Example usage for java.util.zip GZIPOutputStream write

Introduction

In this page you can find the example usage for java.util.zip GZIPOutputStream write.

Prototype

public synchronized void write(byte[] buf, int off, int len) throws IOException 

Source Link

Document

Writes array of bytes to the compressed output stream.

Usage

From source file:cn.sharesdk.analysis.net.NetworkHelper.java

public static String Base64Gzip(String str) {
    ByteArrayInputStream bais = new ByteArrayInputStream(str.getBytes());
    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    String result = null;//from   ww  w  .j a v a  2  s .  co m
    // gzip
    GZIPOutputStream gos;
    try {
        gos = new GZIPOutputStream(baos);
        int count;
        byte data[] = new byte[1024];
        while ((count = bais.read(data, 0, 1024)) != -1) {
            gos.write(data, 0, count);
        }
        gos.finish();
        gos.close();

        byte[] output = baos.toByteArray();
        baos.flush();
        baos.close();
        bais.close();

        result = Base64.encodeToString(output, Base64.NO_WRAP);

    } catch (IOException e) {
        e.printStackTrace();
        Ln.e("NetworkHelper", "Base64Gzip == >>", e);
    }

    //Ln.i("after base64gizp", result);
    return result;
}

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From source file:Main.java

public static String compressGzipFile(String filename) {
    if (android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED)) {

        File flockedFilesFolder = new File(
                Environment.getExternalStorageDirectory() + File.separator + "FlockLoad");
        System.out.println("FlockedFileDir: " + flockedFilesFolder);
        String uncompressedFile = flockedFilesFolder.toString() + "/" + filename;
        String compressedFile = flockedFilesFolder.toString() + "/" + "gzip.zip";

        try {// w  w  w  . j  ava 2 s .  c  o m
            FileInputStream fis = new FileInputStream(uncompressedFile);
            FileOutputStream fos = new FileOutputStream(compressedFile);
            GZIPOutputStream gzipOS = new GZIPOutputStream(fos) {
                {
                    def.setLevel(Deflater.BEST_COMPRESSION);
                }
            };

            byte[] buffer = new byte[1024];
            int len;
            while ((len = fis.read(buffer)) != -1) {
                gzipOS.write(buffer, 0, len);
            }
            //close resources
            gzipOS.close();
            fos.close();
            fis.close();
            return compressedFile;
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return null;

}

---

From source file:net.zyuiop.remoteworldloader.utils.CompressionUtils.java

public static File compressFile(File source) throws IOException {
    String tmpName = source.getName() + ".tmp";
    File tempFile = new File(source.getParentFile(), tmpName);
    FileUtils.copyFile(source, tempFile);

    String targetName = source.getName() + ".gz";
    File file = new File(source.getParentFile(), targetName);

    if (file.exists())
        file.delete();//from  w  w  w.  j  a va2  s .  co m
    file.createNewFile();

    byte[] buffer = new byte[1024];

    try {
        GZIPOutputStream out = new GZIPOutputStream(new FileOutputStream(file));
        FileInputStream in = new FileInputStream(tempFile);

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

        in.close();
        out.close();
        tempFile.delete();
    } catch (IOException ex) {
        ex.printStackTrace();
    }

    Bukkit.getLogger().info("Compressed file " + source.getName() + " to " + file.getName() + ".");
    return file;
}

---

From source file:cn.sharesdk.net.NetworkHelper.java

public static String Base64Gzip(String str) {
    ByteArrayInputStream bais = new ByteArrayInputStream(str.getBytes());
    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    String result = null;/*from ww  w .  j  a  va2 s  .  co m*/
    // gzip
    GZIPOutputStream gos;
    try {
        gos = new GZIPOutputStream(baos);
        int count;
        byte data[] = new byte[1024];
        while ((count = bais.read(data, 0, 1024)) != -1) {
            gos.write(data, 0, count);
        }
        gos.finish();
        gos.close();

        byte[] output = baos.toByteArray();
        baos.flush();
        baos.close();
        bais.close();

        result = Base64.encodeToString(output, Base64.NO_WRAP);
    } catch (IOException e) {
        e.printStackTrace();
        Ln.i("NetworkHelper", "Base64Gzip == >>", e);
    }
    return result;
}

---

From source file:org.cloudata.core.common.io.CWritableUtils.java

public static int writeCompressedByteArray(DataOutput out, byte[] bytes) throws IOException {
    if (bytes != null) {
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        GZIPOutputStream gzout = new GZIPOutputStream(bos);
        gzout.write(bytes, 0, bytes.length);
        gzout.close();//from w ww .  j  a va2 s.  c  om
        byte[] buffer = bos.toByteArray();
        int len = buffer.length;
        out.writeInt(len);
        out.write(buffer, 0, len);
        /* debug only! Once we have confidence, can lose this. */
        return ((bytes.length != 0) ? (100 * buffer.length) / bytes.length : 0);
    } else {
        out.writeInt(-1);
        return -1;
    }
}

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

public static byte[] compress(byte[] bytes) {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    try {//from  w w w .j  ava  2s.  c o  m
        GZIPOutputStream gzip = new GZIPOutputStream(baos);
        gzip.write(bytes, 0, bytes.length);
        gzip.finish();
        byte[] fewerBytes = baos.toByteArray();
        gzip.close();
        baos.close();
        gzip = null;
        baos = null;
        return fewerBytes;
    } catch (IOException e) {
        throw new FacesException(e);
    }
}

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From source file:org.commoncrawl.util.shared.ArcFileReaderTests.java

/**
 * Gzip passed bytes. Use only when bytes is small.
 * /*from  www. ja v  a 2  s  .c o m*/
 * @param bytes
 *          What to gzip.
 * @return A gzip member of bytes.
 * @throws IOException
 */
static byte[] gzip(byte[] bytes) throws IOException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    GZIPOutputStream gzipOS = new GZIPOutputStream(baos);
    gzipOS.write(bytes, 0, bytes.length);
    gzipOS.close();
    return baos.toByteArray();
}

---

From source file:org.wso2.carbon.apimgt.impl.GZIPUtils.java

public static void compressFile(String sourcePath, String destinationPath) throws APIManagementException {
    if (log.isDebugEnabled()) {
        log.debug("Compressing file : " + sourcePath + " to : " + destinationPath);
    }/*  w  w w.ja  va 2 s  .com*/
    byte[] buffer = new byte[BUFFER_SIZE];
    GZIPOutputStream gzipOutputStream = null;
    FileOutputStream fileOutputStream = null;
    FileInputStream fileInputStream = null;

    try {
        fileOutputStream = new FileOutputStream(destinationPath);
        gzipOutputStream = new GZIPOutputStream(fileOutputStream);
        fileInputStream = new FileInputStream(sourcePath);

        int length = 0;
        while ((length = fileInputStream.read(buffer)) > 0) {
            gzipOutputStream.write(buffer, 0, length);
        }
        gzipOutputStream.finish();
    } catch (IOException e) {
        throw new APIManagementException(
                "Error while compressing file at " + sourcePath + " to" + destinationPath, e);
    } finally {
        IOUtils.closeQuietly(fileInputStream);
        IOUtils.closeQuietly(fileOutputStream);
        IOUtils.closeQuietly(gzipOutputStream);
    }
}

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

/**
 * Compresses the input file into a GZIP file container.
 *
 * @param anInPathFileName The file name to be compressed.
 * @param aGzipPathFileName The file name of the ZIP container.
 *
 * @throws IOException Related to opening the file streams and
 * related read/write operations./*from   ww w .j  a  va2 s  .c om*/
 */
public static void gzipFile(String anInPathFileName, String aGzipPathFileName) throws IOException {
    int byteCount;

    FileInputStream fileInputStream = new FileInputStream(anInPathFileName);
    FileOutputStream fileOutputStream = new FileOutputStream(aGzipPathFileName);
    GZIPOutputStream gzipOutputStream = new GZIPOutputStream(fileOutputStream);

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

    gzipOutputStream.close();
    fileOutputStream.close();
    fileInputStream.close();
}

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From source file:Main.java

public static void compressFile(String inputFilePath, boolean deleteSource) throws IOException {
    byte[] buffer = new byte[1024];
    FileOutputStream fos = null;//from w  w  w.j  av a  2 s.  c om
    GZIPOutputStream gzos = null;
    FileInputStream fis = null;

    try {
        fos = new FileOutputStream(inputFilePath + ".gz");
        gzos = new GZIPOutputStream(fos);

        fis = new FileInputStream(inputFilePath);
        //         String zipEntryName = inputFilePath.substring(inputFilePath.lastIndexOf(File.separator) + 1);         
        //         gzos.putNextEntry(new ZipEntry(zipEntryName));

        int length;
        while ((length = fis.read(buffer)) > 0) {
            gzos.write(buffer, 0, length);
        }
    } finally {
        gzos.close();
        fos.close();
        fis.close();
    }

    if (deleteSource) {
        new File(inputFilePath).delete();
    }
}

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