Examples of java.util.zip.Deflater.reset()

java.util.zip.Deflater.reset()
Resets deflater so that a new set of input data can be processed. Keeps current compression level and strategy settings.


    TemporaryBuffer.Heap delta = delta(otp);
    out.writeHeader(otp, delta.length());


    Deflater deflater = deflater();
    deflater.reset();
    DeflaterOutputStream dst = new DeflaterOutputStream(out, deflater);
    delta.writeTo(dst, null);
    dst.finish();
    typeStats.cntDeltas++;
    typeStats.deltaBytes += out.length() - otp.getOffset();

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    out.resetCRC32();
    otp.setOffset(out.length());
    out.writeHeader(otp, ldr.getSize());


    deflater.reset();
    DeflaterOutputStream dst = new DeflaterOutputStream(out, deflater);
    ldr.copyTo(dst);
    dst.finish();
  }

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    TemporaryBuffer.Heap delta = delta(otp);
    out.writeHeader(otp, delta.length());


    Deflater deflater = deflater();
    deflater.reset();
    DeflaterOutputStream dst = new DeflaterOutputStream(out, deflater);
    delta.writeTo(dst, null);
    dst.finish();
    typeStats.cntDeltas++;
    typeStats.deltaBytes += out.length() - otp.getOffset();

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      finally
      {
        //Reset and put back
        if(compresser != null)
        {
          compresser.reset();
          compresser.setInput(_EMPTY);
          TransientHolder<Deflater> th = TransientHolder.newTransientHolder(compresser);
          sessionMap.put("PAGE_STATE_DEFLATER", th);
        }
      }

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        if (baos != null) {
          nbrEntries ++;
          dosZipSources[i].close();
          long startTime = System.currentTimeMillis();
          int zipBufSize = Math.max(1024, baos.size() / 100);
          deflater.reset();
          DeflaterOutputStream cds = new DeflaterOutputStream(baosZipped, deflater, zipBufSize);       
          baos.writeTo(cds);
          cds.close();
          idxAndLen.add(i);
          if (doMeasurement) {

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      if (baos != null) {
        nbrEntries ++;
        dosZipSources[i].close();
        long startTime = System.currentTimeMillis();
        int zipBufSize = Math.max(1024, baos.size() / 100);
        deflater.reset();
        DeflaterOutputStream cds = new DeflaterOutputStream(baosZipped, deflater, zipBufSize);       
        baos.writeTo(cds);
        cds.close();
        idxAndLen.add(i);
        if (doMeasurements) {

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                byte[] compressed_payload=new byte[length];
                int compressed_size;
                Deflater deflater=null;
                try {
                    deflater=deflater_pool.take();
                    deflater.reset();
                    deflater.setInput(payload, msg.getOffset(), length);
                    deflater.finish();
                    deflater.deflate(compressed_payload);
                    compressed_size=deflater.getTotalOut();

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    }


    public int compress(byte[] input, int inputOffset, int inputLength, ICompressor.WrappedArray output, int outputOffset) throws IOException
    {
        Deflater def = deflater.get();
        def.reset();
        def.setInput(input, inputOffset, inputLength);
        def.finish();
        if (def.needsInput())
            return 0;

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        int compressedDataLength = compresser.deflate(buffer);
        byte[] output = new byte[compressedDataLength];
        for (int i=0; i<compressedDataLength; i++) {
            output[i] = buffer[i];
        }
        compresser.reset();
        return output;
    }


    protected String base64Encode(byte[] data) {
        String encodedString = Base64.encodeBase64String(data);

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    final Deflater deflater = deflater();
    final ObjectLoader ldr = reader.open(otp, otp.getType());


    out.writeHeader(otp, ldr.getSize());


    deflater.reset();
    DeflaterOutputStream dst = new DeflaterOutputStream(out, deflater);
    ldr.copyTo(dst);
    dst.finish();
  }

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