Examples of java.util.zip.GZIPInputStream

java.util.zip.GZIPInputStream
This class implements a stream filter for reading compressed data in the GZIP file format. @see InflaterInputStream @version 1.33, 04/07/06 @author David Connelly

public class tarTools {
  
  public static InputStream getInputStream(final String tarFileName) throws Exception{
    if (tarFileName.endsWith(".gz")) {
        try {
            return new GZIPInputStream(new FileInputStream(new File(tarFileName)));
        } catch (IOException e) {
            // this might happen if the stream is not in gzip format.
            // there may be a 'gz' extension, but it may stil be a raw tar file
            // this can be caused by 'one too much gzip-content header' that was attached
            // by a release file server

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        int count = 0;


        System.out.println("start processing");
        try {
            InputStream is = new BufferedInputStream(new FileInputStream(infile));
            if (gz) is = new GZIPInputStream(is);
            reader = new BufferedReader(new InputStreamReader(is));
            String line;
            while ((line = reader.readLine()) != null) {
                line = line.trim();
                if (line.length() > 0) {

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        int count = 0;


        System.out.println("start processing");
        try {
            InputStream is = new BufferedInputStream(new FileInputStream(infile));
            if (gz) is = new GZIPInputStream(is);
            reader = new BufferedReader(new InputStreamReader(is));
            String line;
            while ((line = reader.readLine()) != null) {
                line = line.trim();
                if (line.length() > 0) {

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        final long cleanuplimit = Math.max(50 * 1024 * 1024, MemoryControl.available() / 8);


        System.out.println("start processing");
        try {
            InputStream is = new BufferedInputStream(new FileInputStream(infile));
            if (gz) is = new GZIPInputStream(is);
            reader = new BufferedReader(new InputStreamReader(is));
            String line;
            while ((line = reader.readLine()) != null) {
                line = line.trim();
                if (line.length() > 0) {

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     * @throws IOException
     */
    public static byte[] decompress(byte[] compressedData) throws IOException {
        
        ByteArrayInputStream bis = new ByteArrayInputStream(compressedData);
        GZIPInputStream in = new GZIPInputStream(bis);
        
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        
        byte[] transferBuffer = new byte[4096];
        int read = 0;
        do {
            read = in.read(transferBuffer);
            if (read != -1) {
                bos.write(transferBuffer, 0, read);
            }
        } while (read != -1);
        in.close();
                
        in.close();
        bos.close();
        
        return bos.toByteArray();
    }

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    super(entity);
  }


  public InputStream getContent() throws IOException, IllegalStateException {
    if (gzipInputStream == null) {
      gzipInputStream = new GZIPInputStream(wrappedEntity.getContent());
    }
    return gzipInputStream;
  }

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        this.keys = new ConcurrentHashMap<String, Object>();
        
        if (file.exists()) {
            InputStream is = new FileInputStream(file);
            if (file.getName().endsWith(".gz")) {
                is = new GZIPInputStream(is);
            }
            final BufferedReader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
            String l;
            try {
                while ((l = reader.readLine()) != null) {

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     * @throws IOException
     */
    public static byte[] decompress(byte[] compressedData) throws IOException {
        
        ByteArrayInputStream bis = new ByteArrayInputStream(compressedData);
        GZIPInputStream in = new GZIPInputStream(bis);
        
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        
        byte[] transferBuffer = new byte[4096];
        int read = 0;
        do {
            read = in.read(transferBuffer);
            if (read != -1) {
                bos.write(transferBuffer, 0, read);
            }
        } while (read != -1);
        in.close();
                
        in.close();
        bos.close();
        
        return bos.toByteArray();
    }

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   * @throws IOException
   */
  public static String unzipStringFromBytes(byte[] bytes) throws IOException {
    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);

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    try {
      if(outFilename == null) {
        outFilename = inFilename.substring(0, inFilename.lastIndexOf("."));
      }
      
      GZIPInputStream in = new GZIPInputStream(new FileInputStream(inFilename));
      
      java.io.OutputStream out = new FileOutputStream(outFilename);
      
      
      byte[] buf = new byte[1024];
      int len;
      while ((len = in.read(buf)) > 0) {
        out.write(buf, 0, len);
      }
      
      in.close();
      out.close();
    } catch (Exception e) {
      throw e;
    }

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