Example usage for java.util.zip GZIPInputStream GZIPInputStream

List of usage examples for java.util.zip GZIPInputStream GZIPInputStream

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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.epam.wilma.test.server.compress.gzip.GzipDecompressor.java

/**
 * Decompresses an input stream from gzip.
 * @param body the inputstream that is decompressed.
 * @return the decompressed {@link ByteArrayOutputStream}
 *///ww w. jav a  2  s  .co  m
public ByteArrayOutputStream decompress(final InputStream body) {
    ByteArrayOutputStream writer = new ByteArrayOutputStream();
    try {
        GZIPInputStream gzipStream = new GZIPInputStream(body);
        IOUtils.copy(gzipStream, writer);
    } catch (IOException e) {
        logger.error("Error when decompress inputStream, exception message:" + e.getMessage());
    }
    return writer;
}

From source file:com.github.sdbg.debug.core.util.JsonTests.java

public void xxx_test_parse100() throws IOException, JSONException {
    InputStream in = JsonTests.class.getResourceAsStream("test1.json.gz");
    GZIPInputStream gzipIn = new GZIPInputStream(in);
    String string = Streams.loadAndClose(new InputStreamReader(gzipIn, "UTF-8"));

    long start = System.nanoTime();

    int iterations = 100;

    for (int i = 0; i < iterations; i++) {
        @SuppressWarnings("unused")
        JSONObject obj = new JSONObject(string);
    }/*from w  w w .  j a  va 2s.c  o m*/

    long elapsed = System.nanoTime() - start;

    double mb = (string.length() * iterations) / (1024.0 * 1024.0);
    double sec = elapsed / (1000 * 1000 * 1000.0);

    System.out.println(String.format("%.2f MB/sec", (mb / sec)));
}

From source file:edu.cornell.med.icb.goby.algorithmic.data.WeightsInfo.java

/**
 * Load weights info from disk./*from  w  w  w.j  av  a2  s  .c  o  m*/
 *
 * @param filename The name of the file to load
 * @return The populated WeightsInfo object read from the file
 * @throws IOException If the file cannot be read
 * @throws ClassNotFoundException if the file contains a class that cannot be found.
 */
public static WeightsInfo load(final String filename) throws IOException, ClassNotFoundException {
    GZIPInputStream inputStream = null;
    try {
        inputStream = new GZIPInputStream(new FileInputStream(filename));
        return (WeightsInfo) BinIO.loadObject(inputStream);
    } finally {
        IOUtils.closeQuietly(inputStream);
    }
}

From source file:com.socioffice.grabmenu.model.JSONRequest.java

public static JSONObject SendHttpPost(String URL, JSONObject jsonObjSend) {

    try {//from   w w w  .  ja  v a  2  s .  c om
        DefaultHttpClient httpclient = new DefaultHttpClient();
        HttpPost httpPostRequest = new HttpPost(URL);

        StringEntity se;
        se = new StringEntity(jsonObjSend.toString());

        // Set HTTP parameters
        httpPostRequest.setEntity(se);
        httpPostRequest.setHeader("Accept", "application/json");
        httpPostRequest.setHeader("Content-type", "application/json");

        // only set this parameter if you would like to use gzip compression
        httpPostRequest.setHeader("Accept-Encoding", "gzip");

        long t = System.currentTimeMillis();
        HttpResponse response = (HttpResponse) httpclient.execute(httpPostRequest);
        Log.i(TAG, "HTTPResponse received in [" + (System.currentTimeMillis() - t) + "ms]");

        // Get hold of the response entity (-> the data):
        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);
            }

            // 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
            JSONObject jsonObjRecv = new JSONObject(resultString);
            // Raw DEBUG output of our received JSON object:
            Log.i(TAG, "<jsonobject>\n" + jsonObjRecv.toString() + "\n</jsonobject>");

            return jsonObjRecv;
        }

    } catch (Exception e) {
        // More about HTTP exception handling in another tutorial.
        // For now we just print the stack trace.
        e.printStackTrace();
    }
    return null;
}

From source file:ca.dal.cs.csci4126.quizboard.library.HttpClient.java

public static JSONObject SendHttpPost(String URL, JSONObject jsonObjSend) {

    try {/* ww  w .j  av  a  2  s .  c o m*/
        DefaultHttpClient httpclient = new DefaultHttpClient();
        HttpPost httpPostRequest = new HttpPost(URL);

        StringEntity se;
        se = new StringEntity(jsonObjSend.toString());

        // Set HTTP parameters
        httpPostRequest.setEntity(se);
        httpPostRequest.setHeader("Accept", "application/json");
        httpPostRequest.setHeader("Content-type", "application/json");
        httpPostRequest.setHeader("Accept-Encoding", "gzip"); // only set this parameter if you would like to use gzip compression

        long t = System.currentTimeMillis();
        HttpResponse response = (HttpResponse) httpclient.execute(httpPostRequest);
        Log.i(TAG, "HTTPResponse received in [" + (System.currentTimeMillis() - t) + "ms]");

        // Get hold of the response entity (-> the data):
        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);
            }

            // 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
            JSONObject jsonObjRecv = new JSONObject(resultString);
            // Raw DEBUG output of our received JSON object:
            Log.i(TAG, "<JSONObject>\n" + jsonObjRecv.toString() + "\n</JSONObject>");

            return jsonObjRecv;
        }

    } catch (Exception e) {
        // More about HTTP exception handling in another tutorial.
        // For now we just print the stack trace.
        e.printStackTrace();
    }
    return null;
}

From source file:com.example.montxu.magik_repair.HttpClient.java

public static JSONObject SendHttpPost(String URL, JSONObject jsonObjSend) {

    try {// w  ww .ja  va  2s  . co m
        DefaultHttpClient httpclient = new DefaultHttpClient();
        HttpPost httpPostRequest = new HttpPost(URL);

        StringEntity se;
        se = new StringEntity(jsonObjSend.toString());

        // Set HTTP parameters
        httpPostRequest.setEntity(se);
        httpPostRequest.setHeader("Accept", "application/json");
        httpPostRequest.setHeader("Content-type", "application/json");
        httpPostRequest.setHeader("Accept-Encoding", "gzip"); // only set this parameter if you would like to use gzip compression

        long t = System.currentTimeMillis();
        HttpResponse response = (HttpResponse) httpclient.execute(httpPostRequest);
        Log.i(TAG, "HTTPResponse received in [" + (System.currentTimeMillis() - t) + "ms]");

        // Get hold of the response entity (-> the data):
        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);
            }

            // 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
            JSONObject jsonObjRecv = new JSONObject(resultString);
            // Raw DEBUG output of our received JSON object:
            Log.i(TAG, "<JSONObject>\n" + jsonObjRecv.toString() + "\n</JSONObject>");

            return jsonObjRecv;
        }

    } catch (Exception e) {
        // More about HTTP exception handling in another tutorial.
        // For now we just print the stack trace.

        e.printStackTrace();
    }

    return null;
}

From source file:drawnzer.anurag.tarHelper.TarManager.java

public TarManager(File file, String pathToShow) throws IOException {
    // TODO Auto-generated constructor stub
    if (file.getName().endsWith(".tar.gz"))
        tar = new TarArchiveInputStream(
                new GZIPInputStream(new BufferedInputStream(new FileInputStream(file))));
    else if (file.getName().endsWith(".tar.bz2") || file.getName().endsWith(".TAR.BZ2"))
        tar = new TarArchiveInputStream(
                new BZip2CompressorInputStream(new BufferedInputStream(new FileInputStream(file))));
    else//from w  w  w  .  j  av a2  s. c  o  m
        tar = new TarArchiveInputStream(new BufferedInputStream(new FileInputStream(file)));
    path = pathToShow;
}

From source file:edu.scripps.fl.pubchem.app.cids.WriteSDFStage.java

@Override
public void process(Object obj) throws StageException {
    URL url = (URL) obj;//from w ww  . ja v a2s  .c o m
    try {
        File outputFile = newOutputFile(counter.incrementAndGet());
        logger.info("Writing SDF file: " + outputFile);
        IOUtils.copy(new GZIPInputStream(url.openStream()), FileUtils.openOutputStream(outputFile));
        emit(outputFile);
    } catch (Exception ex) {
        throw new StageException(this, ex);
    }
}

From source file:com.google.android.feeds.ContentHandlerUtils.java

/**
 * Returns the uncompressed {@link InputStream} for the given
 * {@link URLConnection}.//  w w  w  . j  a v  a 2  s.  c  o  m
 */
public static InputStream getUncompressedInputStream(URLConnection connection) throws IOException {
    InputStream source = connection.getInputStream();
    String encoding = connection.getContentEncoding();
    if ("gzip".equalsIgnoreCase(encoding)) {
        return new GZIPInputStream(source);
    } else if ("deflate".equalsIgnoreCase(encoding)) {
        boolean noHeader = true;
        Inflater inflater = new Inflater(noHeader);
        return new InflaterInputStream(source, inflater);
    } else {
        return source;
    }
}

From source file:edu.cornell.med.icb.goby.alignments.UpgradeTo1_9_6.java

public void upgrade(String basename, AlignmentReaderImpl reader) throws IOException {
    if (!"1.9.5-".equals(reader.getGobyVersion()))
        return;/* w ww  .  jav  a 2s  . com*/

    final GZIPInputStream indexStream = new GZIPInputStream(new RepositionableInputStream(basename + ".index"));

    final CodedInputStream codedInput = CodedInputStream.newInstance(indexStream);
    codedInput.setSizeLimit(Integer.MAX_VALUE);
    final Alignments.AlignmentIndex index = Alignments.AlignmentIndex.parseFrom(codedInput);

    LongArrayList indexOffsets = new LongArrayList();
    LongArrayList upgradedOffsets = new LongArrayList();
    LongArrayList indexAbsolutePositions = new LongArrayList();
    LongArrayList upgradedIndexAbsolutePositions = new LongArrayList();

    for (final long offset : index.getOffsetsList()) {
        indexOffsets.add(offset);
    }
    for (final long absolutePosition : index.getAbsolutePositionsList()) {
        indexAbsolutePositions.add(absolutePosition);
    }
    // trimming is essential for the binary search to work reliably with the result of elements():
    indexAbsolutePositions.trim();
    indexOffsets.trim();
    long[] targetPositionOffsets;
    int[] targetLengths = reader.getTargetLength();

    //prepare according to new indexing scheme:
    targetPositionOffsets = new long[targetLengths.length];
    targetPositionOffsets[0] = 0;
    for (int targetIndex = 1; targetIndex < targetLengths.length; targetIndex++) {
        targetPositionOffsets[targetIndex] = targetLengths[targetIndex - 1]
                + targetPositionOffsets[targetIndex - 1];
    }
    long previousAbsolutePosition = -1;
    ProgressLogger progress = new ProgressLogger(LOG);
    progress.expectedUpdates = indexOffsets.size();
    progress.priority = Level.INFO;
    progress.start();
    // push the very first entry to the index at offset zero. This is necessary because 1.9.5 did not include
    // offset information and absolute position for the very first entry of the alignment.
    Alignments.AlignmentEntry entry = reader.next();
    previousAbsolutePosition = pushEntryToIndex(upgradedOffsets, upgradedIndexAbsolutePositions,
            targetPositionOffsets, previousAbsolutePosition, 0, entry);

    for (long indexOffset : indexOffsets) {
        // for each offset in the entries file, obtain the first entry then recode absolute position:

        entry = fetchFirstEntry(reader, indexOffset);
        previousAbsolutePosition = pushEntryToIndex(upgradedOffsets, upgradedIndexAbsolutePositions,
                targetPositionOffsets, previousAbsolutePosition, indexOffset, entry);

        progress.lightUpdate();
    }
    progress.stop();
    writeIndex(basename, upgradedOffsets, upgradedIndexAbsolutePositions);
    upgradeHeaderVersion(basename);
    if (verbose) {
        System.out.printf("alignment %s upgraded successfully.%n", basename);
    }
}