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:org.onebusaway.nyc.stif.StifTripLoader.java

/**
 * For each STIF file, call run()./* w w  w  . j  a  va 2 s  . c  o m*/
 */
public void run(File path) {
    try {
        _log.info("loading stif from " + path.getAbsolutePath());
        InputStream in = new FileInputStream(path);
        if (path.getName().endsWith(".gz"))
            in = new GZIPInputStream(in);
        run(in);
    } catch (IOException e) {
        throw new RuntimeException("Error loading " + path, e);
    }
}

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From source file:eu.peppol.smp.SmpContentRetrieverImpl.java

/**
 * Gets the XML content of a given url, wrapped in an InputSource object.
 *///from www. j av a2s.  c  o  m
@Override
public InputSource getUrlContent(URL url) {

    HttpURLConnection httpURLConnection = null;
    try {
        httpURLConnection = (HttpURLConnection) url.openConnection();
        httpURLConnection.connect();
    } catch (IOException e) {
        throw new IllegalStateException("Unable to connect to " + url + " ; " + e.getMessage(), e);
    }

    try {
        if (httpURLConnection.getResponseCode() == HttpURLConnection.HTTP_UNAVAILABLE)
            throw new TryAgainLaterException(url, httpURLConnection.getHeaderField("Retry-After"));
        if (httpURLConnection.getResponseCode() != HttpURLConnection.HTTP_OK)
            throw new ConnectionException(url, httpURLConnection.getResponseCode());
    } catch (IOException e) {
        throw new RuntimeException("Problem reading URL data at " + url.toExternalForm(), e);
    }

    try {

        String encoding = httpURLConnection.getContentEncoding();
        InputStream in = new BOMInputStream(httpURLConnection.getInputStream());
        InputStream result;

        if (encoding != null && encoding.equalsIgnoreCase(ENCODING_GZIP)) {
            result = new GZIPInputStream(in);
        } else if (encoding != null && encoding.equalsIgnoreCase(ENCODING_DEFLATE)) {
            result = new InflaterInputStream(in);
        } else {
            result = in;
        }

        String xml = readInputStreamIntoString(result);

        return new InputSource(new StringReader(xml));

    } catch (Exception e) {
        throw new RuntimeException("Problem reading URL data at " + url.toExternalForm(), e);
    }

}

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From source file:com.cloudant.sync.datastore.SavedHttpAttachment.java

@Override
public InputStream getInputStream() throws IOException {
    if (data == null) {
        HttpRequests requests = new HttpRequests(new BasicHttpParams(), null, null, null);
        if (encoding == Encoding.Gzip) {
            return new GZIPInputStream(requests.getCompressed(attachmentURI));
        } else {//  w w  w. jav  a 2  s.  c  om
            return requests.get(attachmentURI);
        }
    } else {
        return new ByteArrayInputStream(data);
    }

}

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From source file:com.github.commonclasses.network.DownloadUtils.java

public static long download(String urlStr, File dest, boolean append, DownloadListener downloadListener)
        throws Exception {
    int downloadProgress = 0;
    long remoteSize = 0;
    int currentSize = 0;
    long totalSize = -1;

    if (!append && dest.exists() && dest.isFile()) {
        dest.delete();//from  w w w .j  a  va2 s.c  om
    }

    if (append && dest.exists() && dest.exists()) {
        FileInputStream fis = null;
        try {
            fis = new FileInputStream(dest);
            currentSize = fis.available();
        } catch (IOException e) {
            throw e;
        } finally {
            if (fis != null) {
                fis.close();
            }
        }
    }

    HttpGet request = new HttpGet(urlStr);
    request.setHeader("Content-Type", "application/x-www-form-urlencoded");

    if (currentSize > 0) {
        request.addHeader("RANGE", "bytes=" + currentSize + "-");
    }

    HttpParams params = new BasicHttpParams();
    HttpConnectionParams.setConnectionTimeout(params, CONNECT_TIMEOUT);
    HttpConnectionParams.setSoTimeout(params, DATA_TIMEOUT);
    HttpClient httpClient = new DefaultHttpClient(params);

    InputStream is = null;
    FileOutputStream os = null;
    try {
        HttpResponse response = httpClient.execute(request);
        if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
            is = response.getEntity().getContent();
            remoteSize = response.getEntity().getContentLength();
            Header contentEncoding = response.getFirstHeader("Content-Encoding");
            if (contentEncoding != null && contentEncoding.getValue().equalsIgnoreCase("gzip")) {
                is = new GZIPInputStream(is);
            }
            os = new FileOutputStream(dest, append);
            byte buffer[] = new byte[DATA_BUFFER];
            int readSize = 0;
            while ((readSize = is.read(buffer)) > 0) {
                os.write(buffer, 0, readSize);
                os.flush();
                totalSize += readSize;
                if (downloadListener != null) {
                    downloadProgress = (int) (totalSize * 100 / remoteSize);
                    downloadListener.downloading(downloadProgress);
                }
            }
            if (totalSize < 0) {
                totalSize = 0;
            }
        }
    } catch (Exception e) {
        if (downloadListener != null) {
            downloadListener.exception(e);
        }
        e.printStackTrace();
    } finally {
        if (os != null) {
            os.close();
        }
        if (is != null) {
            is.close();
        }
    }

    if (totalSize < 0) {
        throw new Exception("Download file fail: " + urlStr);
    }

    if (downloadListener != null) {
        downloadListener.downloaded(dest);
    }

    return totalSize;
}

---

From source file:com.simiacryptus.util.Util.java

/**
 * Binary stream stream./* w  ww .  j  a v  a2s  . co m*/
 *
 * @param path       the path
 * @param name       the name
 * @param skip       the skip
 * @param recordSize the record size
 * @return the stream
 * @throws IOException the io exception
 */
public static Stream<byte[]> binaryStream(final String path, @javax.annotation.Nonnull final String name,
        final int skip, final int recordSize) throws IOException {
    @javax.annotation.Nonnull
    final File file = new File(path, name);
    final byte[] fileData = IOUtils.toByteArray(
            new BufferedInputStream(new GZIPInputStream(new BufferedInputStream(new FileInputStream(file)))));
    @javax.annotation.Nonnull
    final DataInputStream in = new DataInputStream(new ByteArrayInputStream(fileData));
    in.skip(skip);
    return com.simiacryptus.util.Util.toIterator(new BinaryChunkIterator(in, recordSize));
}

---

From source file:io.scigraph.services.jersey.dynamic.SwaggerFilter.java

@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
        throws IOException, ServletException {
    // Capture the output of the filter chain
    ByteArrayResponseWrapper wrappedResp = new ByteArrayResponseWrapper((HttpServletResponse) response);
    chain.doFilter(request, wrappedResp);
    if (isGzip(request)) {
        try (InputStream is = new ByteArrayInputStream(wrappedResp.getBytes());
                GZIPInputStream gis = new GZIPInputStream(is);
                ByteArrayOutputStream bs = new ByteArrayOutputStream();
                GZIPOutputStream gzos = new GZIPOutputStream(bs)) {
            byte[] newApi = writeDynamicResource(gis);
            gzos.write(newApi);/*from  ww  w. ja va  2  s  . c o m*/
            gzos.close();
            byte[] output = bs.toByteArray();
            response.setContentLength(output.length);
            response.getOutputStream().write(output);
        }
    } else {
        try (InputStream is = new ByteArrayInputStream(wrappedResp.getBytes());
                ByteArrayOutputStream bs = new ByteArrayOutputStream()) {
            byte[] newApi = writeDynamicResource(is);
            response.setContentLength(newApi.length);
            response.getOutputStream().write(newApi);
        }

    }
}

---

From source file:edu.scripps.fl.pubchem.PubChemFactory.java

public InputStream getPubChemXmlDesc(long aid) throws IOException {
    String archive = getAIDArchive(aid);
    String sUrl = String.format(pubchemBioAssayUrlFormat, ftpUser, ftpPass, "Description", archive);
    String szip = String.format("zip:%s!/%s/%s.descr.xml.gz", sUrl, archive, aid);
    log.debug(sUrl);/*from ww w. j  a  v  a 2  s. c om*/
    FileObject fo = VFS.getManager().resolveFile(szip);
    log.debug("Resolved file: " + szip);
    try {
        InputStream is = fo.getContent().getInputStream();
        return new GZIPInputStream(is);
    } catch (Exception e) {
        log.info("AID: " + aid + " is not in the ftp site.", e.getMessage());
        return null;
    }
}

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From source file:com.audiveris.installer.Expander.java

/**
 * Ungzip an input file into an output file.
 *
 * The output file is created in the output folder, having the same name
 * as the input file, minus the '.gz' extension.
 *
 * @param inFile the input .gz file//from  w  w w .ja  v  a  2  s .  co  m
 * @param outDir the output directory file.
 * @throws IOException
 * @throws FileNotFoundException
 *
 * @return The file with the ungzipped content.
 */
public static File unGzip(final File inFile, final File outDir) throws FileNotFoundException, IOException {
    logger.debug("Ungzipping {} to dir {}", inFile, outDir);

    final String inName = inFile.getName();
    assert inName.endsWith(GZ_EXT);

    final InputStream in = new GZIPInputStream(new FileInputStream(inFile));
    final File outFile = streamToFile(in,
            new File(outDir, inName.substring(0, inName.length() - GZ_EXT.length())));
    in.close();

    return outFile;
}

---

From source file:io.druid.data.input.impl.prefetch.RetryingInputStreamTest.java

@Before
public void setup() throws IOException {
    testFile = temporaryFolder.newFile();

    try (FileOutputStream fis = new FileOutputStream(testFile);
            GZIPOutputStream gis = new GZIPOutputStream(fis);
            DataOutputStream dis = new DataOutputStream(gis)) {
        for (int i = 0; i < 10000; i++) {
            dis.writeInt(i);/*from  w w  w .jav a  2 s  . c  o m*/
        }
    }

    throwError = false;

    final InputStream retryingInputStream = new RetryingInputStream<>(testFile, new ObjectOpenFunction<File>() {
        @Override
        public InputStream open(File object) throws IOException {
            return new TestInputStream(new FileInputStream(object));
        }

        @Override
        public InputStream open(File object, long start) throws IOException {
            final FileInputStream fis = new FileInputStream(object);
            Preconditions.checkState(fis.skip(start) == start);
            return new TestInputStream(fis);
        }
    }, e -> e instanceof IOException, MAX_RETRY);

    inputStream = new DataInputStream(new GZIPInputStream(retryingInputStream));

    throwError = true;
}

---

From source file:com.lyndir.lhunath.opal.network.GZIPPostMethod.java

/**
 * If the response body was GZIP-compressed, responseStream will be set to a GZIPInputStream wrapping the original InputStream used by
 * the super class./*from  ww w.  j a va 2  s . c om*/
 *
 * {@inheritDoc}
 */
@Override
protected void readResponse(final HttpState state, final HttpConnection conn) throws IOException {

    super.readResponse(state, conn);

    Header contentEncodingHeader = getResponseHeader("Content-Encoding");
    if (contentEncodingHeader != null && "gzip".equalsIgnoreCase(contentEncodingHeader.getValue())) {
        try (InputStream zippedStream = new GZIPInputStream(getResponseStream())) {
            setResponseStream(zippedStream);
        }
    }
}

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