringAppender appender = (Log4jStringAppender) transformationMap.getAppender(transName);
            if (appender != null) {
                // The log can be quite large at times, we are going to put a base64 encoding around a compressed stream
                // of bytes to handle this one.

                ByteArrayOutputStream baos = new ByteArrayOutputStream();
                GZIPOutputStream gzos = new GZIPOutputStream(baos);
                gzos.write(appender.getBuffer().toString().getBytes());
                gzos.close();

                String loggingString = new String(Base64.encodeBase64(baos.toByteArray()));
                transStatus.setLoggingString(loggingString);
            }

            // Also set the result object...
            //
            transStatus.setResult(trans.getResult());

            // Is the transformation paused?
            //
            transStatus.setPaused(trans.isPaused());

            // Send the result back as XML
            //
            out.println(transStatus.getXML());
        } else {
            response.setContentType("text/html");

            out.println("<HTML>");
            out.println("<HEAD>");
            out.println("<TITLE>" + Messages.getString("TransStatusServlet.KettleTransStatus") + "</TITLE>");
            out.println("<META http-equiv=\"Refresh\" content=\"10;url=/kettle/transStatus?name="
                    + URLEncoder.encode(transName, "UTF-8") + "\">");
            out.println("</HEAD>");
            out.println("<BODY>");
            out.println("<H1>" + Messages.getString("TransStatusServlet.TopTransStatus", transName) + "</H1>");

            try {
                out.println("<table border=\"1\">");
                out.print("<tr> <th>" + Messages.getString("TransStatusServlet.TransName") + "</th> <th>"
                        + Messages.getString("TransStatusServlet.TransStatus") + "</th> </tr>");

                out.print("<tr>");
                out.print("<td>" + transName + "</td>");
                out.print("<td>" + status + "</td>");
                out.print("</tr>");
                out.print("</table>");

                out.print("<p>");

                if ((trans.isFinished() && trans.isRunning())
                        || (!trans.isRunning() && !trans.isPreparing() && !trans.isInitializing())) {
                    out.print("<a href=\"/kettle/startTrans?name=" + URLEncoder.encode(transName, "UTF-8")
                            + "\">" + Messages.getString("TransStatusServlet.StartTrans") + "</a>");
                    out.print("<p>");
                    out.print("<a href=\"/kettle/prepareExec?name=" + URLEncoder.encode(transName, "UTF-8")
                            + "\">" + Messages.getString("TransStatusServlet.PrepareTrans") + "</a><br>");
                    //out.print("<a href=\"/kettle/startExec?name="+URLEncoder.encode(transName, "UTF-8")+"\">" + Messages.getString("TransStatusServlet.StartTrans") + "</a><p>");
                } else if (trans.isRunning()) {
                    out.print("<a href=\"/kettle/pauseTrans?name=" + URLEncoder.encode(transName, "UTF-8")
                            + "\">" + Messages.getString("PauseStatusServlet.PauseResumeTrans") + "</a><br>");
                    out.print("<a href=\"/kettle/stopTrans?name=" + URLEncoder.encode(transName, "UTF-8")
                            + "\">" + Messages.getString("TransStatusServlet.StopTrans") + "</a>");
                    out.print("<p>");
                }
                out.print("<a href=\"/kettle/cleanupTrans?name=" + URLEncoder.encode(transName, "UTF-8") + "\">"
                        + Messages.getString("TransStatusServlet.CleanupTrans") + "</a>");
                out.print("<p>");

                out.println("<table border=\"1\">");
                out.print("<tr> <th>" + Messages.getString("TransStatusServlet.Stepname") + "</th> <th>"
                        + Messages.getString("TransStatusServlet.CopyNr") + "</th> <th>"
                        + Messages.getString("TransStatusServlet.Read") + "</th> <th>"
                        + Messages.getString("TransStatusServlet.Written") + "</th> <th>"
                        + Messages.getString("TransStatusServlet.Input") + "</th> <th>"
                        + Messages.getString("TransStatusServlet.Output") + "</th> " + "<th>"
                        + Messages.getString("TransStatusServlet.Updated") + "</th> <th>"
                        + Messages.getString("TransStatusServlet.Rejected") + "</th> <th>"
                        + Messages.getString("TransStatusServlet.Errors") + "</th> <th>"
                        + Messages.getString("TransStatusServlet.Active") + "</th> <th>"
                        + Messages.getString("TransStatusServlet.Time") + "</th> " + "<th>"
                        + Messages.getString("TransStatusServlet.Speed") + "</th> <th>"
                        + Messages.getString("TransStatusServlet.prinout") + "</th> </tr>");

                for (int i = 0; i < trans.nrSteps(); i++) {
                    BaseStep baseStep = trans.getRunThread(i);
                    if ((baseStep.isAlive()) || baseStep.getStatus() != StepDataInterface.STATUS_EMPTY) {
                        StepStatus stepStatus = new StepStatus(baseStep);
                        out.print(stepStatus.getHTMLTableRow());
                    }
                }
                out.println("</table>");
                out.println("<p>");

                out.print("<a href=\"/kettle/transStatus/?name=" + URLEncoder.encode(transName, "UTF-8")
                        + "&xml=y\">" + Messages.getString("TransStatusServlet.ShowAsXml") + "</a><br>");
                out.print("<a href=\"/kettle/status\">"
                        + Messages.getString("TransStatusServlet.BackToStatusPage") + "</a><br>");
                out.print("<p><a href=\"/kettle/transStatus?name=" + URLEncoder.encode(transName, "UTF-8")
                        + "\">" + Messages.getString("TransStatusServlet.Refresh") + "</a>");

                // Put the logging below that.
                Log4jStringAppender appender = (Log4jStringAppender) transformationMap.getAppender(transName);
                if (appender != null) {
                    out.println("<p>");
                    /*
                    out.println("<pre>");
                    out.println(appender.getBuffer().toString());
                    out.println("</pre>");
                    */
                    out.println(
                            "<textarea id=\"translog\" cols=\"120\" rows=\"20\" wrap=\"off\" name=\"Transformation log\" readonly=\"readonly\">"
                                    + appender.getBuffer().toString() + "</textarea>");

                    out.println("<script type=\"text/javascript\"> ");
                    out.println("  translog.scrollTop=translog.scrollHeight; ");
                    out.println("</script> ");
                    out.println("<p>");
                }
            } catch (Exception ex) {
                out.println("<p>");
                out.println("<pre>");
                ex.printStackTrace(out);
                out.println("</pre>");
            }

            out.println("<p>");
            out.println("</BODY>");
            out.println("</HTML>");
        }
    } else {
        if (useXML) {
            out.println(new WebResult(WebResult.STRING_ERROR,
                    Messages.getString("TransStatusServlet.Log.CoundNotFindSpecTrans", transName)));
        } else {
            out.println("<H1>" + Messages.getString("TransStatusServlet.Log.CoundNotFindTrans", transName)
                    + "</H1>");
            out.println("<a href=\"/kettle/status\">"
                    + Messages.getString("TransStatusServlet.BackToStatusPage") + "</a><p>");

        }
    }
}

From source file:com.wbtech.dao.NetworkUitlity.java

public static AbstractHttpEntity initEntity(byte[] paramArrayOfByte) {
    ByteArrayEntity localByteArrayEntity = null;
    ByteArrayOutputStream localByteArrayOutputStream = new ByteArrayOutputStream();
    GZIPOutputStream localGZIPOutputStream;
    if (paramArrayOfByte.length < paramleng) {
        localByteArrayEntity = new ByteArrayEntity(paramArrayOfByte);
    } else {/*from  w ww. j  a v  a 2 s. c o m*/

        try {
            localGZIPOutputStream = new GZIPOutputStream(localByteArrayOutputStream);
            localGZIPOutputStream.write(paramArrayOfByte);
            localGZIPOutputStream.close();
            localByteArrayEntity = new ByteArrayEntity(localByteArrayOutputStream.toByteArray());
            localByteArrayEntity.setContentEncoding("gzip");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return localByteArrayEntity;
}

From source file:com.xyxy.platform.examples.showcase.demos.web.StaticContentServlet.java

/**
 * Gzip HeaderGZIPOutputStream.// w  ww  .j av  a  2 s  . c  o m
 */
private OutputStream buildGzipOutputStream(HttpServletResponse response) throws IOException {
    response.setHeader("Content-Encoding", "gzip");
    response.setHeader("Vary", "Accept-Encoding");
    return new GZIPOutputStream(response.getOutputStream());
}

From source file:com.github.jrh3k5.flume.mojo.plugin.io.ArchiveUtils.java

/**
 * GZIP a file.//from  ww  w .j  a va 2 s  . c o  m
 * 
 * @param toZip
 *            A {@link File} representing the file to be GZIP'ed.
 * @param toFile
 *            A {@link File} representing the location at which the GZIP
 *            file is to be created.
 * @throws IllegalArgumentException
 *             If the given source file is not a file or does not exist, or
 *             if the given destination file exists but is not a file.
 * @throws IOException
 *             If any errors occur during the GZIP'ing.
 * @see #gunzipFile(File, File)
 */
public void gzipFile(File toZip, File toFile) throws IOException {
    if (!toZip.isFile()) {
        throw new IllegalArgumentException("Source file " + toZip + " must be an existent file.");
    }

    if (toFile.exists() && !toFile.isFile()) {
        throw new IllegalArgumentException("Destination file " + toFile
                + " exists, but is not a file and, as such, cannot be written to.");
    }

    GZIPOutputStream zipOut = null;
    FileInputStream tarIn = null;
    try {
        tarIn = new FileInputStream(toZip);
        zipOut = new GZIPOutputStream(new FileOutputStream(toFile));
        IOUtils.copy(tarIn, zipOut);
    } finally {
        IOUtils.closeQuietly(zipOut);
        IOUtils.closeQuietly(tarIn);
    }
}

From source file:com.kloudtek.buildmagic.tools.createinstaller.deb.CreateDebTask.java

private void prepare() throws IOException {
    // validate parameters
    if (name == null || name.trim().length() == 0) {
        throw new BuildException("name attribute is missing or invalid");
    }/*www .  j ava2s . c o m*/
    if (version == null || version.trim().length() == 0) {
        throw new BuildException("version attribute is missing or invalid");
    }
    if (arch == null || arch.trim().length() == 0) {
        throw new BuildException("arch attribute is missing or invalid");
    }
    if (maintName == null || maintName.trim().length() == 0) {
        throw new BuildException("maintName attribute is missing");
    }
    if (maintEmail == null || maintEmail.trim().length() == 0) {
        throw new BuildException("maintEmail attribute is missing");
    }
    if (priority != null && !PRIORITIES.contains(priority.toLowerCase())) {
        log("Priority '" + priority + "' isn't recognized as a valid value", Project.MSG_WARN);
    }
    if (control != null) {
        for (final TemplateEntry entry : control.getTemplateEntries()) {
            if (entry.getPackageName() == null) {
                entry.setPackageName(name);
            }
            templateEntries.add(entry);
        }
    }
    // generate copyright file
    if (copyrights.isEmpty()) {
        if (license == null) {
            throw new BuildException("No license has been specified");
        }
        if (licenseFile == null) {
            licenseFile = new File("license.txt");
        }
        copyrights.add(new Copyright(license, licenseFile));
    }
    copyrights.validate();
    copyright = dataBufferManager.createBuffer();
    copyrights.write(copyright, this);
    // generate changelog
    changelog = new Changelog(name);
    Changelog.Entry entry = changelog.createEntry();
    changelog.setDistributions("main"); // TODO
    entry.setMaintName(maintName);
    entry.setMaintEmail(maintEmail);
    entry.setChanges("Released");
    entry.setVersion(version);
    entry.setDate(new Date());
    changelog.validate();
    changelogData = changelog.export(Changelog.Type.DEBIAN);
    ByteArrayOutputStream changelogBuf = new ByteArrayOutputStream();
    GZIPOutputStream changelogGzipBuf = new GZIPOutputStream(changelogBuf);
    changelogGzipBuf.write(changelogData.getBytes());
    changelogGzipBuf.finish();
    changelogGzipBuf.close();
    changelogDataGzipped = changelogBuf.toByteArray();
}

From source file:edu.ucsb.eucalyptus.cloud.ws.PutMethodWithProgress.java

@Override
protected boolean writeRequestBody(HttpState state, HttpConnection conn) throws IOException {
    InputStream inputStream;/*from www.  java  2 s  . co m*/
    if (outFile != null) {
        inputStream = new FileInputStream(outFile);

        ChunkedOutputStream chunkedOut = new ChunkedOutputStream(conn.getRequestOutputStream());
        byte[] buffer = new byte[StorageProperties.TRANSFER_CHUNK_SIZE];
        int bytesRead;
        int numberProcessed = 0;
        long totalBytesProcessed = 0;
        while ((bytesRead = inputStream.read(buffer)) > 0) {
            ByteArrayOutputStream out = new ByteArrayOutputStream();
            GZIPOutputStream zip = new GZIPOutputStream(out);
            zip.write(buffer, 0, bytesRead);
            zip.close();
            chunkedOut.write(out.toByteArray());
            totalBytesProcessed += bytesRead;
            if (++numberProcessed >= callback.getUpdateThreshold()) {
                callback.run();
                numberProcessed = 0;
            }
        }
        if (totalBytesProcessed > 0) {
            callback.finish();
        } else {
            callback.failed();
        }
        chunkedOut.finish();
        inputStream.close();
    } else {
        return false;
    }
    return true;
}

From source file:com.eucalyptus.blockstorage.PutMethodWithProgress.java

@Override
protected boolean writeRequestBody(HttpState state, HttpConnection conn) throws IOException {
    InputStream inputStream;// w  ww .  ja v a  2  s  .  com
    if (outFile != null) {
        inputStream = new FileInputStream(outFile);

        ChunkedOutputStream chunkedOut = new ChunkedOutputStream(conn.getRequestOutputStream());
        byte[] buffer = new byte[StorageProperties.TRANSFER_CHUNK_SIZE];
        int bytesRead;
        long totalBytesProcessed = 0;
        while ((bytesRead = inputStream.read(buffer)) > 0) {
            ByteArrayOutputStream out = new ByteArrayOutputStream();
            GZIPOutputStream zip = new GZIPOutputStream(out);
            zip.write(buffer, 0, bytesRead);
            zip.close();
            chunkedOut.write(out.toByteArray());
            totalBytesProcessed += bytesRead;
            callback.update(totalBytesProcessed);
        }
        if (totalBytesProcessed > 0) {
            callback.finish();
        } else {
            callback.failed();
        }
        chunkedOut.finish();
        inputStream.close();
    } else {
        return false;
    }
    return true;
}

From source file:com.android.tradefed.util.TarUtil.java

/**
 * Utility function to gzip (.gz) a file. the .gz extension will be added to base file name.
 *
 * @param inputFile the {@link File} to be gzipped.
 * @return the gzipped file.//www.ja v  a2 s .  co m
 * @throws IOException
 */
public static File gzip(final File inputFile) throws IOException {
    File outputFile = FileUtil.createTempFile(inputFile.getName(), ".gz");
    GZIPOutputStream out = null;
    FileInputStream in = null;
    try {
        out = new GZIPOutputStream(new FileOutputStream(outputFile));
        in = new FileInputStream(inputFile);
        IOUtils.copy(in, out);
    } catch (IOException e) {
        // delete the tmp file if we failed to gzip.
        FileUtil.deleteFile(outputFile);
        throw e;
    } finally {
        StreamUtil.close(in);
        StreamUtil.close(out);
    }
    return outputFile;
}

From source file:io.druid.storage.s3.S3DataSegmentPullerTest.java

@Test
public void testGZUncompressRetries() throws S3ServiceException, IOException, SegmentLoadingException {
    final String bucket = "bucket";
    final String keyPrefix = "prefix/dir/0";
    final RestS3Service s3Client = EasyMock.createStrictMock(RestS3Service.class);
    final byte[] value = bucket.getBytes("utf8");

    final File tmpFile = Files.createTempFile("gzTest", ".gz").toFile();
    tmpFile.deleteOnExit();/*ww w .j  a va2s  .c  o m*/
    try (OutputStream outputStream = new GZIPOutputStream(new FileOutputStream(tmpFile))) {
        outputStream.write(value);
    }

    S3Object object0 = new S3Object();

    object0.setBucketName(bucket);
    object0.setKey(keyPrefix + "/renames-0.gz");
    object0.setLastModifiedDate(new Date(0));
    object0.setDataInputStream(new FileInputStream(tmpFile));

    File tmpDir = Files.createTempDirectory("gzTestDir").toFile();

    S3ServiceException exception = new S3ServiceException();
    exception.setErrorCode("NoSuchKey");
    exception.setResponseCode(404);
    try {
        EasyMock.expect(
                s3Client.getObjectDetails(EasyMock.<S3Bucket>anyObject(), EasyMock.eq(object0.getKey())))
                .andReturn(null).once();
        EasyMock.expect(s3Client.getObject(EasyMock.eq(bucket), EasyMock.eq(object0.getKey())))
                .andThrow(exception).once().andReturn(object0).once();
        S3DataSegmentPuller puller = new S3DataSegmentPuller(s3Client);

        EasyMock.replay(s3Client);
        FileUtils.FileCopyResult result = puller
                .getSegmentFiles(new S3DataSegmentPuller.S3Coords(bucket, object0.getKey()), tmpDir);
        EasyMock.verify(s3Client);

        Assert.assertEquals(value.length, result.size());
        File expected = new File(tmpDir, "renames-0");
        Assert.assertTrue(expected.exists());
        Assert.assertEquals(value.length, expected.length());
    } finally {
        org.apache.commons.io.FileUtils.deleteDirectory(tmpDir);
    }
}