Indices Class — netty Architecture

Source Code

codec-http3/src/main/java/io/netty/handler/codec/http3/QpackEncoder.java lines 520–543

    private static final class Indices {
        private int idx;
        // Let's just assume 4 indices for now that we will store here as max.
        private int[] array = new int[4];

        void add(int index) {
            if (idx == array.length) {
                // Double it if needed.
                array = Arrays.copyOf(array, array.length << 1);
            }
            array[idx++] = index;
        }

        void forEach(IndexConsumer consumer) throws QpackException {
            for (int i = 0; i < idx; i++) {
                consumer.accept(array[i]);
            }
        }

        @FunctionalInterface
        interface IndexConsumer {
            void accept(int idx) throws QpackException;
        }
    }