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:com.stacksync.desktop.util.FileUtil.java

public static byte[] gzip(byte[] content) throws IOException {
    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();

    GZIPOutputStream gzipOutputStream = new GZIPOutputStream(byteArrayOutputStream);
    gzipOutputStream.write(content);/*from   w w  w.jav  a  2 s. c o  m*/
    gzipOutputStream.close();

    byte[] result = byteArrayOutputStream.toByteArray();
    byteArrayOutputStream.close();

    return result;
}

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From source file:dk.dma.ais.utils.filter.AisFilter.java

private PrintStream getNextOutputStram() {
    if (outFile == null) {
        throw new Error("No output stream and no out file argument given");
    }//from  w  ww  . j a  v a2 s .  co  m
    String filename;
    if (splitSize == null) {
        filename = outFile;
    } else {
        Path path = Paths.get(outFile);
        filename = String.format("%06d", fileCounter++) + "." + path.getFileName();
        Path dir = path.getParent();
        if (dir != null) {
            filename = dir + "/" + filename;
        }
    }
    if (compress) {
        filename += ".gz";
    }
    try {
        if (!compress) {
            return new PrintStream(filename);
        } else {
            return new PrintStream(new GZIPOutputStream(new FileOutputStream(filename)));
        }
    } catch (IOException e) {
        throw new RuntimeException("Failed to open output file: " + filename, e);
    }
}

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From source file:TextFileHandler.java

public PrintWriter getGZipWriter(String fileName) throws Exception {
    GZIPOutputStream out = new GZIPOutputStream(new FileOutputStream(fileName));
    return new PrintWriter(out);
}

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From source file:de.helmholtz_muenchen.ibis.utils.ngs.samsplitter.helpers.FileHelpers.java

public static BufferedWriter getBufferedWriterOnFile(File file, String format)
        throws FileNotFoundException, IOException {
    BufferedWriter bw;/* w  w w . j  a v a  2s  .  c o  m*/

    if (format.toLowerCase().equals("auto")) {
        format = file.getName();
    }

    if (format.toLowerCase().endsWith("gz")) {
        bw = new BufferedWriter(new OutputStreamWriter(new GZIPOutputStream(new FileOutputStream(file))));
    }
    //            else if(format.toLowerCase().endsWith("bz2"))
    //               {
    //                  bw = new BufferedWriter(new OutputStreamWriter(
    //                        new BZip2OutputStream(new FileOutputStream(file))));
    //               }
    else {
        bw = new BufferedWriter(new FileWriter(file));
    }
    return bw;

}

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From source file:TextFileHandler.java

public void saveGZipFile(File outFile, String content) throws Exception {
    GZIPOutputStream out = new GZIPOutputStream(new FileOutputStream(outFile));
    PrintWriter pw = new PrintWriter(out);
    pw.write(content);// w w  w.  j a va 2 s  .  c  o  m
    pw.flush();
    pw.close();
}

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

private byte[] initializeSidney(JavaSid sid) {
    Writer<T> writer = sid.newWriter(token);

    try {/*www .  java  2  s  .c o m*/
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        GZIPOutputStream gzos = new GZIPOutputStream(baos);
        writer.open(gzos);
        for (T t : sampleData) {
            writer.write(t);
        }
        writer.close();
        gzos.close();
        return baos.toByteArray();
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

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From source file:com.mtgi.analytics.XmlBehaviorEventPersisterImpl.java

/**
 * Force a rotation of the log.  The new archive log will be named <code>[logfile].yyyyMMddHHmmss</code>.
 * If a file of that name already exists, an extra _N will be appended to it, where N is an
 * integer sufficiently large to make the name unique.  This method can be called
 * externally by the Quartz scheduler for periodic rotation, or by an administrator
 * via JMX./*from www  . ja  va 2s. com*/
 */
@ManagedOperation(description = "Force a rotation of the behavior tracking log")
public String rotateLog() throws IOException, XMLStreamException {
    StringBuffer msg = new StringBuffer();
    synchronized (this) {
        //flush current writer and close streams.
        closeWriter();

        //rotate old log data to timestamped archive file.
        File archived = moveToArchive();
        if (archived == null)
            msg.append("No existing log data.");
        else
            msg.append(archived.getAbsolutePath());

        //update output file name, in case binary/compress settings changed since last rotate.
        file = getLogFile(file);

        //perform archive again, in case our file name changed and has pointed us at a preexisting file;
        //this can happen if the system wasn't shut down cleanly the last time.
        moveToArchive();

        //open a new stream, optionally compressed.
        if (compress)
            stream = new GZIPOutputStream(new FileOutputStream(file));
        else
            stream = new BufferedOutputStream(new FileOutputStream(file));

        //open a new writer over the stream.
        if (binary) {
            StAXDocumentSerializer sds = new StAXDocumentSerializer();
            sds.setOutputStream(stream);
            writer = sds;
        } else {
            writer = XMLOutputFactory.newInstance().createXMLStreamWriter(stream);
        }

        writer.writeStartDocument();
        writer.writeStartElement("event-log");
    }
    return msg.toString();
}

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From source file:com.st.maven.debian.DebianPackageMojo.java

private void fillDataTar(Config config, ArFileOutputStream output) throws MojoExecutionException {
    TarArchiveOutputStream tar = null;//from   w  w w .  j a v  a  2 s.co m
    try {
        tar = new TarArchiveOutputStream(new GZIPOutputStream(new ArWrapper(output)));
        tar.setLongFileMode(TarArchiveOutputStream.LONGFILE_GNU);
        if (Boolean.TRUE.equals(javaServiceWrapper)) {
            byte[] daemonData = processTemplate(freemarkerConfig, config, "daemon.ftl");
            TarArchiveEntry initScript = new TarArchiveEntry("etc/init.d/" + project.getArtifactId());
            initScript.setSize(daemonData.length);
            initScript.setMode(040755);
            tar.putArchiveEntry(initScript);
            tar.write(daemonData);
            tar.closeArchiveEntry();
        }
        String packageBaseDir = "home/" + unixUserId + "/" + project.getArtifactId() + "/";
        if (fileSets != null && !fileSets.isEmpty()) {
            writeDirectory(tar, packageBaseDir);

            Collections.sort(fileSets, MappingPathComparator.INSTANCE);
            for (Fileset curPath : fileSets) {
                curPath.setTarget(packageBaseDir + curPath.getTarget());
                addRecursively(config, tar, curPath);
            }
        }

    } catch (Exception e) {
        throw new MojoExecutionException("unable to create data tar", e);
    } finally {
        IOUtils.closeQuietly(tar);
    }
}

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From source file:anhttpclient.AnhttpclientTest.java

@Test
public void testGzipResponse() throws Exception {

    final String responseText = "Hello from SimpleHttperver";

    server.addHandler("/gzip", new ByteArrayHandlerAdapter() {
        public byte[] getResponseAsByteArray(HttpRequestContext httpRequestContext) {
            byte[] out;

            try {
                ByteArrayOutputStream baos = new ByteArrayOutputStream();
                OutputStream os = new GZIPOutputStream(baos);
                os.write(responseText.getBytes());
                os.flush();//from  w  w w .j  a  va2s  .  c o  m
                os.close();
                out = baos.toByteArray();
            } catch (IOException e) {
                throw new RuntimeException(e);
            }

            setResponseHeader("Content-Encoding", "gzip", httpRequestContext);
            return out;
        }
    });

    WebRequest req = new HttpGetWebRequest(server.getBaseUrl() + "/gzip");
    WebResponse resp = wb.getResponse(req);
    assertEquals("Response from server is incorrect", responseText, resp.getText());
}

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From source file:edu.illinois.cs.cogcomp.core.datastructures.Lexicon.java

/**
 * Saves the feature to id mapping. Note: This does not store the feature names.
 *//*from  w w w.j  a  v a 2 s . c o  m*/
public void save(String file) throws IOException {
    BufferedOutputStream stream = new BufferedOutputStream(new GZIPOutputStream(new FileOutputStream(file)));

    final BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(stream));

    writer.write(lexManagerVersion);
    writer.newLine();

    writeInt(writer, nextFeatureId);

    log.info("Lexicon contains {} features", feature2Id.size());

    writeInt(writer, feature2Id.size());

    feature2Id.forEachEntry(new TIntIntProcedure() {

        @Override
        public boolean execute(int a, int b) {
            try {
                writeInt(writer, a);
                writeInt(writer, b);

            } catch (IOException e) {
                throw new RuntimeException(e);
            }
            return true;
        }
    });

    if (featureNames != null) {
        writeInt(writer, featureNames.size());
        for (String s : featureNames) {
            writer.write(s);
            writer.newLine();
        }

    } else {
        writeInt(writer, 0);
    }

    writer.close();

    log.info("Verifying save...");
    new Lexicon(new FileInputStream(new File(file)), false);
    log.info("Done.");
}

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