Example usage for java.util.zip GZIPInputStream GZIPInputStream

Introduction

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

Prototype

public GZIPInputStream(InputStream in) throws IOException 

Source Link

Document

Creates a new input stream with a default buffer size.

Usage

From source file:lucee.commons.io.compress.CompressUtil.java

private static void extractGZip(Resource source, Resource target) throws IOException {
    InputStream is = null;//w  ww .j  a v  a 2s  .c  om
    OutputStream os = null;
    try {
        is = new GZIPInputStream(IOUtil.toBufferedInputStream(source.getInputStream()));
        os = IOUtil.toBufferedOutputStream(target.getOutputStream());
        IOUtil.copy(is, os, false, false);
    } finally {
        IOUtil.closeEL(is, os);
    }
}

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From source file:cc.creativecomputing.io.CCIOUtil.java

static public InputStream openStream(final String theFileName) {
    InputStream myResult = createStream(theFileName);

    if (myResult == null)
        throw new CCIOException("Could not open the given file:" + theFileName);
    String myExtension = fileExtension(theFileName);
    try {//from   w w  w  .j ava  2  s .c  o  m
        if (myExtension.equals("bz2")) {
            int first = myResult.read();
            int second = myResult.read();
            if (first != 'B' || second != 'Z')
                throw new RuntimeException("Didn't find BZ file signature in .bz2 file");
            return new CBZip2InputStream(myResult);
        }
        if (myExtension.equals("gz"))
            return new GZIPInputStream(myResult);

        return myResult;
    } catch (Exception e) {
        throw new RuntimeException("Could not open the given file:" + theFileName, e);
    }
}

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From source file:net.solarnetwork.node.support.HttpClientSupport.java

/**
 * Get an InputStream from a URLConnection response, handling compression.
 * /*w  ww . j  a va2  s .c  om*/
 * <p>
 * This method handles decompressing the response if the encoding is set to
 * {@code gzip} or {@code deflate}.
 * </p>
 * 
 * @param conn
 *        the URLConnection
 * @return the InputStream
 * @throws IOException
 *         if any IO error occurs
 */
protected InputStream getInputStreamFromURLConnection(URLConnection conn) throws IOException {
    String enc = conn.getContentEncoding();
    String type = conn.getContentType();

    if (conn instanceof HttpURLConnection) {
        HttpURLConnection httpConn = (HttpURLConnection) conn;
        if (httpConn.getResponseCode() < 200 || httpConn.getResponseCode() > 299) {
            log.info("Non-200 HTTP response from {}: {}", conn.getURL(), httpConn.getResponseCode());
        }
    }

    log.trace("Got content type [{}] encoded as [{}]", type, enc);

    InputStream is = conn.getInputStream();
    if ("gzip".equalsIgnoreCase(enc)) {
        is = new GZIPInputStream(is);
    } else if ("deflate".equalsIgnoreCase("enc")) {
        is = new DeflaterInputStream(is);
    }
    return is;
}

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From source file:com.lumata.lib.lupa.internal.ScraperImplIntegrationTest.java

private BufferedReader createReader() throws IOException {
    return new BufferedReader(new InputStreamReader(
            new GZIPInputStream(ScraperImplIntegrationTest.class.getResourceAsStream(URLS_FILE))));
}

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From source file:de.huxhorn.lilith.jul.xml.JulImportCallable.java

public Long call() throws Exception {
    if (!inputFile.isFile()) {
        throw new IllegalArgumentException("'" + inputFile.getAbsolutePath() + "' is not a file!");
    }//from   w  w  w . j a v  a 2 s . com
    if (!inputFile.canRead()) {
        throw new IllegalArgumentException("'" + inputFile.getAbsolutePath() + "' is not a readable!");
    }
    long fileSize = inputFile.length();
    setNumberOfSteps(fileSize);
    FileInputStream fis = new FileInputStream(inputFile);
    CountingInputStream cis = new CountingInputStream(fis);

    String fileName = inputFile.getName().toLowerCase(Locale.US);
    XMLStreamReader xmlStreamReader;
    Reader reader;
    if (fileName.endsWith(".gz")) {
        reader = new InputStreamReader(new GZIPInputStream(cis), StandardCharsets.UTF_8);
    } else {
        reader = new InputStreamReader(cis, StandardCharsets.UTF_8);
    }

    xmlStreamReader = XML_INPUT_FACTORY.createXMLStreamReader(new ReplaceInvalidXmlCharacterReader(reader));
    for (;;) {
        try {
            LoggingEvent event = loggingEventReader.read(xmlStreamReader);
            setCurrentStep(cis.getByteCount());
            if (event == null) {
                break;
            }
            result++;
            EventWrapper<LoggingEvent> wrapper = new EventWrapper<>();
            wrapper.setEvent(event);
            SourceIdentifier sourceIdentifier = new SourceIdentifier(inputFile.getAbsolutePath());
            EventIdentifier eventId = new EventIdentifier(sourceIdentifier, result);
            wrapper.setEventIdentifier(eventId);
            buffer.add(wrapper);
        } catch (XMLStreamException ex) {
            if (logger.isWarnEnabled())
                logger.warn("Exception while importing...", ex);
        }
    }
    return result;
}

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From source file:com.cloudera.knittingboar.utils.Utils.java

/**
 * Ungzip an input file into an output file.
 * <p>// w w  w. j ava  2 s .co m
 * The output file is created in the output folder, having the same name as
 * the input file, minus the '.gz' extension.
 * 
 * @param inputFile
 *          the input .gz file
 * @param outputDir
 *          the output directory file.
 * @throws IOException
 * @throws FileNotFoundException
 * 
 * @return The {@File} with the ungzipped content.
 */
private static File unGzip(final File inputFile, final File outputDir)
        throws FileNotFoundException, IOException {

    System.out.println(String.format("Ungzipping %s to dir %s.", inputFile.getAbsolutePath(),
            outputDir.getAbsolutePath()));

    final File outputFile = new File(outputDir,
            inputFile.getName().substring(0, inputFile.getName().length() - 3));

    final GZIPInputStream in = new GZIPInputStream(new FileInputStream(inputFile));
    final FileOutputStream out = new FileOutputStream(outputFile);

    for (int c = in.read(); c != -1; c = in.read()) {
        out.write(c);
    }

    in.close();
    out.close();

    return outputFile;
}

---

From source file:com.pinterest.terrapin.zookeeper.ViewInfo.java

public static ViewInfo fromCompressedJson(byte[] compressedJson) throws Exception {
    ByteArrayInputStream in = new ByteArrayInputStream(compressedJson);
    GZIPInputStream zipIs = new GZIPInputStream(in);
    ViewInfo viewInfo = fromJson(IOUtils.toByteArray(zipIs));
    in.close();/*from  w  w w . j  a  v  a  2s  . c  o  m*/
    zipIs.close();
    return viewInfo;
}

---

From source file:com.osamashabrez.clientserver.json.ClientServerJSONActivity.java

/** Called when the activity is first created. */
@Override/*from w  w  w .  j  a  va2 s.  c  o  m*/
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    buildref = (EditText) findViewById(R.id.editTextbuild);
    buildref.setFocusable(false);
    buildref.setClickable(false);
    recvdref = (EditText) findViewById(R.id.editTextrecvd);
    recvdref.setFocusable(false);
    recvdref.setClickable(false);
    JSONObject jsonobj; // declared locally so that it destroys after serving its purpose
    jsonobj = new JSONObject();
    try {
        // adding some keys
        jsonobj.put("key", "value");
        jsonobj.put("weburl", "hashincludetechnology.com");

        // lets add some headers (nested headers)
        JSONObject header = new JSONObject();
        header.put("devicemodel", android.os.Build.MODEL); // Device model
        header.put("deviceVersion", android.os.Build.VERSION.RELEASE); // Device OS version
        header.put("language", Locale.getDefault().getISO3Language()); // Language
        jsonobj.put("header", header);
        // Display the contents of the JSON objects
        buildref.setText(jsonobj.toString(2));
    } catch (JSONException ex) {
        buildref.setText("Error Occurred while building JSON");
        ex.printStackTrace();
    }
    // Now lets begin with the server part
    try {
        DefaultHttpClient httpclient = new DefaultHttpClient();
        HttpPost httppostreq = new HttpPost(wurl);
        StringEntity se = new StringEntity(jsonobj.toString());
        //se.setContentType(new BasicHeader(HTTP.CONTENT_TYPE, "application/json"));
        se.setContentType("application/json;charset=UTF-8");
        se.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE, "application/json;charset=UTF-8"));
        httppostreq.setEntity(se);
        //           httppostreq.setHeader("Accept", "application/json");
        //           httppostreq.setHeader("Content-type", "application/json");
        //           httppostreq.setHeader("User-Agent", "android");
        HttpResponse httpresponse = httpclient.execute(httppostreq);
        HttpEntity resultentity = httpresponse.getEntity();
        if (resultentity != null) {
            InputStream inputstream = resultentity.getContent();
            Header contentencoding = httpresponse.getFirstHeader("Content-Encoding");
            if (contentencoding != null && contentencoding.getValue().equalsIgnoreCase("gzip")) {
                inputstream = new GZIPInputStream(inputstream);
            }

            String resultstring = convertStreamToString(inputstream);
            inputstream.close();
            resultstring = resultstring.substring(1, resultstring.length() - 1);
            recvdref.setText(resultstring + "\n\n" + httppostreq.toString().getBytes());
            //              JSONObject recvdjson = new JSONObject(resultstring);
            //               recvdref.setText(recvdjson.toString(2));
        }
    } catch (Exception e) {
        recvdref.setText("Error Occurred while processing JSON");
        recvdref.setText(e.getMessage());
    }
}

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From source file:com.sun.faces.renderkit.ResponseStateManagerImpl.java

public Object getTreeStructureToRestore(FacesContext context, String treeId) {
    StateManager stateManager = Util.getStateManager(context);

    Object structure = null;/*  w w w.  j  a v  a 2s . co  m*/
    Object state = null;
    ByteArrayInputStream bis = null;
    GZIPInputStream gis = null;
    ObjectInputStream ois = null;
    boolean compress = isCompressStateSet(context);

    Map requestParamMap = context.getExternalContext().getRequestParameterMap();

    String viewString = (String) requestParamMap.get(RIConstants.FACES_VIEW);
    if (viewString == null) {
        return null;
    }
    if (stateManager.isSavingStateInClient(context)) {
        byte[] bytes = Base64.decode(viewString.getBytes());
        try {
            bis = new ByteArrayInputStream(bytes);
            if (isCompressStateSet(context)) {
                if (log.isDebugEnabled()) {
                    log.debug("Deflating state before restoring..");
                }
                gis = new GZIPInputStream(bis);
                ois = new ApplicationObjectInputStream(gis);
            } else {
                ois = new ApplicationObjectInputStream(bis);
            }
            structure = ois.readObject();
            state = ois.readObject();
            Map requestMap = context.getExternalContext().getRequestMap();
            // store the state object temporarily in request scope until it is
            // processed by getComponentStateToRestore which resets it.
            requestMap.put(FACES_VIEW_STATE, state);
            bis.close();
            if (compress) {
                gis.close();
            }
            ois.close();
        } catch (java.io.OptionalDataException ode) {
            log.error(ode.getMessage(), ode);
            throw new FacesException(ode);
        } catch (java.lang.ClassNotFoundException cnfe) {
            log.error(cnfe.getMessage(), cnfe);
            throw new FacesException(cnfe);
        } catch (java.io.IOException iox) {
            log.error(iox.getMessage(), iox);
            throw new FacesException(iox);
        }
    } else {
        structure = viewString;
    }
    return structure;
}

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From source file:edu.umn.cs.spatialHadoop.nasa.HDFRasterLayer.java

@Override
public void readFields(DataInput in) throws IOException {
    super.readFields(in);
    this.timestamp = in.readLong();
    int length = in.readInt();
    byte[] serializedData = new byte[length];
    in.readFully(serializedData);//from   w ww  .  ja v  a2 s. c o m
    ByteArrayInputStream bais = new ByteArrayInputStream(serializedData);
    GZIPInputStream gzis = new GZIPInputStream(bais);

    byte[] buffer = new byte[8];
    gzis.read(buffer);
    ByteBuffer bbuffer = ByteBuffer.wrap(buffer);
    int width = bbuffer.getInt();
    int height = bbuffer.getInt();
    // Reallocate memory only if needed
    if (width != this.getWidth() || height != this.getHeight()) {
        sum = new long[width][height];
        count = new long[width][height];
    }
    buffer = new byte[getHeight() * 2 * 8];
    for (int x = 0; x < getWidth(); x++) {
        int size = 0;
        while (size < buffer.length) {
            size += gzis.read(buffer, size, buffer.length - size);
        }
        bbuffer = ByteBuffer.wrap(buffer);
        for (int y = 0; y < getHeight(); y++) {
            sum[x][y] = bbuffer.getLong();
            count[x][y] = bbuffer.getLong();
        }
    }
}

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