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:ByteUtils.java

public static byte[] unpackRaw(byte[] b) throws IOException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ByteArrayInputStream bais = new ByteArrayInputStream(b);

    GZIPInputStream zis = new GZIPInputStream(bais);
    byte[] tmpBuffer = new byte[256];
    int n;/*  w  w  w .  ja v  a 2s .  c o  m*/
    while ((n = zis.read(tmpBuffer)) >= 0)
        baos.write(tmpBuffer, 0, n);
    zis.close();

    return baos.toByteArray();
}

From source file:azkaban.utils.GZIPUtils.java

public static byte[] unGzipBytes(byte[] bytes) throws IOException {
    ByteArrayInputStream byteInputStream = new ByteArrayInputStream(bytes);
    GZIPInputStream gzipInputStream = new GZIPInputStream(byteInputStream);

    ByteArrayOutputStream byteOutputStream = new ByteArrayOutputStream();
    IOUtils.copy(gzipInputStream, byteOutputStream);

    return byteOutputStream.toByteArray();
}

From source file:com.giacomodrago.immediatecrypt.messagecipher.Compression.java

public static byte[] decompress(byte[] plaintext) {
    try {//from  w w  w.  ja  v  a2 s  . c o m
        ByteArrayOutputStream writer = new ByteArrayOutputStream();
        ByteArrayInputStream reader = new ByteArrayInputStream(plaintext);
        GZIPInputStream gzipStream = new GZIPInputStream(reader);
        IOUtils.copy(gzipStream, writer);
        gzipStream.close();
        writer.flush();
        writer.close();
        return writer.toByteArray();
    } catch (IOException ex) {
        return null; // Invalid source data
    }
}

From source file:com.vincestyling.netroid.HttpUtils.java

/**
 * Reads the contents of HttpEntity into a byte[].
 *//* w w  w.j ava  2  s .  c  o m*/
public static byte[] responseToBytes(HttpResponse response) throws IOException, ServerError {
    HttpEntity entity = response.getEntity();
    PoolingByteArrayOutputStream bytes = new PoolingByteArrayOutputStream(ByteArrayPool.get(),
            (int) entity.getContentLength());
    byte[] buffer = null;
    try {
        InputStream in = entity.getContent();
        if (isGzipContent(response) && !(in instanceof GZIPInputStream)) {
            in = new GZIPInputStream(in);
        }

        if (in == null) {
            throw new ServerError();
        }

        buffer = ByteArrayPool.get().getBuf(1024);
        int count;
        while ((count = in.read(buffer)) != -1) {
            bytes.write(buffer, 0, count);
        }
        return bytes.toByteArray();
    } finally {
        try {
            // Close the InputStream and release the resources by "consuming the content".
            entity.consumeContent();
        } catch (IOException e) {
            // This can happen if there was an exception above that left the entity in
            // an invalid state.
            NetroidLog.v("Error occured when calling consumingContent");
        }
        ByteArrayPool.get().returnBuf(buffer);
        bytes.close();
    }
}

From source file:Zip.java

/**
 * Reads a GZIP file and dumps the contents to the console.
 */// w ww.j a  v  a2 s  . c  om
public static void readGZIPFile(String fileName) {
    // use BufferedReader to get one line at a time
    BufferedReader gzipReader = null;
    try {
        // simple loop to dump the contents to the console
        gzipReader = new BufferedReader(
                new InputStreamReader(new GZIPInputStream(new FileInputStream(fileName))));
        while (gzipReader.ready()) {
            System.out.println(gzipReader.readLine());
        }
        gzipReader.close();
    } catch (FileNotFoundException fnfe) {
        System.out.println("The file was not found: " + fnfe.getMessage());
    } catch (IOException ioe) {
        System.out.println("An IOException occurred: " + ioe.getMessage());
    } finally {
        if (gzipReader != null) {
            try {
                gzipReader.close();
            } catch (IOException ioe) {
            }
        }
    }
}

From source file:com.grosscommerce.ICEcat.utilities.Downloader.java

public static void download(String urlFrom, String login, String pwd, OutputStream destStream)
        throws Exception {
    try {/*from  w  w w. j av  a2s  . c  o  m*/
        HttpURLConnection uc = prepareConnection(urlFrom, login, pwd);

        uc.connect();

        if (uc.getResponseCode() != HttpURLConnection.HTTP_OK) {
            Logger.getLogger(Downloader.class.getName()).log(Level.INFO, "Error, code: {0}, message {1}",
                    new Object[] { uc.getResponseCode(), uc.getResponseMessage() });

            return;
        }

        BufferedInputStream is = null;

        if ((uc.getContentEncoding() != null && uc.getContentEncoding().toLowerCase().equals("gzip"))
                || uc.getContentType() != null && uc.getContentType().toLowerCase().contains("gzip")) {
            is = new BufferedInputStream(new GZIPInputStream(uc.getInputStream()));

            Logger.getLogger(Downloader.class.getName()).log(Level.INFO, "Will download gzip data from: {0}",
                    urlFrom);
        } else {
            is = new BufferedInputStream(uc.getInputStream());

            Logger.getLogger(Downloader.class.getName()).log(Level.INFO,
                    "Will download not compressed data from:{0}", urlFrom);
        }

        StreamsHelper.copy(is, destStream);
        destStream.flush();

    } catch (Exception ex) {
        Logger.getLogger(Downloader.class.getName()).log(Level.SEVERE, "URL: " + urlFrom, ex);

        throw ex;
    }
}

From source file:com.cenrise.test.azkaban.GZIPUtils.java

public static byte[] unGzipBytes(final byte[] bytes) throws IOException {
    final ByteArrayInputStream byteInputStream = new ByteArrayInputStream(bytes);
    final GZIPInputStream gzipInputStream = new GZIPInputStream(byteInputStream);

    final ByteArrayOutputStream byteOutputStream = new ByteArrayOutputStream();
    IOUtils.copy(gzipInputStream, byteOutputStream);

    return byteOutputStream.toByteArray();
}

From source file:de.dentrassi.pm.utils.deb.Packages.java

public static Map<String, String> parseControlFile(final File packageFile) throws IOException, ParserException {
    try (final ArArchiveInputStream in = new ArArchiveInputStream(new FileInputStream(packageFile))) {
        ArchiveEntry ar;/* ww  w  .  jav  a  2s. c om*/
        while ((ar = in.getNextEntry()) != null) {
            if (!ar.getName().equals("control.tar.gz")) {
                continue;
            }
            try (final TarArchiveInputStream inputStream = new TarArchiveInputStream(new GZIPInputStream(in))) {
                TarArchiveEntry te;
                while ((te = inputStream.getNextTarEntry()) != null) {
                    String name = te.getName();
                    if (name.startsWith("./")) {
                        name = name.substring(2);
                    }
                    if (!name.equals("control")) {
                        continue;
                    }
                    return parseControlFile(inputStream);
                }
            }
        }
    }
    return null;
}

From source file:halive.shootinoutside.common.core.game.map.GameMap.java

public static GameMap createFromByteArray(byte[] b) throws IOException, ParseException {
    ByteArrayInputStream in = new ByteArrayInputStream(b);
    GZIPInputStream input = new GZIPInputStream(in);
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    int j;// ww w. j  av a2  s  . c  o m
    while ((j = input.read()) != -1) {
        out.write(j);
    }
    String s = new String(out.toByteArray());
    return loadGameMapFromJSONString(s);
}

From source file:bencoding.securely.Converters.java

public static Object deserializeObjectFromString(String objectString) throws Exception {

    ByteArrayInputStream arrayInputStream = new ByteArrayInputStream(
            Base64.decode(objectString, Base64.DEFAULT));
    GZIPInputStream gzipInputStream = new GZIPInputStream(arrayInputStream);
    ObjectInputStream objectInputStream = new ObjectInputStream(gzipInputStream);

    Object object = objectInputStream.readObject();

    objectInputStream.close();/*from   www  . j av  a 2 s. co  m*/
    gzipInputStream.close();
    arrayInputStream.close();

    return object;
}