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:GZIPUtils.java

/**
 * Returns an gunzipped copy of the input array, truncated to
 * <code>sizeLimit</code> bytes, if necessary.  If the gzipped input
 * has been truncated or corrupted, a best-effort attempt is made to
 * unzip as much as possible.  If no data can be extracted
 * <code>null</code> is returned.
 *///from   w  w  w . j  a  va 2  s.  co  m
public static final byte[] unzipBestEffort(byte[] in, int sizeLimit) {
    try {
        // decompress using GZIPInputStream 
        ByteArrayOutputStream outStream = new ByteArrayOutputStream(EXPECTED_COMPRESSION_RATIO * in.length);

        GZIPInputStream inStream = new GZIPInputStream(new ByteArrayInputStream(in));

        byte[] buf = new byte[BUF_SIZE];
        int written = 0;
        while (true) {
            try {
                int size = inStream.read(buf);
                if (size <= 0)
                    break;
                if ((written + size) > sizeLimit) {
                    outStream.write(buf, 0, sizeLimit - written);
                    break;
                }
                outStream.write(buf, 0, size);
                written += size;
            } catch (Exception e) {
                break;
            }
        }
        try {
            outStream.close();
        } catch (IOException e) {
        }

        return outStream.toByteArray();

    } catch (IOException e) {
        return null;
    }
}

From source file:com.breadwallet.tools.util.BRCompressor.java

public static byte[] gZipExtract(byte[] compressed) {
    if (compressed == null || compressed.length == 0)
        return null;
    try {/*  w  w w  .  j av  a 2s.  co m*/
        InputStream isr = new GZIPInputStream(new ByteArrayInputStream(compressed));
        return IOUtils.toByteArray(isr);
    } catch (IOException e) {
        FirebaseCrash.report(e);
        e.printStackTrace();
    }
    return null;
}

From source file:hr.fer.zemris.vhdllab.remoting.GzipHttpInvokerServiceExporter.java

@Override
protected InputStream decorateInputStream(HttpServletRequest request, InputStream is) throws IOException {
    return new GZIPInputStream(is);
}

From source file:net.fenyo.mail4hotspot.service.Browser.java

public static String getHtml(final String target_url, final Cookie[] cookies) throws IOException {
    // log.debug("RETRIEVING_URL=" + target_url);
    final URL url = new URL(target_url);

    final HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    //Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress("10.69.60.6", 3128)); 
    // final HttpURLConnection conn = (HttpURLConnection) url.openConnection(proxy);

    //      HttpURLConnection.setFollowRedirects(true);
    // conn.setRequestProperty("User-agent", "my agent name");

    conn.setRequestProperty("Accept-Language", "en-US");

    //      conn.setRequestProperty(key, value);

    // allow both GZip and Deflate (ZLib) encodings
    conn.setRequestProperty("Accept-Encoding", "gzip, deflate");
    final String encoding = conn.getContentEncoding();
    InputStream is = null;//from   www  . j  a va2s. c o  m
    // create the appropriate stream wrapper based on the encoding type
    if (encoding != null && encoding.equalsIgnoreCase("gzip"))
        is = new GZIPInputStream(conn.getInputStream());
    else if (encoding != null && encoding.equalsIgnoreCase("deflate"))
        is = new InflaterInputStream(conn.getInputStream(), new Inflater(true));
    else
        is = conn.getInputStream();

    final InputStreamReader reader = new InputStreamReader(new BufferedInputStream(is));

    final CharBuffer cb = CharBuffer.allocate(1024 * 1024);
    int ret;
    do {
        ret = reader.read(cb);
    } while (ret > 0);
    cb.flip();
    return cb.toString();
}

From source file:de.blizzy.backup.Compression.java

public InputStream getInputStream(InputStream in) throws IOException {
    if (this == GZIP) {
        return new GZIPInputStream(in);
    }//  w w w . j  a  v a  2  s  .  c om
    if (this == BZIP2) {
        return new BZip2CompressorInputStream(in);
    }
    throw new RuntimeException();
}

From source file:com.insightml.utils.io.IoUtils.java

public static String readFile(final File file) {
    try {// w  ww . j av a2 s  . co m
        if (file.getName().endsWith(".gz")) {
            return readFile(new GZIPInputStream(new FileInputStream(file)), Charsets.UTF_8);
        }
        return Files.toString(file, Charsets.UTF_8);
    } catch (final IOException e) {
        throw new IllegalArgumentException(e);
    }
}

From source file:ch.cyberduck.core.http.GzipDecompressingEntity.java

/**
 * Decompress compressed entity using GZIP
 *
 * @return//  w ww  .  ja  v  a2s .co m
 * @throws IOException
 * @throws IllegalStateException
 */
@Override
public InputStream getContent() throws IOException, IllegalStateException {
    InputStream wrapped = wrappedEntity.getContent();
    // the wrapped entity's getContent() decides about repeatability
    return new GZIPInputStream(wrapped);
}

From source file:com.wenzani.maven.mongodb.TarUtils.java

public String untargz(File archive, File outputDir) {
    String absolutePath = archive.getAbsolutePath();
    String root = null;//www  . ja v a  2s  . c om
    boolean first = true;

    while (absolutePath.contains("tar") || absolutePath.contains("gz") || absolutePath.contains("tgz")) {
        absolutePath = absolutePath.substring(0, absolutePath.lastIndexOf("."));
    }

    absolutePath = absolutePath + ".tar";

    try {
        GZIPInputStream input = new GZIPInputStream(new FileInputStream(archive));
        FileOutputStream fos = new FileOutputStream(new File(absolutePath));

        IOUtils.copy(input, fos);
        IOUtils.closeQuietly(input);
        IOUtils.closeQuietly(fos);

        TarArchiveInputStream tarArchiveInputStream = new TarArchiveInputStream(
                new FileInputStream(absolutePath));

        for (TarArchiveEntry entry = tarArchiveInputStream.getNextTarEntry(); entry != null;) {
            unpackEntries(tarArchiveInputStream, entry, outputDir);

            if (first && entry.isDirectory()) {
                root = outputDir + File.separator + entry.getName();
            }

            entry = tarArchiveInputStream.getNextTarEntry();
        }
    } catch (Exception e) {
        e.printStackTrace();
    }

    return root;
}

From source file:com.proofpoint.http.server.GZipRequestWrapper.java

@Override
public ServletInputStream getInputStream() throws IOException {
    return new ServletInputStreamFromInputStream(new GZIPInputStream(request.getInputStream()));
}

From source file:com.ctriposs.r2.filter.compression.GzipCompressor.java

@Override
public byte[] inflate(InputStream data) throws CompressionException {
    ByteArrayOutputStream out;/*  ww w .j a  v  a 2 s .com*/
    GZIPInputStream gzip = null;

    try {
        out = new ByteArrayOutputStream();
        gzip = new GZIPInputStream(data);

        IOUtils.copy(gzip, out);
    } catch (IOException e) {
        throw new CompressionException(CompressionConstants.DECODING_ERROR + getContentEncodingName(), e);
    } finally {
        if (gzip != null) {
            IOUtils.closeQuietly(gzip);
        }
    }

    return out.toByteArray();
}