e449. compressing a byte array.txt

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See also e450 Decompressing a Byte Array. 
    byte[] input = "some some bytes to compress".getBytes();
    
    // Create the compressor with highest level of compression
    Deflater compressor = new Deflater();
    compressor.setLevel(Deflater.BEST_COMPRESSION);
    
    // Give the compressor the data to compress
    compressor.setInput(input);
    compressor.finish();
    
    // Create an expandable byte array to hold the compressed data.
    // You cannot use an array that's the same size as the orginal because
    // there is no guarantee that the compressed data will be smaller than
    // the uncompressed data.
    ByteArrayOutputStream bos = new ByteArrayOutputStream(input.length);
    
    // Compress the data
    byte[] buf = new byte[1024];
    while (!compressor.finished()) {
        int count = compressor.deflate(buf);
        bos.write(buf, 0, count);
    }
    try {
        bos.close();
    } catch (IOException e) {
    }
    
    // Get the compressed data
    byte[] compressedData = bos.toByteArray();