ByteProcessor Type — netty Architecture

Source Code

common/src/main/java/io/netty/util/ByteProcessor.java lines 25–148

public interface ByteProcessor {
    /**
     * A {@link ByteProcessor} which finds the first appearance of a specific byte.
     */
    class IndexOfProcessor implements ByteProcessor {
        private final byte byteToFind;

        public IndexOfProcessor(byte byteToFind) {
            this.byteToFind = byteToFind;
        }

        @Override
        public boolean process(byte value) {
            return value != byteToFind;
        }
    }

    /**
     * A {@link ByteProcessor} which finds the first appearance which is not of a specific byte.
     */
    class IndexNotOfProcessor implements ByteProcessor {
        private final byte byteToNotFind;

        public IndexNotOfProcessor(byte byteToNotFind) {
            this.byteToNotFind = byteToNotFind;
        }

        @Override
        public boolean process(byte value) {
            return value == byteToNotFind;
        }
    }

    /**
     * Aborts on a {@code NUL (0x00)}.
     */
    ByteProcessor FIND_NUL = new IndexOfProcessor((byte) 0);

    /**
     * Aborts on a non-{@code NUL (0x00)}.
     */
    ByteProcessor FIND_NON_NUL = new IndexNotOfProcessor((byte) 0);

    /**
     * Aborts on a {@code CR ('\r')}.
     */
    ByteProcessor FIND_CR = new IndexOfProcessor(CARRIAGE_RETURN);

    /**
     * Aborts on a non-{@code CR ('\r')}.
     */
    ByteProcessor FIND_NON_CR = new IndexNotOfProcessor(CARRIAGE_RETURN);

    /**
     * Aborts on a {@code LF ('\n')}.
     */
    ByteProcessor FIND_LF = new IndexOfProcessor(LINE_FEED);

    /**
     * Aborts on a non-{@code LF ('\n')}.
     */
    ByteProcessor FIND_NON_LF = new IndexNotOfProcessor(LINE_FEED);

    /**
     * Aborts on a semicolon {@code (';')}.
     */
    ByteProcessor FIND_SEMI_COLON = new IndexOfProcessor((byte) ';');

    /**
     * Aborts on a comma {@code (',')}.
     */
    ByteProcessor FIND_COMMA = new IndexOfProcessor((byte) ',');

    /**
     * Aborts on a ascii space character ({@code ' '}).
     */
    ByteProcessor FIND_ASCII_SPACE = new IndexOfProcessor(SPACE);

    /**
     * Aborts on a {@code CR ('\r')} or a {@code LF ('\n')}.
     */