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.ery.ertc.estorm.util.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  ww.ja va  2 s.  c om*/
 */
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.sonatype.nexus.perftest.maven.HttpdLogParser.java

@JsonCreator
public HttpdLogParser(@JsonProperty("logfile") File logfile) throws IOException {
    ArrayList<String> paths = new ArrayList<>();
    try (BufferedReader br = new BufferedReader(
            new InputStreamReader(new GZIPInputStream(new FileInputStream(logfile))))) {
        String str;//  w ww . j  a v a 2  s  .  c o m
        while ((str = br.readLine()) != null) {
            StringTokenizer st = new StringTokenizer(str, "[]\" ");
            st.nextToken(); // ip
            st.nextToken(); // not sure
            st.nextToken(); // username
            st.nextToken(); // [date:time
            st.nextToken(); // timezoneoffset]
            String method = st.nextToken(); // "METHOD
            if ("GET".equals(method)) {
                String path = st.nextToken(); // path
                if (path.startsWith(PREFIX)) {
                    paths.add(path.substring(PREFIX.length()));
                }
            }
        }
    }
    this.paths = Collections.unmodifiableList(paths);
}

From source file:com.useekm.types.AbstractGeo.java

public static byte[] gunzip(byte[] bytes) {
    try {//from   w  w  w. j a  v a 2  s.c o m
        ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
        BufferedInputStream bufis = new BufferedInputStream(new GZIPInputStream(bis));
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        byte[] buf = new byte[1024];
        int len;
        while ((len = bufis.read(buf)) > 0)
            bos.write(buf, 0, len);
        byte[] result = bos.toByteArray();
        bufis.close();
        bos.close();
        return result;
    } catch (IOException e) {
        throw new IllegalStateException("Unexpected IOException on inmemory gunzip", e);
    }
}

From source file:com.marklogic.contentpump.GzipDelimitedJSONReader.java

@Override
protected void initFileStream(InputSplit inSplit) throws IOException, InterruptedException {
    setFile(((FileSplit) inSplit).getPath());
    configFileNameAsCollection(conf, file);
    fileIn = fs.open(file);/*w  w w  .j av  a 2s  .  co  m*/
    gzipIn = new GZIPInputStream(fileIn);
    instream = new InputStreamReader(gzipIn, encoding);
    reader = new LineNumberReader(instream);
}

From source file:bioLockJ.AppController.java

/**
 * Get a BufferedReader for standard text file or gzipped file.
 * @param file//from   ww  w.j  a v a  2s .co m
 * @return
 * @throws Exception
 */
public static BufferedReader getFileReader(final File file) throws Exception {
    return file.getName().toLowerCase().endsWith(".gz")
            ? new BufferedReader(new InputStreamReader(new GZIPInputStream(new FileInputStream(file))))
            : new BufferedReader(new FileReader(file));
}

From source file:com.ryan.ryanreader.cache.GzipDecompressingEntity.java

public InputStream getContent() throws IOException, IllegalStateException {

    // the wrapped entity's getContent() decides about repeatability
    final InputStream wrappedin = wrappedEntity.getContent();

    return new GZIPInputStream(wrappedin);
}

From source file:org.droidparts.http.worker.HTTPInputStream.java

private static InputStream getUnpackedInputStream(String contentEncoding, InputStream is) throws IOException {
    L.d("Content-Encoding: " + contentEncoding);
    if (isNotEmpty(contentEncoding)) {
        contentEncoding = contentEncoding.toLowerCase();
        if (contentEncoding.contains("gzip")) {
            return new GZIPInputStream(is);
        } else if (contentEncoding.contains("deflate")) {
            return new InflaterInputStream(is);
        }//from  w  ww . ja v  a  2  s  .c o m
    }
    return is;
}

From source file:pj.rozkladWKD.HttpClient.java

public static JSONObject SendHttpPost(List<NameValuePair> nameValuePairs)
        throws JSONException, ClientProtocolException, IOException {

    // Create a new HttpClient and Post Header  
    DefaultHttpClient httpclient = new DefaultHttpClient();
    HttpPost httppost = new HttpPost("http://www.mmaj.nazwa.pl/rozkladwkd/listener2.php");
    nameValuePairs.add(new BasicNameValuePair("app_ver", RozkladWKD.APP_VERSION));

    // Add your data  
    httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs, "UTF_8"));

    // Execute HTTP Post Request  
    HttpResponse response = httpclient.execute(httppost);

    HttpEntity entity = response.getEntity();

    if (entity != null) {
        // Read the content stream

        InputStream instream = entity.getContent();
        Header contentEncoding = response.getFirstHeader("Content-Encoding");
        if (contentEncoding != null && contentEncoding.getValue().equalsIgnoreCase("gzip")) {
            instream = new GZIPInputStream(instream);
        }// w ww  .j  a  va2  s . c o  m

        // convert content stream to a String
        String resultString = convertStreamToString(instream);

        instream.close();
        //resultString = resultString.substring(1,resultString.length()-1); // remove wrapping "[" and "]"

        // Transform the String into a JSONObject
        if (RozkladWKD.DEBUG_LOG) {
            Log.i(TAG, "result: " + resultString);
        }
        JSONObject jsonObjRecv = new JSONObject(resultString);
        // Raw DEBUG output of our received JSON object:
        if (RozkladWKD.DEBUG_LOG) {
            Log.i(TAG, "<jsonobject>\n" + jsonObjRecv.toString() + "\n</jsonobject>");
        }

        return jsonObjRecv;
    }

    return null;
}

From source file:at.bitfire.davdroid.webdav.GzipDecompressingEntity.java

@Override
public InputStream getContent() throws IOException, IllegalStateException {

    // the wrapped entity's getContent() decides about repeatability
    InputStream wrappedin = wrappedEntity.getContent();

    return new GZIPInputStream(wrappedin);
}

From source file:de.dentrassi.pm.npm.aspect.NpmExtractor.java

private void perform(final Path file, final Map<String, String> metadata) throws IOException {
    try (final GZIPInputStream gis = new GZIPInputStream(new FileInputStream(file.toFile()));
            final TarArchiveInputStream tis = new TarArchiveInputStream(gis)) {
        TarArchiveEntry entry;//from w w  w.j  av a2s . c  o m
        while ((entry = tis.getNextTarEntry()) != null) {
            if (entry.getName().equals("package/package.json")) {
                final byte[] data = new byte[(int) entry.getSize()];
                ByteStreams.read(tis, data, 0, data.length);

                final String str = StandardCharsets.UTF_8.decode(ByteBuffer.wrap(data)).toString();

                try {
                    // test parse
                    new JsonParser().parse(str);
                    // store
                    metadata.put("package.json", str);
                } catch (final JsonParseException e) {
                    // ignore
                }

                break; // stop parsing the archive
            }
        }

    }
}