Examples of java.util.zip.Inflater.needsInput()

java.util.zip.Inflater.needsInput()
Returns true if no data remains in the input buffer. This can be used to determine if #setInput should be called in order to provide more input. @return true if no data remains in the input buffer

  public void decompress(ByteBuffer in, ByteBuffer out) throws IOException {
    Inflater inflater = new Inflater(true);
    inflater.setInput(in.array(), in.arrayOffset() + in.position(),
                      in.remaining());
    while (!(inflater.finished() || inflater.needsDictionary() ||
             inflater.needsInput())) {
      try {
        int count = inflater.inflate(out.array(),
                                     out.arrayOffset() + out.position(),
                                     out.remaining());
        out.position(count + out.position());

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                    Inflater decompressor = new Inflater();
                    
                    int lenRead = 0;
                    while (true)
                    {
                        if (decompressor.needsInput())
                            lenRead = query.remaining() < 1024 ? query.remaining() : 1024;
                            query.get(inBuffer, 0, lenRead);
                            decompressor.setInput(inBuffer, 0, lenRead);
                        
                        int lenWrite = 0;

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                    Inflater decompressor = new Inflater();
                    
                    int lenRead = 0;
                    while (true)
                    {
                        if (decompressor.needsInput())
                            lenRead = query.remaining() < 1024 ? query.remaining() : 1024;
                            query.get(inBuffer, 0, lenRead);
                            decompressor.setInput(inBuffer, 0, lenRead);
                        
                        int lenWrite = 0;

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                    Inflater decompressor = new Inflater();


                    int lenRead = 0;
                    while (true)
                    {
                        if (decompressor.needsInput())
                            lenRead = query.remaining() < 1024 ? query.remaining() : 1024;
                        query.get(inBuffer, 0, lenRead);
                        decompressor.setInput(inBuffer, 0, lenRead);


                        int lenWrite = 0;

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                    Inflater decompressor = new Inflater();


                    int lenRead = 0;
                    while (true)
                    {
                        if (decompressor.needsInput())
                            lenRead = query.remaining() < 1024 ? query.remaining() : 1024;
                        query.get(inBuffer, 0, lenRead);
                        decompressor.setInput(inBuffer, 0, lenRead);


                        int lenWrite = 0;

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    byte byteArray[] = { 2, 3, 4, 't', 'y', 'u', 'e', 'w', 7, 6, 5, 9 };
    inflate.setInput(byteArray);
    assertFalse(
        "methodNeedsInput returned true when the input buffer is full",
        inflate.needsInput());


    inflate.reset();
    byte byteArrayEmpty[] = new byte[0];
    inflate.setInput(byteArrayEmpty);
    assertTrue(

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    inflate.reset();
    byte byteArrayEmpty[] = new byte[0];
    inflate.setInput(byteArrayEmpty);
    assertTrue(
        "needsInput give wrong boolean value as a result of an empty input buffer",
        inflate.needsInput());
  }


  /**
   * @tests java.util.zip.Inflater#reset()
   */

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    byte outPutInf[] = new byte[100];
    int y = 0;
    Inflater inflate = new Inflater();
    try {
      while (!(inflate.finished())) {
        if (inflate.needsInput()) {
          inflate.setInput(outPutBuff1);
        }
        y += inflate.inflate(outPutInf, y, outPutInf.length - y);
      }
    } catch (DataFormatException e) {

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    // decompressed data


    inflate.reset();
    try {
      while (!(inflate.finished())) {
        if (inflate.needsInput()) {
          inflate.setInput(outPutBuff1);
        }
        inflate.inflate(outPutInf);
      }
    } catch (DataFormatException e) {

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            // The RI detects malformed data on the malformed input { -1 }. Both
            // this implementation and the native zlib API return "need input"
            // on that data. This is an error if the stream is exhausted, but
            // not one that results in an exception in the Inflater API.
            assertTrue(inflater.needsInput());
        } catch (DataFormatException e) {
            // expected
        }


        inflater = new Inflater();

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