Example usage for java.util.zip GZIPInputStream read

Introduction

In this page you can find the example usage for java.util.zip GZIPInputStream read.

Prototype

public int read(byte b[]) throws IOException 

Source Link

Document

Reads up to b.length bytes of data from this input stream into an array of bytes.

Usage

From source file:org.apache.myfaces.shared_impl.util.StateUtils.java

public static byte[] decompress(byte[] bytes) {
    ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    byte[] buffer = new byte[2048];
    int length;//ww  w.j  a v a 2  s  .  c  o m

    try {
        GZIPInputStream gis = new GZIPInputStream(bais);
        while ((length = gis.read(buffer)) != -1) {
            baos.write(buffer, 0, length);
        }

        byte[] moreBytes = baos.toByteArray();
        baos.close();
        bais.close();
        gis.close();
        baos = null;
        bais = null;
        gis = null;
        return moreBytes;
    } catch (IOException e) {
        throw new FacesException(e);
    }
}

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From source file:com.sap.nwcloudmanager.api.LogAPI.java

public static void downloadLog(final Context context, final String appId, final String logName,
        final DownloadLogResponseHandler downloadLogResponseHandler) {

    NetWeaverCloudConfig config = NetWeaverCloudConfig.getInstance();
    getHttpClient().setBasicAuth(config.getUsername(), config.getPassword());
    String[] contentTypes = { "application/x-gzip" };
    getHttpClient().get("https://monitoring." + config.getHost() + "/log/api_basic/logs/" + config.getAccount()
            + "/" + appId + "/web/" + logName, null, new BinaryHttpResponseHandler(contentTypes) {

                /*//w w  w  .j a va 2s. c  om
                 * (non-Javadoc)
                 * 
                 * @see
                 * com.loopj.android.http.BinaryHttpResponseHandler#onSuccess(byte
                 * [])
                 */
                @Override
                public void onSuccess(byte[] arg0) {

                    GZIPInputStream gzis = null;

                    try {
                        gzis = new GZIPInputStream(new ByteArrayInputStream(arg0));

                        StringBuilder string = new StringBuilder();
                        byte[] data = new byte[4028];
                        int bytesRead;
                        while ((bytesRead = gzis.read(data)) != -1) {
                            string.append(new String(data, 0, bytesRead));
                        }

                        File downloadsFile = context.getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS);
                        if (downloadsFile.exists()) {
                            downloadsFile = new File(
                                    context.getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS)
                                            .getAbsolutePath() + "/" + logName);
                            FileOutputStream fos = new FileOutputStream(downloadsFile);
                            fos.write(string.toString().getBytes());
                            fos.close();
                        }

                        downloadLogResponseHandler.onSuccess(downloadsFile.getAbsolutePath());

                    } catch (IOException e) {
                        Log.e(e.getMessage());
                    } finally {
                        try {
                            if (gzis != null) {
                                gzis.close();
                            }
                        } catch (IOException e) {
                        }
                    }
                }

                @Override
                public void onFailure(Throwable arg0) {
                    downloadLogResponseHandler.onFailure(arg0, arg0.getMessage());
                }

            });
}

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From source file:uk.ac.ebi.embl.api.validation.helper.FileUtils.java

public static String getdeCompressedFile(String file) throws IOException {
    if (file == null) {
        return null;
    }/* w  w w.j  a  va2 s  .  com*/
    File zipFile = new File(file);
    if (!zipFile.exists()) {
        return null;
    }

    if (!zipFile.getName().matches("^.+\\.gz$")) {
        return file;
    }
    byte[] buffer = new byte[1024];
    GZIPInputStream zis = new GZIPInputStream(new FileInputStream(zipFile));
    File tempFile = new File(zipFile.getParent() + File.separator
            + zipFile.getName().substring(0, zipFile.getName().lastIndexOf(".gz")));
    if (!tempFile.exists()) {
        tempFile.createNewFile();
    }

    FileOutputStream fos = new FileOutputStream(tempFile);
    int len;
    while ((len = zis.read(buffer)) > 0) {
        fos.write(buffer, 0, len);
    }

    fos.close();

    zis.close();

    return tempFile.getAbsolutePath();
}

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From source file:com.nridge.core.base.std.FilUtl.java

/**
 * Decompresses the GZIP file back to its original form.
 *
 * @param aGzipPathFileName The GZIP file name.
 * @param anOutputPathFileName The output file name.
 *
 * @throws IOException Related to opening the file streams and
 * related read/write operations./*from  www  .  j a v a 2  s . co  m*/
 */
public static void ungzipFile(String aGzipPathFileName, String anOutputPathFileName) throws IOException {
    int byteCount;

    FileInputStream fileInputStream = new FileInputStream(aGzipPathFileName);
    GZIPInputStream gzipInputStream = new GZIPInputStream(fileInputStream);
    FileOutputStream fileOutputStream = new FileOutputStream(anOutputPathFileName);

    byte[] ioBuf = new byte[FILE_IO_BUFFER_SIZE];
    byteCount = gzipInputStream.read(ioBuf);
    while (byteCount > 0) {
        fileOutputStream.write(ioBuf, 0, byteCount);
        byteCount = gzipInputStream.read(ioBuf);
    }

    fileOutputStream.close();
    gzipInputStream.close();
}

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From source file:it.marcoberri.mbfasturl.action.Commons.java

/**
 * //from w w w . j a va 2  s  .  c  om
 * @param log
 * @param path
 * @param url
 */
public static void downloadGeoIp2(Logger log, String path, String url) {

    long ts = System.currentTimeMillis();
    final String action = "downloadGeoIp2";

    try {
        org.apache.commons.io.FileUtils.forceMkdir(new File(path));
    } catch (final IOException ex) {
    }

    final String fileName = url.substring(url.lastIndexOf("/"), url.length());

    HttpUtil.downloadData(url, path + "/" + fileName);

    try {
        final File f = new File(path + "/" + fileName);

        final GZIPInputStream gzis = new GZIPInputStream(new FileInputStream(f));

        final byte[] buffer = new byte[1024];
        final FileOutputStream out = new FileOutputStream(
                new File(path + "/" + fileName.replaceAll(".gz", "")));
        int len;
        while ((len = gzis.read(buffer)) > 0) {
            out.write(buffer, 0, len);
        }

        gzis.close();
        out.close();

        writeEventLog(action, true, "File size:" + f.length(), "Download Resources",
                (System.currentTimeMillis() - ts));

    } catch (final IOException ex) {

        log.fatal(ex);
        writeEventLog(action, false, ex.getMessage(), "Download Resources", (System.currentTimeMillis() - ts));
    }

}

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From source file:eu.diacron.crawlservice.app.Util.java

private static String unzipWarcFile(String input_gzip_file) {

    String output_file = input_gzip_file.split(".gz")[0];

    byte[] buffer = new byte[1024];

    try {//from  www.j a  va2  s. c  o m

        GZIPInputStream gzis = new GZIPInputStream(new FileInputStream(input_gzip_file));

        FileOutputStream out = new FileOutputStream(output_file);

        int len;
        while ((len = gzis.read(buffer)) > 0) {
            out.write(buffer, 0, len);
        }

        gzis.close();
        out.close();

        System.out.println("Done");

    } catch (IOException ex) {
        ex.printStackTrace();
    }

    return output_file;
}

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From source file:org.apache.helix.tools.ZkGrep.java

/**
 * Gunzip a file//from w  w  w  .  j  a  v a 2  s. co m
 * @param zipFile
 * @return
 */
static File gunzip(File zipFile) {
    File outputFile = new File(stripGzSuffix(zipFile.getAbsolutePath()));

    byte[] buffer = new byte[1024];

    try {

        GZIPInputStream gzis = new GZIPInputStream(new FileInputStream(zipFile));
        FileOutputStream out = new FileOutputStream(outputFile);

        int len;
        while ((len = gzis.read(buffer)) > 0) {
            out.write(buffer, 0, len);
        }

        gzis.close();
        out.close();

        return outputFile;
    } catch (IOException e) {
        LOG.error("fail to gunzip file: " + zipFile, e);
    }

    return null;
}

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From source file:com.navercorp.pinpoint.web.filter.Base64.java

public static byte[] decode(String s, int options) {
    byte[] bytes;
    try {/*ww w .jav  a  2s .  c o m*/
        bytes = s.getBytes("UTF-8");
    } catch (UnsupportedEncodingException var21) {
        bytes = s.getBytes();
    }

    bytes = decode(bytes, 0, bytes.length, options);
    if (bytes != null && bytes.length >= 4) {
        int head = bytes[0] & 255 | bytes[1] << 8 & '\uff00';
        if (35615 == head) {
            GZIPInputStream gzis = null;
            ByteArrayOutputStream baos = new ByteArrayOutputStream();

            try {
                gzis = new GZIPInputStream(new ByteArrayInputStream(bytes));
                byte[] buffer = new byte[2048];

                int length;
                while ((length = gzis.read(buffer)) >= 0) {
                    baos.write(buffer, 0, length);
                }

                bytes = baos.toByteArray();
            } catch (IOException var22) {
                ;
            } finally {
                try {
                    baos.close();
                } catch (Exception var20) {
                    LOG.error("error closing ByteArrayOutputStream", var20);
                }

                if (gzis != null) {
                    try {
                        gzis.close();
                    } catch (Exception var19) {
                        LOG.error("error closing GZIPInputStream", var19);
                    }
                }

            }
        }
    }

    return bytes;
}

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From source file:edu.ku.brc.specify.web.HttpLargeFileTransfer.java

/**
 * @param infileName/*  w w  w  .j a va 2s .c om*/
 * @param outFileName
 * @param changeListener
 * @return
 */
public static boolean uncompressFile(final String infileName, final String outFileName) {
    File file = new File(infileName);
    if (file.exists()) {
        long fileSize = file.length();
        if (fileSize > 0) {
            try {
                GZIPInputStream fis = new GZIPInputStream(new FileInputStream(infileName));
                BufferedOutputStream fos = new BufferedOutputStream(new FileOutputStream(outFileName));

                byte[] bytes = new byte[BUFFER_SIZE * 10];

                while (true) {
                    int len = fis.read(bytes);
                    if (len > 0) {
                        fos.write(bytes, 0, len);
                    } else {
                        break;
                    }
                }

                fis.close();
                fos.close();

                return true;

            } catch (IOException ex) {
                ex.printStackTrace();
            }
        } else {
            // file doesn't exist
        }
    } else {
        // file doesn't exist
    }
    return false;
}

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From source file:com.googlecode.jgenhtml.JGenHtmlUtils.java

/**
 * Unzips a file.//from   w  ww .j av  a2  s.  c  o m
 * @param gzippedFile A gzipped file.
 * @return The gunzipped version of the file.
 * @throws IOException If you screw up.
 */
public static File gunzip(File gzippedFile) throws IOException {
    OutputStream out = null;
    GZIPInputStream gzipInputStream = null;
    File gunzippedFile = new File(System.getProperty("java.io.tmpdir") + File.separatorChar
            + gzippedFile.getName().replace(".gz", ""));
    try {
        InputStream in = new FileInputStream(gzippedFile);
        gzipInputStream = new GZIPInputStream(in);
        out = new FileOutputStream(gunzippedFile);

        byte[] buf = new byte[1024];
        int len;
        while ((len = gzipInputStream.read(buf)) > 0) {
            out.write(buf, 0, len);
        }
    } finally {
        if (gzipInputStream != null) {
            gzipInputStream.close();
        }
        if (out != null) {
            out.close();
        }
    }
    return gunzippedFile;
}

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