Class FlateFilter


  • final class FlateFilter
    extends Filter
    Decompresses data encoded using the zlib/deflate compression method, reproducing the original text or binary data.
    • Field Detail

      • LOG

        private static final org.apache.commons.logging.Log LOG
    • Constructor Detail

      • FlateFilter

        FlateFilter()
    • Method Detail

      • decode

        public DecodeResult decode​(java.io.InputStream encoded,
                                   java.io.OutputStream decoded,
                                   COSDictionary parameters,
                                   int index)
                            throws java.io.IOException
        Description copied from class: Filter
        Decodes data, producing the original non-encoded data.
        Specified by:
        decode in class Filter
        Parameters:
        encoded - the encoded byte stream
        decoded - the stream where decoded data will be written
        parameters - the parameters used for decoding
        index - the index to the filter being decoded
        Returns:
        repaired parameters dictionary, or the original parameters dictionary
        Throws:
        java.io.IOException - if the stream cannot be decoded
      • decompress

        private void decompress​(java.io.InputStream in,
                                java.io.OutputStream out)
                         throws java.io.IOException,
                                java.util.zip.DataFormatException
        Throws:
        java.io.IOException
        java.util.zip.DataFormatException
      • encode

        protected void encode​(java.io.InputStream input,
                              java.io.OutputStream encoded,
                              COSDictionary parameters)
                       throws java.io.IOException
        Specified by:
        encode in class Filter
        Throws:
        java.io.IOException