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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * accompanied this code).
 *
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package jdk.internal.net.http.hpack;

import java.io.IOException;
import java.nio.ByteBuffer;

Huffman coding.
Since:
9/**
 * Huffman coding.
 *
 * @since 9
 */
public final class Huffman {

    public interface Reader {

        void read(ByteBuffer source,
                  Appendable destination,
                  boolean isLast) throws IOException;

        
Brings this reader to the state it had upon construction.
/**
         * Brings this reader to the state it had upon construction.
         */
        void reset();
    }

    public interface Writer {

        Writer from(CharSequence input, int start, int end);

        boolean write(ByteBuffer destination);

        
Brings this writer to the state it had upon construction.
Returns:
this writer/**
         * Brings this writer to the state it had upon construction.
         *
         * @return this writer
         */
        Writer reset();

        
Calculates the number of bytes required to represent a subsequence of the given CharSequence using the Huffman coding. 
Params:
value – 
        characters
start – 
        the start index, inclusive
end – 
        the end index, exclusive
Throws:
NullPointerException – 
        if the value is null
IndexOutOfBoundsException –  if any invocation of value.charAt(i), where start <= i < end, throws an IndexOutOfBoundsException
Returns:
number of bytes/**
         * Calculates the number of bytes required to represent a subsequence of
         * the given {@code CharSequence} using the Huffman coding.
         *
         * @param value
         *         characters
         * @param start
         *         the start index, inclusive
         * @param end
         *         the end index, exclusive
         *
         * @return number of bytes
         * @throws NullPointerException
         *         if the value is null
         * @throws IndexOutOfBoundsException
         *         if any invocation of {@code value.charAt(i)}, where
         *         {@code start <= i < end}, throws an IndexOutOfBoundsException
         */
        int lengthOf(CharSequence value, int start, int end);

        default int lengthOf(CharSequence value) {
            return lengthOf(value, 0, value.length());
        }
    }
}