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:com.jaspersoft.jasperserver.api.metadata.common.domain.util.GzipDataContainer.java

public InputStream getInputStream() {
    InputStream in = decorated.getInputStream();
    if (in == null) {
        return null;
    }/*from  w  w w.ja  v a2s.  co  m*/

    try {
        return new GZIPInputStream(in);
    } catch (IOException e) {
        throw new JSExceptionWrapper(e);
    }
}

---

From source file:com.github.helenusdriver.commons.lang3.SerializationUtils.java

/**
 * Decompresses and deserializes an object from the specified stream.
 * <p>/*from w w w .  j a  va  2  s  .co  m*/
 * The stream will be closed once the object is written. This
 * avoids the need for a finally clause, and maybe also exception
 * handling, in the application code.
 * <p>
 * The stream passed in is not buffered internally within this method.
 * This is the responsibility of your application if desired.
 *
 * @author paouelle
 *
 * @param  inputStream the serialized object input stream
 * @return the corresponding object
 * @throws NullPointerException if <code>outputStream</code> is <code>null</code>
 * @throws SerializationException (runtime) if the serialization fails
 */
public static Object decompressAndDeserialize(InputStream inputStream) {
    org.apache.commons.lang3.Validate.notNull(inputStream, "invalid null inputStream");
    try {
        final GZIPInputStream is = new GZIPInputStream(inputStream);

        return org.apache.commons.lang3.SerializationUtils.deserialize(is);
    } catch (IOException e) {
        throw new SerializationException(e);
    }
}

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From source file:com.linkedin.pinot.core.data.readers.AvroRecordReader.java

@Override
public void init() throws Exception {
    final File file = new File(_fileName);
    if (!file.exists()) {
        throw new FileNotFoundException("File is not existed!");
    }//from   w  w w  .  j a va2s.c om
    //_schemaExtractor = FieldExtractorFactory.get(_dataReaderSpec);
    if (_fileName.endsWith("gz")) {
        _dataStream = new DataFileStream<GenericRecord>(new GZIPInputStream(new FileInputStream(file)),
                new GenericDatumReader<GenericRecord>());
    } else {
        _dataStream = new DataFileStream<GenericRecord>(new FileInputStream(file),
                new GenericDatumReader<GenericRecord>());
    }
}

---

From source file:carmen.utils.Utils.java

public static Scanner createScanner(String inputFile) throws IOException {
    InputStream inputStream = null;
    if (new File(inputFile).getName().endsWith(".gz")) {
        inputStream = new BufferedInputStream(new GZIPInputStream(new FileInputStream(inputFile)));
    } else {/*  w  ww .  j a  v a  2 s  . c om*/
        inputStream = new BufferedInputStream(new FileInputStream(inputFile));
    }
    return new Scanner(inputStream, "UTF-8");
}

---

From source file:net.darkmist.clf.IndexedLogFileHandler.java

/** Checks for index file and presence of the user in the index if it exists.
 * @param file The log file being examined
 * @param base The base name of the log file
 * @return true if the index file exists and the index file does NOT contain the user.
 */// w w w.  ja v  a2  s. c  o  m
private boolean notInIndex(File file, String base) {
    File dir;
    File index;
    InputStream in = null;
    String previousThreadName;
    Thread thread;
    int bufSize;

    if ((dir = file.getParentFile()) == null) {
        logger.warn("Log file " + file + " doesn't have a parent directory?");
        return false;
    }
    index = new File(dir, base + INDEX_EXT);
    if (!index.exists()) {
        if (logger.isDebugEnabled())
            logger.debug("no index file " + index + " for log file " + file);
        return false;
    }
    thread = Thread.currentThread();
    previousThreadName = thread.getName();
    thread.setName("idx: " + index);
    if (logger.isDebugEnabled())
        logger.debug("index scan of " + index);
    bufSize = (int) Math.min(index.length(), MAX_BUF_SIZE);
    try {
        in = new GZIPInputStream(new BufferedInputStream(new FileInputStream(index), bufSize));
        if (LineMatcher.readerContains(usrPat, new BufferedReader(new InputStreamReader(in)))) {
            logger.debug("found usr in index");
            return false;
        }
        logger.debug("did not find usr in index");
        return true;
    } catch (IOException e) {
        logger.warn("IOException reading from index " + index, e);
    } finally {
        in = Util.close(in, logger, index.toString());
        thread.setName(previousThreadName);
    }
    return false;
}

---

From source file:com.omertron.thetvdbapi.tools.WebBrowser.java

/**
 * Request the web page at the specified URL
 *
 * @param url/*w w  w  . j  a va 2 s  .  co m*/
 * @throws IOException
 */
public static String request(URL url) throws IOException {
    StringBuilder content = new StringBuilder();

    BufferedReader in = null;
    URLConnection cnx = null;
    InputStreamReader isr = null;
    GZIPInputStream zis = null;

    try {
        cnx = openProxiedConnection(url);

        sendHeader(cnx);
        readHeader(cnx);

        // Check the content encoding of the connection. Null content encoding is standard HTTP
        if (cnx.getContentEncoding() == null) {
            //in = new BufferedReader(new InputStreamReader(cnx.getInputStream(), getCharset(cnx)));
            isr = new InputStreamReader(cnx.getInputStream(), "UTF-8");
        } else if (cnx.getContentEncoding().equalsIgnoreCase("gzip")) {
            zis = new GZIPInputStream(cnx.getInputStream());
            isr = new InputStreamReader(zis, "UTF-8");
        } else {
            return "";
        }

        in = new BufferedReader(isr);

        String line;
        while ((line = in.readLine()) != null) {
            content.append(line);
        }
    } finally {
        if (in != null) {
            try {
                in.close();
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }

        if (isr != null) {
            try {
                isr.close();
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }

        if (zis != null) {
            try {
                zis.close();
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }

        if (cnx instanceof HttpURLConnection) {
            ((HttpURLConnection) cnx).disconnect();
        }
    }
    return content.toString();
}

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From source file:com.vk.sdk.api.httpClient.VKHttpOperation.java

/**
 * Start current prepared http-operation for result
 *//*from  w  ww  . j  a  va  2 s.  co  m*/
@Override
public void start() {
    setState(VKOperationState.Executing);
    try {
        if (mUriRequest.isAborted())
            return;
        response = VKHttpClient.getClient().execute(mUriRequest);
        InputStream inputStream = response.getEntity().getContent();
        Header contentEncoding = response.getFirstHeader("Content-Encoding");
        if (contentEncoding != null && contentEncoding.getValue().equalsIgnoreCase("gzip")) {
            inputStream = new GZIPInputStream(inputStream);
        }

        if (outputStream == null) {
            outputStream = new ByteArrayOutputStream();
        }

        byte[] buffer = new byte[1024];
        int bytesRead;
        while ((bytesRead = inputStream.read(buffer)) != -1)
            outputStream.write(buffer, 0, bytesRead);
        inputStream.close();
        outputStream.flush();
        if (outputStream instanceof ByteArrayOutputStream) {
            mResponseBytes = ((ByteArrayOutputStream) outputStream).toByteArray();
        }
        outputStream.close();
    } catch (Exception e) {
        mLastException = e;
    }
    setState(VKOperationState.Finished);
}

---

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

@Test
public void testCompressedSerialization() throws Exception {
    // Check that compressed json serialization works correctly.
    byte[] compressedJson = viewInfo.toCompressedJson();
    GZIPInputStream zipIn = new GZIPInputStream(new ByteArrayInputStream(compressedJson));
    assertEquals(JSON, new String(IOUtils.toByteArray(zipIn)));

    // Check that compressed json deserialization works correctly.
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    GZIPOutputStream zipOut = new GZIPOutputStream(out);
    zipOut.write(JSON.getBytes());/*from w  w w.ja va  2s . com*/
    zipOut.close();
    assertEquals(viewInfo, ViewInfo.fromCompressedJson(out.toByteArray()));
}

---

From source file:cn.keke.travelmix.publictransport.type.EfaConnectionResponseHandler.java

public void handle(HttpResponse response) throws IOException {
    if (this.job.isFinished()) {
        return;/*w w  w  .  j  av  a 2 s  .  c  om*/
    }
    HttpEntity entity = response.getEntity();
    BufferedInputStream in;
    if (this.zipped) {
        in = new BufferedInputStream(new GZIPInputStream(entity.getContent()));
    } else {
        in = new BufferedInputStream(entity.getContent());
    }

    String responseText = IOUtils.toString(in, CHARSET_ISO_8859_1);
    if (this.job.isFinished()) {
        return;
    }
    // LOG.info("PT response: " + responseText);
    LinkedList<PartialRoute> partialRoutes = parseExternalRouteResponse(responseText);
    if (!partialRoutes.isEmpty()) {
        LOG.info("Got " + partialRoutes.size() + " partial routes");
        if (!this.job.setFinished(this.url)) {
            return;
        }
        RouteResult result = readRouteInfo(partialRoutes);
        createRouteResponse(this.sb, result);
        this.job.setHandled();
    } else {
        LOG.info("No partial routes received: " + url);
    }
}

---

From source file:net.myrrix.common.io.IOUtils.java

/**
 * Opens an {@link InputStream} to the file. If it appears to be compressed, because its file name ends in
 * ".gz" or ".zip" or ".deflate", then it will be decompressed accordingly
 *
 * @param file file, possibly compressed, to open
 * @return {@link InputStream} on uncompressed contents
 * @throws IOException if the stream can't be opened or is invalid or can't be read
 *///  w ww . j  a v  a2 s .c  o m
public static InputStream openMaybeDecompressing(File file) throws IOException {
    String name = file.getName();
    InputStream in = new FileInputStream(file);
    if (name.endsWith(".gz")) {
        return new GZIPInputStream(in);
    }
    if (name.endsWith(".zip")) {
        return new ZipInputStream(in);
    }
    if (name.endsWith(".deflate")) {
        return new InflaterInputStream(in);
    }
    if (name.endsWith(".bz2") || name.endsWith(".bzip2")) {
        return new BZip2CompressorInputStream(in);
    }
    return in;
}

---

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